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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

ecarbonizing ethanol production via gas fermentation: Impact of the CO/H-2/CO2 mix source on greenhouse gas emissions and production cost

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Author(s):
Benalcazar, Eduardo Almeida [1, 2] ; Noorman, Henk [2, 3] ; Maciel Filho, Rubens [1] ; Posada, John A. [2]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Fac Chem Engn, Dept Prod & Proc Dev, Av Albert Einstein 500, BR-13083852 Campinas, SP - Brazil
[2] Delft Univ Technol, Fac Appl Sci, Dept Biotechnol, Van der Maasweg 9, NL-2629 HZ Delft - Netherlands
[3] DSM Biotechnol Ctr, A Fleminglaan 1, NL-2613 AX Delft - Netherlands
Total Affiliations: 3
Document type: Journal article
Source: Computers & Chemical Engineering; v. 159, MAR 2022.
Web of Science Citations: 0
Abstract

This study explores key success factors for ethanol production via fermentation of gas streams, by assessing the effects of eight process variables driving the fermentation performance on the production costs and greenhouse gas emissions. Three fermentation feedstocks are assessed: off-gases from the steel industry, lignocellulosic biomass-derived syngas and a mixture of H-2 and CO2. The analysis is done through a sequence of (i) sensitivity analyses based on stochastic simulations and (ii) multi-objective optimizations. In economic terms, the use of steel off-gas leads to the best performance and the highest robustness to low mass transfer coefficients, low microbial tolerance to ethanol, acetic-acid co-production and to dilution of the gas feed with CO2, due to the relatively high temperature at which the gas feedstock is available. The ethanol produced from the three feedstocks lead to lower greenhouse gas emissions than fossil-based gasoline and compete with first and second generation ethanol. (C) 2022 The Authors. Published by Elsevier Ltd. (AU)

FAPESP's process: 15/20630-4 - Biorefinery development integrated to a bioethanol sugar cane plant with zero CO2 emission: routes to convert renewable resources to bio-products and bio-electricity
Grantee:Rubens Maciel Filho
Support Opportunities: Research Projects - Thematic Grants