Selective Catalytic Reduction of NO in Diesel Exhaust over Anodic Alumina Catalyst

DOI Web Site 4 Citations 39 References
  • GUO Yu
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology
  • SAKURAI Makoto
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology
  • KAMEYAMA Hideo
    Department of Chemical Engineering, Tokyo University of Agriculture and Technology
  • MATSUYAMA Akira
    Lead Industry Company Ltd.
  • KUDOH Yasushi
    Lead Industry Company Ltd.

Bibliographic Information

Other Title
  • 陽極酸化アルミナ触媒を用いたディーゼル排ガスにおけるNOの選択還元

Search this article

Abstract

A series of Cu-Mn-Ce/Al2O3 anodic alumina catalysts synthesized using the multi-impregnation method were employed to investigate the selective reduction of NO with C3H6 in the presence of excess O2. The presence of Cu additive greatly promoted the low-temperature de-NOx activity. A moderate loading of copper gave the most promising NOx conversion. In contrast, no promotional effect on low-temperature de-NOx activity was found when Mn was added to the alumina support. Although the Mn-supported catalyst exhibited a higher activity for the oxidation of NO to NO2, the addition of Mn to the Cu-Ce/Al2O3 catalyst had no positive effect on NOx reduction, due to the wasteful consumption of propene. The de-NOx activity of the Cu-Ce/Al2O3 catalyst was maintained at a relatively high level, even in the presence of excess SO2 (500 ppm) and H2O (10 vol%). Furthermore, the presence of SO2 was observed to greatly promote NOx reduction at 723 K.<br>

Journal

Citations (4)*help

See more

References(39)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top