Microinterface intensification in hydrogenation and air oxidation processes

doi:10.1016/j.cjche.2022.05.022

Chinese Journal of Chemical Engineering ›› 2022, Vol. 50 ›› Issue (10): 292-300.DOI: 10.1016/j.cjche.2022.05.022

• Catalysis, Kinetics and Reaction Engineering • Previous Articles Next Articles

Microinterface intensification in hydrogenation and air oxidation processes

Hongliang Qian², Hongzhou Tian¹, Guoqiang Yang¹, Gaodong Yang¹, Lei Li¹, Feng Zhang¹, Zheng Zhou¹, Weihua Huang³, Yufu Chen³, Zhibing Zhang¹

1 School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210046, China;
2 Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China;
3 Nanjing Institute of Microinterfacial Reaction Engineering, Nanjing 210008, China

Received:2022-03-18 Revised:2022-05-13 Online:2023-01-04 Published:2022-10-28
Contact: Feng Zhang,E-mail:zf@nju.edu.cn;Zhibing Zhang,E-mail:zbzhang@nju.edu.cn
Supported by:
The authors are grateful to the financial support of National Natural Science Foundation of China (No. 91634104, 21776122 and 22178391), National Key Research & Development Program of China (No. 2018YFB0604605), Jiangsu Science and Technology Plan Project (No. BM2018007).

Microinterface intensification in hydrogenation and air oxidation processes

Hongliang Qian², Hongzhou Tian¹, Guoqiang Yang¹, Gaodong Yang¹, Lei Li¹, Feng Zhang¹, Zheng Zhou¹, Weihua Huang³, Yufu Chen³, Zhibing Zhang¹

1 School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210046, China;
2 Department of Pharmaceutical Engineering, China Pharmaceutical University, Nanjing 211198, China;
3 Nanjing Institute of Microinterfacial Reaction Engineering, Nanjing 210008, China

通讯作者: Feng Zhang,E-mail:zf@nju.edu.cn;Zhibing Zhang,E-mail:zbzhang@nju.edu.cn
基金资助:
The authors are grateful to the financial support of National Natural Science Foundation of China (No. 91634104, 21776122 and 22178391), National Key Research & Development Program of China (No. 2018YFB0604605), Jiangsu Science and Technology Plan Project (No. BM2018007).

Abstract

Abstract: Hydrogenations and air oxidations usually have low apparent reaction rate, generally controlled by mass transfer rate, and widely exist in the modern chemical manufacturing process. The key to increase the mass transfer rate is the reduction of the liquid film resistance 1/k_La. In this work, the original concept of microinterface intensification for mass transfer and then for these reactions has been proposed. We derived the regulation model and set up the mathematical calculation method of micron-scale gas-liquid interface structure on mass transfer and reaction, designed the mechanical energy exchange device that can produce gas-liquid microinterface system on a large scale, and established the OMIS system which is able on line to measure the diameter and distribution of millions of microbubbles, interface area a and mass transfer film thickness δ_M, as well as developed a series of microinterface intensified reactor systems (MIRs) for the applications of hydrogenation and air oxidation processes. It is believed that this research will provide an up-to-date development for the intensification of hydrogenation and air oxidation reactions.

Key words: Hydrogenation and oxidation, Microinterface intensification, Mass transfer coefficient, Structure-effect regulation, Online measurement

摘要： Hydrogenations and air oxidations usually have low apparent reaction rate, generally controlled by mass transfer rate, and widely exist in the modern chemical manufacturing process. The key to increase the mass transfer rate is the reduction of the liquid film resistance 1/k_La. In this work, the original concept of microinterface intensification for mass transfer and then for these reactions has been proposed. We derived the regulation model and set up the mathematical calculation method of micron-scale gas-liquid interface structure on mass transfer and reaction, designed the mechanical energy exchange device that can produce gas-liquid microinterface system on a large scale, and established the OMIS system which is able on line to measure the diameter and distribution of millions of microbubbles, interface area a and mass transfer film thickness δ_M, as well as developed a series of microinterface intensified reactor systems (MIRs) for the applications of hydrogenation and air oxidation processes. It is believed that this research will provide an up-to-date development for the intensification of hydrogenation and air oxidation reactions.

关键词: Hydrogenation and oxidation, Microinterface intensification, Mass transfer coefficient, Structure-effect regulation, Online measurement

Hongliang Qian, Hongzhou Tian, Guoqiang Yang, Gaodong Yang, Lei Li, Feng Zhang, Zheng Zhou, Weihua Huang, Yufu Chen, Zhibing Zhang. Microinterface intensification in hydrogenation and air oxidation processes[J]. Chinese Journal of Chemical Engineering, 2022, 50(10): 292-300.

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Microinterface intensification in hydrogenation and air oxidation processes

Microinterface intensification in hydrogenation and air oxidation processes

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