PZ/AEEA混合吸收剂脱碳性能研究  

Research on CO_2 Capture Performance of PZ/AEEA Blends

作　　者：湛志钢[1] 周旭萍[2] 徐齐胜[1] 李方勇[1] 余岳溪[1] 方梦祥[2] 刘飞[2] 王涛[2] 骆仲泱 

机构地区：[1]广东电网公司电力科学研究院,广州510080 [2]浙江大学能源清洁利用国家重点实验室,杭州310027

出　　处：《动力工程学报》2016年第7期535-540,共6页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(51076139;51276161);国际合作资助项目(2013DFR60140);浙江省自然科学基金资助项目(LY13E060004)

摘　　要：在湿壁塔实验系统上比较了不同质量分数配比的混合吸收剂的传质特性,研究了哌嗪(PZ)/羟乙基乙二胺(AEEA)不同质量分数配比和不同溶液负荷对混合吸收剂总传质系数的影响;在鼓泡吸收实验台上比较了不同质量分数配比和不同温度条件下PZ/AEEA混合吸收剂的CO_2连续吸收性能.结果表明:PZ/AEEA混合吸收剂在传质特性、吸收容量和吸收速率方面显著优于30%MEA;溶液负荷对PZ/AEEA混合吸收剂的传质特性影响较大,近似线性相关;温度对PZ/AEEA混合吸收剂的CO_2连续吸收性能影响较为显著,而质量分数配比对该混合吸收剂的传质特性和连续CO_2吸收性能的影响均较小.Mass-transfer properties of piperazine （PZ）/2- （2-aminoethylamino） ethanol （AEEA） blends in different mixing for CO2 capture were investigated in a wetted-wall column, so as to study the effects of mixing ratio and CO, loading on overall masratios s-transfer coefficient of the blends. Meanwhile, continuous CO2 absorption performance of PZ/AEEA blends in different mixing ratios were analyzed in a bubbling reactor at different temperatures. Results show that PZ/AEEA blends have better performance than 30% MEA in mass-transfer properties, absorption capacity and absorption rate. CO2 loading affects the masstransfer properties of PZ/AEEA blends, approximately linearly dependent; while temperature significantly influences the CO2 absorption of PZ/AEEA blends. However, the mixing ratio has less effect on both the CO2 absorption and mass-transfer properties of PZ/AEEA blends.

关 键 词：哌嗪 羟乙基乙二胺 脱碳 混合吸收剂 湿壁塔 

分 类 号：TQ028.1[化学工程]