Patent ID: 8128887

Claim:
A method for the reduction of metal catalyzed coke formation on metal alloy component surfaces exposed to a hydrocarbon feed stream under reducing conditions comprising: applying a coating containing complexes of nickel and aluminum, complexes of nickel, chromium and chromium carbide, or sintered aluminum to the metal alloy surfaces in contact with the feed stream; forming a metallurgical bond between metal complexes of the coating and the metal alloy surfaces in contact with the coating; the metal alloy component surfaces provided with an amount of the coating effective to inhibit coke formation on the exposed metal alloy surfaces under reducing conditions; and wherein the coating of sintered aluminum is applied by coating the metal alloy surface with a media containing aluminum and sintering the coating under reducing conditions at temperatures of less than about 800° C. (1472° F.) and applied in an amount to provide a layer comprising aluminum with a thickness of at least about 20 microns.