作者
Chin-hung Cheng, Kangkang Li, Hai Yu, Kaiqi Jiang, Jian Chen, Paul Feron
发表日期
2018/2/1
期刊
Applied energy
卷号
211
页码范围
1030-1038
出版商
Elsevier
简介
For the large-scale implementation of amine-based post-combustion CO2 capture, the energy consumption associated with the absorbent regeneration remains the most critical challenge. Despite efforts to reduce regeneration duty, such as using new amine formulations and modifying process configurations, an advanced method of overcoming this technical barrier is still required. Here, we introduce a novel approach to decreasing the heat requirement of absorbent regeneration by introducing metal ions catalyst into aqueous amine solution. Our approach uses the dual ability of amine in aqueous solution to both react with CO2 and complex with transition metal ions to reduce the heat of CO2 desorption via metal–amine complexation. Based on benchmarking monoethanolamine (MEA) absorbent and copper (Cu) ions, we developed a model that describes the process chemistry of Cu(II)–MEA–CO2–H2O to …
引用总数
20182019202020212022202320241011131112910