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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Product diversification in the sugarcane biorefinery through algae growth and supercritical CO2 extraction: Thermal and economic analysis

Texto completo
Autor(es):
Albarelli, Juliana Q. [1, 2] ; Santos, Diego T. [1, 2] ; Ensinas, Adriano V. [3] ; Marechal, Francois [4] ; Cocero, Maria J. [1] ; Meireles, M. Angela A. [2]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Valladolid, High Pressure Proc Grp, Dept Chem Engn & Environm Technol, Doctor Mergelina S-N, E-47005 Valladolid - Spain
[2] Univ Estadual Campinas, UNICAMP, Sch Food Engn, LASEFI DEA FEA, Cidade Univ Zeferino Vaz, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
[3] Fed Univ ABC UFABC, Ctr Engn Modeling & Social Sci CECS, Ave Estados 5001, BR-09210580 Santo Andre - Brazil
[4] Ecole Polytech Fed Lausanne, STI IGM IPESE, Stn 9, CH-1015 Lausanne - Switzerland
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: RENEWABLE ENERGY; v. 129, n. B, SI, p. 776-785, DEC 2018.
Citações Web of Science: 4
Resumo

The sugarcane sector in Brazil has undergone a major modernization in the last thirty years. Embracing the biorefinery concept, this sector is investigating bioproduct diversification and mostly putting a lot of effort and investment on second generation ethanol production. In this context, the investigation of the integration of a third generation biofuel production using microalgae to the sugarcane biorefinery seems an important starting point. This study evaluates the integration of microalgae growth and processing to a sugarcane biorefinery producing first and second generation ethanol using process simulation tools. Microalgae are cultivated using CO2 produced during fermentation of ethanol and it is processed using supercritical fluid extraction technology in order to obtain lipids rich in high added-value compounds, carotenoids. The results showed that the integration of microalgae biomass processing without previously drying with the sugarcane biorefinery is not attractive from the thermo-economic point. When considering the extraction of dried microalgae the extraction process could be thermal integrated to the sugarcane biorefinery producing ethanol without the need of buying external fuel. The amount of CO2 used as solvent to the supercritical fluid extraction was the main factor that influenced the economic viability of the process. When microalgae pretreatment by cell disruption or co-solvent extraction was considered, it was possible to decrease the amount of CO2 used in the process and an increase in process yields was consequently achieved. The use of a co-solvent in the extraction increased in 1.4 and 2.4 times lipids and carotenoids extraction, respectively, and presented a lower investment when comparing with microalgae extraction without cell disruption. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 15/13299-0 - Das sementes aos produtos finais: rotas possíveis de manufatura de Urucum aplicando intensificação e integração de processos
Beneficiário:Maria Angela de Almeida Meireles Petenate
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 15/06954-1 - Desenvolvimento de uma biorrefinaria sub/supercrítica integrada, energeticamente autossuficiente e economicamente viável com a ajuda de modelagem e simulação computacional
Beneficiário:Juliana Queiroz Albarelli
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
Processo FAPESP: 13/18114-2 - Aproveitamento integral de biomassas utilizando fluidos sub/supercríticos: avaliação de cenários tecnológicos sob ópticas ambiental, energética e econômica
Beneficiário:Juliana Queiroz Albarelli
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 12/10685-8 - Combinação/acoplamento de processos para a produção e encapsulamento de extratos vegetais de alto valor agregado: avaliação técnica e econômica
Beneficiário:Maria Angela de Almeida Meireles Petenate
Linha de fomento: Auxílio à Pesquisa - Regular