Integrated versus stand-alone second generation ethanol production from sugarcane bagasse and trash.

Ethanol production from lignocellulosic materials is often conceived considering independent, stand-alone production plants; in the Brazilian scenario, where part of the potential feedstock (sugarcane bagasse) for second generation ethanol production is already available at conventional first generation production plants, an integrated first and second generation production process seems to be the most obvious option. In this study stand-alone second generation ethanol production from surplus sugarcane bagasse and trash is compared with conventional first generation ethanol production from sugarcane and with integrated first and second generation; simulations were developed to represent the different technological scenarios, which provided data for economic and environmental analysis. Results show that the integrated first and second generation ethanol production process from sugarcane leads to better economic results when compared with the stand-alone plant, especially when advanced hydrolysis technologies and pentoses fermentation are included.

[1]  U. Tschirner,et al.  Improved pretreatment of lignocellulosic biomass using enzymatically-generated peracetic acid. , 2011, Bioresource technology.

[2]  J. Seabra,et al.  Green house gases emissions in the production and use of ethanol from sugarcane in Brazil: the 2005/2006 averages and a prediction for 2020. , 2008 .

[3]  Silvia A. Nebra,et al.  Improving bioethanol production from sugarcane: evaluation of distillation, thermal integration and , 2011 .

[4]  Ignacio E. Grossmann,et al.  Energy, water and process technologies integration for the simultaneous production of ethanol and food from the entire corn plant , 2011, Comput. Chem. Eng..

[5]  R. M. Filho,et al.  Second generation ethanol in Brazil: can it compete with electricity production? , 2011, Bioresource technology.

[6]  Ignacio E. Grossmann,et al.  Energy, Water and Process Technologies Integration for the Simultaneous Production of Ethanol and Food from the entire Corn Plant , 2011 .

[7]  B. Stanmore.  Generation of Energy from Sugarcane Bagasse by Thermal Treatment , 2010 .

[8]  Christopher J. Brown,et al.  Simulation of pressure swing adsorption in fuel ethanol production process , 2008, Comput. Chem. Eng..

[9]  Ignacio E. Grossmann,et al.  Energy optimization for the design of corn‐based ethanol plants , 2008 .

[10]  F M Gírio,et al.  Hemicelluloses for fuel ethanol: A review. , 2010, Bioresource technology.

[11]  V. Putsche,et al.  Development of an ASPEN PLUS physical property database for biofuels components , 1996 .

[12]  David D. Hsu,et al.  Techno-economic comparison of process technologies for biochemical ethanol production from corn stover , 2010 .

[13]  Jeroen B. Guinee,et al.  Handbook on life cycle assessment operational guide to the ISO standards , 2002 .

[14]  M. Ballesteros,et al.  Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review. , 2010, Bioresource technology.

[15]  Ling Tao,et al.  The economics of current and future biofuels , 2009, In Vitro Cellular & Developmental Biology - Plant.

[16]  H. Chum,et al.  A techno-economic evaluation of the effects of centralized cellulosic ethanol and co-products refinery options with sugarcane mill clustering , 2010 .

[17]  G. Cornacchia,et al.  Energy Recovery from Sugarcane-Trash in the Light of 2nd Generation Biofuels. Part 1: Current Situation and Environmental Aspects , 2011 .

[18]  Krist V. Gernaey,et al.  Biorefining: Computer aided tools for sustainable design and analysis of bioethanol production , 2009 .

[19]  J. Görgens,et al.  Comparing biological and thermochemical processing of sugarcane bagasse: an energy balance perspective. , 2011 .

[20]  Harro von Blottnitz,et al.  2nd Generation biofuels a sure bet? A life cycle assessment of how things could go wrong , 2011 .

[21]  Huajiang Huang,et al.  Effect of biomass species and plant size on cellulosic ethanol: A comparative process and economic analysis , 2009 .

[22]  Rubens Maciel Filho,et al.  Simulation of integrated first and second generation bioethanol production from sugarcane: comparison between different biomass pretreatment methods , 2011, Journal of Industrial Microbiology & Biotechnology.

[23]  A. R. Gonçalves,et al.  Steam explosion pretreatment reproduction and alkaline delignification reactions performed on a pilot scale with sugarcane bagasse for bioethanol production. , 2012 .

[24]  Joaquim E. A. Seabra,et al.  Comparative analysis for power generation and ethanol production from sugarcane residual biomass in Brazil , 2011 .

[25]  Walter Klöpffer,et al.  Life cycle assessment , 1997, Environmental science and pollution research international.

[26]  Karina A. Ojeda,et al.  Evaluation of technological alternatives for process integration of sugarcane bagasse for sustainable biofuels production—Part 1 , 2011 .

[27]  Anoop Singh,et al.  Production of liquid biofuels from renewable resources , 2011 .

[28]  Luis M. Serra,et al.  Analysis of process steam demand reduction and electricity generation in sugar and ethanol production from sugarcane , 2007 .

[29]  R. M. Filho,et al.  Production of bioethanol and other bio-based materials from sugarcane bagasse: Integration to conventional bioethanol production process , 2009 .

[30]  Hans-Jürgen Dr. Klüppel,et al.  The Revision of ISO Standards 14040-3 - ISO 14040: Environmental management – Life cycle assessment – Principles and framework - ISO 14044: Environmental management – Life cycle assessment – Requirements and guidelines , 2005 .

[31]  I. Grossmann,et al.  Energy optimization of bioethanol production via hydrolysis of switchgrass , 2012 .

[32]  Hans-Jürgen Dr. Klüppel,et al.  ISO 14041: Environmental management — life cycle assessment — goal and scope definition — inventory analysis , 1998 .