Apparatus and process for flue gas desulphurization

摘要

An apparatus and process for removing sulphur components from flue gasses which include O2 and water vapor. The flue gasses are first heated to at least 1000 DEG F. Then H2 is added to the flue gasses for converting at least some of the SOx components to S and H2S. H2O is then sprayed into the flue gasses for precipitating particulate matter and for converting at least some of the H2S components into H2SO4. The resultant flue gasses are then filtered through lime rock for absorbing any H2S and H2SO4 components and for trapping any remaining particulate matter therein. Some of the NOx components may also be reduced using this process. An apparatus for effecting this process is also disclosed.