| 摘要 |
<p>A process for the regeneration and reactivation of a supported platinum group metal catalyst comprises treating the at least partially deactivated catalyst during the normal operationof a reforming process with chlorine and/or a decomposable chlorine containing compound to an extent exceeding any chlorine treatment just preceding, then discontinuing the reformation process and removing carbonaceous deposites from the catalyst by burning in the presence of a gas containing oxygen, and then maintaining the catalyst at an average temperature higher than the burning temperature, in the presence of a gas having a higher oxygen content than the gas used in the carbon burning. Specified platinium group metals are Pt and Pd. The chlorine treatment may be effected by addition of trichlorethylene or ethylene dichloride to the hydrocarbon feed. Additionally the catalyst may contain fluorine and may be given a water treatment.</p> |
