Gas-liquid multiphase computational fluid dynamics (CFD) of amine absorption column with structured-packing for CO2 capture

被引：44

作者：

Kim, Jeongeun ^{[1
]}

Pham, Dung A. ^{[1
]}

Lim, Young-Il ^{[1
]}

机构：

[1] Hankyong Natl Univ, Dept Chem Engn, CoSPE, Jungang Ro 327, Gyeonggi Do 17579, Anseong Si, South Korea

来源：

COMPUTERS & CHEMICAL ENGINEERING | 2016年 / 88卷

基金：

新加坡国家研究基金会;

关键词：

CO2; capture; Amine absorber; Structured-packing; Computational fluid dynamics (CFD); Porous media model; Gas-liquid flows; MASS-TRANSFER; 2-PHASE FLOW; HOLD-UP; MODEL;

D O I：

10.1016/j.compchemeng.2016.02.006

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The gas-liquid multiphase Eulerian computational fluid dynamics (CFD) model was used to investigate hydrodynamics and CO2 removal efficiency of a pilot-scale amine absorber with structured-packing. The structured-packing was represented by a porous media zone having porous resistance, gas-liquid interfacial drag force, and liquid dispersion force. This study aimed to find a reasonable way to identify four modification factors of the Ergun coefficient that determine the hydrodynamic characteristics of structured-packing. The two modification factors (a and b) for porous resistance were mainly related to the liquid holdup (h(L)) with respect to the liquid load. The other two factors (c and d) for gas-liquid interfacial drag force depended on the specific wet pressure drop (Delta P-wet/L) versus the gas load factor. The h(L) and Delta P-wet/L increased in parallel with the increase of a and c, respectively, while the slopes of h(L) and Delta P-wet/L increased with b and d, respectively. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：39 / 49

页数：11

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