[Catalytic removal of NO on modified precious catalyst].
The streams of waste gases containing NO from industries would cause seriously pollution on the environment if they are directly discharged without further purification. The property of removal of NO from the waste gas at lower temperature performed on platinum catalyst by reduction with NH3 was investigated. Experimental study showed that the precious catalyst, platinum, had good activity at low temperature and high selectivity of catalytic removal of NO from the waste gas by ammonia. However, its performance was affected by the sulfur compound, SO2, which was present in the waste gas. Results indicated that the performance of platinum supported catalyst could be improved with addition of lanthanides on it. The suitable compositions of the modified catalyst were 1:3.78:3.56 molar ratio of Pt:La:Ce in the experiment.
Zhu
Jing-Li
JL
Key Laboratory of Science and Technology of Controllable Chemical Reactions, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China. yczjl@liaohua.cn
Zhang
Jin-Chang
JC
Ma
Run-Yu
RY
Wang
Yan-Hui
YH
D000393:Air Pollutants / Q000737:chemistry*; D002384:Catalysis; D002586:Cesium / Q000737:chemistry; D007811:Lanthanum / Q000737:chemistry; D009569:Nitric Oxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry*; D018505:Waste Management / Q000379:methods
D000393:Air Pollutants; D002586:Cesium; D009569:Nitric Oxide; D010984:Platinum; D007811:Lanthanum