NEW EVIDENCE FOR THE SUPPORT EFFECTS IN TOLUENE STEAM DEALKYLATION ON RHODIUM ALUMINOCHROMIUM CATALYSTS

被引：8

作者：

DUPREZ, D ^{[1
]}

MILOUDI, A ^{[1
]}

TOURNAYAN, L ^{[1
]}

机构：

[1] UNIV LYON 1, CNRS, INST CATALYSE & CHIM IND, F-69622 VILLEURBANNE, FRANCE

来源：

APPLIED CATALYSIS | 1985年 / 14卷 / 1-3期

关键词：

BENZENE; -; Hydrogenation; HYDROGEN; TOLUENE; Processing;

D O I：

10.1016/S0166-9834(00)84364-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：

Two series of 0. 6% Rh-Cr//2O//3-Al//2O//3, with x equals Cr/(Cr plus Al)% ranging from 0 to 100%, are characterized by hydrogen chemisorption (H//C), oxygen titration (O//T) and hydrogen titration (H//T); they are investigated in toluene steam dealkylation and, in some cases, in benzene hydrogenation. Supports are prepared by decomposition of citric complexes and rhodium is introduced by wet impregnation. No strong metal-support interaction is found in the catalysts. H//C values seem well-correlated with the metal dispersion; results of benzene hydrogenation support this interpretation; O//T and H//T depend strongly on the chromium content and provide indications as to the surface state of the support.

引用

页码：333 / 342

页数：10

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