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Process simulation and techno-economic assessment for direct production of advanced bioethanol using a genetically modified Synechocystis sp.
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Orientador(es)
Resumo(s)
ABSTRACT: A techno-economic assessment for the direct production of ethanol using a genetically-modified microalgae has been studied. It was considered two main scenarios for process modelling: i) bioenergy-driven microalgae plant, i.e., focused on the production of fuel-grade ethanol and biogas for CHP and, ii) biorefinery-driven microalgae plant, focused on the recovery of added-value bioproducts (zeaxanthin and phycocyanin) along with ethanol and
CHP production. These main scenarios and several variants were modelled and optimized for a small-scale demo plant of 1000 Lethanol/day and extrapolated for larger production capacities. Results showed that despite the innovative approach of direct production of ethanol by microalgae, the bioenergy-driven scenario is non-feasible under the studied conditions. Conversely, ethanol production becomes economically feasible as co-product in the biorefinery-driven scenario although having payback periods>10 years. Furthermore, if only bio-based products are produced the NPV and the payback are even more positive, 104.8 M€ and ca. 5 years, respectively.
Descrição
Palavras-chave
Microalgae Biorefinery Bioethanol Modelling Biofuels
Contexto Educativo
Citação
Lopes, Tiago F... [et.al.] - Process simulation and techno-economic assessment for direct production of advanced bioethanol using a genetically modified Synechocystis sp. In: Bioresource Technology Reports, 2019, Vol. 6, p. 113-122
Editora
Elsevier