Effective Catalytic Delignification and Fractionation of Lignocellulosic Biomass in Water over Zn3V2O8 Mixed Oxide | Zendy

Khadija Khallouk | Zendy; Abderrahim Solhy | Zendy; Abdelhak Kherbeche | Zendy; Éric Dubreucq | Zendy; Lamfeddal Kouisni | Zendy; Abdellatif Barakat | Zendy

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Effective Catalytic Delignification and Fractionation of Lignocellulosic Biomass in Water over Zn₃V₂O₈ Mixed Oxide

Author(s) -

Khadija Khallouk,

Abderrahim Solhy,

Abdelhak Kherbeche,

Éric Dubreucq,

Lamfeddal Kouisni,

Abdellatif Barakat

Publication year - 2019

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.9b02159

Subject(s) - syringaldehyde , lignin , vanillin , depolymerization , chemistry , lignocellulosic biomass , hemicellulose , catalysis , biomass (ecology) , fractionation , cellulose , mixed oxide , furan , organic chemistry , yield (engineering) , oxide , materials science , agronomy , metallurgy , biology

The conversion of poplar wood biomass to highly value-added chemicals and molecular building blocks was achieved by using the dispersed mixed oxide Zn 3 V 2 O 8 (ZVO) in water under 100 kPa of 10% O 2 /N 2 at 160, 180, and 200 °C for 4 h. This nanostructured mixed oxide was prepared via the precipitation process and then characterized by several techniques. The results showed that this mixed oxide has interesting catalytic properties and is a versatile catalyst for biomass delignification and lignin and hemicellulose depolymerization. ZVO exhibited high activity on poplar biomass delignification and fractionation (degree of delignification > 97%) and lignin and holocellulose conversion with high yield into aromatic and furan compounds (80 mg/g initial wood at 200 °C), with high selectivities for 5-hydroxymethylfurfural (HMF) (25 mg/g of initial wood), vanillin, and syringaldehyde.

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