分子扩散测定方法的研究进展  

Research advances on measurement methods of molecular diffusion*

作　　者：王文兰[1] 黄永[2] 何琳琳[2] 刘百军[2] 

机构地区：[1]北华大学化学与生物学院,吉林吉林132013 [2]中国石油大学(北京)CNPC催化重点实验室,北京102249

出　　处：《化学工程师》2008年第5期38-40,50,共4页Chemical Engineer

基　　金：国家自然科学基金资助项目(No.20576077)

摘　　要：介绍了近年来多孔材料中分子扩散研究的发展,重点介绍了测定方法的新进展。指出多孔材料中分子扩散的研究主要集中于小分子如丁烷、异丁烷、戊烷、环戊烷、环已烷、苯、甲苯、对二甲苯、乙苯、邻二甲苯等。认为在众多方法中,重量法、程序升温脱附法、色谱法及膜池法等以其方便有效,是将来发展的重要测试方法。This paper reviewed the research on the molecular diffusion in porous materials in recent years, in particular the progress on the test techniques. The molecules investigated mainly focus on butane, iso - butane, pentane, eyelopentane, eyelohexane, benzene, methylbenzene, p - xylene, ethylbenzen, o - xylene and etc. The gravimetrie analysis, temperature program desorption, chromatography and diaphragm - cell are important test techniques which should be further developed due to their convenience and high efficiency in operation.

关 键 词：扩散 测定方法 研究进展 

分 类 号：TQ021.4[化学工程]