Study on pilot-scale inline jet flow high shear mixer: Discharge, macro-mixing time, and residence time distribution

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2024-12-26 DOI:10.1016/j.cej.2024.158812

Junbo Wu, Junheng Guo, Yudong Liu, Kangkang Ma, Yingcheng Wang, Wei Li, You Han, Ruan Chi, Bingwen Long, Jinli Zhang

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引用次数: 0

Abstract

High shear mixers with long residence times are essential to intensify finite rate reactions. Therefore, the discharge, residence time distribution (RTD), and macro-mixing time characteristics of a pilot-scale inline jet flow high shear mixer (JFHSM) were systematically investigated. Using experimental and CFD simulation methods, the effects of rotational speed N, feed flow rate QI, feed position, stator bottom opening ratio φ, and rotor angle α were studied. The results show that the inline JFHSM is a perfect mixing reactor, and the effect of QI is weak. The stator’s presence or increased N enhance dispersion and mixing effects. A closer feed position to the mixing head results in better dispersion and a smaller tM. Alterations to the φ and the α result in notable modifications to the flow pattern. tM is smaller at φ ≥ 0.250, with an optimal value at φ = 0.567, and the inline JFHSM has the smallest Po at α = 30° and the lowest tM at α = 90°.Moreover, the correlation equations for FlT, Po, Srave, A, and εave, A provide guidance for optimizing and scaling up inline JFHSM.

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.