Temperature controlled catalytic demetallization of hydrocarbons

US4729826A · kind A · utility

Assignee

• Union Oil Company of California · US

Inventors

• David A. Lindsay · Orange, US
• Michael C. Smith · San Clemente, US
• Walter Albertson · Brea, US
• Marvin J. Schwedock · Yorba Linda, US

Key dates

• Filing date: Feb 28, 1986
• Grant date: Mar 8, 1988
• Expiry date: Feb 28, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G65/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

In the catalytic processing of hydrocarbons, a hydrocarbon oil is successively contacted with a particulate catalyst in a first reaction zone and contacted at a higher temperature with a second portion of the particulate catalyst in the same reaction zone or in a second reaction zone.