炭分子筛吸附分离甲烷/氮混合物研究进展  

Research progresses of adsorption separation of methane/nitrogen mixture on carbon molecular sieve

作　　者：席芳[1] 林文胜[1] 顾安忠[1] 刘薇 齐研科 

机构地区：[1]上海交通大学制冷与低温工程研究所,上海200240 [2]重庆燃气(集团)有限责任公司,重庆400020

出　　处：《低温与超导》2010年第9期41-44,16,共5页Cryogenics and Superconductivity

基　　金：重庆市科技攻关计划项目(2008AB6087)资助

摘　　要：高效浓缩甲烷/氮气混合气中的甲烷是合理利用煤层气、油田气和垃圾填埋气等资源时面临的重要技术难题之一。甲烷与氮气分子存在着微小的、但可操作的动力学直径差异。文中分析了以炭分子筛作为吸附剂,采用变压吸附分离技术分离甲烷/氮气的可行性,对炭分子筛的吸附分离机理、国内外的研究进展以及混合气在炭分子筛吸附床上的吸附动力学模型进行了探讨,并指出了在这一技术应用方面的一些不足。The effective enrichment of methane from methane/nitrogen mixture is one of the important questions in the proper utilization of coal-bed methane,associated gas and dumping ground gas.There is tiny but operable difference between the kinetic diameters of methane and nitrogen.The feasibility of separating methane and nitrogen by pressure swing adsorption on carbon molecular sieve was analyzed.The adsorption separation mechanism of carbon molecular sieve,the domestic and international research progresses and the dynamic models of the carbon molecular sieve adsorbent column were discussed,and some problems in the application of this technology were pointed out.

关 键 词：甲烷/氮气混合物 炭分子筛 变压吸附分离 动力学吸附 

分 类 号：TQ028[化学工程]