EVALUATION OF ENERGY INTEGRATION OF A BIOREFINERY AIMING FOR THE PRODUCTION OF SECOND GENERATION ETHANOL USING PINCH ANALYSIS
Second generation ethanol, energy, pinch analysis, biorefinery
The use of sugarcane bagasse for the production of second-generation ethanol is a viable alternative for the destination of bagasse that is not all used within a sugarcane plant, as it adds value to this residue. About 280.33kg/h of sugarcane bagasse generates a total of 886.23kg of ethanol after
12 hours of operation. With the addition of heat exchangers in the second generation ethanol production flowchart proposed in this work, it was possible to reduce the consumption of hot and cold utilities by 23.60% and 48.84%,
respectively. With the reduction of utilities, production costs and environmental impacts are also reduced, making production more advantageous when compared to production in which there is no heat exchanger
present to help preheat or pre-cool system equipment.