| 摘要 |
This invention concerns a method of regenerating hydroprocessing catalyst. The invention deals with a method of regenerating hydroprocessing catalyst contained within a reactor, said catalyst having been deactivated by "coke" deposition, comprising: passing into an inlet of said reactor, through said catalyst to be regenerated, and out an outlet of said reactor, a stream of substantially inert gases initially containing about 0.1 to 4.0 volume percent oxygen at an initial temperature of about 600 DEG to 1200 DEG F, a pressure of at least about 100 psig and a space velocity of at least about 50 GHSV; and increasing said oxygen concentration to about 1.0 to 10.0 volume % and/or increasing the temperature to about 800 DEG to 1200 DEG F upon detection of oxygen at said outlet of said catalyst containing reactor.
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