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US 4,309,392 AGranted
Process for removing nitrogen oxides from a gas stream
AssigneeThe Standard Oil Company
InventorsWilfrid G. Shaw, Christos Paparizos, Louis J. Velenyi
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Abstract
The invention herein is directed toward a process for the conversion of oxides of nitrogen to nitrogen gas by employing a reactant carbon fiber or inter host carbon material at a temperature of about 550.degree. C. The reactant material can be utilized alone or on a support material; in reactors such as fixed bed, fluid bed and radial flow; and, if desired, can be regenerated during the conversion process.
Claims6
A process for converting oxides of nitrogen to nitrogen gas comprising the step of:
- passing the oxide of nitrogen over a reactant carbon fiber material at a temperature of from about 450.degree. C. to about 750.degree. C.;
- said reactant carbon fiber material comprising a reduced metal, selected from the group consisting of iron, nickel and cobalt, and carbon fibers deposited thereon wherein the carbon content of said fibers is from about five to about 98 percent by weight based upon the weight of said reactant carbon fiber material.
A continuous process for converting oxides of nitrogen to nitrogen gas comprising the step of:
- passing the oxide of nitrogen with a carbon-containing gas over a reactant carbon fiber material at a temperature of from about 450.degree. C. to about 700.degree. C.;
- said reactant carbon fiber material comprising a reduced metal, selected from the group consisting of iron, nickel and cobalt, and carbon fibers deposited thereon wherein the carbon content of said fibers is from about five to about 98 percent by weight based upon the weight of said reactant carbon fiber material.
Dependencies are inferred from the claim text.