Method of and apparatus for controlling the temperature of a fluidized bed reactor

Abstract

Method of and apparatus for controlling the temperature of a fluidized bed reactor (10), comprising separator means (16) for separating first solid particles from the fluidized bed reactor; a return duct (30) for returning a first portion of the first solid particles to the fluidized bed reactor; a discharge duct (50) for the discharge of a second portion of the first solid particles and an inletduct (52) for transferring second solid particles from a second fluidized bed reactor to said fluidized bed reactor, in which the return duct (30) and the inlet duct (52) share a common end 10 portion (54) for transferring a mixture of solid particles, formed of the first portion of the first solid particles and the second solid particles, to the fluidized bed reactor (10). Said apparatus also preferably comprises a fluidized mixing device (58) for mixing the first portion of the solid particles and the second solid particles with each other.

Description

technical field [0001] The invention relates to a method and a device for controlling the temperature of a fluidized bed reactor arranged in connection with a second fluidized bed reactor according to the preambles of the independent claims. [0002] Accordingly, the present invention relates in particular to an apparatus comprising separator means for separating first solid particles from a fluidized bed reactor; for returning a first portion of said first solid particles to said flow a return conduit for a fluidized bed reactor; a discharge conduit for removing a second portion of said first solid particles; and for transferring a second solid particle from a second fluidized bed reactor to said fluidized bed reactor the inlet conduit. Further, the present invention inter alia relates to a method wherein first solid particles are separated from said fluidized bed reactor; a first portion of said first solid particles are conveyed back to said fluidized bed reactor along a r...

AI Technical Summary

Problems solved by technology

Thus, fluidization of the bed material in a fluidized bed pyrolyzer produces a relatively uniform and stable process temperature, but in some instances it has been noted that a portion of the fuel in a fluidized bed pyrolyzer The reaction does not take place at the solution temperature, which leads to undesired chemical reactions and, for example, to reduced oil yields

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