摘要
以抽余油中代表性化合物正己烷为模型化合物,进行了正己烷耦合甲醇芳构化反应热力学计算。结果表明:正己烷耦合甲醇芳构化反应体系中,甲醇芳构化和芳烃甲基化反应是放热反应,而正己烷芳构化反应为吸热反应,反应中存在热量耦合互补;甲醇芳构化反应较正己烷芳构化反应更易发生,甲醇及正己烷裂解反应,正己烷加氢生成戊烯的反应均不能自发进行,甲醇可自发生成乙烯和丙烯;升高反应温度可促进初始C—C的生成。
Thermodynamic calculation of aromatics reaction of n-hexane coupled methanol was investigated with n-hexane as model compound. The results showed that in aromatics reaction of n-hexane coupled methanol,the reaction of methanol aromatization and aromatic methylation were exothermic reaction, the n-hexane aromatization reaction was endothermic reaction, thermal coupling and complementation took place in the reaction. The aromatization reaction of methanol was more likely to occur than that of n-hexane, the pyrolysis reaction of methanol and n-hexane, the hydrogenation reaction of n-hexane to pentene could not occur spontaneously, while methanol could produce ethylene and propylene spontaneously, and the initial C—C increased with the reaction temperature.
作者
魏书梅
夏刚
徐亚荣
朱学栋
WEI Shu-mei;XIA Gang;XU Ya-rong;ZHU Xue-dong(Research Institute of Urumqi Petrochemical Company,PetroChina,Urumqi 830019,China;UNILAB,State Key Laboratory of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China)
出处
《石化技术与应用》
CAS
2023年第1期13-19,共7页
Petrochemical Technology & Application
基金
中国石油天然气股份有限公司科技部资助项目(项目编号:2016-24308)。
关键词
轻烃
甲醇
芳构化
热力学
焓变
熵变
raffinate oil
methanol
aromatics
thermodynamic
enthalpy change
entropy change
