Journal of Fundamentals of Renewable Energy and Applications

Journal of Fundamentals of Renewable Energy and Applications
Open Access

ISSN: 2090-4541

+44 1300 500008

Exergy analysis of thermochemical and biochemical pathways for bioethanol production


International Congress and Expo on Biofuels & Bioenergy

August 25- 27, 2015 Valencia, Spain

Pablo Andres Silva Ortiz

Posters-Accepted Abstracts: J Fundam Renewable Energy Appl

Abstract :

Future biomass conversion systems have to be developed using advanced conversion routes in order to compete with fossil
fuels. An attractive biomass feedstock for bioethanol production is lignocellulosic biomass, particularly various agricultural
and forest residues, such as sugarcane bagasse, which are available in large amounts. Lignocellulosic biomass can be converted
into bioethanol using biochemical route, including pretreatment processes followed by hydrolysis of cellulose and hemicellulose
into sugars and their subsequent fermentation. On the other hand, the thermochemical route can also be applied to bioethanol
production, in which biomass gasification represents a pathway for the production of variety of biofuels, including ethanol,
methanol, dimethyl ether, Fischer-Tropsch (F-T) fuels, hydrogen and Synthetic Natural Gas (SNG). However, although
biochemical or thermochemical routes are promising technological options due to their large-scale production of lignocellulosic
ethanol, they are still to be further developed to achieve commercial outcomes. In this work, a detailed exergy analysis of the
biochemical and thermochemical conversion routes for bioethanol production from sugarcane bagasse is presented. In addition,
a performance comparison in terms of exergy efficiency and destroyed exergy rate of each stage involved in these routes is
determined. Hence, in an effort to compare these technological routes, the simulation processes were performed using Aspen
Plus® software to a plant with 500 t/h milling capacity.

Biography :

Pablo A. Silva Ortiz has a BS in Energy Engineering from the Universidad Autonóma de Bucaramanga-UNAB (2006) in Colombia. He also has an MS in Mechanical
Engineering from the Universidade Federal de Itajubá-UNIFEI (2011) in Brazil. Currently, he is a pursuing PhD in Mechanical Engineering at the Universidade de São
Paulo-USP in Brazil. He is working on the research project entitled “Exergy and environmental ranking of bioethanol production routes”.

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