Process for the separation of cresols in a simulated moving bed
By using FAU-type zeolite adsorbent and 2-pentanol or 3-pentanol desorbent in cresol separation, the problems of insufficient selectivity and regenerability of desorbents in existing technologies are solved, achieving efficient cresol separation and increased productivity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- IFP ENERGIES NOUVELLES
- Filing Date
- 2024-11-20
- Publication Date
- 2026-06-26
AI Technical Summary
Existing technologies lack selectivity and regenerability of desorbents in cresol separation, resulting in low molecular sieve productivity, high distillation column energy consumption, and the desorbent is easily retained in the molecular sieve after regeneration, limiting the future productivity of the molecular sieve.
An adsorbent based on FAU-type zeolite and a desorbent selected from straight-chain 5-carbon alcohols, especially 2-pentanol and 3-pentanol, were used to simulate the separation of cresol in a moving bed. Through selective adsorption and desorption, the separation efficiency of p-cresol and m-cresol was improved, and the productivity was optimized.
This technology enables the production of high-purity p-cresol and m-cresol, reduces energy consumption in the distillation stage, and improves the productivity of molecular sieves and the efficiency of desorbent use.
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Abstract
Citation Information
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