Control of bed expansion in expanded bed reactor

US4684456A · kind A · utility

Assignee

• Lummus Crest Inc. · US

Inventors

• Roger P. Van Driesen · Titusville, US
• William R. Adams · Paducah, US
• John Caspers · Berkeley Heights, US
• Mario Baldasarri · Paramus, US
• Harold J. Trimble · Panama City Beach, US

Key dates

• Filing date: Dec 20, 1985
• Grant date: Aug 4, 1987
• Expiry date: Dec 20, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7306
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In an expanded bed reactor, the expansion of the bed is automatically controlled by automatically changing the rate of speed of a recycle pump for the reactor. The bed is preferably provided with both high and low level bed detectors, and a further detector for determining abnormally high levels.