研究者詳細 - 寺坂　宏一

Multicellular organisms demonstrate a hierarchical organization where multiple cells collectively form tissues, thereby enabling higher-order cooperative functionalities beyond the capabilities of individual cells. Drawing inspiration from this biological organization, assemblies of multiple protocells are developed to create novel functional materials with emergent higher-order cooperative functionalities. This paper presents new artificial tissues derived from multiple vesicles, which serve as protocellular models. These tissues are formed and manipulated through non-covalent interactions triggered by a salt bridge. Exhibiting pH-sensitive reversible formation and destruction under neutral conditions, these artificial vesicle tissues demonstrate three distinct higher-order cooperative functionalities: transportation of large cargoes, photo-induced contractions, and enhanced survivability against external threats. The rapid assembly and disassembly of these artificial tissues in response to pH variations enable controlled mechanical task performance. Additionally, the self-healing property of these artificial tissues indicates robustness against external mechanical damage. The research suggests that these vesicles can detect specific pH environments and spontaneously assemble into artificial tissues with advanced functionalities. This leads to the possibility of developing intelligent materials with high environmental specificity, particularly for applications in soft robotics.

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Extraction of 5-Hydroxymethylfurfural under Hydrogen Peroxide in Liquid–Liquid Slug Flow of Water / Methylisobutylketone Biphasic System and Effect of Hemin

Shimanouchi T., Sanagi S., Fujioka S., Terasaka K., Kimura Y.

Solvent Extraction Research and Development, Japan 31 （ 2 ） 67 - 75 2024年

ISSN 13417215

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微細なバブルに関するサイエンスの発展

寺坂宏一

表面と真空（日本表面真空学会） 66 （ 11 ） 629 - 630 2023年11月

研究論文（学術雑誌）

ファインバブルの基礎と食品工学への適用

寺坂宏一

食品機械装置（食品機械装置） 711 （ 11 ） 10 - 15 2023年11月

Photoinduced phase transition between vesicles and coacervates using low-molecular-weight catanionic amphiphiles

Kojima T., Terasaka K., Asakura K., Banno T.

Colloids and Surfaces A: Physicochemical and Engineering Aspects （Colloids and Surfaces A: Physicochemical and Engineering Aspects） 669 2023年07月

ISSN 09277757

Amphiphiles form various molecular self-assemblies in the aqueous phase, such as vesicles and coacervates, depending on molecular properties. Recently, phase transitions between vesicles and coacervates have drawn much attention because the switching between “closed” and “open” compartments could achieve the controllability of molecular sequestrations. We expect that the photoinduced drastic change in the molecular structure of catanionic amphiphiles comprising azobenzene-containing cationic amphiphiles (Azo) and anionic sodium dodecyl sulfate causes the transition. Self-assemblies prepared by a thin-film hydration method were observed using microscopy under UV and subsequent visible-light illumination. Additionally, investigation of selectivity for molecular sequestration and assay of enzymatic reactions in the self-assemblies were conducted. Photoinduced reversible phase transitions between vesicles and coacervates occurred owing to the photoisomerization of Azo. The formed coacervates had selectivity for molecular sequestration. Additionally, the transition achieved fusion of different vesicles via coacervates. Although coacervates are generally known to facilitate enzymatic reactions, the reactions were inhibited in the presence of the formed self-assemblies due to the deactivation of enzymes. Our results represent rapid and non-invasive systems of reversible vesicle–coacervate transitions. Furthermore, the findings provide a new aspect of coacervates in which catanionic low-molecular-weight amphiphiles could act as suppressors of chemical reactions.

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Ultrafine bubble generation by rapid condensation of mixed vapor of non-condensable gas and steam

Terasaka K., Taguchi K., Tetsuka T., Fujioka S.

Chemical Engineering Science （Chemical Engineering Science） 263 2022年12月

ISSN 00092509

Although the mechanism of ultrafine bubble generation has not yet been elucidated, we believe that the state of gas-saturated water before the generation of ultrafine bubbles is the most important factor in the mechanism of ultrafine bubble generation. Therefore, we proposed the hypothesis that the spatial distribution of dissolved gas molecules among the water molecules before the ultrafine bubble formation is stared has a significant effect on the formation of ultrafine bubble suspending water. Based on this hypothesis, we succeeded in generating ultrafine bubbles of sufficient number concentration in the condensate by rapidly condensing a well mixture of non-condensable gas and vapor by cooling. The number concentration of the generated ultrafine bubbles increased almost in proportion to the condensation rate of the vapor. Therefore, it was found that promoting the formation of bubble nuclei from dissolved gas molecules existing between water molecules in the condensate and suppressing bubble growth led to an increase in the number concentration of ultrafine bubbles. The principle of ultrafine bubble generation in this invention not only simplifies the generation of ultrafine bubble water but also enables the control of the number concentration of ultrafine bubbles in water.

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Enhanced enzyme stability and gas utilization by microbubble aeration applying microporous aerators

Thomas B., Ohde D., Matthes S., Bubenheim P., Terasaka K., Schlüter M., Liese A.

Catalysis Science and Technology （Catalysis Science and Technology） 13 （ 4 ） 1098 - 1110 2022年12月

研究論文（学術雑誌）, ISSN 20444753

During the optimization of processes in biocatalysis, the limitations of mass transfer and enzyme stability have to be overcome. To achieve these goals, aeration with microbubbles is advantageous by providing favorable properties, which include high gas utility, low-pressure drop, and reduced foam formation. In this study, the influences of microbubble, classic sub-millibubble and macrobubble aeration on enzyme stability and gas utility are compared. Using five enzymes, the half-life was investigated by comparing the microbubble aeration with a 2 μm porous sintered frit to the macrobubble aeration with a 5 mm open pipe, both adjusted to provide a constant kLa of 160 h−1. Furthermore, the half-life of a glucose oxidase was investigated by variation of the kLa in the range of 40 to 350 h−1 and the mode of the aeration system comparing the 2 μm and 10 μm sintered frit as well as the 5 mm open pipe. In both experimental set-ups, it was demonstrated that the aeration with microbubbles using the 2 μm sintered frit was beneficial for reaching high levels of enzyme stability. From this, we discovered that the interfacial area renewal rate plays an important role in the process of enzyme deactivation, which changes depending on the aeration mode.

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超純水中の空気ウルトラファインバブルの保存、輸送、濃縮、希釈及び除去

寺坂宏一, 田中俊也

混相流（日本混相流学会） 36 （ 1 ） 4 - 11 2022年04月

研究論文（学術雑誌）, 共著, 筆頭著者

鉄道各所へのウルトラファインバブル水の応用* （ブラシ洗浄機による洗浄効果とクロス拭き時の摩擦低減効果）

鈴木隆起, 赤対秀明, 秦隆志, 西内悠祐, 多田佳織, 早水庸隆, 藤井貴敏, 氷室昭三, 寺坂宏一

混相流（日本混相流学会） 36 （ 1 ） 28 - 35 2022年04月

研究論文（学術雑誌）, 最終著者

Microbubble generation with rapid dissolution of ammonia (NH<inf>3</inf>)-hydrogen (H<inf>2</inf>) mixed gas fed from a nozzle into water

Kobayashi T., Fujioka S., Tanaka S., Terasaka K.

