化工学报2016，Vol.67Issue(7)：2901-2906,6.DOI:10.11949/j.issn.0438-1157.20151821
微通道内二乙醇胺/乙醇溶液吸收 CO2的传质性能
Mass transfer performance of CO2 absorption into DEA/ethanol solution in microchannel
摘要
Abstract
A high-speed camera was used to investigate the mass transfer process of CO2 chemical absorption into diethanolamine (DEA)/ethanol solution in microchannel. The volume evolution of the bubbles in the microchannel was obtained by the image-analysis method. By means of the gas pressure at the inlet and outlet of the microchannel, the average mass transfer coefficient (k) from the contact of two phases to equilibrium was attained. The influences of flow rates of gas and liquid and DEA concentration on the mass transfer coefficient were investigated. The experiment results indicated that k increased with increasing liquid flow rate and DEA concentration. For a given liquid flow rate and DEA concentration, k increased gradually up to a constant value with increasing gas phase flow rate. A correlation for estimating k was proposed and the calculated values by the present model agreed well with the experimental data.关键词
微通道/传质/CO2/二乙醇胺/吸收Key words
microchannel/mass transfer/CO2/diethanolamine/absorption分类
化学工程引用本文复制引用
周旭,王晓静,朱春英,马友光,徐义明..微通道内二乙醇胺/乙醇溶液吸收 CO2的传质性能[J].化工学报,2016,67(7):2901-2906,6.基金项目
国家自然科学基金项目（21276175，91434204，21306127）。@@@@supported by the National Natural Science Foundation of China (21276175,91434204,21306127) （21276175,91434204,21306127）
