| Texto completo | |
| Autor(es): |
Longati, Andreza Aparecida
;
Campani, Gilson
;
Furlan, Felipe Fernando
;
Giordano, Roberto de Campos
;
Miranda, Everson Alves
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF CLEANER PRODUCTION; v. 379, p. 11-pg., 2022-10-27. |
| Resumo | |
Biodiesel and bioethanol play an important role as renewable liquid fuels. Bagasse, a by-product from the bioethanol industry, can generate a "sugarcane bagasse hemicellulose hydrolysate" (SCBH) that contains fermentable sugars, mainly xylose. Oleaginous yeasts (eg., Rhodotorula toruloides) can grow in SCBH, producing microbial oil (MO), a source of triacylglycerol for biodiesel production. The integration of bioethanol and biodiesel (from MO) production may be a promising approach in order to exploit synergies between bioethanol and biodiesel processes within a biorefinery. This integration may improve the economic and environmental performance of both processes. This work presents the techno-economic-environmental analysis of the integrated production of first-generation bioethanol, bioelectricity, and biodiesel in a Brazilian sugarcane biorefinery, where MO from the yeast R. toruloides feeds the biodiesel unit. The biorefinery, processing 4.0 million t of sugarcane per harvest, produces 71.7 m3/h of bioethanol, 2.55 m3/h of biodiesel (that can replace 75.6% of the diesel demand in the field), and 86.3 MW of surplus bioelectricity. A life cycle assessment shows that the integrated biorefinery had a lower environmental impact than the first-generation bioethanol plant. The integrated process exhibits a positive economic performance (net present value of approx. 110 million of dollars and internal rate of return of about 14.5% per year, higher than the minimum acceptable rate of return, assumed as 11% per year), indicating that this is a feasible industrial option. Sensitivity analysis shows that R&D should mainly focus on the MO bioreactor operation. (AU) | |
| Processo FAPESP: | 18/09692-6 - Análise Tecno-Econômico-Ambiental Reversa da produção de carotenoides e óleo microbiano pela levedura oleaginosa Rhodotorula toruloides a partir da fração hemicelulósica de bagaço de cana integrada à biorrefinaria biodiesel-bioetanol (1G-2G) |
| Beneficiário: | Gilson Campani Junior |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |
| Processo FAPESP: | 19/15851-2 - Análise tecno-econômico-ambiental reversa da produção de carotenóides e óleo microbiano pela levedura oleaginosa Rhodotorula toruloides a partir da fração hemicelulósica de bagaço de cana integrada à biorrefinaria biodiesel-bioetanol (1G-2G) |
| Beneficiário: | Andreza Aparecida Longati de Oliveira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |