CATALYST DECOMPOSITION DURING TEMPERATURE-PROGRAMMED DESORPTION OF BASES FROM PROMOTED SULFATED ZIRCONIAS

被引：40

作者：

SIKABWE, EC

COELHO, MA

RESASCO, DE

WHITE, RL

机构：

[1] UNIV OKLAHOMA,DEPT CHEM & BIOCHEM,NORMAN,OK 73019

[2] UNIV OKLAHOMA,SCH CHEM ENGN,NORMAN,OK 73019

来源：

CATALYSIS LETTERS | 1995年 / 34卷 / 1-2期

关键词：

SULFATED ZIRCONIA; TEMPERATURE PROGRAMMED DESORPTION; SOLID ACIDS; CATALYST DECOMPOSITION;

D O I：

10.1007/BF00808318

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：

Results from temperature programmed desorption of ammonia, pyridine, and benzene from sulfated zirconia catalysts promoted with Fe, Mn, and Ni are compared. Without adsorbates, catalysts are thermally stable below 900 K. With adsorbates, catalysts decompose partially or completely between 700 and 900 K. It is shown that previously reported conclusions regarding acid strength distributions for promoted sulfated zirconia catalysts that were based on the results of ammonia and benzene thermal desorption studies are likely incorrect because the decomposition of adsorbates and the catalyst were not considered.

引用

页码：23 / 30

页数：8

共 18 条

[1] ACID SITES IN SULFATED AND METAL-PROMOTED ZIRCONIUM DIOXIDE CATALYSTS [J].