Chemical Engineering Science （Chemical Engineering Science） 248 2022年02月

ISSN 00092509

Because of their useful characteristics, microbubbles attracted much interest in industry and medicine. In this study, we developed a novel method of generating microbubbles through the chemical absorption of ammonia (NH3). By using an ultrahigh-speed camera, consecutive images of bubble formation were captured, and the microbubble generation mechanism was investigated. The effects of the gas flow rate and ammonia concentration in the liquid phase on the size of the microbubbles were examined. The hydrogen (H2) gas flow rate was found not to demonstrate a significant effect on the bubble diameter. The diameter of the microbubbles increased as the superficial velocity of the gas mixture (NH3 – H2) decreased.

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Unique properties of fine bubbles in the electrochemical reduction of carbon dioxide using boron-doped diamond electrodes

Tomisaki M., Natsui K., Fujioka S., Terasaka K., Einaga Y.

Electrochimica Acta （Electrochimica Acta） 389 2021年09月

ISSN 00134686

The electrochemical CO2 reduction on boron-doped diamond (BDD) electrodes in an aqueous solution with fine bubbles was studied. The overpotential decreased and the production of carbon monoxide was promoted in the CO2 reduction with fine bubbles compared to that without fine bubbles. It is suggested that fine bubbles in solution could facilitate the mass transport and also act as the catalyst for producing carbon monoxide. Potential-dependent in-situ attenuated total reflectance-infrared (ATR-IR) measurements confirmed the catalytic activity, showing that in solutions with CO2 fine bubbles the CO2•– intermediate or the CO2 molecules themselves become stabilized near the electrode and these can be adsorbed on the electrode surface more easily compared to using solutions without CO2 fine bubbles. The reported work is a first step in understanding the effects of fine bubbles in CO2 reduction reactions.

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Destabilization of ultrafine bubbles in water using indirect ultrasonic irradiation

Tanaka S., Kobayashi H., Ohuchi S., Terasaka K., Fujioka S.

Ultrasonics Sonochemistry （Ultrasonics Sonochemistry） 71 2021年03月

ISSN 13504177

© 2020 The Authors Ultrafine bubble (UFB) is a bubble with a diameter of less than 1 μm. Little attention has been paid to the defoaming and removal of UFBs. This study proposes a method to destabilize UFBs by using indirect ultrasonic irradiation. Besides, the destabilization mechanism of UFB was investigated. The ultrasonic frequency was 1.6 MHz and the dissipated power was 30 W. UFB dispersions were prepared using two different types of bubble generators: pressurized dissolution method and swirling liquid flow method. The effects of ultrasonic irradiation on the stability of UFBs were evaluated by particle tracking analysis (PTA) and electrophoretic zeta potential measurement. Results showed that the indirect ultrasonic irradiation for 30 min reduced the number concentration of UFBs by 90% regardless of the generation method. This destabilization was attributed to a decrease in the magnitude of zeta potential of UFBs due to the changes in pH and electrical conductivity. These changes in the electrochemical properties were caused by the formation of nitric acid. To study the destabilization mechanism, the pH of the UFB dispersions were modified by titration; the chemical and mechanical effects of ultrasound were separately examined. It was found that not only the chemical effect caused by the formation of nitric acid but also the mechanical effect contributed to the destabilization of UFB. Feasibility studies were also performed for UFBs in an aqueous surfactant solution and UFBs in a solid particle dispersion. The proposed method selectively destabilized UFBs in the solutions.

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Microbubble enhanced mass transfer efficiency of CO<inf>2</inf>capture utilizing aqueous triethanolamine for enzymatic resorcinol carboxylation

Ohde D., Thomas B., Matthes S., Tanaka S., Bubenheim P., Terasaka K., Schlüter M., Liese A.

RSC Advances （RSC Advances） 11 （ 7 ） 4087 - 4096 2021年01月

研究論文（学術雑誌）

The present study focuses on the aeration of aqueous triethanolamine acting as reaction medium for biocatalytic carboxylations. For enhancing mass transfer in a bubble column reactor, microbubble aeration is applied and compared to conventional macrobubble aeration. Application of a 0.5 μm porous sparger enables microbubble CO2 aeration with bubble size distributions below 150 μm in Sauter mean diameter, correlating with the highest measured mass transfer rates. During CO2 saturation of the aqueous triethanolamine, bubble size distributions changed according to the level of CO2 saturation. For microbubbles, less foaming was observed compared to macrobubble aeration by a 10 μm porous sparger. This microbubble effect is attributed to their accelerated dissolution assisted by the Laplace pressure lowering the amount of bubbles reaching the surface of the liquid. The experiments reveal that the rate of interfacial area generation, which is calculated based on measured bubble size distributions, influences the biocatalyst activity.

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Experimental study and prediction by computational fluid dynamics on self-induced sloshing due to bubble flow in a rectangular vessel

Aoki R., Fujioka S., Terasaka K.

Journal of Chemical Engineering of Japan （Journal of Chemical Engineering of Japan） 54 （ 2 ） 51 - 57 2021年

ISSN 00219592

Self-induced sloshing is an oscillatory phenomenon of a free liquid surface due to the flow of a fluid. This phenomenon has been reported in some gas–liquid reactors, and it is important to predict and prevent its occurrence for the safe operation of the reactors. However, the fundamental knowledge on the self-induced sloshing by bubble flow, such as the frequency and amplitude, is insufficient, and the occurrence condition has not been clarified. The purpose of this study is to investigate the characteristics of self-induced sloshing by bubble flow experimentally. We attempt to reproduce self-induced sloshing by using computational fluid dynamics (CFD) and establish a CFD model for the prediction of the occurrence of self-induced sloshing. In the experiments, air bubbles were dispersed into a liquid from the bottom of a rectangular vessel. The effects of the air flow rate and static liquid height on the characteristics of self-induced sloshing were investigated experimentally by image analysis. The occurrence of self-induced sloshing was confirmed by increasing the airflow rate at a specific static liquid height. The amplitude reached a maximum at the static liquid height, where self-induced sloshing was most likely to occur, and the frequency decreased with increasing static liquid height. Next, in order to reproduce the self-induced sloshing through CFD, an appropriate drag model of the bubbles was selected. Although the amplitude was overestimated due to the absence of the foam layer, the predicted frequency agreed well with the experimental value. Finally, the movement of the circulation flow was analyzed, and its correlation with the self-induced sloshing was clarified.

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Characterization of water/organic biphasic system in liquid-liquid slug flow under hydrothermal conditions: Solvation, vorticity, and hydrophobicity

Shimanouchi T., Fujioka S., Tanifuji T., Yamamoto K., Terasaka K., Kimura Y.

Solvent Extraction Research and Development （Solvent Extraction Research and Development） 28 （ 1 ） 21 - 35 2021年

ISSN 13417215

The microcapillary was combined with the liquid-liquid slug flow to build the separation field. The partition behavior of seventeen kinds of substrates was investigated by using six kinds of water/organic biphasic systems under hydrothermal conditions (25 - 190° C at 10 MPa). The scale of hydrophobicity (HF) of water/organic biphasic system was estimated. The HF value for the biphasic system used here was comparable to the conventional aqueous two-phase systems and depended on the (de)solvation of substrates by water and organic solvent. Besides, the vortex field in the slug contributed to the enhanced mass transfer of substrates. Those results are available for the selection of water/organic biphasic system as the reactive separation of target materials.

