详细信息
胺分子结构与CO_2反应速度常数关系的研究
Research on Relationships between Structure of Amine and Its Reaction Rate with CO_2
文献类型:期刊文献
中文题名:胺分子结构与CO_2反应速度常数关系的研究
英文题名:Research on Relationships between Structure of Amine and Its Reaction Rate with CO_2
作者:王璐[1];杨敬一[1];徐心茹[1]
机构:[1]华东理工大学石油加工研究所
年份:2010
卷号:39
期号:2
起止页码:95
中文期刊名:石油与天然气化工
外文期刊名:Chemical engineering of oil & gas
收录:CSCD:【CSCD_E2011_2012】;
语种:中文
中文关键词:胺;CO2;反应速率常数;空间位阻;pKa
外文关键词:amine; CO2; reaction rate constant; sterically hindered; pKa
摘要:收集了30种伯、仲胺,5种叔胺与CO2的反应速度数据,发现胺的质子化常数(pKa)和空间位阻系数(-Es)与反应速度有密切的关系。进而建立了BP神经网络进行计算,结果证明反应速度常数k2与pKa、-Es之间有着较好的相关性。此神经网络可作为预测反应速度常数的有效工具。
The intimate connection between protonation constant(pKa), sterically hindered constant(-Es)of amine and its reaction rate with CO2 was found from the reaction rate data of 30 primary and secondary amines, 5 tertiary amines with CO2. The relationship was proved by BP Neural Net. The net could be a reliable tool for forecasting the reaction rate constant.
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