PVAm/PAN复合膜的制备及其对CO2/CH4的分离性能
CIESC Journal
• 材料科学与工程 • 上一篇
王志;董传明;吕强;王世昌
天津大学化学工程研究所, 天津 300072
出版日期:
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WANG Zhi;DONG Chuanming;LV Qiang;WANG Shichang
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Abstract: New polymeric membrane materials——polyvinyl amine (PVAm) with different primary amine contents were synthesized.By covering polyacrylonitrile(PAN) ultrafiltration membranes with PVAm, the PVAm/PAN composite membranes for CO2/CH4 separation were prepared. The composite membranes containing more primary amino groups have higher selectivity for CO2/CH4.The cross-linking of acid or glutaradehyde could improve the gas permselectivity of the composite membranes. With decreasing CO2 content in the feed gas, the CO2/CH4 separation factor increased.When the feed gas was 25%(vol) CO2 and 75%(vol) CH4, the CO2 permeation rate was 4.1×10-9cm3(STP) 8226;cm-28226;Pa-18226;s-1, and the CO2/CH4 separation factor was 180.
王志;董传明;吕强;王世昌.
WANG Zhi;DONG Chuanming;LV Qiang;WANG Shichang. PREPARATION AND CO2 SEPARATION PERFORMANCE OF POLYVINYL AMINE/POLYACRYLONITRILE COMPOSITE MEMBRANES[J]. .
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https://hgxb.cip.com.cn/CN/Y2003/V54/I8/1188