Method of decomposing ammonia using a ruthenium catalyst
AssigneeNKK Corporation
InventorsTsutomu Shikada, Minoru Asanuma, Takao Ikariya
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Abstract
For carrying out a process for decomposing, into hydrogen and nitrogen, ammonia recovered from a coke oven gas by combining a catalytic combustion of ammonia and a catalytic decomposition of ammonia utilizing a waste heat by said combustion, a basic compound as a required catalyzer is added to ruthenium supported on alumina, or ruthenium as a required catalyzer is supported on a basic compound, whereby ammonia may be decomposed effectively at ranges of low temperatures as not more than 500.degree. C.
Claims6
A process for decomposing ammonia wherein a catalyzer is utilized, said catalyzer consisting essentially of a mixture of a basic compound in an amount of 1 to 20 weight percent and ruthenium in an amount of 0.1 to 2.0 weight percent which is impregnated into an alumina carrier and then calcinated and reduced, wherein the ammonia is decomposed at a temperature of not more than 500.degree. C., said basic compound being an oxide, a carbonate, a hydroxide, a nitrate or an acetate of an alkali metal or an alkaline earth metal.
Dependencies are inferred from the claim text.