NO.sub.x adsorption and removal apparatus
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United States of America Patent
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Jun 3, 1997
Grant Date -
N/A
app pub date -
Aug 17, 1994
filing date -
Aug 24, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention discloses a NOx adsorption and removal apparatus employed in the method of passing NOx containing gas into the adsorber 1 filled with NOx adsorbent to adsorb a specific volume of NOx on the adsorbent, passing hot air into the adsorber to desorb NOx, and regenerating the adsorbent, wherein the adsorber is divided in plural zones arranged parallel in the gas flow direction. In this invention, by regenerating after adsorbing NOx in each zone, the regenerating apparatus can be reduced in size, and the energy may be saved by effective utilization of preheat.
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