Catalyst for producing ammonia by converting nitrogen oxides used in vehicles comprises a solid component containing a precious metal on a finely divided and/or microporous support material

摘要

Catalyst for producing ammonia by converting nitrogen oxides comprises a solid component containing a precious metal on a finely divided and/or microporous support material. An Independent claim is also included for a process for reducing the nitrogen oxide content of an I.C. engine exhaust gas comprising reducing the nitrogen oxides with ammonia on a nitrogen oxides reduction catalyst. The ammonia used is produced using the above catalyst.