K2CO3反应器填料塔二乙醇胺促进CO2吸收工艺研究  

Study on di-ethanolamine promoting CO2 absorption process in K2CO3 reactor packing tower

作　　者：武存喜[1] WU Cun-xi(Yan'an Vocational and Techinical College,Yan'an 716000,China)

机构地区：[1]延安职业技术学院,陕西延安716000

出　　处：《化学工程师》2020年第4期72-74,43,共4页Chemical Engineer

基　　金：陕西省职业技术教育学会职业教育研究一般课题(No.SZJYB19-344)。

摘　　要：研究了二乙醇胺(DEA)浓度对反应器填充柱中质量百分比30%的碳酸钾(K2CO3)水溶液反应吸收的影响。考察实验条件,温度40~80℃,DEA浓度为(1%~3%),流量为(0.5,0.75,1)L·min^-1。用滴定法测定液体样品中的CO2负荷。研究结果表明,DEA在70℃,浓度为3%,流量为1L·min^-1条件下对CO2的吸收效果最好,获得CO2负荷的最佳效果为0.066mol·mol^-1 K2CO3,CO2去除率为28%。随着DEA浓度的增加,负载能力和CO2去除率均增加。The effect of the concentration of diethanolamine(DEA)on the reaction and absorption of 30% by mass potassium carbonate(K2CO3)aqueous solution in a reactor packed column was studied.Examine the experimental conditions.The temperature is 40~80℃,the DEA concentration is(1%~3%),and the flow rate is(0.5,0.75,1)L·min^-1.The titration method was used to determine the CO2 load in the liquid sample.The results showed that at 70℃,the concentration of DEA was 3%,and the flow rate was 1L·min-1.Under the conditions,the effect of absorbing CO2 was the best.The rate is 28%.With the increase of DEA concentration,both the loading capacity and CO2 removal rate increased.

关 键 词：碳酸钾 填料塔 二乙醇胺 促进剂 吸收工艺 

分 类 号：X701[环境科学与工程—环境工程]