Methods of treating and sulfiding hydroconversion catalysts
AssigneeChem32, LLC
InventorsSoren Marklund, Douglas G. Wene
Life of this patent
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Abstract
Methods of treating hydroconversion catalysts used for cracking of hydrocarbons are described. A method can include mixing an inactive hydroconversion catalyst with a solid hydrocarbon containing material having a melting point of 50° C. or greater. The inactive hydroconversion catalyst/solid hydrocarbon containing material mixture can be contacted with a gaseous stream that includes hydrogen (H2) and a sulfur-containing compound under conditions sufficient to sulfide the catalyst and carbonize at least a portion of the hydrocarbon containing material on the sulfided catalyst to obtain a treated sulfided hydroconversion catalyst.
Claims25
A treated sulfided hydroconversion catalyst, wherein the treated sulfided hydroconversion catalyst comprises 2 wt % to 15 wt % carbon produced from carbonation and is prepared by the following steps:
- (a) combining an inactive hydroconversion catalyst with a solid hydrocarbon containing material having a melting point of 50° C. or greater to produce an unsulfided hydroconversion catalyst/solid hydrocarbon containing material mixture;
- and
- (b) sulfiding the inactive hydroconversion catalyst by contacting the unsulfided hydroconversion catalyst/solid hydrocarbon containing material mixture with a gaseous stream comprising hydrogen (H2) and a sulfur-containing compound at a temperature sufficient to sulfide the inactive hydroconversion catalyst and carbonize at least a portion of the solid hydrocarbon containing material on the sulfided inactive hydroconversion catalyst, thereby providing a treated sulfided hydroconversion catalyst further comprising the solid hydrocarbon containing material wherein at least a portion of the solid hydrocarbon containing material is carbonized.
Dependencies are inferred from the claim text.