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空気微細気泡A重油による高速ディーゼル機関の燃費とNOX低減

山下裕史,工藤達司,中武靖仁,田中大,川原秀夫,寺坂宏一,河原寛,後藤英親

日本マリンエンジニアリング学会誌 56 （ 4 ） 152 - 158 2021年

Comparative investigation of fine bubble and macrobubble aeration on gas utility and biotransformation productivity

Thomas B., Ohde D., Matthes S., Engelmann C., Bubenheim P., Terasaka K., Schlüter M., Liese A.

Biotechnology and Bioengineering （Biotechnology and Bioengineering） 118 （ 1 ） 130 - 141 2021年

研究論文（学術雑誌）, 共著, ISSN 00063592

The sufficient provision of oxygen is mandatory for enzymatic oxidations in aqueous solution, however, in process optimization this still is a bottleneck that cannot be overcome with the established methods of macrobubble aeration. Providing higher mass transfer performance through microbubble aerators, inefficient aeration can be overcome or improved. Investigating the mass transport performance in a model protein solution, the microbubble aeration results in higher kLa values related to the applied airstream in comparison with macrobubble aeration. Comparing the aerators at identical kLa of 160 and 60 1/h, the microbubble aeration is resulting in 25 and 44 times enhanced gas utility compared with aeration with macrobubbles. To prove the feasibility of microbubbles in biocatalysis, the productivity of a glucose oxidase catalyzed biotransformation is compared with macrobubble aeration as well as the gas-saving potential. In contrast to the expectation that the same productivities are achieved at identically applied kLa, microbubble aeration increased the gluconic acid productivity by 32% and resulted in 41.6 times higher oxygen utilization. The observed advantages of microbubble aeration are based on the large volume-specific interfacial area combined with a prolonged residence time, which results in a high mass transfer performance, less enzyme deactivation by foam formation, and reduced gas consumption. This makes microbubble aerators favorable for application in biocatalysis.

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ウルトラファインバブル水の国際輸送

田中俊也, 成瀬祐里, 寺坂宏一, 藤岡沙都子, 山本陽子, 野口雄介, 山崎京香, 庄村拓也, 原田駿

混相流 35 （ 1 ） 185 - 196 2021年

Ultrafine Bubbles

K. Terasaka, K. Yasui, W. Kanematsu, N. Aya

Jenny Stanford Publishing 2021年

ISSN 979- 981-487-7596

加減圧の繰り返し操作による水中からのウルトラファインバブル生成

山崎京香,　寺坂宏一,　藤岡沙都子

混相流（日本混相流学会） 34 （ 4 ） 532 - 540 2020年12月

研究論文（学術雑誌）, 共著

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Hydrodynamic and mass transfer correlation in a microbubble aerated stirred tank reactor

Matthes S., Thomas B., Ohde D., Hoffmann M., Bubenheim P., Liese A., Tanaka S., Terasaka K., Schlueter M.

Journal of Chemical Engineering of Japan （Journal of Chemical Engineering of Japan） 53 （ 10 ） 577 - 584 2020年10月

ISSN Print ISSN : 0021-9592

© 2020 The Society of Chemical Engineers, Japan Many chemical and biocatalytic reactions are consuming gaseous species like oxygen, provided by the mass transfer across interfaces of multiphase contact apparatuses. For biocatalytic reactions a macroscopic aeration can lead to reduced enzyme activity by foaming and shear forces and for fast chemical reactions in multiphase flows, the mass transfer limitation is often the bottleneck for a process optimization. The present study investigates the use of bubbles with diameters less than 100 µm for aeration of a 3 L lab scale stirred tank reactor. For demineralized water and a solution of glucose and bovine serum albumin (BSA) as biocatalytic model protein solution, two different membrane spargers with a mean pore size of 1 µm and 2 µm are investigated. Determining the influence of the energy input on the hydrodynamics of the system, endoscopic measurements of bubble size distributions are carried out. The mass transfer performance of the two spargers is analyzed by measurements of the oxygen kla value for varying gas flow rates. As a result microbubble aeration shows a significant higher mass transfer performance compared to an open tube aeration saving 60% of the gaseous phase by reaching the same kla values. Besides high specific interfacial areas and long residance times, the Laplace pressure inside the bubble is identified as an enhancing force for mass transfer at microscale.

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加圧容器からのスプレー噴射による酸素ウルトラファインバブル水の製造

山崎京香,　寺坂宏一,　藤岡沙都子

混相流（日本混相流学会） 34 （ 3 ） 436 - 443 2020年09月

研究論文（学術雑誌）, 共著

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Generation and Long-Term Stability of Ultrafine Bubbles in Water

Tanaka S., Terasaka K., Fujioka S.

Chemie-Ingenieur-Technik （Chemie-Ingenieur-Technik） 93 （ 1-2 ） 168 - 179 2020年

ISSN 0009286X

© 2020 Wiley-VCH GmbH This study investigated submicron-sized bubbles, more precisely ultrafine bubbles (UFBs). The number concentration, size, and scattered light intensity of UFBs were measured by particle tracking analysis (PTA). The results showed that storage temperature had a significant effect, whereas the storage containers had little effect on the long-term stability of UFBs. It was found that the second-order aggregation rate equation could predict the stability of UFBs; however, there were some differences from the theory at high storage temperatures. The features of the PTA were also discussed in detail.

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Dissolution and Shrinking of a Single Microbubble in Stationary Liquid with Surfactants

Fujioka S., Mizuno K., Terasaka K.

Chemie-Ingenieur-Technik （Chemie-Ingenieur-Technik） 93 （ 1-2 ） 216 - 222 2020年

ISSN 0009286X

© 2020 Wiley-VCH GmbH For a variety of applications of microbubbles, it is necessary to clarify the dissolution dynamics and the lifetime of a microbubble. Although various models have been proposed, predicting the dissolution rate of a microbubble in a static fluid with a surfactant is still difficult. In this study, dissolution behavior was predicted with taking into account the mass transfer inhibition effect due to a surfactant at the bubble surface. The shrinking behavior of an oxygen microbubble was observed with several surfactants and the experimental results were in good agreement with model predictions.

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Concentration and dilution of ultrafine bubbles in water

Tanaka S., Naruse Y., Terasaka K., Fujioka S.

Colloids and Interfaces （Colloids and Interfaces） 4 （ 4 ） 2020年

Submicron-sized bubbles are now officially called ultrafine bubbles (UFBs) by the international standard. The concentration of UFBs is generally low (<109 particles/mL; <0.001 vol%) compared to other colloidal dispersions. To overcome this practical problem, we concentrated UFBs in ultrapure water prepared by a commercial UFB generator and quantified the effect of rotary evaporation of the dispersion media on the stability of UFBs. The UFB dispersions were characterized by a particle tracking analysis (PTA) instrument. The experimental results showed that the UFBs can be diluted and concentrated without changing the size distribution and there was little or no loss of UFBs. By using a rotary evaporator, UFB dispersions were about 30-fold concentrated and the resultant number concentration reached over 3 × 1010 particles/mL. Increasing the concentration of UFBs allowed for satisfactory dynamic light scattering (DLS) measurements. The differences among the three algorithms for analyzing the raw data, i.e., autocorrelation function, obtained by DLS are discussed, along with the characteristics of the particle size distribution derived from each algorithm.

