Dehydration cost of ethanol molecular sieve

The dehydration cost of ethanol molecular sieve is 50%. Ethanol production is a process with high energy consumption, and 50% of the cost is spent on ethanol rectification and dehydration. Canada's Vaperma Company developed a membrane system, which can complete the same process and reduce energy consumption by 50%. Traditional processes such as distillation or molecular sieve adsorption are used for ethanol dehydration, which are more or less insufficient in traditional processes. Such as distillation process, if the energy consumption is high and the throughput is large, the annual operating cost will be high. Molecular sieve adsorption process has limited adsorption capacity and low yield, and the yield can reach 90%, which is already excellent. In view of these shortcomings, the emergence of pervaporation membrane separation equipment is undoubtedly the gospel of solvent dehydration separation. Under the condition of treating the same tonnage and the same treatment requirements, the energy consumption of pervaporation membrane process is 50%~80% less than that of distillation, and the yield can generally reach over 98%.