Using hydrocarbon streams to prepare a metallic protective layer

Details Using hydrocarbon streams to prepare a metallic protective layer Using hydrocarbon streams to prepare a metallic protective layer

1996-10-31

2000-10-31

Beck, Shrive

Coating processes

Restoring or repairing

Metal article

427140, 427239, 4272481, 42725526, 4272554, 427335, 427337, 427405, 4274197, B05D 304, B05D 136, B05D 722

Patent

active

061399094

ABSTRACT:
A process for producing a metallic protective layer whereby a metal-containing plating, cladding, paint or other coating is applied to at least a portion of a reactor system and then contacted with a gaseous stream containing hydrocarbons, such as impure hydrogen, thereby producing a continuous and adherent metallic protective layer. The gaseous stream preferably comprises hydrogen, which may be recycled. A preferred embodiment of the invention is directed to touch-up procedures where a portion of an already protected reactor system is replaced or rewelded and the protective layer is formed as the replaced portion is brought on-stream.

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King et al., The Production of Ethylene by the Decomposition of n-Butane; the Prevention of Carbon Formation by the Use of Chromium Plating, no date available.

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