Production of phenolic compounds from argan shell waste by reductive catalytic fractionation

Afailal, Zainab ; Gil-Lalaguna, Noemí (Universidad de Zaragoza) ; Høj, Martin ; Cornejo, Alfonso ; Sánchez, José Luis (Universidad de Zaragoza) ; Jensen, Anker Degn

Resumen: For efficient utilization of lignocellulosic biomass components, reductive catalytic fractionation appears as a promising biorefinery strategy. In this work, this concept of biomass valorization was used to study the potential of an unexplored feedstock, argan shells. This material was processed in a non-catalytic route and over a Pd/C catalyst in two different reaction media. The effects of the treatment temperature (250, 275, and 300 °C), as well as the catalyst loading (catalyst/argan shells mass ratio of 0.05 and 0.1 g/g), were also studied. The main product (lignin-derived oil) was thoroughly characterized using GC/MS/FID, SEC, and NMR. The highest monomer yields of 48–49 wt% based on the lignin content were obtained for n-butanol/water reaction medium at 300 °C using a Pd/C catalyst load of 0.1 g/g and for methanol reaction medium at 275 °C and 0.05 g/g. Significantly lower monomeric phenol yields were obtained in the non-catalytic route (4–19 wt% for n-butanol/water and 9–16 wt% for methanol). The main phenolic monomers in the catalytic pathway were 4-n-propanolguaiacol, 4-n-propanolsyringol, and 4-alkyl guaiacols and syringols, with some differences in the selectivities from one solvent to another.

Idioma: Inglés

DOI: 10.1007/s13399-023-04937-9

Año: 2023

Publicado en: Biomass Conversion and Biorefinery (2023), [20 pp.]
ISSN: 2190-6815

Factor impacto JCR: 3.5 (2023)

Categ. JCR: ENGINEERING, CHEMICAL rank: 63 / 170 = 0.371 (2023) - Q2 - T2
Categ. JCR: ENERGY & FUELS rank: 94 / 171 = 0.55 (2023) - Q3 - T2

Factor impacto CITESCORE: 7.0 - Renewable Energy, Sustainability and the Environment (Q2)

Factor impacto SCIMAGO: 0.595 - Renewable Energy, Sustainability and the Environment (Q2)

Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2020-114936RB-I00
Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-23R

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)