Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2008-09-18
2011-11-01
Nguyen, Tam M (Department: 1772)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S112000
Reexamination Certificate
active
08048292
ABSTRACT:
Systems and methods for hydroprocessing a heavy oil feedstock, the system employs a plurality of contacting zones and separation zones and a solvent deasphalting (SDA) unit for providing at least a portion of the heavy oil feedstock. The contacting zones operate under hydrocracking conditions, employing a slurry catalyst for upgrading the deasphalted oil, forming upgraded products of lower boiling hydrocarbons. In the separation zones which operates at a temperature within 20° F. and a pressure within 10 psi of the pressure in the contacting zones, upgraded products are removed overhead and optionally, further treated in an in-line hydrotreater.
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Powers Christopher Alan
Reynolds Bruce
Chevron U.S.A. Inc.
Nguyen Tam M
LandOfFree
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