US 4,733,621 A · Apparatus and methods for operating a fluidized bed reactor

Abstract

A fluidized bed reactor has a pair of cyclone separators which receive flue gas with entrained solids and wherein the solids are separated from the flue gas in the separators for flow into a fluidized distribution conduit. The flow of separated particles is divided into two particle streams and fluidizing air is introduced into the duct. The fluidized separated particles are then conveyed to the combustion chamber of the reactor through an upright conduit in turn connected to a downwardly inclined conduit connecting the combustion chamber with the fluidized separated particles in the duct. The downwardly inclined conduits are substantially equidistantly distributed along the lateral extent of the combustion chamber to provide even distribution of the solid separated particles with fuel mixed therein in the combustion chamber.

Claims20

Dependent claims

A method of operating a circulating fluidized bed reactor having a separator for removing entrained solid particles from the flue gas comprising the steps of:

(a) conducting particles separated in said separator for flow from said separator into a chamber;
(b) fluidizing said separated particles in said chamber;
(c) dividing the particles in said chamber into separate particle streams;
and
(d) introducing said separate particle streams into the fluidized bed reactor at different inlets thereto to distribute the separated particles substantially evenly along said fluidized bed reactor.

2 more elements

Dependencies are inferred from the claim text.

Apparatus and methods for operating a fluidized bed reactor

Life of this patent

Apparatus and methods for operating a fluidized bed reactor

Life of this patent

Abstract

Claims20