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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.)

Techno-economic assessment of bioenergy and biofuel production in integrated sugarcane biorefinery: Identification of technological bottlenecks and economic feasibility of dilute acid pretreatment

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Author(s):
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Vasconcelos, Marcelo Holanda [1, 2] ; Mendes, Fernanda Machado [3] ; Ramos, Lucas [1] ; Dias, Marina Oliveira S. [4] ; Bonomi, Antonio [3] ; Jesus, Charles Dayan F. [3] ; Watanabe, Marcos Djun B. [3] ; Junqueira, Tassia Lopes [3] ; Milagres, Adriane Maria F. [1] ; Ferraz, Andre [1] ; dos Santos, Julio Cesar [1]
Total Authors: 11
Affiliation:
[1] Univ Sao Paulo, Dept Biotecnol, Escola Engn Lorena, BR-12602810 Lorena, SP - Brazil
[2] Inst Fed Educ Ciencia & Tecnol Rondonia IFRO, BR-76850000 Guajara Mirim, Rondonia - Brazil
[3] CNPEM, Lab Nacl Biorrenovaveis LNBR, BR-13083970 Campinas, SP - Brazil
[4] Univ Fed Sao Paulo, Inst Ciencia & Tecnol, UNIFESP, BR-12247014 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ENERGY; v. 199, MAY 15 2020.
Web of Science Citations: 0
Abstract

Techno-economic analysis of first- and second-generation (1G2G) integrated sugarcane biorefinery producing ethanol and electricity was performed, exploring the virtues and limitations of dilute acid pretreatment. Process variables such as solid content in the pretreatment reactor, enzymatic hydrolysis time, and the possibility of pentose fermentation were pondered using computational tools and simulation platforms to assess the impacts of the variables overall production chain. Previously published data reporting optimal pretreatment conditions applied to a leading sugarcane hybrid were considered in the simulation studies. Better economic returns were obtained using the lowest solids content in the pretreatment reactor, the shortest incubation time in the enzymatic hydrolysis step, as well as the use of the pentose stream to produce additional ethanol. Process profitability was mostly affected by sugarcane cost, followed by capital costs associated with investment, and input chemicals costs. Finally, this study indicates that the economic benefits do not only depend on achievement of high final product yields, but also on a set of industrial factors, demonstrating the suitability of process simulation to point out industrial bottlenecks deserving future research. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/10756-0 - Development of biorefinery models using experimental sugarcane hybrids and energy cane with different pretreatment methods
Grantee:Fernanda Machado Mendes Carvalho
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 14/06923-6 - Sugar cane biomass recalcitrance: basic knowledge related to the cell wall construction, pretreatment and enzymatic digestion, applied for the development of innovative biorefinery models
Grantee:Andre Luis Ferraz
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants