Method and apparatus for a regenerative heat exchanger for the treatment of pollutant-containing waste gases
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United States of America Patent
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Oct 21, 1997
Grant Date -
N/A
app pub date -
Jan 21, 1994
filing date -
Jan 23, 1993
priority date (Note) -
Expired
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Abstract
A method for a regenerative heat exchanger for the treatment of pollutant-containing waste gases which are in a heat exchange with another medium. The heat exchanger includes stationary or rotating storage masses which are at least partially of catalytic material and to which a reduction agent is supplied from the hot side thereof. A penetration of the reduction agent into the flue gas flow can be prevented by supplying the reduction agent directly to the catalyst separately from the pollutant-containing waste gases and without coming into contact with the remaining heating surfaces. For this purpose, a nozzle arrangement having at least one arm and extending over the entire radius of the heat exchanger may be arranged in both hood sides of the heat exchanger.
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