沼气净化制取高纯度生物质甲烷技术进展

Technical progress in purification technology for high purity methane biogas from biomass

分析和对比了国内外沼气利用技术现状,综述了高压水洗工艺、化学吸收工艺、变压吸附工艺(PSA)、膜分离工艺、低温分离工艺和原位脱碳工艺等技术的研究和发展概况,对各种工艺技术进行了对比和总结,指出需要依据当地自然条件和政府政策等因素对净化工艺进行选择和开发。

The current situation of biogas utilization technology at home and abroad is analyzed and compared. The research and development situation of technologies such as high pressure water washing process, chemical absorption process, pressure swing adsorption technology （PSA）, membrane separation technology, low temperature separation process and in-situ decarburization process are summarized. The suggestions that selection and exploitation of purification process should obey the local natural conditions and government policies and other factors are proposed as well.