石油化工高等学校学报2025，Vol.38Issue(2)：72-80,9.DOI:10.12422/j.issn.1006-396X.2025.02.009
基于响应面法的Pt基催化剂上丙烷脱氢工艺条件优化
Optimization of Propane Dehydrogenation Process Conditions over Pt-Based Catalyst Based on Response Surface Methodology
摘要
Abstract
The propane dehydrogenation reaction is thermodynamically unfavorable,tnecessitating kinetic control through optimized process conditions.Single-factor experiments and multi-factor Response Surface Methodology(RSM)were employed to analyze and optimize propane dehydrogenation conditions over a PtSnK/Al₂O₃ catalyst,followed by experimental verification.First,single-factor experiments determined the range of values for the factors to be studied in the response surface methodology.Then,a Box-Behnken design with three factors(reaction temperature,space velocity,and hydrogen-hydrocarbon ratio)was used to optimize the reaction conditions of propane dehydrogenation by multifactor response surface methodology with propylene selectivity as the response value,and finally,the optimized process conditions were experimentally verified.Results indicated that the optimal reaction temperature,VHSV,and H₂/C₃H₈ molar ratio were 605℃,2 200 h⁻¹,and 0.6,respectively.The theoretical propylene selectivity prediction under these conditions was 93.01%.The order of influence weight from largest to smallest was reaction temperature>H₂/C₃H₈ molar ratio>VHSV.Experimental verification yielded a propylene selectivity of 93.00%and propane conversion of 32.00%.Experimental determination of propylene selectivity is consistent with RSM predictions,confirming the model's reliability and credibility.关键词
催化剂/丙烷脱氢/工艺条件/选择性/响应面法Key words
Catalysts/Propane dehydrogenation/Process conditions/Selectivity/Response surface methodology分类
化学化工引用本文复制引用
朴茜琳,万海,迟昊天,张海娟..基于响应面法的Pt基催化剂上丙烷脱氢工艺条件优化[J].石油化工高等学校学报,2025,38(2):72-80,9.基金项目
辽宁省联合基金资助项目(U1908203) （U1908203）
辽宁省教育厅面上项目(JYTMS20231438). （JYTMS20231438）
