Process of removing the ash from the gas produced by the combust

Details Process of removing the ash from the gas produced by the combust Process of removing the ash from the gas produced by the combust

1988-12-07

1990-02-27

Favors, Edward G.

Furnaces

Process

Treating fuel constituent or combustion product

55523, 110216, 110347, F23J 1100, F23J 1500

Patent

active

049036173

ABSTRACT:
Described is a process in which the liquid ash is removed from a combustion gas which is produced by a combustion of coal with air under a pressure between 2 to 30 bars, wherein the combustion gas at a temperature between 1200.degree. and 1700.degree. C. is passed through at least one porous gas-permeable filter element which is disposed in the combustion chamber. The combustion is effected with a C:O.sub.2 mole ratio of 1:0.6 to 1:0.99 and the filter element consists of carbon; carbides of boron, silicon, titanium, zirconium or hafnium; nitrides of boron, silicon, titanium, zirconium or hafnium; borides of titanium, zirconium or hafnium; and/or oxides of aluminum, silicon, magnesium or zirconium.

REFERENCES:
patent: 3615248 (1971-10-01), Holler, Jr.
patent: 4055125 (1977-10-01), Mallek
patent: 4444129 (1984-04-01), Ladt
patent: 4574711 (1986-03-01), Christian
patent: 4599952 (1986-07-01), Meier
patent: 4615283 (1986-10-01), Ciliberti et al.
patent: 4761323 (1988-08-01), Muhlratzer et al.
patent: 4772508 (1988-09-01), Brassell

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