中南大学学报（自然科学版）Issue(6)：2376-2381,6.DOI:10.11817/j.issn.1672-7207.2015.06.051
膜气体吸收法分离混合气中的苯
Membrane-based gas absorption for separation C6H6 from N2
摘要
Abstract
In a self-made membrane gas absorption-vacuum membrane distillation combined process device, by using N-formylmorpholine (NFM) aqueous solution as absorbent and hydrophobic porous polypropylene hollow fiber membrane module (HEPPM) as the membrane contactor, the performance of membrane gas absorption process for separating C6H6/N2 gas mixture was studied. A comprehensive review of the inlet gas flow, gas mass concentration, flow of absorbent, absorbent, absorbent temperature and volume fraction of NFM absorbent load on separation efficiency was carried out. The experimental results show that benzene removal rate of52.8%−99.3% and the total volumetric mass transfer coefficient of 0.008−0.026 s−1 are achieved, under the conditions of the NFM volume fraction of 40%, imports of gas concentration of 3.6−9.6 mg/L, absorbent flow rate of15−75 mL/min, and inlet gas flow of 50−300 mL/min, indicating that the membrane gas absorption process for separating C6H6/N2 mixed gas has the advantages of high separation efficiency and high rate of mass transfer.关键词
膜气体吸收/聚丙烯中空纤维膜/N-甲酰吗啉/苯Key words
membrane-based gas absorption/polypropylene hollow fiber membrane/N-formyl morpholine/benzene分类
化学化工引用本文复制引用
孙秀云,褚禛,吴一,李睿,李健生,王连军..膜气体吸收法分离混合气中的苯[J].中南大学学报（自然科学版）,2015,(6):2376-2381,6.基金项目
江苏省教育厅高校科研成果产业化推进项目(JH09-10)(Project (JH09-10) supported by Scientific Research and Industrialization of Jiangsu Provincial Department of Education) （JH09-10）
