Process for producing a solid, finely divided fuel based on coal

Details Process for producing a solid, finely divided fuel based on coal Process for producing a solid, finely divided fuel based on coal

1989-06-09

1990-11-06

Dees, Carl F.

Fuel and related compositions

With combustion improver

Sulfur bindant

44641, C10L 1000

Patent

active

049683241

ABSTRACT:
Solid, finely divided fuels based on coal with a particle size distribution according to which at least 90% of the particles have a size of less than 90 .mu.m, whereby the fuel contains 0.1 to 5 wt % calcium compounds and 0.01 to 1 wt % of a halogen-free and sulfur-free water-soluble iron compound, each based on dry weight, plus calcium and iron, permit an effective reduction n nitrogen oxide emissions in combustion gases when produced in such a way that the coal is impregnated with a 5 to 60 wt % aqueous solution of the iron salt and separately from that is also impregnated with a 10 to 75 wt % solution or suspension of calcium hydroxide and water in the absence of briquetting or pelletizing binders and then is milled in a milling and drying installation and dried to a water content of less than 1 wt %.

REFERENCES:
patent: 3800466 (1974-04-01), Heit
patent: 4307207 (1981-11-01), Paspek
patent: 4526703 (1985-07-01), Gebhard
patent: 4824441 (1989-04-01), Kindig

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