Coal combustion method and apparatus

Details Coal combustion method and apparatus Coal combustion method and apparatus

1989-01-30

1990-08-07

Yuen, Henry C.

Furnaces

With exhaust gas treatment means

Afterburning means

110244, F23G 706

Patent

active

049458400

ABSTRACT:
This invention is directed to an apparatus for the combustion of coal comprising a heated tubular reactor having combined air and granular coal inlet means for tangentially introducing air and granular coal into the reactor, external heating means, insulation means, and an outlet means wherein the coal is partially burned in the heated tubular reactor to a temperature 50 to 100 degrees Fahrenheit below the fusion temperature of the ash produced from the coal to be used to produce partial combustion products composed of coke, ash and combustion gases. The partially combusted products exiting from the tubular reactor are tangentially introduced with additional air into a second tubular reactor where they are completely burned.

REFERENCES:
patent: 3500775 (1970-05-01), Hubbard
patent: 4159000 (1979-06-01), Iwasaki et al.
patent: 4475472 (1984-10-01), Adrian et al.
patent: 4481889 (1984-11-01), Sikander et al.
patent: 4716842 (1988-01-01), Williams
patent: 4724780 (1988-02-01), Hoffert et al.
patent: 4779545 (1988-10-01), Brean et al.

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