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US 11,608,315 B2Granted
Process for the preparation of methyl mercaptan
AssigneesArkema France, Universite Lille 1 Sciences Et Technologies, Centre National de la Recherche Scientifique (CNRS)
InventorsGeorges Frémy, Hélori Salembier, Carole Lamonier, Pascal Blanchard
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Abstract
The invention relates to a process for preparing methyl mercaptan from a mixture of carbon oxide, hydrogen sulfide and hydrogen, in the presence of a catalyst based on molybdenum and potassium supported on zirconia, said catalyst not comprising any promoter.
Claims8
A process for preparing methyl mercaptan (CH3SH), comprising:
- a) reacting a carbon oxide, hydrogen sulphide (H2S) and hydrogen (H2) in the presence of a zirconia-supported molybdenum- and potassium containing catalyst, the catalyst not comprising a promoter, to form a carbonyl sulphide;
- b) hydrogenating the carbonyl sulphide obtained in step a) in the presence of the hydrogen, to form methyl mercaptan and hydrogen sulphide;
- c) optionally, recycling the hydrogen sulphide formed in step b) to step a);
- and
- d) collecting the methyl mercaptan.
2 more elements
Dependencies are inferred from the claim text.