高涵	郭亚平	褚联峰	郭亚军
上海师范大学化学系	上海师范大学化学系	上海师范大学化学系通讯作者:郭亚军Absorption of Carbon Dioxide into Aqueous Solutions of Alkanolamines in a Packed Column
GAO Han	GUO Ya-ping	CHU Lian-feng	GUO Ya-jun,
Department of Chemistry, Shanghai Normal University	Department of Chemistry, Shanghai Normal University	Department of Chemistry, Shanghai Normal UniversityReceived:Contact:GUO Ya-jun,
摘要/Abstract
摘要:采用工业流程中的填料吸收塔和解吸塔,研究了乙醇胺(MEA)、哌嗪(PZ)、二乙烯三胺(DETA)、三乙烯四胺(TETA)与N-甲基二乙醇胺(MDEA)的混合溶液作为吸收剂对模拟合成气中CO2的吸收性能. 结果表明,胺活化性能依次为TETA>DETA>PZ>MEA;含TETA的吸收液可将尾气中CO2的浓度降至0.05%(mol),CO2脱除率达98.62%;增加活化剂浓度和降低气体流量有利于提高CO2脱除率;吸收-解吸循环条件下吸收速率是随吸收时间和活化剂浓度变化的指数递减函数.
Abstract:The removal efficiency of carbon dioxide into the aqueous solutions of N-methyldiethanolamine (MDEA) containing monoethanolamine (MEA), piperazine (PZ), diethylenetriamine (DETA) and triethylenetetramine (TETA) as activators in a packed absorption column was investigated. The results indicated tha