θ环填料塔中单乙醇胺吸收CO_2传质性能研究  

Mass Transfer Performance in a θ-ring Packed Tower for CO_2 Absorption Process Using Monoethanolamine(MEA)

作　　者：那艳清[1] 符开云[1] 梁志武[1] 奚飞[1] 刘贺磊[1] 李文生[1] TONI WACHWUTHIKUL P T 

机构地区：[1]湖南大学化学化工学院CO2捕获与封存国际合作中心(iCCS),湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2011年第3期69-72,共4页Journal of Hunan University:Natural Sciences

基　　金：湖南省科学技术厅科技计划重点项目(2010SK2001)

摘　　要：在乱堆θ环不锈钢填料的自制填料塔中,使用单乙醇胺（MEA）作为吸收剂,研究MEA脱除CO2的去除率和总体积传质系数KGav,考察了贫液中CO2负载量、吸收剂浓度、液体流量、吸收温度等不同参数对总体积传质系数的影响.实验结果表明,KGav随贫液中CO2负载量的增大而减小,随吸收剂浓度、液体流量的增大而增大;且进料温度在30~50℃时,KGav随温度的增大而增大.The mass transfer coefficient（KGav） and the removal efficiency of carbon dioxide for aqueous MEA-based absorption process were investigated in a packed absorber filled with θ-ring stainless steel packing.The experiment results showed that KGav decreased with the increase of CO2 lean-loading,and increased with the rise of MEA concentration and liquid flow rate.In addition,an increase in feed temperature from 30 to 50 ℃ led to an increase in KGav.

关 键 词：二氧化碳 单乙醇胺 填料塔 传质系数 

分 类 号：TQ028.17[化学工程]