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Fine Bubble-based CO<inf>2</inf> Capture Mediated by Triethanolamine Coupled to Whole Cell Biotransformation

Ohde D., Thomas B., Matthes S., Percin Z., Engelmann C., Bubenheim P., Terasaka K., Schlüter M., Liese A.

Chemie-Ingenieur-Technik （Chemie-Ingenieur-Technik） 91 （ 12 ） 1822 - 1826 2019年12月

ISSN 0009286X

© 2019 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Carbon capture technology can be set up in combination with biocatalysis to utilize the bound CO2 as substrate in the Kolbe-Schmitt like enzymatic reaction. The exemplary whole cell biotransformation of catechol to 2,3-dihydroxybenzoic acid in a triethanolamine-mediated multiphase system shows increased equilibrium conversion. Apart from the beneficial thermodynamics, the inherent fluid properties of triethanolamine is enabling easy application of CO2 fine bubbles as highly efficient gassing method to minimize the CO2 demand and CO2 emissions.

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Absorption of carbon dioxide at high temperature with molten alkali carbonate using bubble column reactor

金井由悟, 寺坂宏一, 藤岡沙都子, 福永健一郎

Journal of Chemical Engineering of Japan （Journal of Chemical Engineering of Japan） 52 （ 1 ） 31 - 40 2019年

研究論文（学術雑誌）, 共著, 査読有り, ISSN 00219592

© 2019 The Society of Chemical Engineers, Japan The purpose of this study is to examine the possibility of establishing a novel CO 2 absorption process with molten alkali carbonate using a bubble column reactor. In our previous study, a hot CO 2 recovery process using Li 4 SiO 4 suspended in molten Li 2 CO 3 -K 2 CO 3 was developed. In the process, molten alkali carbonate itself showed great potential for CO 2 absorption at high temperature. If a hot CO 2 absorption process were established using only molten alkali carbonate, it could make the system simpler and the operating temperature range could be extended without the limitation of reaction temperature of solid absorbent. In the study, molten Li 2 CO 3 , Na 2 CO 3 , K 2 CO 3 and its eutectic mixture were selected as CO 2 absorbent. A bubble column was chosen as the device for gas absorption at high temperature. First, the CO 2 absorption performance of each single molten alkali carbonate was investigated. The result showed that the molten Li 2 CO 3 had a great ability to absorb CO 2 at high temperature. Li 2 O was thought to be produced by decomposition of Li 2 CO 3 during the melting and purging process and a reaction of CO 2 with Li 2 O occurred during the absorption process. Further, the CO 2 absorption performance of eutectic mixture increased exponentially with increasing the ratio of Li 2 CO 3 in composition. Second, the possibility of establishing a CO 2 absorption process using molten Li 2 CO 3 was examined. The overall CO 2 absorption process in the bubble column was investigated and the experimental results showed that the mass transfer of CO 2 into molten Li 2 CO 3 was the rate-controlling step. The operational conditions of the bubble column were optimized. The superficial gas velocity was an important operational parameter that affected both the CO 2 absorption rate and total amount of CO 2 finally absorbed in the bubble column. The operating temperature also greatly affected the amount of absorbed CO 2 .

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Fine bubble based CO2 capture mediated by triethanolamine coupled to whole cell biotransformation

Andreas Liese, Michael Schlueter, Koichi Terasaka

Chemie Ingenieur Technik 2019年

研究論文（学術雑誌）, 共著

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Synthesis, kinetic study, and reaction mechanism of Li<inf>4</inf>SiO<inf>4</inf> with CO<inf>2</inf> in a slurry bubble column reactor

Kanai Y., Terasaka K., Fujioka S.

Chemical Engineering Communications （Chemical Engineering Communications） 207 （ 5 ） 598 - 611 2019年

ISSN 00986445

© 2019, © 2019 Taylor & Francis Group, LLC. This study was performed to investigate the synthesis, kinetic and reaction mechanism of Li 4 SiO 4 with CO 2 in a slurry bubble column reactor. The Li 4 SiO 4 powder sample was prepared via a solid-state reaction. The sample was characterized via X-ray diffraction (XRD) analysis and verified as a single phase. The median diameter of the sample was measured using the laser diffraction and scattering method as about 20 μm. The synthesized sample was suspended in binary molten carbonate of Li 2 CO 3 –K 2 CO 3 having a molar ratio of 38:62. The experimental results show that Li 4 SiO 4 in the slurry bubble column absorbed approximately a stoichiometric amount of CO 2 . The kinetic study shows that the CO 2 reaction behavior on the Li 4 SiO 4 surface was fitted to a double exponential model and the limiting step of the reaction was lithium diffusion. The mass transfer coefficient of CO 2 and rate constant of reaction with Li 4 SiO 4 were studied to understand the overall absorption mechanism in the reactor. The resistance for the direct reaction of CO 2 on the Li 4 SiO 4 was much smaller than the resistance for the mass transfer of CO 2 to the Li 4 SiO 4 . We can conclude that the direct contact of CO 2 with Li 4 SiO 4 was the main path for the reaction.

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Mass transfer from freely rising microbubbles in aqueous solutions of surfactant or salt

Tanaka S., Kastens S., Fujioka S., Schlüter M., Terasaka K.

Chemical Engineering Journal （Chemical Engineering Journal） 387 2019年

ISSN 13858947

© 2019 Elsevier B.V. Microbubbles are used in many applications. One of the major advantages of using microbubbles is to improve the mass transfer of gases to the bulk phase. In this study, mass transfer from single microbubbles that rise in ultrapure water and aqueous solutions of surfactants (SDS, Pluronic F68) or salt (NaCl) was investigated. The rising and dissolution behaviors of single air microbubbles were observed using a high-speed imaging technique by which the rising velocity, U B , and the mass transfer coefficient, k L , were optically evaluated. We found that the rising velocity of microbubbles obeys Stokes’ law, indicating that the surface of the microbubbles used in this study is immobile, despite their rising in ultrapure water. The obtained mass transfer coefficients were in good agreement with those predicted by Ranz and Marshall's correlation for the Sherwood number, Sh. Using the two correlations for U B and Sh, a theoretical model that describes the mass transfer from a microbubble was constructed. The proposed model can predict the dissolution of single microbubbles rising in ultrapure water and aqueous solutions with an accuracy of ±10% in terms of dissolution time.

