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

被引：0

作者：

V. Kröger

T. Kanerva

U. Lassi

K. Rahkamaa-Tolonen

T. Lepistö

R. L. Keiski

机构：

[1] University of Oulu,Department of Process and Environmental Engineering

[2] Tampere University of Technology,Institute of Materials Science

[3] Central Ostrobothnia University of Applied Sciences,Department of Technology

[4] Ecocat Oy,undefined

来源：

Topics in Catalysis | 2007年 / 42-43卷

关键词：

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

D O I：

暂无

中图分类号：

学科分类号：

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：3

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