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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Heyse; John V.
Address:
Crockett, CA
No. of patents:
21
Patents:












Patent Number Title Of Patent Date Issued
RE38532 Hydrodealkylation processes June 8, 2004
Carburization and metal-dusting while hydrodealkylating a hydrodealkylatable hydrocarbon are reduced even in the substantial absence of added sulfur.
6602483 Increasing production in hydrocarbon conversion processes August 5, 2003
A improved hydrocarbon conversion process, comprising applying a plating, cladding, paint or other coating to at least a portion of a hydrocarbon conversion reactor system which is used to convert hydrocarbons to products in the presence of steam, said coating being effective to reduce
6548030 Apparatus for hydrocarbon processing April 15, 2003
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.
6274113 Increasing production in hydrocarbon conversion processes August 14, 2001
A improved hydrocarbon conversion process, comprising applying a plating, cladding, paint or other coating to at least a portion of a hydrocarbon conversion reactor system which is used to convert hydrocarbons to products in the presence of steam, said coating being effective to reduce
6258256 Cracking processes July 10, 2001
Methods for cracking hydrocarbons in reactor systems having improved resistances to carburization and coking. The reactor system comprises a steel portion having provided thereon a chromium protective layer to isolate the steel portion from hydrocarbons, applied to a thickness effect
6019943 Diffusion barriers for preventing high temperature hydrogen attack February 1, 2000
A method of protecting carbon and low-alloy steels from high temperature hydrogen attack. A carbon or low-alloy steel portion of a reactor system that is to be contacted with high pressure hydrogen at elevated temperatures is provided with an intermetallic, diffusion barrier layer th
5866743 Hydrodealkylation processes February 2, 1999
Carburization and metal-dusting while hydrodealkylating a hydrodealkylatable hydrocarbon are reduced even in the substantial absence of added sulfur.
5863418 Low-sulfur reforming process January 26, 1999
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.
5849969 Hydrodealkylation processes December 15, 1998
Carburization and metal-dusting while hydrodealkylating a hydrodealkylatable hydrocarbon are reduced even in the substantial absence of sulfur.
5833838 Cracking processes November 10, 1998
Methods for cracking hydrocarbons in reactor systems having improved resistances to carburization and coking. The reactor system comprises a steel portion having provided thereon a Group VIB metal protective layer to isolate the steel portion from hydrocarbons, applied to a thickness
5807842 Hydrocarbon processing in equipment having increased halide stree-corrosion cracking resistance September 15, 1998
A hydrocarbon conversion process wherein austenitic stainless steel portions that are subject to halide stress-corrosion cracking conditions, such as the colder portions of the process equipment including effluent coolers, knockout drums, accumulation drums, and piping low points, are
5676821 Method for increasing carburization resistance October 14, 1997
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.
5674376 Low sufur reforming process October 7, 1997
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.
5658452 Increasing production in hydrocarbon conversion processes August 19, 1997
A improved hydrocarbon conversion process, comprising applying a plating, cladding, paint or other coating to at least a portion of a hydrocarbon conversion reactor system which is used to convert hydrocarbons to products in the presence of steam, said coating being effective to reduce
5648178 Reactor system steel portion July 15, 1997
Methods for cracking hydrocarbons in reactor systems having improved resistances to carburization and coking. The reactor system comprises a steel portion having provided thereon a Group VIB metal protective layer to isolate the steel portion from hydrocarbons, applied to a thickness
5575902 Cracking processes November 19, 1996
Methods for cracking hydrocarbons in reactor systems having improved resistances to carburization and coking. The reactor system comprises a steel portion having provided thereon a Group VIB metal protective layer to isolate the steel portion from hydrocarbons, applied to a thickness
5516421 Sulfur removal May 14, 1996
A process for reducing the amount of down time or yield loss associated with a sulfur upset when using a sulfur-sensitive catalyst. The process comprises applying a metallic coat, cladding, plating or paint to a reactor system which comprises a base metal, so as to form an adherent m
5406014 Dehydrogenation processes, equipment and catalyst loads therefor April 11, 1995
Disclosed are methods for dehydrogenation of alkanes into alkenes in reactor systems of improved resistance to carburization under dehydrogenation conditions. The reactor walls are provided with a carburization and abrasion resistant protective layer by applying a metal plating, clad
5279998 Zeolitic catalyst January 18, 1994
The exterior of a platinum-zeolite L catalyst is treated with metallic tin particles having an average particle size of between 1 and 5 microns so that at least 95% of the platinum present in the catalyst is unreacted with the tin.
4933071 Iron removal from hydrocarbonaceous feedstock June 12, 1990
A process is disclosed for the removal of iron from hydrocarbonaceous feedstock comprising passing the feedstock over inert, fibrous material in the presence of sulfur to induce the deposition of iron sulfide on the fibrous material through autocatalytic homoepitaxy.
4789462 Reverse-graded catalyst systems for hydrodemetalation and hydrodesulfurization December 6, 1988
We provide reverse-graded catalyst systems which are capable of removing metals and sulfur from a hydrocarbon feedstock. They comprise two or more catalyst layers in which at least two successive catalyst layers characterized as having decreasing desulfurization activity, and increas










 
 
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