Integration of oxycombustion and microbial electrosynthesis for sustainable energy storage

Diego-García, R. ; Morán, A. ; Romeo Giménez, L. M. (Universidad de Zaragoza)

Resumen: Power-to-gas technology makes use of surplus electricity by its conversion and storage in the form of a gas. Currently power-to-gas schemes based on biological processes are of great interest. Microbial electrosynthesis (MES) cells are biological systems that produce biogas via microbial action and a supply of electrical energy. The OxyMES scheme proposed is a power-to-gas system that seeks to neutralize the CO2 emissions of a standard industrial process through the hybridization of oxy-fuel combustion and bioelectrochemical processes that produce CH4 (in cathode) and O2 (in anode). This oxygen is used for oxycombustion in an industrial C-fuel boiler. The energy balance analysis yielded a power-to-gas efficiency in the MES cell close to 51%, and the overall performance of the OxyMES integrated system was close to 60% for a cell with a Faradaic efficiency of 80%, CO2-to-CH4 conversion rate of 95%, and ¿Vcell = 1.63 V. With the proper sizing of the CO2, O2, and biogas process tank system, it is possible to achieve 100% autonomy, free from external feedstock supplies. © 2022 Elsevier Ltd

Idioma: Inglés

DOI: 10.1016/j.enconman.2022.116002

Año: 2022

Publicado en: ENERGY CONVERSION AND MANAGEMENT 269 (2022), 116002
ISSN: 0196-8904

Factor impacto JCR: 10.4 (2022)

Categ. JCR: ENERGY & FUELS rank: 17 / 119 = 0.143 (2022) - Q1 - T1
Categ. JCR: THERMODYNAMICS rank: 2 / 63 = 0.032 (2022) - Q1 - T1
Categ. JCR: MECHANICS rank: 3 / 137 = 0.022 (2022) - Q1 - T1

Factor impacto CITESCORE: 19.1 - Energy (Q1)

Factor impacto SCIMAGO: 2.514 - Energy Engineering and Power Technology (Q1) - Renewable Energy, Sustainability and the Environment (Q1) - Nuclear Energy and Engineering (Q1) - Fuel Technology (Q1)

Financiación: info:eu-repo/grantAgreement/EC/FP7/268191/EU/Reliable and Efficient Combustion of Oxygen/Coal/Recycled Flue Gas Mixtures/RELCOM
Financiación: info:eu-repo/grantAgreement/ES/MCIN-AEI-FEDER/PID2020-115948RB-I00

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Máquinas y Motores Térmi. (Dpto. Ingeniería Mecánica)