The relationship between oxidative degradation and ammonia emission of carbon capture amines based on their chemical structures

作     者：Pailin Muchan Teeradet Supap Jessica Narku-Tetteh Supranee Lisawadi 

作者机构：Clean Energy Technologies Research Institute(CETRI)Faculty of Engineering and Applied ScienceUniversity of ReginaReginaSaskatchewanS4S 0A2Canada Department of Mathematics and StatisticsFaculty of Science and TechnologyThammasat UniversityPathum Thani12120Thailand 

出 版 物：《Clean Energy》 (清洁能源（英文）)

年 卷 期：2024年第8卷第1期

页      面：134-152页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by Bualuang ASEAN Chair Professor Fund.Also the financial support provided by the Natural Science&Engineering Research Council of Canada(NSERC)and the SaskPower Clean Energy Research Chair programme is gratefully acknowledged 

主　　题：amine degradation rate ammonia emission rate carbon capture amine structure oxidative degradation amines 

摘      要：This work investigates the effect of chemical structural positioning of different functional groups in 29 amines covering primary,secondary and tertiary alkanolamines as well as multi-alkylamines and cyclic amines on both amine degradation and ammonia(NH_(3))emissions during post-combustion amine-based carbon dioxide *** results helped to elucidate possible relation-ships between degradation and emissions as related to the chemical structure of the *** results showed that longer alkyl chain lengths in multi-alkylamines caused a more drastic decrease in both degradation and NH_(3) emissions followed by secondary *** decrease in those activities for primary and tertiary alkanolamines as well as cyclic amines was low and more so for NH_(3) *** contrast,the increase in hydroxyl groups in secondary alkanolamines caused a drastic increase in degrad-ation and NH_(3) *** the other hand,having more hydroxyl groups in sterically hindered primary and tertiary alkanolamines caused a more drastic decrease in degradation and a smaller decrease in NH_(3) emissions due to the steric hindrance within their *** increase in the number of amino groups in an amine caused an increase in both degradation and NH_(3) emission rates because these provided the reactive sites for the formation of free *** effect was not as large in alkyl-cyclic amines as in multi-alkylamines due to the ability of the former to resist oxidative ***,branched alkyl groups between amino and hydroxyl groups more drastically increased both the degradation and NH_(3) emission activities than branched alkyl groups located at the nitrogen atom.