Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Reexamination Certificate
2004-12-16
2008-09-23
Nguyen, Tam M. (Department: 1797)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
C208S095000, C208S111050, C208S058000, C208S060000, C208S061000, C208S074000, C208S097000, C208S108000, C208S143000
Reexamination Certificate
active
07427349
ABSTRACT:
The present invention relates to the field of hydroprocessing, and more particularly relates to a process directed to fuels hydrocracking and distillate feed hydrofining. This process has at least two stages. A relatively unconverted hydrofined product may be removed prior to the second stage, providing flexibility. In another embodiment, fresh feed may be added prior to the second stage. In both embodiments, fuels production is maintained at a constant level.
REFERENCES:
patent: 6200462 (2001-03-01), Cash et al.
patent: 6623624 (2003-09-01), Cash et al.
patent: 6787025 (2004-09-01), Mukherjee et al.
patent: 6797154 (2004-09-01), Mukherjee et al.
Farshid Darush
Hofer Kevin L.
Mukherjee Ujjal K.
Chevron U.S.A. Inc.
Nguyen Tam M.
Prater Penny L.
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