Method for treating a catalyst containing zeolite
JP2025523571A5Pending Publication Date: 2026-06-25IFP ENERGIES NOUVELLES
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- IFP ENERGIES NOUVELLES
- Filing Date
- 2023-06-19
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Existing catalysts containing ZSM-5 zeolite face challenges in achieving high conversion rates and stability for converting ethylene to propylene, particularly due to issues with mechanical strength and handling during preparation and storage.
Method used
A steam treatment method is applied to a catalyst bed of ZSM-5 zeolite and silicon oxide binder within a catalytic hydrocarbon conversion reactor, at temperatures ranging from 150°C to 700°C and pressures up to 3×10^6 Pa, eliminating the need for calcination and enhancing catalyst performance.
Benefits of technology
The method improves conversion rates and stability of ethylene to propylene, with increased mechanical strength and reduced preparation time, while maintaining catalyst integrity and performance.
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Abstract
The present invention is a method for treating a catalyst comprising at least one ZSM-5 type aluminosilicate zeolite and a binder containing silicon oxide, said treatment comprising a steam treatment of the catalyst, said steam treatment being carried out on the catalyst in the form of a catalyst bed of catalyst particles, disposed in a reactor for catalytic conversion of hydrocarbons, with a steam treatment gas stream containing steam passing through said bed, at a temperature of at least 150 °C and at a pressure of up to 3×10 6 Pa.
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