Process for the removal of nitrogen oxides and soot from exhaust

Details Process for the removal of nitrogen oxides and soot from exhaust Process for the removal of nitrogen oxides and soot from exhaust

1986-05-06

1988-01-19

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232132, 4232135, B01J 3700

Patent

active

047203765

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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