北京科技大学学报Issue(4)：529-534,6.DOI:10.13374/j.issn1001-053x.2014.04.016
基于轻组分充压的改进型三塔真空变压吸附工艺富集煤矿乏风瓦斯的实验研究
Experimental study on the improved VPSA process of pressurization with raffinate for VAM upgrading
摘要
Abstract
An improved pressurization step with raffinate and vacuum exhaust step were developed and experimentally studied in a three-bed vacuum pressure-swing adsorption ( VPSA) system with activated carbon for ventilation air methane ( VAM) upgrading. It is found that pressurization with raffinate from the effluent end can prolong the penetration time and increase the CH4 concentration in product gas in the case of the same raffinate concentration;but the vacuum exhaust step can increase the CH4 concentration in product gas without increasing pressure. A three-bed VPSA cycle which contains the two steps was also studied experimentally. The results show that the CH4 concentration in product gas can increase from 0.4% to 0.654% with the CH4 recovery of 65% when the CH4 concentration in feed is 0.2% and the adsorption and desorption pressures are 140 kPa and 20 kPa, respectively.关键词
真空变压吸附/活性炭/乏风瓦斯/富集Key words
vacuum pressure-swing adsorption ( VPSA)/activated carbon/ventilation air methane ( VAM)/enrichment分类
化学化工引用本文复制引用
张传钊,刘应书,李永玲,杨雄,孟宇..基于轻组分充压的改进型三塔真空变压吸附工艺富集煤矿乏风瓦斯的实验研究[J].北京科技大学学报,2014,(4):529-534,6.基金项目
国家高技术研究发展计划资助项目(2009AA063201) （2009AA063201）
中央高校基本科研业务费专项资金资助项目(FRF-SD-12-013A) （FRF-SD-12-013A）
