Inhibiting deposition, on a metallic surface, of products e.g. gum, obtained from thermal degradation of hydrocarbons derived from hydrocarbon fluid, comprises forming hydrogenated metallic oxide coating layer on metallic surface

摘要

Method for inhibiting deposition, on a metallic surface, products e.g. gum, obtained from the thermal degradation of hydrocarbons derived from a hydrocarbon fluid mixed with oxygen and/or sulfur, comprises forming at least a hydrogenated metallic oxide coating layer (a) on the metallic surface, in a distributed electron cyclotron resonance plasma reactor. Method for inhibiting deposition, on a metallic surface, of products e.g. gum, obtained from the thermal degradation of hydrocarbons derived from a hydrocarbon fluid mixed with oxygen and/or sulfur, comprises forming at least a hydrogenated metallic oxide coating layer of formula (M zO(x -y)H y) (a) on the metallic surface, in a distributed electron cyclotron resonance plasma reactor. M : metal valency of v, z or x; v, z : 2x; and y : 0-0.2. An independent claim is included for a metallic part, which is coated on a portion of surface by a hydrogenated metallic oxide coating layer.