Dialysis and column chromatography for biomass pyrolysis liquids separation
Mora Sanjuan, Mireia (Universitat Autònoma de Barcelona. Departament de Química)
Fàbregas, Esteve (Universitat Autònoma de Barcelona. Departament de Química)
Céspedes Mulero, Francisco (Universitat Autònoma de Barcelona. Departament de Química)
Rovira, Pere (Centre Tecnològic Forestals de Catalunya)
Puy Marimón, Neus (Universitat Autònoma de Barcelona. Departament de Química)

Date:	2023
Abstract:	In the current study, a novel approach for separating value-added chemicals from pine wood residues' pyrolysis liquids (bio-oil) was effectively carried out. It combined two separation techniques used for the first time in this field: dialysis with water, methanol and acetone, and column chromatography with Amberlite™ XAD7 resin. This strategy made it possible to separate bio-oil into four fractions: (1) pyrolytic lignin, which can be utilized in the synthesis of resins, foams, electrodes, asphalt, etc. (2) acid-rich fraction, with particular relevance to the chemical industry, (3) antioxidant fraction, containing phenolic compounds, with a lot of interest for pharmaceutical and nutraceutical industry, and (4) a final fraction containing the most non-polar chemicals from bio-oil. Thus, it was possible to develop a process that allows the obtention of bioproducts from woody biomass, a residue obtained in significant quantities in the management of non-profitable forests, making a step forward within the context of circular economy and bioeconomy.
Grants:	Agencia Estatal de Investigación PID2020-117216RB-100
Note:	Altres ajuts: acords transformatius de la UAB
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Column Chromatography ; Biomass ; Bio-oil ; Dialysis ; Pyrolytic Lignin
Published in:	Waste Management, Vol. 168 (August 2023) , p. 311-320, ISSN 1879-2456

DOI: 10.1016/j.wasman.2023.06.005

10 p, 4.4 MB

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