Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1979-07-13
1981-02-03
Kratz, Peter F.
Gas: heating and illuminating
Processes
Fuel mixtures
48206, 55 80, 122 7R, 252373, C10J 346, C10K 102
Patent
active
042486041
ABSTRACT:
Coal or other high ash containing carbonaceous solid fuel is reacted with a free-oxygen containing gas, with or without a temperature moderator, in a down-flow partial oxidation gas generator to produce a stream of raw synthesis gas, fuel gas, or reducing gas. A large portion of the combustion residue, i.e., molten slag and/or particulate solids that is entrained in the down-flowing generated gas stream is removed by gravity when the gas stream is passed through a diversion chamber where the velocity of the gas stream is reduced and its direction is diverted. The main gas stream leaving the diversion chamber through the side outlet passes upward through a solids separation zone, optionally including gas-gas quench cooling, cyclones, filters, impingement separators, or combinations thereof, where additional entrained solids are removed and where some cooling of the gas stream may be effected by impingement with a cooled cleaned recycle portion of the gas stream. Next, most of the sensible heat in the gas stream is recovered by the production of steam. The gas stream, with a substantially reduced solids content, is passed through the tubes of one or more shell-and-straight fire tube gas coolers.
REFERENCES:
patent: 2699384 (1955-01-01), Peery et al.
patent: 3963457 (1976-06-01), Hess
patent: 4074981 (1978-02-01), Slater
patent: 4121912 (1978-10-01), Bailey et al.
Beall James F.
Dach Michael M.
Kaufman Harold C.
Woldy Paul N.
Brent Albert
Kratz Peter F.
Kulason Robert A.
Ries Carl G.
Texaco Inc.
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