RT info:eu-repo/semantics/article
T1 Ectoine production from biogas in waste treatment facilities: A techno-economic and sensitivity analysis
A1 Pérez Martínez, Víctor
A1 Moltó, Jose Luis
A1 Lebrero Fernández, Raquel
A1 Muñoz Martínez, Raquel
K1 Biogas valorization
K1 Valorización de biogás
K1 Ectoine
K1 Ectoína
K1 Sensitivity analysis
K1 Análisis de sensibilidad
AB 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.
PB ACS Publications
SN 2168-0485
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/51665
UL https://uvadoc.uva.es/handle/10324/51665
LA eng
NO ACS Sustainable Chemistry & Engineering, 2021, vol. 9, n. 51. p. 17371-17380
NO Producción Científica
DS UVaDOC
RD 24-nov-2024