Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1994-10-05
2000-06-13
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
42324401, 42324408, 4232451, B01J 800
Patent
active
060746203
ABSTRACT:
A powdered medium for the cleaning of exhaust gases, e,g. smoke and gases from industrial chimneys, employing the principle of dry adsorption, which includes a mixture of activated cokes with inert materials which have no dust explosiveness To prepare a mixture containing powdered activated cokes, in which mixture the concentration of carbon is up to 30% by weight and which when used in the airstream process under essentially all operating conditions, is not subject to virtually any fluctuations in concentration such that with a concentration of oxygen up to 21% by volume, no dust-explosive fractions can form, at least one inert material component in the mixture is matched in terms of its grain size distribution to the grain size distribution of the activated coke component, so that in a gas medium at rest, the speed of vertical descent of the coarse grain of the inert material components is substantially equal to or greater than the speed of vertical descent of the coarse grain of the activated coke components. The powdered medium can be used in essentially all exhaust gas cleaning systems, in separately operated or upstream or downstream adsorption stages employing the airstream principle.
REFERENCES:
patent: 4372927 (1983-02-01), McCullough
patent: 4636379 (1987-01-01), Bestek et al.
patent: 5306475 (1994-04-01), Fichtel et al.
Grant, Grant and Hackh's Chemical Dictionary, 1987 (no month) p. 303.
Hoberg Heinz
Kienow Ekkehard
Morun Bernd
Schwertmann Thomas
Dunn Jr. Thomas G.
Rheinische Kalksteinwerke GmbH
Straub Gary P.
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