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ファインバブルテクノロジーの発展と展望

寺坂宏一

粉体技術（一般社団法人日本粉体工業技術協会） 10 （ 11 ） 44 - 48 2018年11月

研究論文（学術雑誌）, 単著, ISSN 1883-3292

ファインバブルを用いた洗浄・浄化に関する研究

#H秦隆志, 西内悠祐,　田中克也,　岡本祐里子,　榊原靖,　寺坂宏一

混相流（日本混相流学会） 32 （ 1 ） 4 - 11 2018年

研究論文（学術雑誌）, 共著

超音波刺激によるウルトラファインバブルからマイクロバブルへの変化

寺坂宏一

日本ソノケミストリー 11 （ 1 ） 1 - 8 2017年03月

The Establishment of Experimental Method to Observe Bubble Formation in High Temperature Molten Salt System and Estimation of Generated Bubble Size

Y. Kanai, K. Terasaka, S. Fujioka and K. Suzukawa J. Chem. Eng. Japan, Vol.50(2), pp.86-93 (2017)

J. Chem. Eng. Japan （J. Chem. Eng. Japan） 50 （ 2 ） 86 - 93 2017年02月

研究論文（学術雑誌）, 共著, ISSN 0021-9592

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水平摺動するノズルからの微細気泡生成

村上大次郎寺坂宏一,　藤岡沙都子

混相流（日本混相流学会） 31 （ 4 ） 422 - 426 2017年

研究論文（学術雑誌）, 共著

水中を収縮しつつ浮上する単一マイクロバブルからの物質移動

岩切扶樹寺坂宏一,　藤岡沙都子,　シュルーター　ミヒャエル,　カステンス　スヴェン,　田中俊也

混相流（日本混相流学会） 30 （ 5 ） 529 - 535 2017年

研究論文（学術雑誌）, 共著

ファインバブルの現状と将来展望

寺坂宏一

混相流（日本混相流学会） 30 （ 1 ） 1 - 2 2016年03月

研究論文（学術雑誌）, 単著

Chemical Conversion and Liquid-Liquid Extraction of 5-Hydroxymethylfurfural Fructose by Slug Flow Microreactor

島内寿徳, 藤岡沙都子, 片岡良孝, 谷藤達哉, 寺坂宏一

AlChE Journal （American Institute of Chemical Engineers） 2016年01月

共著

Access to Document (DOI)

Estimation of total oxygen transfer into aeration tank

柴田一栄,　寺坂宏一,　藤岡沙都子,　加藤薫

Journal of Chemical Engineering of Japan 49 （ 7 ） 588 - 594 2016年

共著

Oxygen transfer from a free surface and dispersed bubbles in an aeration tank

柴田一栄,　寺坂宏一,　藤岡沙都子,　加藤薫

Journal of Chemical Engineering of Japan 2016年

共著

食用油精製プロセスへのマイクロバブル技術の応用

寺坂宏一

杉山産業化学研究所年報（一般財団法人　杉山産業化学研究所） 0914 （ 4455 ） 62 - 65 2015年10月

研究論文（大学，研究機関等紀要）, 共著

ファインバブルの創り方と使い方

寺坂宏一

第5回CSJ化学フェスタ2015　プログラム集（日本化学会） 244 - 244 2015年10月

研究論文（学術雑誌）, 単著

マイクロバブルを用いた汚泥廃水処理

寺坂宏一

化学工学（化学工学会） 78 （ 9 ） 600 - 603 2014年09月

研究論文（学術雑誌）, 共著

ファインバブル技術のトレンドと課題

寺坂宏一

化学工学　78巻　9号（化学工学会） 78 （ 9 ） 580 - 584 2014年09月

研究論文（学術雑誌）, ISSN 0375-9253

第5回ファインバブル技術講習会報告

寺坂宏一

混相流（日本混相流学会） 27 （ 5 ） 110 - 113 2014年03月

Water / Methyl isobutyl ketone (MIBK) Biphasic System in Slug Flow under High Temperature and Pressure Conditions

T. Shimanouchi, T. Tanifuji, S. Fujioka, K. Terasaka and Y. Kimura

Solvent Extraction Research and Development Japan （Solvent Extraction Research and Development） 21 （ 2 ） 201 - 209 2014年02月

研究論文（学術雑誌）, 共著

Mass transfer in molten salt and suspended molten salt in bubble column

金井由悟, 福永健一郎, 寺坂宏一, 藤岡沙都子

Chemical Engineering Science 100 153–159 2013年08月

研究論文（学術雑誌）, 共著, 査読有り

ファインバブルの基礎と応用および研究課題

寺坂宏一

粉体技術（一般社団法人日本紛体工業技術協会） 5 （ 8 ） 38(722) - 43(727) 2013年08月

単著

ファインバブルを利用した水中資源回収および洗浄

寺坂宏一

GSCN　ニューズレター（Green & Sustainable Chemistry Network） 47 2013年04月

ナノバブル・マイクロバブルを信頼性のある技術にするために必要なことは？

寺坂宏一

川崎産学連携ニュースレター（川崎市産業振興財団　新産業振興課） 33 2013年03月

研究論文（その他学術会議資料等）, 単著

超音波によるマイクロバブルの凝集と再分散

小林大祐、寺坂宏一

日本音響学会誌 69 （ 11 ） 597 - 602 2013年

Oxygen Transfer into Xanthan Solutions in Partitioned Bubble Columns

寺坂宏一, 新田純也, 福田央, 岩橋美沙, 五島崇, 藤岡沙都子

Journal of Chemical Engineering of Japan 46 （ 1 ） 33-39 2013年

研究論文（学術雑誌）, 共著, 査読有り

Mass Transfer in Molten Salt and Suspended Molten Salt in Bubble Column

金井由悟, 福永健一郎, 寺坂宏一, 藤岡沙都子

Chemical Engineering Science 2012年11月

研究論文（学術雑誌）, 共著, 査読有り

Development of Multislit Submilli-Bubble Distributor for Gas Absorption

藤岡沙都子;　兼子久美;　寺坂宏一;　笹田義人;　五島崇;　小林大祐

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 45 （ 9 ） 691 - 695 2012年09月

共著

気泡・液滴・微粒子分散工学分科会の紹介と最近の活動

寺坂宏一

化学工学（化学工学会） 76 （ 6 ） 308-311 2012年06月

研究論文（学術雑誌）, 単著

第3回ナノバブル・マイクロバブル技術講習会報告

寺坂宏一

混相流 26 （ 1 ） 85-89 2012年03月

研究論文（研究会，シンポジウム資料等）, 単著

（総説）マイクロバブル・ナノバブルの食品・農業分野への応用、特集マイクロバブル・ナノバブルの最新動向

寺坂宏一

月刊ファインケミカル（シーエムシー出版） 41 （ 2 ） 5-6 2012年01月

研究論文（学術雑誌）, 単著

Gas and Liquid Two-phase Flow Injected Directly into Vertical Mini-channel

五島崇, 寺坂宏一, 藤岡沙都子

Journal of Chemical Engineering of Japan, Special Issue for Multiscale Multiphase Process Engineering (MMPE) 2011 45 （ 9 ） 696-702 2012年

研究論文（学術雑誌）, 共著, 査読有り

Development of Multi-slit Type Submilli-bubble Distributor for Gas Absorption

藤岡沙都子, 兼子久美, 寺坂宏一,笹田義人, 五島崇, 小林大祐

Journal of Chemical Engineering of Japan 45 （ 9 ） 691-695 2012年

研究論文（学術雑誌）, 共著, 査読有り

Development of Slurry Bubble Column with Lithium Silicate to Recover Hot CO2 Gas from Flue Gas

