Techno-economic assessment of bio-oil produced from Eucalyptus forestry residues

Autor(es)

Iglesias, S. P. ^[1] ; Miyazaki, M. R. ^[2] ; Mariano, A. P. ^[3] ; Franco, T. T. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Sch Chem Engn, Lab Biochem Engn Biorefining & Prod Renewable Sou, Campinas, SP - Brazil

^[2] Univ Campinas UNICAMP, Sch Agr Engn, Grp GeoIntelligence Res Agr GeoIn, Campinas, SP - Brazil

^[3] Univ Campinas UNICAMP, Sch Chem Engn, Lab Optimizat Design & Adv Control LOPCA, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INDUSTRIAL CROPS AND PRODUCTS; v. 171, NOV 1 2021.
• Citações Web of Science: 0

Resumo

Forestry residue is potentially useful for obtaining bio-oil and its by-products (biochar, syngas, and acid-rich aqueous extract) via fast pyrolysis. As such, we carried out a techno-economic analysis of both the production of bio-oil from Eucalyptus grandis residues (ER) and their availability in the state of Sao Paulo, Brazil. Discounted cash flow was used to calculate the minimum selling price (MSP) of bio-oil. Georeferencing identified the location of 20 Eucalyptus plantations, ten of which were selected due to their better economic performance. These ten plantations were potentially able to produce 59 million L/year of bio-oil. The economic analysis of the future biorefineries showed that an MSP of 11.6-19.3 \$ (US)/GJ could support the processing of 60,000-5,000 tons/year of ER. A simulation of a large biorefinery revealed a capital investment (CAPEX) of around 6 M\$ (US), reaching an operating expenditure peak of approximately 3 M\$/year. The sensitivity analysis identified that plant capacity had the most significant impact on MSP, while the by-products (acid extract and biochar) lowered this by 22 %. The large biorefinery simulated using the Monte Carlo method had an 80 % chance of reaching a net present value (NPV) > 0, and an 80 % probability of reaching an internal rate of return (IRR) > 10 %. This study demonstrated that the production of bio-oils by the ten simulated centralized biorefineries is economically viable based on the NPV and IRR indicators. (AU)

• Processo FAPESP: 15/50612-8 - An integrated approach to explore a novel paradigm for biofuel production from lignocellulosic feedstocks
• Beneficiário: Telma Teixeira Franco
• Modalidade de apoio: Auxílio à Pesquisa - Temático