摘要
有机废弃物厌氧消化产生沼气的过程是一种低碳处理模式,然而沼气中较高含量的CO_(2)限制了沼气的进一步利用,如何分离和利用沼气中的CO_(2)是解决沼气高值低碳利用的关键所在。综述了膜分离、水洗、变压吸附、低温分离、化学吸收等分离沼气中CO_(2)技术,通过揭示各项技术原理,详细分析了其优缺点、经济性及适用性。同时,对生物技术转化和利用沼气中CO_(2)进行了综述,并对各项技术的选择提供了比选依据,以期为沼气的工程应用提高参考。
Anaerobic digestion process is a low carbon treatment mode,however,higher content of CO_(2)in biogas restricts its further utilization.Separation and utilization of CO_(2)in biogas are the key issue to solve the problem of high value and low carbon utilization of biogas.This paper summarized technologies to separate CO_(2)in biogas,including membrane separation,water washing,pressure swing adsorption,low temperature separation,chemical absorption.It revealed the principles of the advantages and disadvantages,economy and applicability of those technologies in detail.At the same time,it summarized the conversion and utilization of CO_(2)in biogas by biotechnology,and provided the basis for comparison and selection of various technologies.Based on above,this paper aimed to improve the reference for the wider engineering application of biogas.
作者
唐治
李政伟
TANG Zhi;LI Zhengwei(Agricultural product quality and environment monitoring station in Qijiang District,Chongqing 401420,China;Chongqing University,College of environment and ecology,Chongqing 400044,China;Yellow river engineering consulting company limited,Zhengzhou 450003,China)
出处
《中国沼气》
CAS
2023年第5期10-17,共8页
China Biogas
基金
国家自然科学基金(42077319)。
关键词
沼气提纯
碳排放
膜分离
水洗
化学吸收
biogas upgrading
carbon emission
membrane separation
water scrubbing
chemical absorption
