利用镍基碱性载体催化剂氢解木质素制备C2-酚单体的方法
By using a nickel-based alkaline supported catalyst and solvent-based hydrogen supply in the absence of an external hydrogen donor, C2-phenol monomers can be prepared with high selectivity. This solves the problem of low selectivity of C2-phenol monomers in existing technologies and achieves efficient conversion of lignin into high-value chemicals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHEAST UNIV
- Filing Date
- 2024-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have low selectivity for C2-phenol monomers during lignin hydrogenolysis, and most methods require external hydrogen, increasing costs, while failing to effectively improve the selectivity of C2-phenol monomers.
A nickel-based alkaline supported catalyst was used to prepare C2-phenol monomers by using solvent hydrogen supply under conditions without external hydrogen donor. The process included steps such as suspending and dispersing the alkaline support, heating and stirring with a nickel source, drying and grinding, and calcining and reducing to form a nickel-based alkaline supported catalyst, which was then subjected to hydrogenolysis reaction under an inert gas atmosphere.
Under conditions without external hydrogen, C2-phenol monomers were prepared by highly selective depolymerization of lignin with a selectivity of 58.2%, and waste lignin was converted into high-value C2-phenol monomer chemicals.
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Figure CN118122361B_ABST