Dorr-oliver Incorporated

Andrew Beaumont Steever

Walfred Wilhelm Jukkola

Richard E Svencer

Albert Vitin

A cyclone for use at elevated temperature and pressure has a refractory lining and a metallic vortex finder supported by a thermal sleeve.

Pressurized hot cyclone

A refractory constriction dome for a fluidized bed reactor is constructed to resist the upward thrust of pressure in the windbox as well as the weight of the fluidized bed. A reverse arch of refractory brick or tiles, forming the upper surface of the dome, is the structural feature which functions to resist upward thrust.

Refractory construction dome for fluidized bed reactor

A fluidized bed reactor is provided with vertically oriented heat exchange coils for controlling the temperature of the fluidized bed. Tuyere elements discharge fluidizing gas at a level substantially above the constriction plate. The bed solids below the level of the tuyere ports constitute a static layer during fluidization and the lower return bends of the heat exchange coils are embedded in this layer and so are shielded from erosion by the fluidized solids of the bed proper.

Heat exchanger for fluidized bed reactor

A fluidized bed reactor is provided with heat exchange coils for controllng the temperature of the fluidized bed. The heat exchange coils are vertically oriented and elements thereof pass through the constriction plate of the reactor. Multiple function Tuyere elements are provided which admit air into the reaction chamber from the windbox, provide for passage of elements of the heat exchange coils through the constriction plate, structurally support the heat exchange coils in position and constitute thermal sleeves for accommodating differential thermal expansion of the heat exchange coils and the constriction plate.

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Old Greenwich, CT, United States of America

Andrew Beaumont Steever