摘要
填埋气中由于含有大量的甲烷,具有很高的能源利用价值,并逐渐应用于发电、生产可再生燃料和热电联产等过程中。但填埋气中主要的杂质成分CO2会降低填埋气的热值,影响填埋气的资源化利用,因此CO2的去除对于提高填埋气的品质是很关键的一步。文章主要综述了目前应用较广的填埋气中CO2的净化技术、物理化学吸收法、变压吸附等工艺的原理、特点和研究进展等,并对各工艺进行了对比分析。
Landfill gas (LFG) has been gradually used for electricity generation, renewable fuel production, combined heat and power generation process for its high concentration of methane and high energy value.However, the carbon dioxide (CO2) in landfill gas as main impurity makes the heat value lower and affects the utilization of landfill gas as a potential energy resource, So the removal of CO/is the key step for upgrading the quality of landfillgas. The main removal technologies include physical and chemical absorption and pressure swing adsorption (PSA) etc. Based on their nrincinles, the characteristics of these technologies are summarized and compared.
出处
《可再生能源》
CAS
北大核心
2013年第1期87-92,共6页
Renewable Energy Resources
基金
教育部博士点新教师基金资助(20110001120114)
深圳市新能源基础研究杰青项目资助(XNY201110021)
关键词
填埋气
CO2净化技术
吸收法
变压吸附
landfill gas
CO2 purifying technologies
absorption
pressure swing adsorption (PSA)