摘要
液液两相吸收剂具有大幅度降低CO2捕集能耗的潜力。该文在前期实验筛选的基础上,选择了两种具有液液两相特征的吸收剂,DMBA(N,N-二甲基丁胺)和TEA(三乙基胺),分析了其分层后的CO2负载量;在自建的快速筛选实验台上,将两相吸收剂的吸收、解吸性能与传统的单乙醇胺(MEA)吸收剂进行了对比;并研究了不同吸收剂摩尔浓度变化对吸收剂性能的影响。结果显示:相比于MEA,所选用的两相吸收剂具有更高的循环负载量、循环吸收容量和循环效率,但其吸收速率较低。
Liquid-liquid biphasic solvent can reduce the energy consumption during CO2 capture. Previous solvent screening was used to select two biphasic solvents, DMBA （N, N dimethylbutylamine） and TEA （triethylamine）. Analysis of the individual loadings in the upper and lower phases shows the basic characteristics of the biphasic solvents. Further solvent screening compares the absorption and desorption characteristics of these biphasic solvents and the traditional MEA （monoethanolamine） solvent to investigate the influence of solvent concentration. The results show that the biphasic solvents have higher cyclic loading, cyclic capacity, cyclic efficiency, and lower reaction rates than MEA.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2013年第3期336-341,352,共7页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金项目(50876051)
关键词
CO2捕集
两相吸收剂
吸收
解吸
CO2 capture
biphasic solvent
absorption
desorption
