Process for preparing methyl mercaptan

The described process addresses low productivity and conversion issues in methyl mercaptan production by using CAI and CA2 catalysts with recycling and purification, achieving improved yield and quality.

WO2026109854A1PCT designated stage Publication Date: 2026-05-28ARKEMA FRANCE SA
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Patent Information

Application Number
PCT/FR2025/051073
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-11-20
Filing Date
2025-11-19
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing processes for producing methyl mercaptan from carbon oxides suffer from low productivity and conversion efficiency, particularly in converting carbon monoxide to methyl mercaptan.

Method used

A process involving the retro water-gas shift reaction with a CAI catalyst, followed by a CA2 catalyst reaction, includes recycling non-condensable products, and multiple purification steps to enhance methyl mercaptan productivity and conversion.

Benefits of technology

The process achieves improved methyl mercaptan productivity and excellent conversion to carbon monoxide, with efficient recycling and purification methods, resulting in enhanced yield and product quality.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present invention relates to a process for preparing methyl mercaptan, comprising the specific steps a) to h).
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Citation Information

Patent Citations

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    US20100094059A1

  • SUPPORTED MO-O-K-MExOy CATALYST FOR THE SYNTHESIS OF METHANETHIOL FROM HIGH H2S-CONTAINING SYNGAS

    US20100286448A1

  • Process for the manufacture of methylmercaptan

    WO2005040082A2

  • Catalyst for the synthesis of methyl mercaptan and process for producing methyl mercaptan from synthesis gas and hydrogen sulphide

    WO2014154885A1