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

ABSTRACT: The conversion of poplar wood biomass to highly value-added chemicals and molecular building blocks was achieved by using the dispersed mixed oxide Zn3V2O8 (ZVO) in water under 100 kPa of 10% O2/N2 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.

SUBMITTER: Khallouk K 

PROVIDER: S-EPMC6964314 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Effective Catalytic Delignification and Fractionation of Lignocellulosic Biomass in Water over Zn<sub>3</sub>V<sub>2</sub>O<sub>8</sub> Mixed Oxide.

Khallouk Khadija K   Solhy Abderrahim A   Kherbeche Abdelhak A   Dubreucq Eric E   Kouisni Lamfeddal L   Barakat Abdellatif A  

ACS omega 20191231 1

The conversion of poplar wood biomass to highly value-added chemicals and molecular building blocks was achieved by using the dispersed mixed oxide Zn<sub>3</sub>V<sub>2</sub>O<sub>8</sub> (ZVO) in water under 100 kPa of 10% O<sub>2</sub>/N<sub>2</sub> 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 versat  ...[more]

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