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
收藏
页码：353 / 360
页数：8
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