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U.S. Department of Energy
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Processing shale oil cuts by hydrotreating and removal of arsenic and/or selenium

Patent ·
OSTI ID:6354232
A method for processing shale oil to remove both nitrogen and impurities such as arsenic and/or selenium shile minimizing such removal costs comprises fractionating the shale oil feed to form a first naphtha cut which essentially boils at or below 350/sup 0/F and a gas oil cut which essentially boils above 350/sup 0/F, hydrotreating the first naphtha cut, separately removing a substantial amount of said impurity from the gas oil cut and then hydrotreating the gas oil cut is fractionated to form a second naphtha cut which essentially boils above 380/sup 0/F and at or below 450/sup 0/F and has a high nitrogen content, and hydrotreating the second naphtha cut to reduce the nitrogen content.
Assignee:
Atlantic Richfield Co.
Patent Number(s):
US 4133745
OSTI ID:
6354232
Country of Publication:
United States
Language:
English