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The Effect of SO2 and H2O on the NO Reduction of V2O5-WO3/TiO2/SiC Catalytic Filter
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  • Journal title : Korean Chemical Engineering Research
  • Volume 52, Issue 5,  2014, pp.688-693
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2014.52.5.688
 Title & Authors
The Effect of SO2 and H2O on the NO Reduction of V2O5-WO3/TiO2/SiC Catalytic Filter
Ha, Ji-Won; Choi, Joo-Hong;
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For investigating NO reduction activity of an catalytic filter, the catalytic performance was measured under the presence of and , respectively or simultaneously in the simulation gas composed of NO, , and air. The catalytic filter was prepared by coating catalyst on the pore surface of SiC filter element of which the superior performance for the particulate removal was well known. At the temperature below , the catalytic activities were enormously decreased under the presence of and , respectively or simultaneously, compared with those under the cases of the absence of and . However, the presence of promoted the performance of the catalytic filter above with showing the NO conversion better than 99.8% for the NO inlet concentration of 500 ppm and at the face velocity of 2 cm/s. In particular, the presence of water showed high NO conversion higher than 99% up to high temperature of . This effect of water was explained by the reason that it retarded the ammonia oxidation which is the main step into the formation of . The initial NO reduction activity of the catalytic filter maintained for the duration of 100 hours in the presence of and . Therefore, it was concluded that the catalytic filter was promisingly useful for the industrial NOx reduction catalyst in order to treat the particulate and NO simultaneously.
Catalytic Filter;NO Reduction; Effect; Effect;
 Cited by
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