Fluidized bed reactor

US4900516A · kind A · utility

Assignee

• A. Ahlstrom Corporation · FI

Inventors

• Folke Engstrom · San Diego, US
• Seppo Ruottu · Karhula, FI

Key dates

• Filing date: Sep 15, 1986
• Grant date: Feb 13, 1990
• Expiry date: Sep 15, 2006

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23J2900/15026
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A circulating fluidized bed reactor having a reactor chamber for containing fluidizing gas having entrained therein particulate material; a horizontal cyclone having a circumferential wall defining a separator chamber operatively connected at the reactor chamber for separating the material from the gas; a return pipe connected at the separator chamber of the cyclone at the circumference thereof for returning the separated material from the separator chamber to the reactor; and means for discharging the purified gas located in at least one end of the separator chamber of the cyclone. Preferably the separator chamber is located above the reactor chamber and the return pipe is connected at the lowermost point of the circumference of the separator chamber. The reactor is useful as combustor, gasifier and for the carrying out of chemical process.