Selective Catalytic Reduction of Nitric Oxide by Propene over a Cu-Mn-CeOx/Al2O3/Al Alumite Catalyst

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yu Guo²  Akira Matsuyama¹  Makoto Sakurai²  Hideo Kameyama²  Yasushi Kudoh¹ 

[1] Lead Industry Company, Ltd.;Department of Chemical Engineering, Tokyo University of Agriculture and Technology

关键词: Selective Catalytic Reduction;    Alumite Catalyst;    NOx Removal;    Oxygen;    Propene;   

DOI  :  10.1252/jcej.37.406

来源: Maruzen Company Ltd

【 摘 要 】

References(17)Cited-By(6)The catalytic activity of Cu-Mn-CeOx/Al2O3/Al alumite catalyst in the selective catalytic reduction of nitric oxide by supplementation with propene (SCR-C3H6) was investigated at temperatures ranging from 473 to 773 K. Oxygen was found to have different effects on NOx removal at low and high temperatures. Introducing a small amount of oxygen could significantly promote the reduction of NOx at low temperatures. However, at high temperatures, the increase in oxygen substantially depressed NOx conversion. When oxygen exceeded the critical concentration point (S > 1.0, i.e. a net oxidizing condition), there was an optimal reaction temperature for maximal NOx conversion, which occurred at the temperature required for complete oxidation of propene. An increase in propene was always favorable in enhancing the reduction of NOx over the entire temperature range.

【 授权许可】

Unknown