A novel observation platform for determining the micro-dispersion performance in practical reaction systems

Literature Information

Publication Date 2022-07-21
DOI 10.1039/D2RE00224H
Impact Factor 4.239
Authors

Jing Song, Chencan Du, Junjie Wang, Yongjin Cui, Yujun Wang, Jian Deng, Guangsheng Luo


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Abstract

Microreaction technology provides a powerful tool for reactions under extreme conditions, but the micro-dispersion performance of those processes under real reaction conditions is hard to visualize. Therefore, we constructed a novel observation platform by placing the downstream observation window vertically. We successfully achieved the accurate measurement of droplets ranging in size from microns to millimeters for real reaction systems in a T-junction microdevice, and proved that the droplet coalescence can be avoided at the outlet of the microreactor. The actual micro-dispersion state of different types of systems can be exactly reflected in the observation window. We further investigated the effect of shearing routes on the droplet size in toluene nitration by using this platform and provided design guidance on the choice of shearing routes for nitration. The scaling laws under different shearing routes have been established based on the obtained micro-dispersion data in this work. This work has promoted the connection of fundamental research studies with real applications of microreaction technology, which is critical for the future development of microreaction technology.

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Source Journal

Reaction Chemistry & Engineering

Reaction Chemistry & Engineering
CiteScore: 0
Self-citation Rate: 8.8%
Articles per Year: 284

Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.

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