Seamless scale-up of tube-in-tube millireactors by annular structure and feed method design: Micromixing, residence time distribution and heat transfer

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2024-12-06 DOI:10.1002/aic.18695

Hanyang Liu, Ning Yang, Junan Jiang, Zundong Xiao, Chenfeng Wang, Beili Lu, Rijie Wang, Lirong Tang

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引用次数: 0

Abstract

Flow chemistry is widely valued for its enhanced transport properties and safety, but scaling up while maintaining the advantages of the microenvironment in small-scale systems remains challenging. We addressed this by developing a novel tube-in-tube millireactor with a multi-hole jet inlet and deflectors, designed to maintain consistent flow regimes and optimize micromixing, residence time distribution (RTD), and heat transfer at various scales. The reactor increases flux by enlarging tube diameters and incorporating micro-holes and deflectors, all while maintaining a constant annular space. This design, validated through both CFD modeling and experimental results, maintains consistent fluid flow and excellent transfer properties, achieving micromixing time below 2 ms at Re_h > 2000, a plug-flow-like RTD profile, and a heat transfer capacity up to 12.4 times greater than conventional designs. This study presents a simple, scalable approach to millireactor design, combining “number-up” and “size-up” strategies, offering a cost-effective solution for industrial applications.

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.