Gasoline sulfur reduction in fluid catalytic cracking

US6482315B1 · kind B1 · utility

Assignee

• W.R. Grace & Co.-Conn. · US

Inventors

• Terry G. Roberie · Ellicott City, US
• Ranjit Kumar · Clarksville, US
• Michael S. Ziebarth · Columbia, US
• Wu-Cheng Cheng · Ellicott City, US
• Xinjin Zhao · Woodbine, US
• Nazeer A. Bhore · Wilmington, US

Key dates

• Filing date: Aug 28, 2000
• Grant date: Nov 19, 2002
• Expiry date: Aug 28, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a non-molecular sieve support containing a high content of vanadium. Preferably, the support is alumina. The sulfur reduction catalyst is used in the form of a separate particle additive in combination with the active catalytic cracking catalyst (normally a faujasite such as zeolite Y) to process hydrocarbon feedstocks in the fluid catalytic cracking (FCC) unit to produce low-sulfur gasoline and other liquid products.