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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biochemical conversion of sugarcane bagasse into the alcohol fuel mixture of isopropanol-butanol-ethanol (IBE): Is it economically competitive with cellulosic ethanol?

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Silva Dantas, Ercilia Regina [1] ; Bonhivers, Jean-Christophe [1] ; Maciel Filho, Rubens [1] ; Mariano, Adriano Pinto [1]
Total Authors: 4
[1] Univ Campinas UNICAMP, Sch Chem Engn, Fermentat Div LOPCA Ferm, Lab Optimizat Design & Adv Control, Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Bioresource Technology; v. 314, OCT 2020.
Web of Science Citations: 4

This work presents a techno-economic analysis of the production of isopropanol, butanol, and ethanol (IBE) from sugarcane bagasse using clostridia and compares IBE with cellulosic ethanol for the minimum selling price (MSP) and sustainability aspects. The MSPs of the fuels are similar (15 USD/GJ) provided that glucose and xylose are effectively utilized in both processes, and the IBE process is equipped with a genetically-modified Clostridium species with enhanced IBE yield and a highly productive continuous bioreactor with integrated product recovery. Notably, these technologies can reduce the size (from 23 x 3785-m(3) to 3 x 3027-m(3) fermentation tanks) and the wastewater footprint (from 50 to 10 m(3)/m(3) IBE) of the IBE plant. Furthermore, given that the production of either fuel results in a similar increase in the value created by the sugarcane biorefinery and its energy efficiency, the alcohol mixture produced by clostridia is a promising alternative to the less energy-dense ethanol fuel. (AU)

FAPESP's process: 16/08791-5 - Process development and technical-economic evaluation of the butanol production by IBE (isobutanol-butanol-ethanol) fermentation
Grantee:Ercília Regina Silva Dantas
Support type: Scholarships in Brazil - Master
FAPESP's process: 15/20630-4 - Biorefinery development integrated to a bioethanol sugar cane plant with zero CO2 emission: routes to convert renewable resources to bio-products and bio-electricity
Grantee:Rubens Maciel Filho
Support type: Research Projects - Thematic Grants
FAPESP's process: 18/23983-3 - Routes for production of sugarcane-based tires: efficient conversion of sugars to 1,3-butadiene precursors and techno-economic-environmental assessment
Grantee:Adriano Pinto Mariano
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 17/27092-3 - Technoeconomic analysis of a sugarcane biorefinery with bio-based chemicals and optimized ethanol production
Grantee:Jean-Christophe Bonhivers
Support type: Scholarships in Brazil - Post-Doctorate