Method for stabilizing particulate low rank coal in a fluidized

Details Method for stabilizing particulate low rank coal in a fluidized Method for stabilizing particulate low rank coal in a fluidized

1983-08-01

1985-01-29

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

44 10J, 432 15, F26B 308, C10L 500, F27B 1500

Patent

active

044957106

ABSTRACT:
An improved method for drying particulate low rank coal in a fluidized bed wherein the improvement comprises fluidizing the coal above a first portion of a gas flow distributor using a hot fluidizing gas and fluidizing the coal above a second portion of the gas flow distributor with a recycle gas stream at a temperature less than about 200.degree. F. wherein the second portion of the gas flow distributor is located near the coal discharge from the coal drying zone to cool overheated coal particles.

REFERENCES:
patent: 3745668 (1973-07-01), Vian-Ortuno et al.
patent: 4324544 (1982-04-01), Blake
patent: 4396394 (1983-08-01), Li et al.

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