화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.31, No.5, 794-800, May, 2014
DOI10.1007/s11814-013-0270-x  Export Citation
Study of SO2 oxidation over V2O5/activated carbon catalyst using in situ diffuse reflectance infrared Fourier transformation spectroscopy
Wen Jing1, 2, Qianqian Guo1, 2, Yaqin Hou1, 3, Xiaojin Han1, 3, and Zhanggen Huang1, 3, †
  • 1State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
  • 2University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • 3, China
E-mail:
The SO2 oxidation over V2O5/AC catalyst was studied using an in situ diffuse reflectance infrared Fourier transformation spectroscopy technique at 120 oC. Results reveal that the surface oxygen groups could neither act as active sites for SO2 oxidation nor supply the oxygen needed for VV ↔VIV redox cycle. The vanadia species and gas phase oxygen are essential for SO2 oxidation. During SO2 oxidation over V2O5/AC, the surface hydroxyl groups involve in the formation of sulfate species. The role of water vapor in flue gas might be to supplement the hydroxyl groups consumed so that the SO2 oxidation could continue.
Keywords:V2O5/AC;In Situ DRIFTS;SO2 Oxidation;Oxygen Groups;Water Vapor
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