化工环保2024，Vol.44Issue(2)：213-220,8.DOI:10.3969/j.issn.1006-1878.2024.02.008
MAP-DMSO-PMDETA三元相变吸收剂的CO2捕集性能
CO2 capture capability of MAP-DMSO-PMDETA ternary phase-change absorbent
摘要
Abstract
A novel MAP-DMSO-PMDETA ternary phase change absorbent was prepared using secondary amine 3-methylamino-1-propanol(MAP)as the main absorbent,dimethyl sulfoxide(DMSO)as the organic diluent,and pentamethyldiethylenetriamine(PMDETA)as the auxiliary absorbent.The phase change behavior and CO2 absorption capability of the absorbent were investigated.The experimental results show that:Under the optimal conditions of mass ratio of MAP to DMSO to PMDETA 3∶6∶11,absorption temperature 40℃,CO2 volume fraction 10%,and air inlet flow 1.25 L/min,liquid-liquid phase separation occurs after absorption saturation,with 0.79 mol/kg of the absorbent loading amount,0.47 mol/mol(calculated as MAP)of the absorbed load,and 45.1%of the volume fraction of the rich phase which 95.1%of CO2 is enriched,while the viscosity of the rich phase is only 11.83 mPa·s;This ternary phase change absorbent not only has excellent desorption performance,but also has good cycle stability.After 5 absorption-desorption cycles,the desorption load is stable at about 0.34 mol/mol(calculated as MAP),and the desorption efficiency can reach 69.4%.关键词
吸收剂/二氧化碳捕集/鼓泡塔/相变/解吸Key words
adsorbent/CO2 capture/bubble column/phase change/desorption分类
资源环境引用本文复制引用
陈家伟,杨柳,李新令,黄震..MAP-DMSO-PMDETA三元相变吸收剂的CO2捕集性能[J].化工环保,2024,44(2):213-220,8.基金项目
上海市市级科技重大专项"可再生合成燃料基础理论与关键技术". （）
