Simulation and Analysis of Reactive Dividing Wall Column for Dimethyl Ether Production
Three designs of reactive dividing wall column for the dimethyl ether production were put forward.The simulations of conventional reactive distillation and reactive dividing wall column designs were performed using process simulator Aspen Plus.Three kinds of reaction rectification adjacent columns were designed according to whether the upper and lower right sides of the partition were closed or not.The results showed that the economic and environmental indexes of the structure on the bottom cover and both sides of the partition were better than those of the conventional reactive distillation,while the economic and environmental indexes of the structure on the right side of the upper partition were lower than those of the conventional reactive distillation.Compared with the conventional reactive distillation column,when the bottom sealing structure of the partition plate was adopted,the total annual cost was reduced by 53.54%,the CO2 emission was reduced by 61.81%,and the thermodynamic efficiency was increased by 124.86%.
Reactive distillationReactive dividing wall columnEnergy savingAspen Plus simulation
万方数据
维普
