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Deactivation of V2O5/TiO2 catalytic system on the sulfuric oxides
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 Title & Authors
Deactivation of V2O5/TiO2 catalytic system on the sulfuric oxides
Jang, Hyun Tae; Cha, Wang Seog;
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Deactivation characteristics of catalysts were studied for selective catalytic reduction(SCR) of NOx with ammonia in the presence of . Performance of catalyst was investigated for activity while changing temperature, concentration. The activity of catalyst was decreased with the increase of concentration and reaction time. Also, degree of activity drop was largely decreased with the increase of reaction temperature in the range of . Physicochemical properties of deactivated catalysts were characterized by BET, XRD, SEM, TPD analysis. According to the analysis results, deactivation phenomena occur due to the relatively high formation of ammonium sulfate salts, which created by unreacted ammonia and water in the presence of . It was revealed that ammonium sulfate cause the pore plogging of support and deposition of active matter.
 Cited by
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