Kumamoto Conv. of JPI (50th Petroleum-Petrochemical Symposium of JPI)

Presentation information

Environmental chemistry

[2D05-08] Environmental chemistry 2

Fri. Nov 13, 2020 10:30 AM - 11:30 AM Room D (3F/Conf. Room D1-2)

Chair:Katsutoshi Nagaoka(Nagoya University)

10:45 AM - 11:00 AM

[2D06] W-Substituted Vanadium Oxide Catalyst for Low-Temperature DeNOx in the Presence of Water Vapor

○Yusuke Inomata1, Eiji Kiyonaga2, Keiichiro Morita2, Kazuhiro Yoshida2, Hiroe Kubota3, Takashi Toyao3, Ken-ichi Shimizu3, Masatake Haruta1, Toru Murayama1,4 (1. Research Center for Gold Chemistry, 2. The Chugoku Electric Power Company, Incorporated, 3. Hokkaido University, Institute for Catalysis, 4. Au-SDARC, Yantai University)

The conventional NH3-SCR (selective catalytic reduction) catalyst needs a high reaction temperature (300oC<). Therefore, the catalyst is usually placed just after the boiler system. Consequently, the catalyst is deactivated by ash and sulfate generated from the reaction of ammonia and SO2. Thus, the development of a practical low-temperature NH3-SCR catalyst is an urgent task. In this work, W-substituted vanadium oxide catalysts were synthesized for a low temperature (100-150oC) deNOx process. The reaction mechanism was also analyzed both under dry and wet atmosphere at a low temperature (150oC) using in situ and operando spectroscopies.