RT info:eu-repo/semantics/article
T1 Microwave technology as a green and fast alternative for furfural production and biomass pre-treatment using corn stover: energetic and economic evaluation
A1 Illera Gigante, Alba Ester
A1 Candela Gil, Helena
A1 Barea Gómez, Pedro
A1 Bermejo-López, A.
A1 Beltrán Calvo, Sagrario
A1 Sanz Díez, Mª Teresa
K1 Microwave
K1 Catalyst
K1 Furfural
K1 Sugar monomers
K1 Corn stover
K1 Energy consumption
K1 Biotecnología
K1 Biotechnology
K1 Ingeniería química
K1 Chemical engineering
K1 Alimentos
K1 Food
AB Pressurized microwave treatments were used for the production of furfural using three different pentose-containing materials with different structural complexity levels; pure xylose, xylan from corn core and corn stover. Only water was used as the one-pot reaction medium, as an alternative to the frequently used organic solvents. The presence of CrCl3 as a Lewis acid catalyst was essential for furfural production. In general, higher temperature and longer treatments led to higher furfural yield, although treatment times over 40 minutes did not show any improvement. Using the severity factor (logR0) and the power consumption it was possible to determine that for equal furfural production treatments, it was more energy requiring to maintain a lower temperature during more time, than to perform shorten treatments at higher temperature. Best MW treatment conditions for xylose were 200 °C for 25 minutes, with a furfural yield of 43 %, which corresponded to a logR0 of 2.56. When treating xylan and corn stover, lower furfural yields were achieved under these conditions due to higher energy requirements to break the structural components, being 39 and 23 %, respectively. When treating corn stover under these conditions, best energy consumption values per amount of generated furfural were found, being 0.8 kWh/ g furfural, what is equivalent to the emission of 195 g CO2/ g furfural, a much lower value than other MW tested conditions. MW treatments were proposed as a pre-treatment to enrich biomass in cellulose while producing furfural with an environmentally friendly technology.
PB Elsevier
SN 0926-6690
YR 2025
FD 2025-01
LK http://hdl.handle.net/10259/9957
UL http://hdl.handle.net/10259/9957
LA eng
NO This work was supported by the Agencia Estatal de Investigación (AEI), Ministerio de Ciencia e Innovación (MICINN) and Next Generation UE (Plan de Recuperaciónn, Transformación y Resiliencia) [grant numbers TED2021–129311B-I00 and PDC2022–133443-I00] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant number BU050P20]. P. Barea predoctoral contract was funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/1868/2022, de 19 de diciembre.
DS Repositorio Institucional de la Universidad de Burgos
RD 18-ene-2025