Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Reexamination Certificate
2003-12-22
2008-03-11
Caldarola, Glenn A. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
C208S210000, C208S21600R, C208S217000
Reexamination Certificate
active
07341657
ABSTRACT:
Disclosed is a process for reducing sulfur and olefin contents in gasoline, comprising contacting gasoline feedstock and hydrogen with a hydrorefining catalyst and an paraffin-modification catalyst. The effluent of the process is separated to obtain a hydrotreated gasoline fraction free of mercaptan and having a low content of sulfur, e.g. less than 200 ppm, a low content of olefins, e.g. less than 20% by volume, and little octane loss. The hydrotreated gasoline fraction can be used as blending component of a final gasoline product.
REFERENCES:
patent: 3957625 (1976-05-01), Orkin
patent: 4397739 (1983-08-01), Jacquin et al.
patent: 5391288 (1995-02-01), Collins et al.
patent: 5399258 (1995-03-01), Fletcher et al.
patent: 5411658 (1995-05-01), Chawla et al.
patent: 5599439 (1997-02-01), Collins et al.
patent: 5851382 (1998-12-01), Sudhakar
patent: 5906730 (1999-05-01), Hatanaka et al.
patent: 5985136 (1999-11-01), Brignac et al.
patent: 6231753 (2001-05-01), McKnight et al.
patent: 1253993 (2000-05-01), None
patent: 01/79391 (2001-10-01), None
English Language Abstract of CN 1253993, May 24, 2000.
Hu Yunjian
Li Dadong
Li Mingfeng
Shi Yahua
Shi Yulin
Caldarola Glenn A.
China Petroleum & Chemical Corporation
Research Institute of Petroleum Processing Sinopec
Scully , Scott, Murphy & Presser, P.C.
Singh Prem C.
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