Optimization and Analysis of Operation of Vapor Phase Methanol to Dimethyl Ether in Small Reactor
By conducting high-temperature hot state experiments on the gas-phase methanol catalytic synthesis of dimethyl ether in a small-scale reactor,the variation law of reaction temperature and methanol mass space velocity on the axial temperature distribution of the catalyst bed was investigated.At the same time,the influence of different operating conditions on methanol conversion rate and dimethyl ether selectivity was analyzed,in order to optimize the operating parameters of the small-scale reactor.The research results show that when the mass space velocity of methanol is 1 h-1,under different reaction temperature conditions,the catalyst bed will experience an axial adiabatic temperature rise of about 1.7～2.9℃,and the hot spot temperature of the catalyst bed will be close to the central position of the catalyst bed axis.When the reaction temperature is 250℃and the methanol mass space velocity is 1 h-1,the axial temperature distribution curve of the catalyst bed is relatively smooth,and the methanol conversion rate and dimethyl ether yield are both high.Therefore,a reaction temperature of 250℃and a methanol mass space velocity of 1 h-1 can be considered as the optimal operating conditions for this small-scale reaction.
NETL
NSTL
万方数据
维普
