Radiation enhancement in oil/coal boilers converted to natural g

Details Radiation enhancement in oil/coal boilers converted to natural g Radiation enhancement in oil/coal boilers converted to natural g

1990-09-12

1991-09-17

Favors, Edward G.

Furnaces

Including fluid fuel burner

110264, 110347, F23D 102

Patent

active

050484338

ABSTRACT:
A coal-gas fuel composition, for use in furnaces and boilers which have been converted from oil or coal to natural gas, an apparatus and a method for burning said composition are disclosed. Conversions of oil or coal designed boilers to natural gas for environmental compliance can lead to an inbalance between radiative and convective heat transfer in the boiler. Co-firing natural gas with specially processed coal slurries can enhance the infrared radiation from the natural gas flame and help restore the balance intended in the original boiler design, without greatly decreasing the environmental performance of the boiler or furnace. Disclosed is a fuel composition comprising optimal ranges and proportions of constituent fuels, including a slurry comprising about 35% micronized additive, such as coal, and 65% No. 2 fuel oil.

REFERENCES:
patent: 2822864 (1958-02-01), Black
patent: 2941585 (1960-06-01), Loebel et al.
patent: 3124086 (1964-03-01), Sage et al.

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