Classification and identification of gas-liquid dispersion states in a jet bubbling reactor

被引：17

作者：

Shuai, Yun ^{[1
]}

Zhang, Peng ^{[1
]}

Guo, Xiaoyun ^{[1
]}

Wang, Xinyan ^{[1
]}

Huang, Zhengliang ^{[1
]}

Yang, Yao ^{[1
]}

Sun, Jingyuan ^{[1
]}

Lie, Meng ^{[2
]}

Jiang, Yan ^{[2
]}

Ma, Jiong ^{[2
]}

Wang, Jingdai ^{[3
]}

Yang, Yongrong ^{[3
]}

机构：

[1] Zhejiang Univ, Coll Chem & Biol Engn, Zhejiang Prov Key Lab Adv Chem Engn Manufacture T, Hangzhou 310027, Zhejiang, Peoples R China

[2] Sinopec Nanjing Engn & Construct Inc, Nanjing, Jiangsu, Peoples R China

[3] Zhejiang Univ, Coll Chem & Biol Engn, State Key Lab Chem Engn, Hangzhou, Zhejiang, Peoples R China

来源：

AICHE JOURNAL | 2020年 / 66卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

acoustic emission; fluctuation distribution index; gas-liquid dispersion state; jet bubbling reactor; transition point; VOID FRACTION DISTRIBUTION; FILLED CAVITY STRUCTURES; HOLDUP; VESSEL;

D O I：

10.1002/aic.16778

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Three gas-liquid dispersion states including flooding, loading, and complete dispersion are observed sequentially in a jet bubbling reactor with an increase of the liquid jet velocity at the nozzle outlet (u(j)). The gas-liquid dispersion states are identified through the slope (k) of the curve of fluctuation distribution index (FI) versus u(j) as follows: (a) under the flooding, k = 0; (b) under the loading, k > 0; (c) under the complete dispersion, k < 0. In particular, the u(j) at the transition points from flooding to loading and from loading to complete dispersion are referred to flooding jet velocity (u(jf), the transition point between k = 0 and k > 0) and complete dispersion jet velocity (u(jcd), the transition point from k > 0 to k < 0), respectively. The average relative deviations of the u(j) at the transition points obtained through the acoustic emission measurement and visual observation are less than 5%.

引用

页数：11

共 32 条

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