Frishauf, Holtz, Goodman & Woodward
Method for removing nitrogen oxides and organic chlorine compounds from combustion waste gas
 A method for removing nitrogen oxides and organic chlorine compounds from a combustion waste gas, which comprises the steps of: adding ammonia (NH.sub.3) as a reducing agent to a combustion waste gas containing nitrogen oxides and organic chlorine compounds; causing the combustion waste gas added with ammonia to contact with, while keeping the temperature of the combustion waste gas within a prescribed range, with a catalyst comprising at least one selected from the group consisting of platinum (Pt), palladium (Pd), ruthenium (Ru), manganese (Mn), copper (Cu), chromium (Cr) and iron (Fe) and oxides thereof, supported on the surface of a carrier comprising at least one selected from the group consisting of titanium oxide (TiO.sub.2), silicon oxide (SiO.sub.2), aluminum oxide (Al.sub.2 O.sub.3) and zirconium oxide (ZrO.sub.2), thereby removing nitrogen oxides and organic chlorine compounds from the combustion waste gas. 
NGK Insulators NKK Corporation
B B B
B01D B01D B01J
inventional inventional inventional
Katsuhiro Haruhito Takashi Toshihiko Osamu Yasuo Takashi Yoshinori Masakatsu Miki
Tokura Tsuboi Yokoyama Iwasaki Ishikawa Suzuki Noto Imoto Hiraoka Yamagishi