金井由悟,寺坂宏一, 諏訪部巨斗, 藤岡沙都子, 小林大祐

Journal of Chemical Engineering of Japan 45 （ 9 ） 639-644 2012年

研究論文（学術雑誌）, 共著, 査読有り

シリーズ＜新しい化学工学＞①流体移動解析,「３　混相流」

寺坂宏一

シリーズ＜新しい化学工学＞① （朝倉書店） 71-74 2011年11月

研究論文（学術雑誌）, 単著

溶融塩スラリーを用いた燃焼ガスからの高温二酸化炭素分離回収

寺坂宏一,金井由悟

ENEOS Technical Review （JX日鉱日石エネルギー株式会社） 53 （ 3 ） 6-10 2011年10月

研究論文（学術雑誌）, 共著

Agglomeration and Coalescence Behavior of Microbubbles under Ultrasonic Irradiation

小林大祐; 林田喜行; 佐野一樹;寺坂宏一

Ultrasonics Sonochemistry 18 （ 5 ） 1193 - 1196 2011年09月

共著

Effect of Irradiation Distance on Degradation of Phenol Using Indirect Ultrasonic Irradiation Method

小林大祐、佐野一樹、武内佑介、寺坂宏一

ULTRASONICS SONOCHEMISTRY 18 （ 5 ） 1205-1210 2011年09月

研究論文（学術雑誌）, 共著, 査読有り

Agglomeration and Rapid Ascent of Microbubbles by Ultrasonic Irradiation

小林大祐、林田喜行、佐野一樹、寺坂宏一

ULTRASONICS SONOCHEMISTRY 18 （ 5 ） 1193-1196 2011年09月

研究論文（学術雑誌）, 共著, 査読有り

超音波照射によるマイクロバブルの凝集・合一挙動

小林大祐，林田喜行，寺坂宏一

化学工学論文集 37 （ 4 ） 291-295 2011年07月

研究論文（学術雑誌）, 共著, 査読有り

Development of microbubble aerator for waste water treatment using aerobic activated sludge

寺坂宏一, 平林藍, 西野貴則 ,藤岡沙都子, 小林大祐

Chemical Engineering Science 66 （ 14 ） 3172-3179 2011年06月

研究論文（学術雑誌）, 単著

Submilli-bubble dispersion from a slit orifice into water

寺坂宏一, 笹田義人, 小林大祐, 藤岡沙都子

Journal of Chemical Engineering of Japan 44 （ 3 ） 140-145 2011年03月

研究論文（学術雑誌）, 共著

Agglomeration and Coalescence Behavior of Microbubbles under Ultrasonic Irradiation

小林大祐;林田喜行;寺坂宏一

KAGAKU KOGAKU RONBUNSHU 37 （ 4 ） 291 - 295 2011年

共著

多岐にわたる分野へのマイクロバブル応用技術

寺坂宏一

オレオサイエンス（日本油化学会） 10 （ 9 ） 323-328 2010年09月

研究論文（学術雑誌）, 単著

HOT CO2 RECOVERY USING LITHIUM SILICATE SUSPENDED IN MOLTEN SALT

尾崎裕太，金井由悟，寺坂宏一，小林大祐

Journal of Chemical Engineering of Japan 43 （ 7 ） 546-552 2010年07月

研究論文（学術雑誌）, 共著, 査読有り

実用化を目指した大学での研究

寺坂宏一

分離技術（分離技術会） 40 （ 3 ） 146-150 2010年05月

研究論文（学術雑誌）, 単著

積層スリット型サブミリバブル分散器の開発

兼子久美、寺坂　宏一、小林大祐

化学工学シンポジウムシリーズ８１ 21-28 2010年01月

研究論文（学術雑誌）, 共著, 査読有り

超音波照射によるマイクロバブルの動的挙動

小林大祐, 林田　喜行, 寺坂　宏一

化学工学シンポジウムシリーズ８１ 13-19 2010年01月

研究論文（研究会，シンポジウム資料等）, 共著, 査読有り

スラリー気泡塔を用いたリチウムフェライトによる高温CO2ガス吸収

稲沢秀明、尾崎裕太、寺坂宏一、小林大祐, 金井由悟

化学工学シンポジウムシリーズ81 1-6 2010年01月

研究論文（研究会，シンポジウム資料等）, 共著, 査読有り

超音波によるマイクロバブル群の凝集・再分散を利用した浮上分離プロセス

寺坂宏一

月刊マテリアルインテグレーション（ティー・アイ・シー） 22 （ 6 ） 2-11 2009年05月

研究論文（学術雑誌）, 単著

混合蒸気の直接接触凝縮を用いたマイクロバブル生成

寺坂宏一・斎藤淳平・戸田佑・小林大祐

混相流研究の進展（日本混相流学会） 4 87-93 2009年03月

研究論文（学術雑誌）, 共著, 査読有り

混合蒸気の直接接触凝縮を用いたマイクロバブル生成

寺坂宏一，斎藤淳平，戸田佑，小林大祐

混相流研究の進展 4 87-93 2009年03月

研究論文（学術雑誌）, 共著, 査読有り

マイクロバブル浮上分離による酸化鉄微粒子の除去

寺坂宏一，青木　駿, 小林　大祐

混相流研究の進展（日本混相流学会） 3 43-50 2008年06月

研究論文（学術雑誌）, 単著, 査読有り

Slug Bubble Formation in Co-flowing Liquid in Capillary Tube

五島崇, 寺坂宏一

Journal of Chemical Engineering of Japan （Sciety of Chemical Engineers, Japan） 40 （ 11 ） 913-919 2007年11月

研究論文（学術雑誌）, 共著, 査読有り

Simultaneous Measurements of Gas-Solid Flow Rates and Pressure　Drop in Downcomer of J-Valve in CFB

五島崇, 寺坂宏一

Chemical Engineering and Biochemical Engineering Quarterly Journal （Croatian Society of Chemical Engineers） 21 （ 4 ） 357-363 2007年11月

研究論文（学術雑誌）, 共著, 査読有り

Simultaneous Measurements of Gas-Solid Flow Rates and Pressure Drop in Downcomer of J-Valve in CFB

五島　崇,　寺坂宏一

Chemical and Biochemical Engineering Quarterly 21 （ 4 ） 357 - 363 2007年10月

共著

Tribological Action and Cutting Performance of MQL Media in Machining of Aluminum

T. Wakabayashi, S. Suda, I. Inasaki, K. Terasaka, Y. Musha and Y. Toda

Annals of the CIRP （CIRP） 56 （ 1 ） 97-100 2007年05月

研究論文（学術雑誌）, 共著, 査読有り

マイクロバブルを用いた水相中懸濁微粒子の浮上分離

寺坂宏一，新保康行

混相流（日本混相流学会） 21 （ 1 ） 77-83 2007年03月

研究論文（学術雑誌）, 単著, 査読有り

マイクロバブル発生法と工業装置への適用

寺坂宏一

化学工学（化学工学会） 71 （ 3 ） 170-173 2007年03月

研究論文（学術雑誌）, 単著

Tribological Action and Cutting Performance of MQL Media in Machining of Aluminum

