Crude oil cracking using partial combustion gases

US4264435A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Arthur E. Read, Jr. · Lake Jackson, US
• Milton S. Wing · Lake Jackson, US
• William P. Hancock · Brazoria, US

Key dates

• Filing date: May 29, 1979
• Grant date: Apr 28, 1981
• Expiry date: May 29, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G9/38
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Cracking of crude oil or crude oil residues is accomplished in an adiabatic reactor which follows a partial combustion zone with the injection of superheated or shift steam into the combustion gases. Advantages are that the carbon monoxide produced by partial combustion is converted to carbon dioxide which is easily removed, there is no need to supply a separate source of fuel or hydrogen, and coke formation is substantially eliminated. The cracked oil produced in the process can be used as a quench oil and/or fuel to feed the partial combustion zone. The yields of olefins and aromatics is increased over processes using superheated steam cracking.