Dual phase fuel vaporizing combustor

Details Dual phase fuel vaporizing combustor Dual phase fuel vaporizing combustor

1978-03-16

1981-01-06

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

60738, F02C 722

Patent

active

042428637

ABSTRACT:
A dual phase fuel vaporizing combustor, and method for burning, in an annular vaporizing combustor, high viscosity, high carbon/hydrogen ratio hydrocarbon fuels, including such as residual fuels, low grade synfuels and coal-oil slurries. A dual phase vaporizer tube receives alternating introductions of a fuel air mixture of high fuel content, and then a hot air or low fuel content mixture, to alternately initially discharge from the tube a vapor stream of combined air and partially vaporized fuel, the initial vapor stream impinging onto a hot surface where more volatile portions of fuel will vaporize and burn, while less volatile heavier fuel components will form a hot carbon deposit on the surface; and alternately and sequentially discharge from the tube a hot, highly oxidizing stream with little or no fuel and impinge the sequential stream onto the carbon deposit on the hot surface and thereby promote substantial burning of the carbon.

REFERENCES:
patent: 2706889 (1955-04-01), Allen et al.
patent: 3398528 (1968-08-01), Nakamura et al.
patent: 3851462 (1974-12-01), Vranos
patent: 4085581 (1978-04-01), Carvel et al.

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