Patent ID: 6936363
Filing Date: 2005-08-30
Classification: B01J,C01B,F02M,H01M,Y02E,Y02T

Abstract:
1. A process for producing a hydrogen and nitrogen mixture from gaseous ammonia, said process comprising: (a) providing a gaseous ammonia stream to a dissociation unit of an ammonia cracker to dissociate the gaseous ammonia stream to a mixture of hydrogen and nitrogen at a temperature of about 500° C. to 750° C., wherein the dissociation unit consists essentially of a catalyst bed containing aluminum oxide pellets onto which an active catalyst metal has been deposited , the active catalyst metal being a member selected from the group consisting of nickel, ruthenium and platinum; (b) supplying the hydrogen and nitrogen mixture to a fuel cell, and (c) feeding a portion of hydrogen electrode off gas of the fuel cell to a heating unit of the ammonia cracker to supply heat for further dissociation reactions of the ammonia.