Furnaces – Process – Incinerating refuse
Patent
1988-12-16
1990-11-06
Favors, Edward G.
Furnaces
Process
Incinerating refuse
110229, 110188, F23G 512
Patent
active
049676733
ABSTRACT:
This counterflow mild gasification process and apparatus utilizes reverse or counterflow combustion to pyrolyze or dry and gasify a carbonaceous reactant, such as a solid fossil fuel or solid biological waste. The solid carbonaceous material fills an elongated combustion chamber where it is ignited to create an advancing combustion front. An oxidant is introduced such that it flows in a direction opposite the advance of the combustion front. The system temperature and velocity of combustion front are controlled by pressure, the purity of the oxidant, and the moisture content of the carbonaceous reactant, as well as by the inlet temperature and flow rate of the oxidant and the initial bed temperature of the carbonaceous reactant. For example, either increasing the pressure, increasing the purity of the oxidant, or decreasing the moisture content of the carbonaceous reactant reduces the system temperature of the combustion chamber and increases the combustion front velocity to result in higher quality end product gases, including hydrocarbons and methane.
REFERENCES:
patent: 1101925 (1914-06-01), Harris
patent: 3699903 (1972-10-01), King
patent: 3777676 (1973-12-01), Lagen
patent: 4052168 (1977-10-01), Koppelman
patent: 4069107 (1978-01-01), Kopelman et al.
patent: 4106999 (1978-08-01), Koppelman et al.
patent: 4126519 (1978-11-01), Murray
patent: 4127391 (1978-11-01), Koppelman
patent: 4129420 (1978-12-01), Koppelman
patent: 4330032 (1982-05-01), Koppelman et al.
patent: 4423688 (1984-01-01), Kuo
patent: 4477257 (1984-10-01), Koppelman et al.
patent: 4498909 (1985-02-01), Milner et al.
patent: 4579067 (1986-04-01), Peters
patent: 4584947 (1986-04-01), Chittick
patent: 4626258 (1986-12-01), Koppelman
patent: 4664678 (1987-05-01), Rehmat et al.
patent: 4732091 (1988-03-01), Gould
patent: 4823742 (1989-04-01), Davis et al.
"Upgrading Pow(d)er River Coal to K-Fuel for Shipment", by Russell C. Phillips and Robert G. Murray, as presented at American Mining Convention, Phoenix, Arizona, Sep. 26, 1984.
"Design of Fort Union K-Fuel Facility", by Russell C. Phillips, Nicholas G. Zervos, Robert G. Murray, Rudd F. Elbrech and Edward Koppelman, American Institute of Chemical Engineers, Houston, TX.
"LFC Process Description", SGI International, Undated.
"Coal Conversion Technology: Opportunities and Challenges", May by T. Y. Yan, Energy, vol. II, No. 11/12, pp. 1239-1247, May 1986.
"A Moving Bed Gasifies Coal More Effectively than Fixed and Fluidized Beds", an abstract from Chemical Engineering, Aug. 18, 1986.
Stanley Manahan, "Sorption Incineration of Chlorinated Hydrocarbons Acid, Heavy Metals, and Excess Nutrients in Water Using Coal-Derived Solids," Dec. 31, 1982 (the Manahan Report).
Favors Edward G.
Ferensic Denise L.
Young James R.
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