Fluidized bed reactor with open reaction gas input and method of

Details Fluidized bed reactor with open reaction gas input and method of Fluidized bed reactor with open reaction gas input and method of

1980-08-18

1982-10-19

Silverberg, Sam

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

427 6, 427213, 118303, 118716, 138 39, 2395903, B05B 1724

Patent

active

043546358

ABSTRACT:
The reaction gas throughout of the supply duct feeding gas to the bottom of a fluidized bed reactor of the kind shown in U.S. Pat. No. 4,153,004, issued May 8, 1979, is increased by providing the reaction gas supply tube in the form of a bundle of tubes of small cross-section of about 2 mm diameter. Subdivision of the supply tube into hexagonal ducts in honeycomb arrangement maximizes the useful cross-sectional area of the supply tube. With the smaller elemental tube diameters, a higher rate of flow is maintainable without loss of laminar flow behavior, which behavior is maintained in the jet issuing from the subdivided reaction gas supply duct as it flows towards the constricted entrance into the fluidized bed container while being surrounded by a sheath of inert carrier gas supplied by an annular duct surrounding the reaction gas tube. It is thus possible to increase the input of reaction gas without increasing the diameter of the jet or loss of the laminar flow characteristics necessary to prevent the reaction gas from making deposits that would interfere with the introduction of gas into the bottom of the bed.

REFERENCES:
patent: 4153004 (1979-05-01), Barnert

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