Methanation Catalysts

Advantages Low carbon oxide concentrations in outlet gas Low and stable pressure drop due to high strength and sphere structure Excellent thermal stability Easy for activation and start-up High ability for anti-external contaminations High activity and selectivity; Performance Parameter Appearance Grey spheroids Size: Diameter 3-7mm Bulk Density 0.8-1.0 g/ml Applications Following the low temperature shift reaction and removal of carbon dioxide (CO2), the methanation reaction is used to remove any remaining carbon oxides from the process stream prior to ammonia synthesis. Trace amounts of carbon monoxide and carbon dioxide are reacted with hydrogen in the presence of a nickel oxide catalyst to produce a mixture of methane and water CO + 3H2 → CH 4+ H2O H0 298 =-206.2KJ/molCO2 + 4H2 → CH 4+ 2H2O H0 298 =-165.0KJ/mol