Patent ID: 6058858
Filing Date: 2000-05-09
Classification: F22B,F23C

Abstract:
A circulating fluidized bed reactor, comprising:a reactor enclosure defined by side, front and rear enclosure walls and having an unobstructed bottom portion, an unobstructed upper portion, and two exit openings, one exit opening located in the upper portion on the front enclosure wall and the other exit opening located in the upper portion on the rear enclosure wall;primary, impact-type particle separator means located within the upper portion of the reactor enclosure at both exit openings, for collecting particles entrained in a gas flowing within the reactor enclosure from the lower portion to the upper portion thereof and causing the particles entrained with the gas flowing within the reactor enclosure to fall towards the bottom portion of the reactor enclosure;particle-receiving means, connected to each of the primary, impact-type particle separator means at both exit openings, and located entirely within the upper portion of the reactor enclosure, for receiving collected particles as the collected particles fall from the primary, impact-type particle separator means; andreturning means, particles connected to each of the particle-receiving means at both exit openings and located entirely within the reactor enclosure, for returning particles from the particle-receiving means directly and internally into the bottom portion of the reactor enclosure so that the received particles from the particle-receiving means free fall unobstructed and unchanneled down along the enclosure walls to the bottom portion of the reactor enclosure for subsequent recirculation.