(548t) Anhydrous Bio-Ethanol Production: Life Cycle Analysis of Distillation and Dehydration Steps
AIChE Annual Meeting
2018 AIChE Annual Meeting
Sustainable Engineering Forum
Poster Session: Sustainability and Sustainable Biorefineries
Wednesday, October 31, 2018 - 3:30pm to 5:00pm
This paper examines the distillation and dehydration steps of a bio-ethanol production plant complementing a sugar mill. The distillation step is optimized by performing rigorous energy analysis and heat integration on the process utilizing the resources made available by the sugar mill, while pervaporation is used in the dehydration step. The user-defined module is integrated in commercial process simulators to study the environmental and energetic impact of different process configurations. Different schemes meeting equivalent performance standards in terms of purity and recovery are examined in this paper.
Particular attention is given to energetic demands as comparison metrics. Life Cycle Analysis of the optimum process configuration is further used to identify critical sources of environmental impact.