Patent ID: 7645430
Filing Date: 2010-01-12
Classification: B01D

Abstract:
1. A horizontal duct scrubbing system for removing gaseous pollutant from a gas, the horizontal duct scrubbing system comprising: (a) a horizontally disposed housing having a waste gas inlet for receiving a gas stream and a treated gas outlet for discharging the gas stream, wherein the gas stream includes at least some gaseous pollutants when it enters the waste gas inlet; (b) a liquid inlet manifold disposed within the horizontally disposed housing, the liquid inlet manifold comprising a plurality of nozzles oriented to spray a scrubbing liquor co-current to the flow of the gas stream; (c) a demister located proximal the treated gas outlet, wherein the horizontally disposed housing is substantially free of flow deflection members between the liquid inlet manifold and the demister; and (d) a cooling spray proximal the waste gas inlet and upstream of the liquid inlet manifold, wherein the cooling spray is configured to pre-humidify the gas stream.