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U.S. Department of Energy
Office of Scientific and Technical Information

Process for utilizing petroleum residuum

Patent ·
OSTI ID:5390782
A petroleum refinery vacuum residuum stream is subjected to hydrogen donor diluent cracking, and the liquid cracking effluent is hydrodesulfurized. The hydrodesulfurizer effluent is then fractionated, and the fractionator bottoms stream is fed to a delayed coker where premium type delayed coke is produced. The gas oil boiling range fraction from the fractionator is utilized as the donor diluent in the cracking step.
Assignee:
Conoco, Inc.
Patent Number(s):
US 4176046
OSTI ID:
5390782
Country of Publication:
United States
Language:
English