US Patent No: 4,181,599

Number of patents in Portfolio can not be more than 2000

Naphtha processing including reforming, isomerization and cracking over a ZSM-5-type catalyst

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Abstract

A straight-run naphtha is fractionated into a light naphtha fraction and a heavy naptha fraction containing methylcyclopentane and heavier hydrocarbons. The heavy fraction is reformed and the C.sub.5 -C.sub.6 paraffin portion of the reformate combined with the light naphtha fraction for isomerization. The heavy reformate is converted over a ZSM-5-type catalyst to produce a product enriched in aromatics which may be sent for BTX recovery or to a gasoline pool as a high-octane gasoline blending stock.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CHEVRON RESEARCH COMPANYSAN FRANCISCO, CA1702

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hughes, Thomas R Charlotte, NC 17 197
Miller, Stephen J San Francisco, CA 356 2936

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Patent Info (Count) # Cites Year
 
UOP LLC (16)
4,747,933 Isomerization unit with integrated feed and product separation facilities 4 1987
5,003,118 Isomerization of benzene-containing feedstocks 28 1989
5,200,059 Reformulated-gasoline production 6 1991
5,198,097 Reformulated-gasoline production 9 1991
5,360,534 Isomerization of split-feed benzene-containing paraffinic feedstocks 17 1993
5,472,593 BTX from naphtha without extraction 19 1994
5,792,338 BTX from naphtha without extraction 14 1995
6,001,241 BTX from naphtha without extraction 13 1998
6,979,396 Combination reforming and isomerization process 5 2004
7,435,329 Combination reforming and isomerization process 0 2005
7,740,751 Process for heating a stream for a hydrocarbon conversion process 0 2006
7,534,925 Isomerization of benzene-containing feedstocks 0 2007
7,531,704 Isomerization of benzene-containing feedstocks 0 2007
7,875,757 Combination reforming and isomerization process 0 2008
8,282,814 Fired heater for a hydrocarbon conversion process 0 2009
7,638,665 Isomerization of benzene-containing feedstocks 0 2009
 
CHEVRON U.S.A. INC. (2)
8,366,909 Reforming process at low pressure 0 2009
8,658,021 Multi-stage reforming process to produce high octane gasoline 0 2010
 
Mobil Oil Corporation (2)
4,647,368 Naphtha upgrading process 33 1985
5,395,513 Fluid bed catalytic upgrading of reformate 3 1993
 
ATLANTIC RICHFIELD COMPANY (1)
4,923,589 Process for reforming nephthene and paraffin-containing hydrocarbons in the naphtha boiling range and isomerizing C5-C6 normal paraffin feedstock to produce a high octane gasoline 0 1987
 
INSTITUT FRANCAIS DU PETROLE (1)
4,911,822 Combined hydroreforming-hydroisomerization process 10 1987