Method and device for removal of NO.sub.x from engine exhaust

Details Method and device for removal of NO.sub.x from engine exhaust Method and device for removal of NO.sub.x from engine exhaust

1997-12-11

1999-08-24

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing nonmetal element

205763, 2042431, 204270, C25C 100

Patent

active

059420995

ABSTRACT:
An apparatus and method for removing NO.sub.x from the exhaust of internal combustion engines. The apparatus has a porous absorbent body saturated with a liquid alkaline electrolyte for absorption of NO.sub.x as nitrate and nitrite, in which body electrodes are distributed pairwise for electrochemical decomposition of the nitrate and nitrite to form nitrogen. The method uses the apparatus of the invention to decompose nitrates and nitrites into diatomic nitrogen.

REFERENCES:
patent: 3847672 (1974-11-01), Trocciola et al.
patent: 4617029 (1986-10-01), Pez et al.
patent: 4738760 (1988-04-01), Marianowski et al.
patent: 4908113 (1990-03-01), Marianowski et al.

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