Method for coprocessing coal and oil

Details Method for coprocessing coal and oil Method for coprocessing coal and oil

1990-11-28

1992-09-08

Medley, Margaret

Fuel and related compositions

Coal treating process or product thereof

Removal of undesirable

34 9, C10L 908, C10L 910

Patent

active

051454890

ABSTRACT:
A process for simultaneously improving the fuel properties of coal and oil is described.
In the first step of this process, two fluidized beds are provided. The first fluidized bed has a fluidized density of from about 20 to about 50 pounds per cubic foot and is at a temperature of from about 850 to about 1,000 degrees Fahrenheit. The second fluidized bed is similar to the first but is at a slightly higher temperature.
Coal and oil are fed into the first fluidized bed. A portion of the coal/oil mixture from the first bed is fed to the second bed, wherein it is combusted. Combustion product from the second bed is fed to the first bed.

REFERENCES:
patent: 3985517 (1976-10-01), Johnson
patent: 4325311 (1982-04-01), Beranek et al.
patent: 4504274 (1985-03-01), Anderson

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