The oxygen compounds (CO2, CO and O2) are poisons for ammonia synthesis catalyst and for many hydrogenation catalysts and need to be removed to a very low level from gases ultimately used in these processes. The methanation reaction is one of the simplest, low cost methods known for removal of those poisons to levels below 10 ppm. The reaction is referred to as “methanation” as the hydrogenation of carbon oxides produces methane and water.

METH® 134 is standard Süd-Chemie’s methanation catalyst. It is used to promote the reaction between carbon oxides (CO and CO2) at low concentration and hydrogen in considerable excess to form methane and water in hydrogen and ammonia synthesis gases. The original name of this catalyst is C13-3. 

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