Process for the removal of nitrogen oxides and soot from exhaust gases of machines and combustion installations burning heavy fuel oil
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United States of America Patent
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Jan 19, 1988
Grant Date -
N/A
app pub date -
May 6, 1986
filing date -
May 7, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the removal of nitrogen oxides and soot from exhaust gases from machines and combustion installations burning heavy fuel oil by means of free-passage catalysts at increased temperatures with the addition of ammonia into the exhaust gas stream ahead of the catalysts. To make the process mre effective, the soot adhering to the catalyst surfaces is removed by burning it off and/or by friction resulting from the admixture of sand, ash or similar abrasive mixtures into the exhaust gas stream ahead of the catalysts.
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