Multistage hydroprocessing using bulk multimetallic catalyst

US6582590B1 · kind B1 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Kenneth L. Riley · Baton Rouge, US
• Darryl P. Klein · Ellicott City, US
• Zhiguo Hou · Fairfax, US
• Stuart L. Soled · Pittstown, US
• Michael C. Kerby · Center Valley, US
• Gary B. McVicker · Califon, US
• Edward S. Ellis · Berkeley Heights, US
• Michele S. Touvelle · Baton Rouge, US
• Sabato Miseo · Pittstown, US

Key dates

• Filing date: Aug 22, 2001
• Grant date: Jun 24, 2003
• Expiry date: Aug 22, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Sulfur content of distillate feedstock, which is greater than 3,000 wppm, is reduced using multi-stage hydrodesulfurization by reacting the feestream in stages with reaction zone(s) containing bulk multimetallic catalyst comprised of Group VIII non-noble metal(s) and at least two group VIB metals. The ratio of Group VIB to Group VIII non-noble metals is 10:1 to 1:10.