|
Thesis step synthesis of dimethyl ether , reaction kinetics , the experimental determination of dimethyl ether synthesis kinetic data and fitting out of the one-step synthesis of dimethyl ether kinetic equation . Step synthesis of dimethyl ether slurry bed reactor mathematical model , taking into account the liquid back-mixing catalyst particle sedimentation reaction results in the simulation based on the reaction pressure , reaction temperature , feed airspeed feed gas composition on the reaction . The calculation results show that different H2/CO conditions , the CO conversion rate and selectivity of dimethyl ether with increasing temperature , the pressure increases to improve ; under certain temperature and pressure conditions , CO conversion rate of the raw material gas inlet empty speed decreases ; synthesis gas containing a certain amount of CO2 is conducive to an increase in the CO conversion rate , improve the H2 concentration conducive to the conversion of CO and dimethyl ether generated . The production should be an appropriate increase in the reaction temperature and pressure and feed gas H2 content appropriate airspeed . Reactor simulation based on an annual output of 100,000 tons of dimethyl ether as the goal , the establishment of the reactor , absorber, pre - distillation column , distillation column of dimethyl ether , methanol recovery distillation column as the main operating unit process , one-step synthesis of dimethyl ether process simulation and optimization of operating conditions , the plate number and the product flow and purity , optimum process operation , dimethyl ether with an annual output 108,400 tons , byproduct methanol 19400 tons.
|