Method and apparatus for purification of exhaust gases
AssigneePittsburgh Environmental and Energy Systems, Inc.
InventorsHenry C. Bramer, Edward Shapiro
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Abstract
A process and apparatus are provided whereby sulfur and nitrogen oxides as well as carbon monoxides and unburned hydrocarbons are removed from internal combustion engine exhaust gases. The gases are passed through a chamber containing a sulfide and an oxide of iron, copper or zinc. The system is partially self-regenerating and can be used in conjunction with present catalytic converter units or in lieu thereof. In certain embodiments the present invention can also replace muffler units in exhaust systems.
Claims10
A device for the removal of carbon monoxide, sulfur and nitrogen oxides from internal combustion engine exhaust which comprises a chamber which is a tubular conduit in which said exhaust enters at one end and exits at the other end containing a sulfide and an oxide of a metal or metals selected from the group consisting of iron, copper and zinc.
Dependencies are inferred from the claim text.