Use of a catalyst comprising a bimetallic compound and a promoter for the production of methyl mercaptan

A Mo-W bimetallic catalyst with a promoter on ZrO2 or Al2O3 supports improves methyl mercaptan production by increasing selectivity and productivity while allowing carbon monoxide recycling, addressing the inefficiencies of existing catalysts.

WO2026109855A1PCT designated stage Publication Date: 2026-05-28ARKEMA FRANCE SA +4
View PDF 8 Cites 0 Cited by

Patent Information

Application Number
PCT/FR2025/051074
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 catalysts for producing methyl mercaptan suffer from low selectivity and productivity, with significant by-products such as carbon dioxide being produced, necessitating improved catalysts for enhanced performance.

Method used

A catalyst comprising a Mo-W bimetallic compound and a promoter, preferably potassium, supported on a metal oxide like ZrO2 or Al2O3, is used to produce methyl mercaptan from carbon monoxide, hydrogen sulfide, and hydrogen, with a process that includes consecutive reactions without intermediate purification, allowing recycling of hydrogen sulfide.

Benefits of technology

The catalyst achieves improved methyl mercaptan selectivity and productivity, with carbon monoxide as the main by-product that can be reused, enhancing overall process efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure IMGF000008_0001_TABLE
    Figure IMGF000008_0001_TABLE
  • Figure IMGF000009_0001_TABLE
    Figure IMGF000009_0001_TABLE
  • Figure 00000012_0000
    Figure 00000012_0000
Patent Text Reader

Abstract

The present invention relates to the use of at least one catalyst comprising at least one Mo-W bimetallic compound and at least one promoter for the production of methyl mercaptan.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Process for the preparation of methyl mercaptan from carbon oxides

    EP0171312A1

  • Process for the manufacture of methymercaptan

    US20070213564A1

  • Catalyst for the preparation of methyl mercaptan

    US20080262270A1

  • Mo containing catalyst, a preparation method and a method for preparing methyl mercaptan

    US20100094059A1

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

    US20100286448A1