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United States of America Patent
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May 24, 1983
Grant Date -
N/A
app pub date -
May 13, 1981
filing date -
May 13, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for cracking a carbo-metallic oil feed having an initial boiling point of about 450.degree. F. or below comprising a naturally-occurring crude or a portion of such crude, including a portion boiling above 1000.degree. F. The 650.degree. F. portion is characterized by a carbon residue on pyrolysis of at least about 1 and containing at least about 4 ppm of Nickel Equivalents. The process comprises bringing the feed under cracking conditions in a progressive flow-type reactor into contact with a cracking catalyst bearing more than about 1500 parts per million of Nickel Equivalents of heavy metal(s). At least about 70% by weight of catalyst is abruptly separated from at least about 80% of the cracked products at the end of the reactor chamber.
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