NO reduction and CO oxidation over Cu/Ce/Mg/Al mixed oxide catalyst in FCC operation


Autoria(s): Wen, B; He, MY; Schrum, E; Li, C
Data(s)

11/03/2002

Resumo

Simultaneous NO reduction and CO oxidation in the presence of O-2,H2O and SO2 over Cu/Mg/AUO (Cu-cat), Ce/Mg/Al/O (Ce-cat) and Cu/Ce/Mg/Al/O (CuCe-cat) were studied. At low temperatures (<340 degreesC), the presence of O-2 or H2O enhanced the activity of CuCe-cat for NO and CO conversions, but significantly suppressed the activity of Cu-cat and Ce-cat, At high temperature (720 degreesC), the presence of O-2 or H2O had no adverse effect on the NO and CO conversions over these catalysts. The addition of SO2 to NO + CO + O-2 + H2O system had no effect on the, reaction of CO + O-2 over Cu-cat, but deactivated this catalyst for NO + CO and CO + H2O reactions; over Ce-cat, all of these reactions of NO + CO, CO + O-2 and CO + H2O were suppressed significantly; over CuCe-cat, NO + CO and CO + O-2 reactions were not affected while the reaction of CO + H2O was slightly inhibited. (C) 2002 Elsevier Science B.V. All rights reserved.

Identificador

http://159.226.238.44/handle/321008/84903

http://www.irgrid.ac.cn/handle/1471x/180103

Idioma(s)

英语

Fonte

温斌;何鸣元;E. Schrum;李灿.NO reduction and CO oxidation over Cu/Ce/Mg/Al mixed oxide catalyst in FCC operation,Journal of Molecular Catalysis A,2002,180(1—2):187-192

Palavras-Chave #NO reduction #CO oxidation #FCC #H2O and SO2 poisoning #NO and CO co-adsorption
Tipo

期刊论文