Mineral oils: processes and products – Products and compositions – Fuels
Reexamination Certificate
2005-01-18
2005-01-18
Griffin, Walter D. (Department: 1764)
Mineral oils: processes and products
Products and compositions
Fuels
C208S014000, C208S016000
Reexamination Certificate
active
06843905
ABSTRACT:
The invention relates to a process for forming a low-sulfur motor gasoline and the product made therefrom. In one embodiment, process involves separating a catalytically cracked naphtha into at least a light fraction boiling below about 165° F. and a heavy fraction boiling above about 165° F. The light fraction is treated to remove sulfur by a non-hydrotreating method, and the heavy fraction is hydrotreated to remove sulfur to a level of less than about 100 ppm.
REFERENCES:
patent: 6610197 (2003-08-01), Stuntz et al.
Halbert Thomas R.
Stuntz Gordon F.
Welch Robert C. W.
Arnold Jr. James
ExxonMobil Research and Engineering Company
Griffin Walter D.
Hughes Gerard J.
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