化工学报2019，Vol.70Issue(7)：2448-2455,8.DOI:10.11949/0438-1157.20190142
微反应器内CO2解吸过程流动行为及气提强化
Flow behavior and stripping enhancement of CO2 desorption process in microreactor
摘要
Abstract
The flow pattern and stripping enhancement of CO2 desorption from N-methyldiethanolamine solution were investigated in microreactor. It is observed that the gas-liquid two-phase flow patterns in the desorption process mainly include bubble flow, slug flow, annular flow and fine circulation. However, the periodic change of flow patterns resulted in the fluctuation of bubble velocity at high temperature. According to the results of stripping enhancement on the CO2 desorption, it showed that CO2 desorption rate was significantly enhanced at low solution rate by adding small amount of inert gas, while excessive gas will lead to a reduction in the solution residence time. The optimal inert gas flow rate was determined by calculating the stripping enhancement per unit gas flow rate.关键词
微反应器/二氧化碳捕集/解吸/N-甲基二乙醇胺/流型/气提Key words
microreactor/CO2 capture/desorption/N-methyldiethanolamine/flow pattern/stripping分类
化学化工引用本文复制引用
LIU Hongchen,ZHOU Feng,YAO Chaoqun,CHEN Guangwen..微反应器内CO2解吸过程流动行为及气提强化[J].化工学报,2019,70(7):2448-2455,8.基金项目
国家自然科学基金项目(U1608221,91634204) （U1608221,91634204）
中国科学院青年创新促进会项目(2017229) （2017229）
科技部重点领域创新团队项目(2016RA4053) （2016RA4053）
