Circulating fluid bed reactor with improved circulation

US8435452B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• John T. Wyatt · Winston-Salem, US
• E. Nicholas Jones · Centreville, US
• Alvin U. Chen · Fairfax, US
• Clay R. Sutton · Redondo Beach, US
• Timothy M. Healy · Centreville, US
• Ronald Suryo · Fairfax, US
• Len Lampert · Calgary, CA
• Jonathan Logan Miller · Ware, US

Key dates

• Filing date: Feb 17, 2011
• Grant date: May 7, 2013
• Expiry date: May 19, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2300/1077
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A circulating fluid bed reactor such as that used in fluid coking processes has a circular dense bed reaction section above the reactor base where the fluidizing gas is injected and a plurality of frusto-conical baffles in the dense bed reaction section, each of which depends downwardly and radially inwards from the reactor wall to a lower, inner edge defining a central aperture. The baffles are preferably provided with downcomers which permit downward flow of solids and upward flow of gas through the baffles.