Phosphorus poisoning of ZSM-5 and Pt/ZSM-5 zeolite catalysts in diesel exhaust gas conditions

被引：7

作者：

Kroger, V.

Kanerva, T.

Lassi, U.

Rahkamaa-Tolonen, K.

Lepisto, T.

Keiski, R. L.

机构：

[1] Univ Oulu, Dept Proc & Environm Engn, FIN-90014 Oulu, Finland

[2] Tampere Univ Technol, Inst Mat Sci, FIN-33101 Tampere, Finland

[3] Cent Ostrobothnia Univ Appl Sci, Dept Technol, FIN-67100 Kokkola, Finland

[4] Ecocat Oy, FIN-90650 Oulu, Finland

来源：

TOPICS IN CATALYSIS | 2007年 / 42-43卷 / 1-4期

关键词：

ZSM-5; zeolite; platinum; diesel; phosphorus; poisoning;

D O I：

10.1007/s11244-007-0220-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Powdered ZSM-5 and Pt/ ZSM-5 catalysts were studied as fresh and after two treatments: hydrothermal ageing and phosphorus poisoning in hydrothermal conditions. The results showed that the deactivating effect of phosphorus was stronger than the effect of the hydrothermal treatment alone. Phosphorus had accumulated in the samples during the ageing. The decrease in specific surface area and increase in Pt particle size indicated the possible reasons for deactivation.

引用

页码：433 / 436

页数：4

共 6 条

[1] Monolithic diesel oxidation catalysts [J].