T. Wakabayashi1, S. Suda, I. Inasaki, K. Terasaka, Y. Musha, Y. Toda3

CIRP Annals - Manufacturing Technology 56 （ 1 ） 97 - 100 2007年

共著

Slug bubble formation in a co-flowing liquid in a capillary tube

五島　崇;　寺坂宏一

Journal of Chemical Engineering of Japan 40 （ 11 ） 913 - 919 2007年

共著

Absorption and Stripping of CO2 with a Molten Salt Slurry in a Bubble Column at High Temperature

寺坂宏一

Chemical Engineering & Technology 29 （ 9 ） 1118 - 1121 2006年09月

共著

7ｔh German/Japanese Symposium on Bubble Columns(第7回独日気泡塔シンポジウム）に参加して

寺坂宏一

化学工学（化学工学会） 70 （ 9 ） 2006年08月

研究論文（学術雑誌）, 単著

Fabrication of High Performance Polymeric Microfluidic Device by a Simple Imprinting Method Using a Photosensitive Sheet

寺坂宏一

Japanese Journal of Applied Physics 45 （ 2 ） L64-L67 2006年01月

研究論文（学術雑誌）, 共著, 査読有り

Absorption and Stripping of CO2 with Molten Salt Slurry in Bubble Column at High Temperature

寺坂宏一, 須山有希子 , 中川和明, 加藤雅礼

Chemical Engineering and Technology 29 （ 9 ） 1118-1121 2006年

研究論文（学術雑誌）, 共著

高温CO2吸収材リチウムフェライトのCO2吸収特性

加藤雅礼・越崎健司・中川和明・須山有希子・寺坂宏一

日本セラミックス協会学術論文誌 113 （ 1322 ） 684-686 2005年10月

研究論文（学術雑誌）, 共著, 査読有り

An advanced oscillation mixing method for improving the cooling uniformity in quenching

寺坂宏一

Transactions of Materials and Heat Treatment 25 （ 5 ） 475-479 2004年10月

研究論文（学術雑誌）, 単著, 査読有り

Simultaneous measurement of 3-dimensional shape and behavior of single bubble in liquid using laser sensors

寺坂宏一, 柿崎美陶, 井上陽介, 丹羽瑞穂

Journal of Chemical Engineering of Japan （Society of Chemical Engineers, Japan） 37 （ xx ） 921-926 2004年10月

研究論文（学術雑誌）, 共著, 査読有り

Liquid circulation and mass transfer in external-loop airlift reactor with partitioning plates

寺坂宏一

Journal of Chemical Engineering of Japan （Society of Chemical Engineers, Japan） 37 （ 8 ） 941-946 2004年10月

研究論文（学術雑誌）, 共著, 査読有り

Liquid circulation and mass transfer in an external-loop airlift reactor with partitioning plates

Hideki Tsuge, Satoru Otatsume, Ken Kobayasi, Koichi Terasaka, Hirotsugu Kobayashi

Journal of Chemical Engineering of Japan 37 （ 8 ） 941 - 946 2004年

共著

Special issue for new frontier in bubble-column research-Evolving from the 6th Japanese/German Symposium on Bubble Columns-Preface

河越　幹男,　土屋　活美,　寺坂　宏一,　多田　豊

Journal of Chemical Engineering of Japan 37 （ 8 ） 2004年

共著

Bubble Distribution in Shear Flow of Highly Viscous Liquids

寺坂宏一, 村田　紗矢子, 堤野香

Canadian Journal of Chemical Engineering 81 470-475 2003年08月

研究論文（学術雑誌）, 共著, 査読有り

Oxygen Transfer in Viscous Non-Newtonian Liquids Having Yield Stress in Bubble Columns Operated under Slug Flow Condition

寺坂宏一

Chemical Engineering Science 58 （ xx ） 5331-5337 2003年

研究論文（学術雑誌）, 共著, 査読有り

Gas holdup for slug bubble flow of iscous liquids having a yield stress in bubble columns

寺坂宏一 and 柘植秀樹

Chemical Engineering Science 58 513-517 2003年

研究論文（学術雑誌）, 単著, 査読有り

Mass Transfer in high-pressure bubble columns with organic liquids

Uwe Jordan, KOICHI TERASAKA,Gautam Kundu, Adrian Schumpe

Chemical Engineering & Technology 25 （ 3 ） 262-265 2002年

研究論文（学術雑誌）, 共著, 査読有り

Development of a J-shaped pneumatic valve to control the solid particle circulation rate in a circulating fluidized bed

寺坂宏一

Powder Technology 126 （ 1 ） 13-21 2002年

研究論文（学術雑誌）, 単著, 査読有り

Ammonia absorption from a bubble expanding at a submerged orifice into water

KOICHI TERASAKA, Junko OKA and Hideki TSUGE

Chemical Engineering Science 57 3757-3765 2002年

研究論文（学術雑誌）, 単著, 査読有り

ドラフトチューブ付気泡塔内で強制循環される高粘度液中への物質移動

寺坂宏一, 柘植秀樹

化学工学論文集 27 （ 4 ） 443-448 2001年

研究論文（学術雑誌）, 共著, 査読有り

Bubble Formation from a Nozzle Submerged in Viscous Liquids Having Yield Stress

寺坂宏一, 柘植秀樹

Chemical Engineering Science 56 3237-3245 2001年

研究論文（学術雑誌）, 共著, 査読有り

Stoffubergang in Druckblasensaulen mit organischen Flussigkeiten

Uwe Jordan, KOICHI TERASAKA,Gautam Kundu, Adrian Schumpe

Chemie- Ingenieur-Technik 73 （ 8 ） 982-985 2001年

研究論文（学術雑誌）, 共著, 査読有り

Effect of Operating Conditions on Two-phase Bubble Formation Behavior at Single Nozzle Submerged in Water

ティルトプラコソ・寺坂宏一・柘植秀樹

Journal of Chemical Engineering of Japan 34 （ 2 ） 114-120 2001年

研究論文（学術雑誌）, 共著, 査読有り

第５回日独気泡塔シンポジウムに参加して

寺坂宏一

化学工学 64 （ 11 ） 50 2000年

研究論文（学術雑誌）, 単著

Two-Phase Bubble Formation with Condensation at Nozzle Submerged in Immiscible Liquid

寺坂宏一・ティルトプラコソ・孫万泳・柘植秀樹

Journal of Chemical Engineering of Japan 33 （ 1 ） 113-119 2000年

研究論文（学術雑誌）, 共著, 査読有り

Centrifugal Gas-Liquid Separation under Low Gravity Conditions

安玄洙・田中航介・柘植秀樹・寺坂宏一・塚田久美子

Separation and Purification Technology 19 121-129 2000年

研究論文（学術雑誌）, 共著, 査読有り

沿岸海域の漁業資源を予測する

寺坂宏一

化学工学 63 （ 1 ） 52－53 1999年

研究論文（学術雑誌）, 単著

Bubble Formation in Cocurrently Upward flowing Liquid

寺坂宏一・松栄宏和・柘植秀樹

Canadian Journal of Chemical Engineering 77 （ 3 ） 458-464 1999年

研究論文（学術雑誌）, 共著, 査読有り

Measurement of Heat Transfer Coefficient for Direct-Contact Condensation during Bubble Growth in Liquid

