Development of Alkyl-Functionalized New Polyamine Based Non-Aqueous Solvent for Energy Efficient CO2 Capture

该项目开发了一种新的基于异丙基功能化多胺（IPFPA）的非水溶剂（NAS），用于从燃烧后烟气中回收二氧化碳，这将显著提高二氧化碳捕获性能，同时减少溶剂再生能量。本项目共合成了10个新的（第二代）IPFPA(s)，纯度高（>98%），收率高（>96%）。NAS系统是由IPFPA作为吸收剂和市售的酒精/非酒精作为溶剂混合制成的。去年所有优化合成的多胺全部完成。今年完成了5种酒精溶剂和5种非酒精溶剂筛选实验，其中IPFPA表现最好。优选异丙基功能化多胺IP-DMDPTA为最佳多胺，优选1-甲基咪唑为最佳有机溶剂。对基于（IP-DMDPTA+1MIm）的NAS进行了优化，全面测量了所有相关性能，并确定了具有高CO2吸收率，高CO2循环量，且消耗最少热能的最佳组成。

This project, new isopropyl-functionalized polyamine (IPFPA) based non-aqueous solvent (NAS) was developed for the recovery of CO2 from post-combustion flue gases that will achieve a significant increase in CO2 capture performances with a reduction of solvent regeneration energy. A total of 10 new (Generation II) IPFPA(s) was synthesized with high purity (>98%) and excellent yield (>96%) during this project. The NAS system was made by mixing IPFPA as absorbent and commercially available alcohol/non-alcohol as solvent. Last year the optimization of all synthesized polyamine completed. This year 5 alcohol solvents and 5 non-alcohol solvents screening experiments was completed with the best IPFPA performer. Isopropyl functionalized polyamine IP-DMDPTA was identified as best polyamine and 1-methylimidazole (1MIm) was identified as best organic solvent. (IP-DMDPTA+1MIm) based NAS was optimized, thoroughly measuring all relevant properties, and identified their best composition which give high CO2 absorption rate, high cyclic amount of CO2, and consume the minimal amount of heat energy.