化工学报2017，Vol.68Issue(2)：723-731,9.DOI:10.11949/j.issn.0438-1157.20160929
真空变压吸附分离CH4/N2/O2实验、模拟与安评
Experiment, simulation and safety evaluation of vacuum pressure swing adsorption for CH4/N2/O2 separation
周言 1沈圆辉 1付强 1张东辉1
作者信息
- 1. 化学工程联合国家重点实验室，天津大学化工学院，化学工程研究所，天津 300350
- 折叠
摘要
Abstract
In view of the poor deoxygenation and low safety for CH4/N2/O2 mixture a two-bed vacuum pressure swing adsorption (VPSA) process for separating 25%CH4/59%N2/16%O2 mixture was developed by numerical simulation and experiment based on the laboratory-made activated carbon adsorbent. The VPSA mathematical models were validated by comparing the influences of feed and replacement flowrates variations on experimental and simulative results, respectively. On the basis, safety analysis of entire VPSA process was performed systematically to seek for the steps in presence of potential safety hazard. On the basis of analysis, a more safe VPSA process was proposed to achieve safe separation operations. The research results showed that the two-bed VPSA process can obtain a rich-methane product with 51.36% methane purity and 85.65% recovery. The adsorption, pressure-equalization and pressurization were the dominating steps in the presence of potential safety hazard, which can be sought for a solution to realize the safe operations of VPSA process by feed gas inserting.关键词
CH4/N2/O2/真空变压吸附/模拟和实验/安全性分析Key words
CH4/N2/O2/vacuum pressure swing adsorption/simulation and experiment/safety analysis分类
化学化工引用本文复制引用
周言,沈圆辉,付强,张东辉..真空变压吸附分离CH4/N2/O2实验、模拟与安评[J].化工学报,2017,68(2):723-731,9.