寺坂宏一・孫万泳・ティルトプラコソ・柘植秀樹

Journal of Chemical Engineering of Japan 32 （ 5 ） 594-599 1999年

研究論文（学術雑誌）, 共著, 査読有り

SO2 Bubble Formation at an Orifice Submerged in Water

寺坂宏一・稗田由紀子・柘植秀樹

Journal of Chemical Engineering of Japan 32 （ 4 ） 72-479 1999年

研究論文（学術雑誌）, 共著, 査読有り

海洋への鉄分施肥による植物プランクトンの増殖

寺坂宏一

化学工学 62 （ 1 ） 53 1998年01月

研究論文（学術雑誌）, 単著

Behavior of bubble formation at elevated pressure

Dong-Hyun YOO, Koichi TERASAKAand Hideki TSUGE

Journal of Chemical Engineering of Japan 31 （ 1 ） 76-82 1998年

研究論文（学術雑誌）, 共著, 査読有り

Mass Transfer in Bubble Columns Studied with an Oxygen Optode

Koichi TERASAKA, Dirk HULLMANN and Adrian SCHUMPE

Chemical Engineering Scienc 53 （ 1 ） 3181-3184 1998年

研究論文（学術雑誌）, 単著, 査読有り

Bubble Formation in Quiescent Liquids under Low Gravity Conditions

Hideki TSUGE, Kosuke TANAKA and Koichi TERASAKA

Journal of Japan Society of Microgravity Application 15 （ II ） 214-219 1998年

研究論文（学術雑誌）, 単著, 査読有り

Bubble formation in flowing liquid under reduced gravity

Hideki TSUGE, Yuko TANAKA, Koichi TERASAKA and Hirokazu MATSUE

Chemical Engieering Science 52 （ 21/22 ） 3671-3676 1997年12月

研究論文（学術雑誌）, 共著, 査読有り

Behavior of bubble formation in suspended solution for an elevated pressure system

Dong-Hyun YOO, Hideki TSUGE, Koichi TERASAKA and Kensaku MIZUTANI

Chemical Engineering Science 52 （ 21/22 ） 3701-3707 1997年12月

研究論文（学術雑誌）, 共著, 査読有り

Bubble formation at orifice in viscoelastic liquids

寺坂宏一, 柘植秀樹

AIChE Journal 43 （ 11 ） 2903-2910 1997年11月

研究論文（学術雑誌）, 共著, 査読有り

Bubble formation at submerged nozzles for small gas flow rate under low gravity

柘植秀樹, 寺坂宏一, 越田渉, 松栄宏和

Chemical Engineering Science 52 （ 20 ） 3415-3420 1997年10月

研究論文（学術雑誌）, 共著, 査読有り

塔型フォトバイオリアクター開発に関する研究

寺坂宏一

RITE NOW Vol.21 1996年11月

研究論文（大学，研究機関等紀要）, 単著

国内研究者海外派遣事業研究成果報告書

寺坂宏一

平成7年度調査報告書・地球環境産業技術開発推進事業国際研究交流事業 1996年03月

研究論文（大学，研究機関等紀要）, 単著

高圧気泡塔での気泡生成シミュレーション

柘植秀樹、柳東鉉，寺坂宏一

ケミカルエンジニアリング 40 （ 12 ） 1995年11月

研究論文（学術雑誌）, 共著

炭酸マグネシウム及び炭酸カルシウム結晶の最適結晶析出のための反応晶析法

柘植秀樹，寺坂宏一

海水中のCaおよびMgイオンを利用した大量CO泡の処理に関する化学工学面の調査 1995年03月

研究論文（その他学術会議資料等）, 共著

Mass transfer in Multistage Slurry bubble column:Analysis by back flow model

hideki Tsuge,Yamada，T.,KOICHI TERASAKA, Miyakawa，S.

Chemical Engineering Research and Design， 73 （ A6 ） 669-675 1995年

研究論文（学術雑誌）, 共著, 査読有り

炭酸カルシウムの大粒径結晶を析出させる反応晶析方法

柘植秀樹，寺坂宏一

大量CO2の海水中のCaイオンによる処理に関する化学工学面の調査 1994年03月

研究論文（その他学術会議資料等）, 共著

MF，UF膜のファウリングのメカニズムと対策に関する調査及び実験

柘植秀樹，寺坂宏一，青葉一樹，永井聡，続学，晝間充久

生物分離工学特別研究会研究実施ワーキンググループ成果報告書 1994年

研究論文（その他学術会議資料等）, 共著

海洋汚染はじめ水域汚染の防止技術に関する化学工学面からの調査

地球環境保全のための化学工学的対策技術に関する調査 1993年03月

研究論文（その他学術会議資料等）, 単著

最新の高効率・環境汚染防止型の浚渫技術

寺坂宏一

化学工学 58 （ 3 ） 70 1993年

研究論文（学術雑誌）, 単著

Bubble formation under constant-flow conditions

寺坂宏一, 柘植秀樹

Chemical Engineering Science 48 3417-3422 1993年

研究論文（学術雑誌）, 共著, 査読有り

BEHAVIOR OF BUBBLES FORMED FROM A SUBMERGED ORIFICE UNDER HIGH SYSTEM PRESSURE

柘植秀樹，中島義人，寺坂宏一

Chemical Engineering Science 47 3273-3280 1992年08月

研究論文（学術雑誌）, 共著, 査読有り

Bubble Formation at an Orifice in Liquid under Highly Pressurized Conditions

寺坂宏一, 柘植秀樹

International Journal of Engineering Fluid Mechanics 5 （ 4 ） 439-457 1992年

研究論文（学術雑誌）, 共著, 査読有り

MASS TRANSFER IN HIGHLY VISCOUS LIQUIDS IN BUBBLE COLUMN WITH CONSTANT FLOW NOZZLES

寺坂宏一, 柘植秀樹

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 24 （ 4 ） 424-429 1991年

研究論文（学術雑誌）, 共著, 査読有り

BUBBLE FORMATION AT A SINGLE ORIFICE IN NON-NEWTONIAN LIQUIDS

寺坂宏一, 柘植秀樹

CHEMICAL ENGINEERING SCIENCE 46 （ 1 ） 85-93 1991年

研究論文（学術雑誌）, 共著, 査読有り

BUBBLE FORMATION AT A SINGLE ORIFICE IN HIGHLY VISCOUS LIQUIDS

寺坂宏一, 柘植秀樹

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 23 （ 2 ） 160-165 1990年

研究論文（学術雑誌）, 共著, 査読有り

VOLUME OF BUBBLES FORMED FROM AN ORIFICE SUBMERGED IN HIGHLY VISCOUS NEWTONIAN AND NON-NEWTONIAN LIQUIDS

柘植秀樹, 寺坂宏一

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 22 （ 4 ） 418-421 1989年

研究論文（学術雑誌）, 共著, 査読有り

高粘度液中での単一孔よりの気泡生成

柘植秀樹, 寺坂宏一, 戸沢一宏, 日比野眞一

化学工学論文集 13 （ 6 ） 857-860 1987年05月

研究論文（学術雑誌）, 共著, 査読有り

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