2024-03-29T11:00:14Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/516652022-02-16T13:23:55Zcom_10324_1173com_10324_931com_10324_894col_10324_1371
Ectoine production from biogas in waste treatment facilities: A techno-economic and sensitivity analysis
Pérez Martínez, Víctor
Moltó, Jose Luis
Lebrero Fernández, Raquel
Muñoz Martínez, Raquel
Biogas valorization
Valorización de biogás
Ectoine
Ectoína
Sensitivity analysis
Análisis de sensibilidad
Producción Científica
The capacity of haloalkaliphilic methanotrophic bacteria to synthesize ectoine from CH4-biogas represents an opportunity for waste treatment plants to improve their economic revenues and align their processes to the incoming circular economy directives. A techno-economic and sensitivity analysis for the bioconversion of biogas into 10 t ectoine·y–1 was conducted in two stages: (I) bioconversion of CH4 into ectoine in a bubble column bioreactor and (II) ectoine purification via ion exchange chromatography. The techno-economic analysis showed high investment (4.2 M€) and operational costs (1.4 M€·y–1). However, the high margin between the ectoine market value (600–1000 €·kg–1) and the estimated ectoine production costs (214 €·kg–1) resulted in a high profitability for the process, with a net present value evaluated at 20 years (NPV20) of 33.6 M€. The cost sensitivity analysis conducted revealed a great influence of equipment and consumable costs on the ectoine production costs. In contrast to alternative biogas valorization into heat and electricity or into low added-value bioproducts, biogas bioconversion into ectoine exhibited high robustness toward changes in energy, water, transportation, and labor costs. The worst- and best-case scenarios evaluated showed ectoine break-even prices ranging from 158 to 275 €·kg–1, ∼3–6 times lower than the current industrial ectoine market value.
Junta de Castilla y León - Fondo Europeo de Desarrollo Regional (project CLU 2017-09, UIC 315)
Junta de Castilla y León - Universidad de Valladolid (contract C18IPJCL)
European Union’s Horizon 2020 research and innovation program. grant agreement no. 837998
2022-01-24T09:04:51Z
2022-01-24T09:04:51Z
2021
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
https://doi.org/10.1021/acssuschemeng.1c06772
ACS Sustainable Chemistry & Engineering, 2021, vol. 9, n. 51. p. 17371-17380
2168-0485
https://uvadoc.uva.es/handle/10324/51665
eng
https://pubs.acs.org/doi/10.1021/acssuschemeng.1c06772
info:eu-repo/grantAgreement/EC/H2020/837998
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2021 The Authors
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ACS Publications