Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/57923
Título
Synergistic Hydrothermal Conversion of Aqueous Solutions of CO2 and Biomass Waste Liquefaction into Formate
Autor
Año del Documento
2022
Descripción
Producción Científica
Documento Fuente
ACS Sustainable Chemistry & Engineering, 2022, 10, 50, 16948–16957
Abstract
CO2 utilization by conversion into useful chemicals can contribute to facing the problem of increasing CO2 emissions. Among other alternatives, hydrothermal transformation stands out by the high conversions achieved, just using high-temperature water as the solvent. Previous works have demonstrated that several organic compounds with hydroxyl groups derived from biomass can be used as reductants of NaHCO3 aqueous solutions as inorganic CO2 sources. Formate was obtained as the main product as it was produced by conversion both of the inorganic carbon and of the organic reductants, whose transformation into formate was promoted by the addition of NaHCO3. Based on these results, in this work, the hydrothermal conversion of NaHCO3 is performed together with the liquefaction of lignocellulosic biomass (sugarcane bagasse and pine needles) in a one-pot process. Results show that yields to formate of 10% wt/wt (with respect to the initial concentration of biomass) are achieved by hydrothermal treatment of NaHCO3 and lignocellulosic biomass at 250 °C with a residence time of 180 min. Other products, such as acetic acid and lactic acid, were also obtained. These results demonstrate the feasibility of the hydrothermal reduction of CO2 combined with the hydrothermal liquefaction of residual biomass in a simultaneous process.
Palabras Clave
CO2
Biomass valorization
Biomasa
ISSN
2168-0485
Revisión por pares
SI
Patrocinador
Junta de Castilla y Leon - EU-FEDER (program CLU-2019- 04)
Ministerio de Ciencia, Innovación y Universidades (project RTI2018-097456-B-I00)
Ministerio de Ciencia, Innovación y Universidades (project RTI2018-097456-B-I00)
Version del Editor
Propietario de los Derechos
© 2022 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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