Patent ID: 6808816
Filing Date: 2004-10-26
Classification: B01J,C23C,Y10T

Abstract:
A hydrocarbon fluid containment article through which a hydrocarbon fluid flows at a temperature up to about 345Â° C., the hydrocarbon fluid containment article comprising a wall and a coating system on the wall, the coating system comprising an outermost layer consisting essentially of platinum and having a thickness of about 100 to about 500 nm and a ceramic barrier layer between the outermost layer and the wall, the hydrocarbon fluid contacting and flowing across the outermost layer, the platinum of the outermost layer catalyzing the hydrocarbon fluid to form particulates of carbonaceous gum substances suspended within the hydrocarbon fluid, the ceramic barrier layer being sufficiently thick to inhibit interdiffusion between the outermost layer and the wall.