Method of removing alkali metal contamination from a gaseous str

Details Method of removing alkali metal contamination from a gaseous str Method of removing alkali metal contamination from a gaseous str

1980-12-22

1982-07-20

Clements, Gregory N.

Gas separation

Means within gas stream for conducting concentrate to collector

55 5, 55 75, B01D 5312

Patent

active

043403999

ABSTRACT:
A method is described for effecting the removal of alkali metal contaminants from a super heated gaseous mixture useful in power generation. Finely divided refractory oxide particles are introduced into the hot gaseous mixture without effecting a substantial reduction in the temperature and operating efficiency of the system. The alkali metal contaminants are substantially removed from the hot gaseous mixture by being adsorbed onto the surface of the finely divided refractory oxide particles.

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patent: 4239504 (1980-12-01), Polizzotti et al.
patent: 4256703 (1981-03-01), Dixit et al.
patent: 4294588 (1981-10-01), Polizzotti et al.
Formenti et al., "Preparation of Ultrafine Metal Oxide Particles," published in J. Of Colloid & Interface Sci., vol. 39, Apr. 1972.
Juillet et al., "Inorganic Oxide Aerosols", published in Faraday Symposia of the Chem. Soc., No. 7, 1973, pp. 57-76.
Lee et al., "Regeneration of Activated Bauxite", published by The American Society of Mech. Eng., #80-GT-165, Jan 1980.
Lee et al., "Removal of Gaseous Alkali Metal," published by The Am. Soc. of Mech. Eng., #79-GT-154, Jan. 1979.
Formenti et al., "Preparation in a Hydrogen-Oxygen Flame", Journal of Colloid and Interface Science, vol. 39, Apr. 1972 pp. 79-89.
Regeneration of Activated Bauxite Used as a Granular Sorbent for Removing Gaseous Alkali Metal Compounds from Hot Flue Gas, Lee et al, ASME Publication, 3/10/80.
Removal of Gaseous Alkali Metal Compounds from Hot Flue Gas by Particulate Sorbents, Lee et al. ASME Publication, 3/12/79.

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