Iron oxide sorbents for regenerative sorption of No.sub.x

Details Iron oxide sorbents for regenerative sorption of No.sub.x Iron oxide sorbents for regenerative sorption of No.sub.x

1973-11-21

1976-04-27

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

423239, B01D 5300

Patent

active

039535754

ABSTRACT:
The use of iron oxide sorbents to remove oxides of nitrogen (NO.sub.x) from gaseous mixtures containing small amounts of NO.sub.x such as the exhaust from an internal combustion engine or flue gases, without interference from carbon oxides or water vapor and thermally regenerable at relatively low temperatures, are disclosed. A preferred sorbent is supported ferric oxide for sorption of NO.sub.x from gaseous mixtures containing oxygen. Ferrous or ferrosoferric oxide sorbents are also suitable in the presence or absence of oxygen.

REFERENCES:
patent: 2839356 (1958-06-01), Karl
patent: 3382033 (1968-05-01), Kitagawa
"Chemical Abstracts;" Vol. 56, 1962 pp. 3743 g.

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