论文信息 - Periodic Operation Effects on Automotive Noble Metal Catalysts — Reaction Analysis of Binary Gas Systems

Periodic Operation Effects on Automotive Noble Metal Catalysts — Reaction Analysis of Binary Gas Systems

Catalytic activities and periodic operation effects in various binary gas systems (CO-O2, NO-CO, NO-H2, C3H6-O2, and C3H8-O2) over Pt, Pd, and Rh/α-Al2O3 were compared. In all reaction systems, periodic operation effects were found to some extent. That is, the conversion improved in the cycling feed compared to the static one. The periodic operation effects occurred most noticeably for catalysts having lower catalytic activity as a result of the difference of adsorption capability between the two reactants.

Yoshiyasu Fujitani | Hirofumi Shinjoh | Hideaki Muraki

[1] H. Bonzel,et al. A low-pressure study of the reduction of NO by H2 on polycrystalline platinum , 1977 .

[2] James C. Schlatter,et al. Three-Way Catalyst Response to Transients , 1980 .

[3] Jeffrey A. Sell,et al. Dynamic behavior of automotive catalysts. 2. Carbon monoxide conversion under transient air fuel ratio conditions , 1983 .

[4] Jeffrey A. Sell,et al. Dynamic behavior of automotive catalysts. III: Transient enhancement of water-gas shift over rhodium , 1985 .

[5] Yoshiyasu Fujitani,et al. Behavior of automotive noble metal catalysts in cycled feedstreams , 1985 .

[6] K. Otto,et al. The reduction of nitric oxide by hydrogen over Ptγ-Al2O3 as a function of metal loading , 1980 .

[7] A Amirnazmi,et al. Decomposition of nitric oxide on platinum , 1975 .

[8] M. Chen. Morphology of Pt-Rh alloy crystallites on amorphous SiO2*1 , 1979 .

[9] Richard K. Herz,et al. Dynamic behavior of automotive catalysts. 1. Catalyst oxidation and reduction , 1981 .

[10] K. Otto,et al. Effects of the surface structure of Rhγ-Al2O3 on the hydrogenolysis of n-pentane, on the oxidation of n-butane, and on the reduction of nitric oxide , 1979 .

[11] M. Sieg,et al. Surface interactions in the Pt/-AlO system , 1979 .

[12] T. P. Kobylinski,et al. The catalytic chemistry of nitric oxide , 1974 .

[13] Kathleen C. Taylor,et al. Behavior of automobile exhaust catalysts with cycled feedstreams , 1983 .