石油化工2013，Vol.42Issue(1)：53-58,6.
乙醇脱水固定床反应器数值模拟的研究
Numerical Simulation of Fixed-Bed Reactor for Ethanol Dehydration
摘要
Abstract
The numerical simulation of ethanol dehydration in a φ 50 mm x 500 mm fixed-bed reactor was carried out by means of the computational fluid dynamics software Fluent and the porous media model, and experiments were conducted to verify the simulation results. The results showed that the radial temperature difference in the upper catalyst bed, which was the main area where the dehydration took place, was remarkable and the maximum temperature difference reached 50 ℃. In the reactor, the high temperature area is suitable for the generation of ethylene, whereas the low temperature area is advantageous to the formation of ether. Under the conditions of 400 ℃ and WHS V 1.0 h-1, the maximum deviation between the simulation values and experimental values of the temperature distribution was not more than 10 ℃ , the simulation value and experimental value of the ethylene selectivity at the reactor exit were 98.6% and 96.9%, respectively, and the relative error of the ethylene selectivity was only 1.8%.关键词
氧化铝/乙醇脱水/乙烯/数值模拟/固定床反应器Key words
alumina/ ethanol dehydration/ ethylene/ numerical simulation/ fixed-bed reactor分类
化学化工引用本文复制引用
赵伟,初旭铭,贾忱,韩毓旺,陈良勇,胡燚..乙醇脱水固定床反应器数值模拟的研究[J].石油化工,2013,42(1):53-58,6.基金项目
材料化学工程国家重点实验室自主研究课题重点项目(ZK200815) （ZK200815）
中国石化科技开发项目(L411003). （L411003）
