Modeling and Optimization of Catalytic Dehydration of Ethanol to Ethylene Using Central Composite Design

作     者：孔海宁 齐二石 李钢 何曙光 张宪 KONG Haining1,QI Ershi 1,LI Gang 1,HE Shuguang 1,ZHANG Xian 2(1.School of Management,Tianjin University,Tianjin 300072,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)

作者机构：School of ManagementTianjin University School of Chemical Engineering and TechnologyTianjin University 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2009年第15卷第5期

页      面：366-370页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Supported by National Natural Science Foundation of China(No.70671072) 

主　　题：central composite design catalytic dehydration of ethanol ethylene yield modeling optimization 

摘      要：The central composite design in the modeling and optimization of catalytic dehydration of ethanol to ethylene was performed to improve the ethylene yield.A total of 20 experiments at random were conducted to investigate the effect of reaction temperature,Si/Al ratios of H-ZSM-5 catalyst and liquid hourly space velocity(LHSV) on the ethylene *** results show that the relationship between ethylene yield and the three significant independent variables can be approximated by a nonlinear polynomial model,with R-squared of 99.9%and adjusted R-squared of 99.8%.The maximal response for ethylene yield is 93.4%under the optimal condition of 328 ℃,Si/Al ratio 85,and LHSV 3.8 h-1.