Fuels hydrocracking and distillate feed hydrofining in a...

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed

Reexamination Certificate

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Details

C208S095000, C208S111050, C208S058000, C208S060000, C208S061000, C208S074000, C208S097000, C208S108000, C208S143000

Reexamination Certificate

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11015898

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.

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