Mineral oils: processes and products – Chemical conversion of hydrocarbons – With subsequent treatment of products
Patent
1997-05-23
1999-02-02
Griffin, Walter D.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With subsequent treatment of products
208 95, 208 62, 208134, 208135, G10G 6908
Patent
active
058659889
ABSTRACT:
Low sulfur gasoline is produced from an olefinic, cracked, sulfur-containing naphtha by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 to crack low octane paraffins and olefins under relatively mild conditions, with limited aromatization of olefins and naphthenes. This is followed by hydrodesulfurization over a hydrotreating catalyst such as CoMo on alumina. The initial treatment over the acidic catalyst removes the olefins which would otherwise be saturated in the hydrodesulfurization, consuming hydrogen and lowering product octane, and converts them to compounds which make a positive contribution to octane. Overall liquid yield is high, typically at least 90 percent of higher. Product aromatics are typically increased by no more than 25 weight percent relative to the feed and may be lower than the feed.
REFERENCES:
patent: 3442792 (1969-05-01), Eng et al.
patent: 3533937 (1970-10-01), Stankis
patent: 3801494 (1974-04-01), Moore et al.
patent: 3957625 (1976-05-01), Orkin
patent: 3959116 (1976-05-01), Arey, Jr. et al.
patent: 4950387 (1990-08-01), Harandi et al.
patent: 4975179 (1990-12-01), Harandi et al.
patent: 5143596 (1992-09-01), Maxwell et al.
patent: 5292976 (1994-03-01), Dessau et al.
patent: 5346609 (1994-09-01), Fletcher et al.
patent: 5347061 (1994-09-01), Harandi et al.
patent: 5396010 (1995-03-01), Harandi et al.
patent: 5409596 (1995-04-01), Fletcher et al.
patent: 5414172 (1995-05-01), Chin et al.
Collins Nick A.
Durand Paul P.
Hilbert Timothy L.
Teitman Gerald J.
Trewella Jeffrey C.
Griffin Walter D.
Keen Malcolm D.
Mobil Oil Corporation
Prater Penny L.
LandOfFree
Hydrocarbon upgrading process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrocarbon upgrading process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrocarbon upgrading process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1113710