MAPA、DEEA、BDA及BDA/DEEA混合物吸收CO_2的实验研究  

CO_2 Solvent by MAPA,DEEA,BDA and BDA/DEEA Mixtures

作　　者：徐志成[1] 王淑娟[1] 陈昌和[1] 

机构地区：[1]清华大学热能工程系热科学与动力工程教育部重点实验室,北京100084

出　　处：《燃烧科学与技术》2013年第2期103-108,共6页Journal of Combustion Science and Technology

基　　金：国家自然科学基金资助项目(50876051)

摘　　要：为了筛选更加高效的CO2吸收剂,采用快速筛选实验台测定了不同浓度的MAPA(3-甲氨基丙胺、C4H12N2)、DEEA(N,N-二乙基乙醇胺,C6H15NO)、BDA(1,4-丁二胺,C4H12N2)以及BDA与DEEA组成的混合溶液的吸收解吸性能,并将其与传统的质量分数为30%MEA(单乙醇胺,C2H7NO)进行了对比,分析了循环吸收容量和循环负载量对解吸能耗的影响.结果显示,在2 mol/L和4 mol/L的浓度下,同浓度的BDA比MAPA有更大的循环吸收容量、循环负载量和循环效率.2,mol/L BDA与4,mol/L DEEA组成的混合溶液在吸收后会发生分层,其循环吸收容量、循环负载量和循环效率分别比5,mol/L MEA高46.8%、48.2%和10.9%,是具有较大应用潜力的吸收剂.In order to select novel CO2 solvent, a fast screening facility was used to investigate the absorption- desorption properties of MAPA （N-methyl- 1, 3-diaminopropane）, DEEA （diethylaminoethanol）, BDA （1,4-diaminobu- tane） and the blends of BDA and DEEA. Their properties were compared with that of 30%（mass fraction） MEA （monoethanolamine）. The influence of cyclic capacity and cyclic loading on energy consumption was analyzed. The results show that at the concentration of 2 mol/L and 4 mol/L, BDA performed better than MAPA. 2 mol/L BDA plus 4 mol/L DEEA has the best performance, with cyclic loading, cyclic capacity and cyclic efficiency 48.2%, 46.8% and 10.9% higher than those of 5 mol/L MEA. So 2 mol/L BDA/4 mol/L DEEA mixture is promising for further application.

关 键 词：BDA DEEA MAPA CO2 吸收剂 

分 类 号：TQ028[化学工程]