Method and cleaning apparatus for removal of SOx and NOx from exhaust gas
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United States of America Patent
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Apr 25, 2017
Grant Date -
Nov 12, 2015
app pub date -
Jan 24, 2014
filing date -
Jan 28, 2013
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Abstract
A method for removal of SOx and NOx from an exhaust gas that contains SOx, NOx, soot and water vapor, the exhaust gas originating from a combustion of a fuel where the combustion takes place in an internal combustion engine. The exhaust gas is passed through at least one catalytic reactor having an oxidation catalyst, in which catalytic reactor at least SO2 is converted to SO3 and NO is converted to NO2. Thereafter the exhaust gas is passed through a condenser and cooled to a temperature which is below the dew point temperature of the water in the condenser such that SO3, NO2 and water is condensed and SO3 and NO2 is dissolved into the condensed water and removed from the exhaust gas.
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