电厂CO_2捕集系统DEA化学吸收剂性能与能耗实验研究  

Experimental investigation of performances and renewable energy consumption of absorbent DEA in CO_2 capture system

作　　者：刘炳成[1,2] 史澄辉[1] 李庆领[1] 张建[1,2] 

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061 [2]胜利石油管理局,山东东营257000

出　　处：《武汉大学学报（工学版）》2012年第6期817-820,共4页Engineering Journal of Wuhan University

基　　金：国家科技部十二五科技支撑计划项目(编号:2012BAC24B00);胜利石油管理局科技攻关项目;青岛科技大学博士专项基金资助

摘　　要：CO2排放引起的温室效应已经影响到人类社会的发展和生存,而CO2捕集系统吸收剂的性能与能耗制约着电厂烟气脱碳减排的大规模推广.利用搭建的室内实验平台,实验结果表明:1)增大吸收剂浓度有利于提高二乙醇胺DEA的CO2吸收性能和吸收总量;2)90℃时DEA吸收剂的解吸速率较高,且解吸速率随吸收剂浓度的增大而显著提高;3)15wt%的DEA吸收剂具有较高的解吸速率和较低的解吸能耗,溶液再生度可达80%,综合性能良好.Greenhouse effect has started to influence the development and survival of human society.Power plants become the main source of CO2 emissions while the absorbent characteristics and high renewable energy consumption restricts the CO2 capture technology promotion.The characteristics of absorbent DEA,such as absorption and desorption performance,renewable energy consumption,solution pH,and regeneration degree,were investigated.Experimental results indicate that：1） Along with the increase of solution concentration,the CO2 absorption rate and total absorption improve obviously.2） The CO2 desorption rate of DEA improves significantly with the increasing of absorbent concentration,and reaches higher value at 90℃.3） 15wt% DEA solution shows higher desorption rate and lower reanewble energy consumption than that of other concentration DEA solution;and its regeneration degree reaches up to 80%.

关 键 词：二氧化碳捕集 吸收剂DEA 解吸能耗 吸收性能 再生度 

分 类 号：X131.1[环境科学与工程—环境科学]