羰基硫催化水解反应机理及动力学研究  

REACTION MECHANISM AND KINETICS OF CATALYTIC HYDROLYSIS CARBONYL SULFIDE

作　　者：袁辉志[1] 周兰慧 刘爱华[1] 刘剑利[1] 刘增让[1] 徐翠翠[1] Yuan Huizhi;Zhou Lanhui;Liu Aihua;Liu Jianli;Liu Zengrang;Xu Cuicui(SINOPEC Research Institute of Qilu Brunch Co.,Ltd.,Zibo,Shandong 255400;State Key Laboratory of Heavy Oil Processing,China University of Petroleum)

机构地区：[1]中国石化齐鲁分公司研究院,山东淄博255400 [2]中国石油大学(华东)重质油国家重点实验室

出　　处：《石油炼制与化工》2022年第9期65-71,共7页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(121035-2)。

摘　　要：对LS-05催化剂上羰基硫(COS)水解反应的机理及反应动力学进行了研究。考察了COS、H_(2)S在LS-05催化剂上常温吸附、程序升温脱附及发生表面反应过程中反应物和产物的质谱信号强度变化,分析COS催化水解反应机理;同时,通过调变COS水解反应温度和反应物浓度,得到一系列反应动力学数据,进而建立相应的反应速率方程,分析COS在催化剂上的反应过程。结果表明:羰基硫水解反应符合Langmuir-Hinshelwood(L-H)机理,模型回归方程的决定系数R2=0.998,回归结果与试验数据的误差在10%以内,说明所建的动力学模型具有较高的相关性和准确性。The reaction mechanism and kinetics of carbonyl sulfide(COS)hydrolysis on LS-05 catalyst were studied.The mass spectrum(MS)signal intensity changes of reactants and different products during the room-temperature adsorption,temperature programmed desorption and surface reaction of COS and H_(2)S on the catalyst were investigated,and the mechanism of catalytic hydrolysis of COS was analyzed.By adjusting the reaction temperature and reactant concentration,a series of kinetic data were obtained,and then the corresponding reaction rate equation was established to analyze the reaction process of COS on the catalyst.The results showed that COS hydrolysis accorded with Langmuir-Hinshelwood(L-H)mechanism.The determination coefficient R2 of the model regression equation was 0.998,and the error between the regression result and the experimental data was less than 10%,which indicated that the regression results of the model had a high correlation with the experimental data.

关 键 词：羰基硫 LS-05催化剂 反应机理 动力学模型 

分 类 号：TE644[石油与天然气工程—油气加工工程]