己二酸对MEA吸收-解吸CO2过程的影响<

化工学报 ›› 2011, Vol. 62 ›› Issue (2): 412-419.

己二酸对MEA吸收-解吸CO₂过程的影响<

杜敏，张力，Bo Feng

重庆大学动力工程学院; University of Queensland

出版日期:2011-02-05 发布日期:2011-02-05

Effect of adipic acid on absorption and desorption of CO₂with MEA solution

DU Min, ZHANG Li, Bo Feng

Online:2011-02-05 Published:2011-02-05

摘要/Abstract

摘要：

实验研究了己二酸对MEA水溶液吸收-解吸CO₂的影响。在0.4 mol·L-1 MEA的CO₂吸收富液解吸过程加入一定量的己二酸并分析了其对CO₂解吸能耗和解吸速率的影响，发现解吸速率明显升高，析出单位体积CO₂的能耗显著降低；对解吸还原后的贫液进行了CO₂二次吸收的实验，发现因加酸引起的CO₂二次吸收量变化小于7%；为去除不确定因素对CO₂

Abstract:

Some experiments were conducted to investigate the effect of addition of adipic acid on absorption and desorption processes of CO₂ in MEA solutions.For the desorption of CO₂ in MEA with concentration of 0.4 mol·L^-1, the energy consumption was decreased by addition of adipic acid, and the desorption rate was improved.The absorption capacity of lean solvents was decreased in the second absorption processes, but only a small difference (<7%）was observed between the amounts of CO₂ absorbed in lean solvents with/without addition of adipic acid.When the same amount of adipic acid was added directly into the MEA solvent at the beginning of absorption process, the absorption capacity for CO₂decreased.For the MEA solutions with higher concentrations (7 mol·L^-1 and 12 mol·L^-1), and the decreases in the absorption capacity resulted from the addition of adipic acid was less as the concentration increased, the energy consumption for desorption decreased considerably, and the desorption rate increased.By comparison of the effect on absorption and desorption of CO₂, it is concluded that addition of adipic acid is effective to reduce the energy requirement in solvent absorption of CO₂.

杜敏, 张力, Bo Feng. 己二酸对MEA吸收-解吸CO₂过程的影响< [J]. 化工学报, 2011, 62(2): 412-419.

DU Min, ZHANG Li, Bo Feng. Effect of adipic acid on absorption and desorption of CO₂with MEA solution[J]. CIESC Journal, 2011, 62(2): 412-419.

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己二酸对MEA吸收-解吸CO₂过程的影响<

Effect of adipic acid on absorption and desorption of CO₂with MEA solution

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