Effects of lanthanum on the properties of bifunctional Ni/HY catalyst

被引：1

作者：

Li, D ^{[1
]}

Li, F ^{[1
]}

Ren, J ^{[1
]}

Sun, YH ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2002年 / 76卷 / 02期

关键词：

bifunctional catalysts; n-octane hydroconversion; lanthanum; metal/acid ratio;

D O I：

10.1023/A:1016552415339

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of lanthanum modified-Ni/HY bifunctional catalysts for n-octane hydroconversion were prepared by ion-exchange method, and the influence of lanthanum contents on the activity and the selectivity was investigated. Py-FTIR and CO-DRIFTS results indicated that the addition of lanthanum could adjust the acidity and the metal state over Ni/HY catalyst, and consequently change the ratio of metal to acid functions. It was found that the best catalytic performance at the lanthanum exchange of ca. 8 wt.% was due to the suitable metal/acid ratio.

引用

页码：353 / 360

页数：8