Continuous design and economic analysis of a Sargassum muticum biorefinery process.

Autor: Caxiano IN; SENAI Innovation Institute for Biosynthetics and Fibers, Cidade Universitária - Ilha do Fundão, Rio de Janeiro/RJ 21941-857, Brazil., Mello PA; SENAI CETIQT College, Rua Magalhães de Castro, 174, Riachuelo, Rio de Janeiro/RJ 20961-020, Brazil., Alijó PHR; Department of Physical Chemistry, Institute of Chemistry, Rio de Janeiro State University (UERJ), Rio de Janeiro /RJ 20550-900, Brazil. Electronic address: pedroalijo@gmail.com., Teixeira LV; SENAI Innovation Institute for Biosynthetics and Fibers, Cidade Universitária - Ilha do Fundão, Rio de Janeiro/RJ 21941-857, Brazil; School of Chemistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro/RJ 21941-901, Brazil., Cano RF; SENAI Innovation Institute for Biosynthetics and Fibers, Cidade Universitária - Ilha do Fundão, Rio de Janeiro/RJ 21941-857, Brazil; Glycobiology Program, Institute of Medical Biochemistry (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro/RJ 21941-902, Brazil., Maia JGSS; SENAI Innovation Institute for Biosynthetics and Fibers, Cidade Universitária - Ilha do Fundão, Rio de Janeiro/RJ 21941-857, Brazil., Bastos JBV; SENAI Innovation Institute for Biosynthetics and Fibers, Cidade Universitária - Ilha do Fundão, Rio de Janeiro/RJ 21941-857, Brazil; School of Chemistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro/RJ 21941-901, Brazil., Pavão MSG; Glycobiology Program, Institute of Medical Biochemistry (IBqM), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro/RJ 21941-902, Brazil.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2022 Jan; Vol. 343, pp. 126152. Date of Electronic Publication: 2021 Oct 23.
DOI: 10.1016/j.biortech.2021.126152
Abstrakt: This work assesses scale effects in designing a biorefinery from Sargassum muticum seaweed by applying a detailed process modeling methodology. Two process conversion units were simulated: one considering anaerobic digestion steps for producing biogas and generating electricity (base project), and the other with residual seaweed solids sold as fertilizer (alternative project). A comprehensive economic analysis was performed to estimate the minimum selling price of the process's main product (fucoidan extract). Results indicated that capital expenditures are up to 12.7% times higher in the base project. Minimum selling prices of the fucoidan extract product demonstrate the biorefinery's economies of scale for both projects. Seaweed's low methane potential reduces the economic attractiveness of electricity generation from biogas in the base project. Conversely, organic fertilizer price was more influential in the alternative project. Nonetheless, risk analyses show similar results for both scenarios, mainly due to fucoidan extract selling price and CAPEX estimates uncertainties.
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Databáze: MEDLINE
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