Method for drying particulate law rank coal in a fluidized bed

Details Method for drying particulate law rank coal in a fluidized bed Method for drying particulate law rank coal in a fluidized bed

1984-03-29

1986-02-18

Camby, John J.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

44 10J, 34 13, 432 17, F27B 1500, F26B 700, C10L 500

Patent

active

045711747

ABSTRACT:
An improved method for drying particulate low rank coal in a fluidized bed wherein the improvement comprises flowing hot fluidizing gas of varying temperatures upwardly through the fluidized bed so that the hottest fluidizing gas flows upwardly through the coal nearest the coal inlet and the coolest fluidizing gas flows upwardly through the coal nearest the dried coal outlet from the fluidized bed.

REFERENCES:
patent: 2057681 (1936-10-01), Harrington
patent: 3980447 (1976-09-01), Franke et al.
patent: 4495710 (1985-01-01), Ottoson

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