Gas-stripping Fermentation Experiment Coupled with Carrier Gas Distillation for Ethanol Production
乙醇气提发酵与载气蒸馏耦合过程实验

A new process for ethanol production is proposed in which gas stripping fermentation is coupled with carrier gas distillation. Fermentation usually needs to be operated at low temperature while distillation requires large amount of evaporation. The circulation of carbon dioxide meets both requirements and makes the coupling of fermentation with distillation possible. The feasibility of the proposed process was experimentally verified using an air-lift fermentor with a plate type distillation column on the top.