Propene-SCR of NO over Electrically Heating Anodic Alumina Supported Silver Catalyst

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Tomohisa Kida¹  Wen Zhao¹  Yu Guo¹  Jian Chen¹  Lu Zhou¹  Makoto Sakurai¹  Huabo Li¹  Hideo Kameyama¹ 

[1] Department of Chemical Engineering, Tokyo University of Agriculture and Technology

关键词: Selective Catalytic Reduction;    Anodic Alumina Support;    Silver;    Hydrogen;    Electrically Heating;   

DOI  :  10.1252/jcej.10we113

来源: Maruzen Company Ltd

【 摘 要 】

References(25)An anodic alumina supported silver catalyst (1.7 Ag/Al2O3) was synthesized to investigate the selective catalytic reduction (SCR) of NO under an electrically heating pattern. It was found that less than 1 min was required to heat the catalyst from room temperature to 450°C. Comparing with a common furnace heating pattern, similar de-NOx activity was achieved. According to the electrically heating tests, the NOx conversion of 1.7 Ag/Al2O3 remained above 80% for 15 h at 450°C (F/W = 65000 mL/(g · h)), which proved that it was commendable to apply this type of catalyst to C3H6-SCR of NO. Additionally, the promotional effect of hydrogen additive is also discussed under the electrically heating pattern. In the presence of 2000 ppm of hydrogen, the 1.7 Ag/Al2O3 reached 80% NOx conversion within a few seconds at 300°C, while the activity was very low at 300°C without hydrogen; such a high conversion was maintained for 15 h.

【 授权许可】

Unknown