Aromatic hydrogenation of distillates over SiO2-Al2O3-supported noble metal catalysts

被引：126

作者：

Fujikawa, T ^{[1
]}

Idei, K ^{[1
]}

Ebihara, T ^{[1
]}

Mizuguchi, H ^{[1
]}

Usui, K ^{[1
]}

机构：

[1] Cosmo Res Inst, Satte, Saitama 3400193, Japan

来源：

APPLIED CATALYSIS A-GENERAL | 2000年 / 192卷 / 02期

关键词：

hydrogenation; aromatics; palladium; platinum; bimetallic catalyst; sulfur tolerance; diesel fuel; TEM;

D O I：

10.1016/S0926-860X(99)00403-2

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：

In order to develop a new sulfur-tolerant noble metal catalyst with significantly increased catalytic activity for aromatic hydrogenation, the screening tests of the various non-zeolitic noble metal catalysts were carried out with hydrotreated light cycle oil (LCO)/straight-run light gas oil (SRLGO) feed containing 32-34 vol% aromatics and 172-474 ppm sulfur at a temperature of 573 K, hydrogen pressure of 4.9 MPa, and LHSV of 1.5 h(-1). The Pt-Pd/SiO(2)-Al(2)O(3) catalyst was the most highly active catalyst for aromatic hydrogenation under the conditions applied. The co-existence of Pt with Pd on SiO(2)-Al(2)O(3) remarkably enhanced the catalytic activity, which depended on the Pd/(Pt + Pd) weight ratio and reached a maximum of about 0.7 Pd/(Pt + Pd) weight ratio. Furthermore, the long-term stability test under industrial operating conditions demonstrated the excellent stability of the Pd-Pd/SiO(2)-Al(2)O(3) catalyst. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：253 / 261

页数：9

共 42 条

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