捕集低浓度二氧化碳的化学吸收工艺及其综合比较  

Chemical absorption processes for low concentration CO_2 and comprehensive comparison

作　　者：宋存义[1] 周向[1,2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]美国辛辛那提大学土木与环境工程学院,辛辛那提俄亥俄美国45220

出　　处：《环境工程学报》2012年第1期1-8,共8页Chinese Journal of Environmental Engineering

摘　　要：目前CO2捕集成为减缓全球变暖的重要技术,但是迄今为止没有一种技术能够大规模商业化运行。在现有技术中,化学吸收法最具前景,而化学吸收法中研究最集中的吸收剂为单乙醇胺、哌嗪-碳酸钾溶液、离子液和氨水。为了了解各个化学吸收工艺的特点和应用情况,有必要对上述工艺进行综合比较。通过各种吸收剂的特性、工艺特点、研究进展和能耗等方面的比较,显示单乙醇胺工艺成熟度较高,联合氨法工艺前景非常好,而离子液和哌嗪-碳酸钾工艺需要进一步研究。CO2 capturing has been becoming an important technology to mitigate the global warming,but there is no technology that is ready for large-scale industrial use now.The chemical absorption is the most promising process in all the methods.Research on MEA,PZ-K2CO3,ILs and ammonia are the hot off the press.It is necessary to have a comprehensive comparing on these solvents for knowing their characters and application.It is found that MEA process is much mature,ammonia process has great prospects,IL and PZ-K2CO3 processes need more research,through comparing the properties of solvents and processes,research progress,energy cost,etc.

关 键 词：单乙醇胺 哌嗪-碳酸钾 离子液 氨水 

分 类 号：X511[环境科学与工程—环境工程]