Supported Mo—O—K—Me_xO_y catalyst for the synthesis of methanethiol from high H₂S-containing syngas

摘要

This invention is related to a preparation method of a supported catalyst Mo—O—K-Me_xO_y for the synthesis of methanethiol from H₂S-containing syngas. The catalyst comprises of an active component of Mo—O—K-based species, an active promoter and a support denoted as metal (or metals)-carrier. The support is prepared by electroless plating method in such a way that the metal or metals chosen are plated onto the surface of the carrier. Transition metal, especially Fe, Co or Ni are selected to be the plating metal, while SiO₂, Al₂O₃ or TiO₂ are selected to be carrier. The catalyst thus prepared is found to be efficient for the synthesis of methanethiol from H₂S-containing syngasor carbon oxides/hydrogen mixtures, especially regarding a minor formation of the by-product CO₂.