Metal sulfide catalysts and methods of making same

Chemistry of inorganic compounds – Sulfur or compound thereof – Binary compound

Reexamination Certificate

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C423S055000, C423S065000, C502S219000, C502S220000, C518S714000

Reexamination Certificate

active

07955588

ABSTRACT:
Methods and apparatus relate to catalysts and preparation of the catalysts, which are defined by sulfides of a transition metal, such as one of molybdenum, tungsten, and vanadium. Precursors for the catalysts include a metal ion source compound, such as molybdenum trioxide, and a sulfide ion source compound, such as thioacetamide. Once the precursors are dissolved if solid and combined in a mixture, homogenous precipitation from the mixture forms the catalysts. Exemplary uses of the catalysts include packing for a methanation reactor that converts carbon monoxide and hydrogen into methane.

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