期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
侧线精馏塔高效分离二甲醚-甲醇-水的稳态模拟与动态控制研究 被引量:3
1
作者 高勇 亢玉红 +3 位作者 贺贝贝 李健 闫龙 马亚军 《现代化工》 CAS CSCD 北大核心 2018年第3期214-217,共4页
利用Aspen Plus模拟软件对二甲醚-甲醇-水分离过程中的侧线精馏塔进行稳态研究,在设计规定下对侧线精馏塔的设计与操作参数进行确定与优化,最终获得侧线精馏塔的理论板数为52块,最佳进料位置为第32块塔板,侧线出料位置为第12块塔板,回... 利用Aspen Plus模拟软件对二甲醚-甲醇-水分离过程中的侧线精馏塔进行稳态研究,在设计规定下对侧线精馏塔的设计与操作参数进行确定与优化,最终获得侧线精馏塔的理论板数为52块,最佳进料位置为第32块塔板,侧线出料位置为第12块塔板,回流比为41,灵敏板为第3块塔板。通过Aspen Dynamics考察了进料流量扰动(±5%)和进料组成扰动(±5%)的工况下,侧线精馏塔采出的产品纯度、灵敏板温度、采出量、再沸器热负荷等参数均可达到平衡,恢复至设定值,模拟结果说明侧线精馏塔的控制方案有效可行。 展开更多
关键词 二甲醚-甲醇-水 侧线精馏塔 稳态模拟 动态控制
下载PDF
Experimental Study and Modeling of an Adiabatic Fixed-bed Reactor for Methanol Dehydration to Dimethyl Ether 被引量:2
2
作者 M. Fazlollahnejad M. Taghizadeh +1 位作者 A. Eliassi G.Bakeri 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2009年第4期630-634,共5页
One-dimensional heterogeneous plug flow model was employed to model an adiabatic fixed-bed reactor for the catalytic dehydration of methanol to dimethyl ether.Longitudinal temperature and conversion profiles predicted... One-dimensional heterogeneous plug flow model was employed to model an adiabatic fixed-bed reactor for the catalytic dehydration of methanol to dimethyl ether.Longitudinal temperature and conversion profiles predicted by this model were compared to those experimentally measured in a bench scale reactor.The reactor was packed with 1.5mm γ-Al2O3 pellets as dehydration catalyst and operated in a temperature range of 543-603K at an atmospheric pressure.Also,the effects of weight hourly space velocity(WHSV)and temperature on methanol conversion were investigated.According to the results,the maximum conversion is obtained at 603.15K with WHSV of 72.87h-1. 展开更多
关键词 METHANOL dimethyl ether MODELING fixed-bed reactor
下载PDF
Study on Synergy Effect in Dimethyl Ether Synthesis from Syngas 被引量:5
3
作者 王志良 刁杰 +2 位作者 王金福 金涌 X.D.PENG 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2001年第4期412-416,共5页
Influence of reaction temperature, pressure and space velocity on the direct synthesis of dimethyl ether (DME) from syngas is studied in an isothermal fixed-bed reactor. The catalyst is a physical mixture of C301 copp... Influence of reaction temperature, pressure and space velocity on the direct synthesis of dimethyl ether (DME) from syngas is studied in an isothermal fixed-bed reactor. The catalyst is a physical mixture of C301 copper-based methanol (MeOH) synthesis catalyst and ZSM-5 dehydration catalyst. The experimental results show that the chemical synergy between methanol synthesis reaction and methanol dehydration reaction is evident. The conversion of carbon monoxide is over 90%. 展开更多
关键词 dimethyl ether chemical synergy methanol dehydration SYNGAS
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部