Hydroconversion processes employing multi-metallic catalysts and method for making thereof

US8173570B2 · kind B2 · utility

Assignee

• CHEVRON U.S.A. INC. · US

Inventors

• Theodorus Ludovicus Michael Maesen · Richmond, US
• Alexander E. Kuperman · Orinda, US
• Bi-Zeng Zhang · Albany, US
• Andrew Rainis · Walnut Creek, US
• Christopher Dillon · Waterford Township, US

Key dates

• Filing date: Oct 28, 2008
• Grant date: May 8, 2012
• Expiry date: Oct 28, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/847
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.