Liquid heaters and vaporizers – Miscellaneous
Patent
1982-04-20
1984-07-03
Favors, Edward G.
Liquid heaters and vaporizers
Miscellaneous
110245, 110263, 16510416, 431 7, 431120, F22B 100
Patent
active
044572891
ABSTRACT:
A method of operating a fast fluidized bed reactor according to the invention comprises: (1) providing a fluidized bed reactor having an upper and a lower region, the upper region having a cylindrical shape; (2) feeding matter to be reacted into the lower region of the reactor; (3) supplying a first stream of pressurized air to the reactor in the lower region at a velocity to fluidize the granular material in the circulating regime, a portion of the granular material is continually entrained into the upper region; (4) tangentially supplying a second stream of pressurized air to the upper region wherein, at maximum operating capacity for the reactor, the second stream of air constitutes in excess of about 50% of the total pressurized air fed to the reactor; (5) maintaining a Swirl number of at least about 0.6 and a Reynolds number of at least about 18,000 in the upper region for providing a cyclone of turbulence which increases the rate of reaction in the reactor; and (6) permitting the reaction gases in the upper region to exit from the reactor through an exit throat, while retaining substantially all of the granular material within the reactor. In accordance with the invention, cyclone particle separators are not required.
Apparatus suitable for use in practicing the above-recited method are also disclosed.
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Favors Edward G.
Warner Steven E.
York-Shipley, Inc.
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