High-Performance Microporous Carbon-zeolite T Composite Membrane for CO2/CH4 Separation

摘要：

Novel carbon/zeolite T composite membrane materials with tailorable gas transport properties were fabricated by pyrolysis of polyamic acid/zeolite T composites. The microstructure and gas permeability of these chemically robust materials were characterized by SEM, XRD and gas permeation tests. The results show that zeolite T was well dispersed in the carbon matrix and the crystal microstructures was not destroyed during the pyrolysis. Gas permeation test indicated that the composite membranes exhibited outstanding permeability together with high selectivity. It is believed that the zeolite T embedded in the carbon matrix decreased the gas diffusion resistance and improved the gas permeation rate. The composite membrane has an intrinsic CO2/CH4 selectivity of 15 with CO2 permeability of 1532 Barrer 1 Barrer =1× 10 -10 cm 3 (STP)·cm/cm 2 ·s·cmHg.

关键词： Polyamic acid zeolite T composite membrane gas separation

作者: Qingling Liu Tonghua Wang Xuanying Zhao Shili Liu Changhai Liang Zhiguo Zhang Hongchen Guo

作者单位: State Key Laboratory of Fine Chemicals, Carbon Research Laboratory, School of Chemical Engineering, State Key Laboratory of Fine Chemicals, Department of Catalysis Chemistry and Engineering, Dalian Un

会议类型: 国际会议

会议名称: The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-14（万方平台首次上网日期，不代表论文的发表时间）