木质素热解油加氢脱氧催化剂和制备方法、加氢脱氧方法
By optimizing the composition and preparation method of the lignin pyrolysis oil hydrodeoxygenation catalyst, MOx-transition metal interface sites were formed, solving the problems of low conversion rate and aromatic selectivity in the existing technology. This achieved efficient conversion of phenolic compounds and aromatic selectivity, thus improving the quality of bio-jet fuel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 中国航空油料有限责任公司
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the conversion rate and aromatic selectivity of lignin pyrolysis oil during hydrodeoxygenation are low, resulting in insufficient aromatic content in biofuel, which affects the expansion performance of aircraft rubber seals and the risk of fuel leakage.
A catalyst with MOx and transition metals mounted on a support is used. By optimizing the catalyst composition and preparation process, MOx-transition metal interface sites are formed to improve the hydrogenation and deoxygenation effect of the catalyst. Specifically, the support is silica and/or activated carbon, the MOx is cerium, titanium or zirconium, and the transition metal is palladium, platinum or ruthenium. The catalyst is prepared through mixing and impregnation, drying, calcination and reduction steps.
High efficiency of phenolic compound conversion and aromatic hydrocarbon selectivity was achieved under mild conditions (250-400℃, 0.1-2MPa), with phenolic compound conversion reaching 76.1%, aromatic hydrocarbon selectivity exceeding 90%, and reaction rate exceeding 6.6, significantly improving the quality of bio-jet fuel.
Smart Images
Figure CN122399802A_ABST