Dual-Membrane Module and Its Optimal Flow Pattern for H-2/CO2 Separation
发表时间：2019-03-13
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- 论文类型：
- 期刊论文
- 第一作者：
- Chen, Bo
- 通讯作者：
- He, GH (reprint author), Dalian Univ Technol, Sch Chem Engn, Ctr Membrane Sci & Technol, State Key Lab Fine Chem Res & Dev, Dalian 116024, Liaoning, Peoples R China.; He, GH (reprint author), Dalian Univ Technol, Sch Petr & Chem Engn, Dalian 116024, Liaoning, Peoples R China.
- 合写作者：
- Ruan, Xuehua,Jiang, Xiaobin,Xiao, Wu,He, Gaohong
- 发表时间：
- 2016-02-03
- 发表刊物：
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
- 收录刊物：
- SCIE、EI、Scopus
- 文献类型：
- J
- 卷号：
- 55
- 期号：
- 4
- 页面范围：
- 1064-1075
- ISSN号：
- 0888-5885
- 摘要：
- A dual-membrane module is, able to provide higher separation performance for H-2/CO2 gas mixtures compared to conventional single-membrane modules. In this work, the flow patterns of dual-membrane modules are studied, and the results indicate that the co(H-2):counter(CO2) flow pattern is the optimal flow pattern for H-2 recovery. The co(H-2):counter(CO2) flow pattern employs cocurrent (permeate flow parallel to bulk flow) to the H-2-selective membrane and counter-current (permeate flow reverse to bulk flow) to the CO2-selective membrane; the flow pattern reduces the permeation flux of CO2 in the H-2 selective membrane, resulting in a higher H-2 separation factor. The evaluations show that the H-2 product purity could be raised by 35% (from 62 mol % to 84 mol %) compared to conventional membrane modules. The results indicate that enhancing the membrane separation performance through flow pattern is a practical and effective method for process engineering.
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- 否
