Apparatus for hydrocarbon processing
AssigneeChevron Phillips Chemical Company LP
InventorsJohn V. Heyse, Bernard F. Mulaskey, Robert A. Innes, Daniel P. Hagewiesche, Gale L. Hubred, Steven C. Moore, Paul F. Bryan, Robert L. Hise, Steven E. Trumbull, Randall J. Harris
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Abstract
Disclosed is a method for reforming hydrocarbons comprising contacting the hydrocarbons with a catalyst in a reactor system of improved resistance to carburization and metal dusting under conditions of low sulfur.
Claims53
A low-sulfur, catalytic reforming reactor system, comprising:
- at least one furnace;
- at least one catalytic reforming reactor comprising a sulfur-sensitive, large-pore zeolite catalyst;
- at least one pipe connected between said at least one furnace and said at least one catalytic reforming reactor for passing a gas stream containing a hydrocarbon from said at least one furnace to said at least one catalytic reforming reactor;
- wherein at least one surface portion of said catalytic reforming reactor system that is exposed to said hydrocarbon comprises a protective layer that provides resistance to carburization and metal dusting.
The system of claim wherein said protective layer comprises a continuous protective layer that covers said surface portion and has a predetermined thickness.
A low-sulfur, catalytic reforming reactor system, comprising:
- at least one furnace;
- at least one catalytic reforming reactor comprising a sulfur-sensitive, large-pore zeolite catalyst having an alkali or an alkaline earth metal charged with at least one Group VIII metal;
- at least one pipe connected between said at least one furnace and said at least one catalytic reforming reactor for passing a gas stream containing a hydrocarbon from said at least one furnace to said at least one catalytic reforming reactor;
- wherein at least one surface portion of said catalytic reforming reactor system that is exposed to said hydrocarbon comprises a plating, cladding, or paint comprising tin that provides resistance to carburization and metal dusting.
A portion of a low-sulfur, catalytic reforming reactor system, made by the process comprising:
- applying a coating to a surface of a portion of a low-sulfur, catalytic reforming reactor system that is exposed to a hydrocarbon during reforming;
- and
- forming a protective layer from said coating on said surface that provides resistance to carburization and metal dusting upon reforming.
A portion of a low-sulfur, catalytic reforming reactor system, comprising at least one surface of a portion of a low-sulfur catalytic reforming reactor system that is exposed to a hydrocarbon having a protective layer that provides resistance to carburization and metal dusting.
A portion of a low-sulfur, catalytic reforming reactor system, comprising at least one surface of a portion of a low-sulfur catalytic reforming reactor system that is exposed to a hydrocarbon having a protective layer comprising a paint comprising tin that provides resistance to carburization and metal dusting.
A portion of a low-sulfur, catalytic reforming reactor system, comprising at least one surface of a portion of a low-sulfur catalytic reforming reactor system that is exposed to a hydrocarbon having means for providing resistance to carburization and metal dusting upon reforming.
Dependencies are inferred from the claim text.