Plasma-driven catalyst processing packed with photocatalyst for gas-phase benzene decomposition

Decomposition of gas-phase benzene was investigated using plasma-driven catalyst (PDC) reactors packed with TiO2, Pt/TiO2 or Ag/TiO2. A conventional BaTiO3 packed-bed plasma reactor was also used for comparison purpose. The PDC reactors were found to be more effective in both aspects of energy efficiency and the reduction of undesirable reaction products compared to those with the conventional BaTiO3 packed-bed plasma reactor. Catalytic activity on the benzene decomposition was in order of Ag/TiO2 > TiO2 > Pt/TiO2 among the test materials. Silver (Ag) catalyst was also found to be effective in enhancing the CO, selectivity. (C) 2003 Elsevier Science B.V. All rights reserved.