Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Reexamination Certificate
2008-09-02
2008-09-02
Nguyen, Tam M (Department: 1797)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
C208S058000, C208S089000, C208S095000, C208S108000, C208S103000, C208S209000, C208S212000, C208S213000, C208S25400R
Reexamination Certificate
active
11456728
ABSTRACT:
A hydrocracking process wherein the feedstock is hydrotreated and the liquid and gaseous effluent from the hydrotreater is directly introduced into the upper end of a hydrocracking vessel which provides a liquid seal to prevent the passage of the gaseous stream containing hydrogen sulfide and ammonia from the hydrotreater to enter the hydrocracking zone containing hydrocracking catalyst. Fresh hydrogen is then introduced into the hydrocracking zone. An apparatus for hydrocracking a hydrocarbon feedstock is also disclosed.
REFERENCES:
patent: 5403469 (1995-04-01), Vauk et al.
patent: 5720872 (1998-02-01), Gupta
patent: 6190535 (2001-02-01), Kalnes et al.
patent: 6444116 (2002-09-01), Galiasso et al.
patent: 6514403 (2003-02-01), Louie et al.
patent: 6630066 (2003-10-01), Cash et al.
patent: 6632350 (2003-10-01), Gupta
patent: 6689273 (2004-02-01), Kalnes et al.
patent: 6787025 (2004-09-01), Mukherjee et al.
patent: 7074321 (2006-07-01), Kalnes
Anderson Jennifer L.
Hoehn Richard K.
Kocher-Cowan Douglas W.
Murty Vedula K.
Thakkar Vasant P.
Nguyen Tam M
Paschall James C
UOP LLC
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