一种碳二馏分前脱乙烷前加氢催化剂及其制备方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2022-11-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing Pd-Ag bimetallic selective hydrogenation catalysts suffer from reduced selectivity and easy deactivation in the selective hydrogenation of C2 fractions, especially with severe ethylene loss at high hydrogen content. Traditional preparation methods are difficult to form a uniform alloy structure.
Using phosphorus-doped carbon material as a support, a porous structure is prepared by hydrothermal method, and Pd and Cu are dispersed at the atomic level by photoreduction method to form a catalyst in a single-atom state, avoiding nanoparticle or sub-nano cluster structure, thereby improving the hydrogenation activity and selectivity of the catalyst.
This achieved high anti-coking performance and good hydrogenation activity of the catalyst, reduced green oil formation, extended catalyst life, and improved the stability and selectivity of acetylene selective hydrogenation reaction.
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Figure CN118105998B_ABST