文献类型：期刊文献

英文题名：Preparation of supported carbon molecular sieve membrane from novolac phenol-formaldehyde resin

作者：Wei, Wei[1]; Qin, Guotong[2]; Hu, Haoquan[3]; You, Longbo[3]; Chen, Guohua[4]

通讯作者：Wei, W[1]

机构：[1]Beijing Union Univ, Coll Arts & Sci, Dept Environm Sci, Beijing 100083, Peoples R China;[2]Beihang Univ, Dept Environm Engn, Beijing 100083, Peoples R China;[3]Dalian Univ Technol, Inst Coal Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China;[4]Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China

第一机构：北京联合大学应用文理学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Arts & Sci, Dept Environm Sci, 197 Beituchengxi Rd, Beijing 100083, Peoples R China.|[114172]北京联合大学应用文理学院;[11417]北京联合大学;

年份：2007

卷号：303

期号：1-2

起止页码：80-85

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20073610804165);Scopus(收录号：2-s2.0-34548324697);WOS:【SCI-EXPANDED(收录号:WOS:000250122000009)】；

基金：Project 50678023 supported by NSFC. Supported by fund of the National Basic Research Program (973 Program) of China (2005cb221202).

语种：英文

外文关键词：phenol-formaldehyde resin; carbon membrane; gas separation; molecular sieve

摘要：An asymmetric carbon membrane was prepared by coating alcohol solution of novolac phenol-formaldehyde resin containing a little hexamine on a porous resin support from the same material. After drying in air for two days at room temperature, the coated support was heated at 150 degrees C for I h in air (heating rate: 0.5 degrees C/min) and then carbonized at 800 degrees C (heating rate: 0.5 degrees C/min) in Ar atmosphere. The support and the membrane layer were carbonized simultaneously. The coating-pyrolysis cycle only needed one time. SEM photographs showed the carbon membrane had an asymmetric structure formed by a dense skin layer with a thickness of around 35 mu m and a porous substrate. Pure gases of different molecular size (H-2, CO2, O-2, N-2 and CH4) were used to test the carbon membrane permeance property. The membrane has a good selectivity for H-2/N-2 and H-2/CH4 with H-2 permeance of 4.05 x 10(-6) cm(3) cm(-2) s(-1) cmHg(-1). The permeance is independent of pressure. The results indicate that the gases transport through the membrane according to molecular sieve mechanism. (c) 2007 Elsevier B.V. All rights reserved.