SULFUR ADSORPTION, DESORPTION AND EXCHANGE ON PLATINUM ALUMINA, RHENIUM ALUMINA AND PLATINUM RHENIUM ALUMINA CATALYSTS

被引：15

作者：

PONITZSCH, L

WILDE, M

TETENYI, P

DOBROVOLSZKY, M

PAAL, Z

机构：

[1] HUNGARIAN ACAD SCI,INST ISOTOPES,POB 77,H-1525 BUDAPEST,HUNGARY

[2] CENT INST ORGAN CHEM,DEPT BASIC ORGAN MAT,O-7050 LEIPZIG,GERMANY

来源：

APPLIED CATALYSIS A-GENERAL | 1992年 / 86卷 / 02期

基金：

匈牙利科学研究基金会;

关键词：

PLATINUM-RHENIUM ALUMINA; PLATINUM ALUMINA; RHENIUM ALUMINA; NORMAL-HEXANE AROMATIZATION; SULFUR DESORPTION; SULFUR ISOTOPIC EXCHANGE;

D O I：

10.1016/0926-860X(92)85142-X

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：

Sulphidation of a partially coked Pt-Re/Al2O3 catalyst results in a catalytic behaviour similar to that of a presulphided catalyst. Sulphur is able to displace coke from the metal surface. The amount of irreversibly chemisorbed sulphur - as determined by using (H2S)-S-35 for catalyst sulphidation - increases in the order: Pt/Al2O3 < Pt-Re/Al2O3 < Re/Al2O3. The reverse order was found for the exchange of S-35 with (H2S)-S-32. In Pt-Re-S/Al2O3, the dilution of platinum ensembles occurs to a greater extent and in a more rigid structure than in Pt-S/Al2O3.

引用

页码：115 / 125

页数：11

共 33 条

[1] SULFURIZATION OF PT/AL2O3-CL CATALYSTS .3. KINETICS OF H2S ADSORPTION ON ALUMINA, CHLORIDED ALUMINA AND PT/AL2O3-CL [J].