化工学报2016，Vol.67Issue(6)：2371-2379,9.DOI:10.11949/j.issn.0438-1157.20151503
真空变压吸附捕集烟道气中二氧化碳的模拟、实验及分析
Simulation, experimentation and analyzation of vacuum pressure swing adsorption process for CO2 capture from dry flue gas
阎海宇 1付强 1周言 1李冬冬 1张东辉1
作者信息
- 1. 天津大学化工学院，化学工程联合国家重点实验室，天津 300072
- 折叠
摘要
Abstract
This paper firstly conducted the experiments of CO2 capture from flue gas by vacuum pressure swing adsorption (VPSA) based on the two-bed experimental set-up using industrial silica as adsorbent. The mathematical model of VPSA process was built in gPROMS and its validity was well verified by comparing the results of simulation with experiment. The concentration of CO2 can be enriched to 74% from 15% with recovery of 91.52% by the two-bed VPSA process. Based on the model, the relationship of product concentration, recovery, energy consumption of CO2 with feed flowrate, adsorption time and blowdown pressure was investigated. The influence of bed pressure and feed flowrate on compressor energy consumption was also studied. Results showed that the concentration of CO2 can be enriched significantly by increasing feed flowrate, extending adsorption time and decreasing counter-blowdown pressure, but all of them were companied with reduction in recovery and the former two led to a higher energy consumption. The higher in adsorption pressure and larger in feed flowrate, the more energy will the compressor consumed.关键词
变压吸附/烟道气/二氧化碳捕集/动态模拟/实验验证/流程分析Key words
VPSA/flue gas/CO2 capture/dynamic modeling/experimental validation/process analyzation分类
化学化工引用本文复制引用
阎海宇,付强,周言,李冬冬,张东辉..真空变压吸附捕集烟道气中二氧化碳的模拟、实验及分析[J].化工学报,2016,67(6):2371-2379,9.
