Preparation method and application of dual-functional hydrodeoxygenation catalyst

Abstract

The invention discloses a preparation method and application of a dual-functional hydrodeoxygenation catalyst, and belongs to the technical field of catalyst synthesis. The invention aims to solve the problems of the existing hydrodeoxygenation catalyst, and provides the preparation method for a non-sulphurized dual-functional hydrodeoxygenation catalyst. The preparation method comprises the following steps: first, preparing a flower-like Ni(OH)2 mixed solution; then, performing a hydrothermal reaction; next, adding the reaction product into an MIL-101 precursor solution and a heteropolyacid solution; finally, obtaining a flower-like Ni(OH)2-supported HPA@MIL-101 catalyst. The flower-like Ni(OH)2-supported HPA@MIL-101 catalyst can be applied to a hydrodeoxygenation reaction which takes phenol as a lignin-based phenol model compound. According to the dual-functional hydrodeoxygenation catalyst prepared with the preparation method, dual functions of the hydrodeoxygenation reaction can be realized, that is, the HPA@MIL-101 provides an acidic site, and the flower-like Ni(OH)2 provides metal activity, so that the synergistic effect can remarkably improve the hydrodeoxygenation activity and the selectivity of a target product.

Description

technical field

[0001] The invention relates to a preparation method and application of a bifunctional hydrodeoxygenation catalyst, belonging to the technical field of catalyst synthesis. Background technique

[0002] In view of the current unsustainable exploitation of petrochemical resources, the increasing demand for energy, and the aggravation of greenhouse gas pollution, people are actively developing biomass energy and striving to achieve sustainable development of resources. Lignin accounts for 15%-35% of the entire biomass component, and is the renewable resource with the most aromatic structures on earth. Oriented depolymerization or catalytic liquefaction of lignin into phenolic compounds (phenol, guaiacol, eugenol, etc.), and then through hydrodeoxygenation reaction, the phenolic compounds are converted into naphthenes and polyalkylated benzenes as the main Component hydrocarbons, thereby realizing the conversion from lignin to hydrocarbon fuels via phenolic plat...

Images