2026-04-14T19:23:33Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/516652025-02-18T08:53:10Zcom_10324_1173com_10324_931com_10324_894col_10324_1371

Pérez Martínez, Victor Moltó, Jose Luis Lebrero Fernández, Raquel Muñoz Martínez, Raquel 2021 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. application/pdf https://uvadoc.uva.es/handle/10324/51665 eng ACS Publications Ectoine production from biogas in waste treatment facilities: A techno-economic and sensitivity analysis info:eu-repo/semantics/article TEXT UVaDOC. Repositorio Documental de la Universidad de Valladolid Hispana