Comprehensive Evaluation of Fuel Ethanol Production from Poplar Wood Fermentation and its Coupled Pathway with Lignin Gasification Based on Energy-Environment-Economy

In this study, a comprehensive comparison of the poplar wood fermentation process and fermentation-coupled gasification process was carried out from energy, environmental, and economic perspectives. The process of fuel ethanol from poplar wood fermentation (Case 1) and fuel ethanol from poplar wood fermentation coupled with lignin gasification for jet fuel (Case 2) was simulated using aspen plus software. The exergy analysis showed that the exergy efficiency of Case 1 and Case 2 were 36 Fermentation to ethanol (Case 1) and its coupled pathway (Case 2) were simulated. The simulation results were analyzed in terms of energy, environment, and economy. Minimum selling price of biofuel was 0.054/MJ in Case 1 and0.055/MJ in Case 2. Case 2 has less impact on the environment than Case 1.