Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor–Couette flow reactor with variable configurations of inner cylinder

Liu, Lu; Yang, Xiaogang; Yang, Jie; Li, Guang; Guo, Yanqing

Abstract

Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor–Couette flow (TC) reactor with variable configurations of inner cylinder has been investigated by adoption of a parallel competing iodide-iodate reaction system. Two types of inner cylinder, circular inner cylinder and lobed inner cylinder (CTC and LTC), were used to generate hydrodynamic heterogeneity, focusing on the effects of the Reynolds number, the acid concentration, and the feeding time on the micromixing performance. Segregation index (Xs) was employed to evaluate the micromixing efficiency. It is revealed that Xs decreases with the increase of Reynolds number and feeding time but increases with the increase of acid concentration for both the CTC and LTC. However, the LTC does present a better micromixing performance at various operating conditions than that of the CTC as affirmed by both the experimental and computational fluid dynamics simulation results.

Citation

Liu, L., Yang, X., Yang, J., Li, G., & Guo, Y. (2021). Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor–Couette flow reactor with variable configurations of inner cylinder. AIChE Journal, 67(7), Article e17225. https://doi.org/10.1002/aic.17225

• Journal Article Type: Article
• Acceptance Date: Jan 19, 2021
• Online Publication Date: Feb 2, 2021
• Publication Date: 2021-07
• Deposit Date: Feb 2, 2022
• Publicly Available Date: Feb 4, 2022
• Journal: AIChE Journal
• Print ISSN: 0001-1541
• Electronic ISSN: 1547-5905
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 67
• Issue: 7
• Article Number: e17225
• DOI: https://doi.org/10.1002/aic.17225
• Keywords: Geometry modification; Micromixing efficiency; Micromixing time; Segregation index
• Public URL: https://hull-repository.worktribe.com/output/3920090