Kinetic behavior of hydrogenation of aromatics in diesel fuel over silica-alumina-supported bimetallic Pt-Pd catalyst

被引：50

作者：

Fujikawa, T ^{[1
]}

Idei, K ^{[1
]}

Ohki, K ^{[1
]}

Mizuguchi, H ^{[1
]}

Usui, K ^{[1
]}

机构：

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

来源：

APPLIED CATALYSIS A-GENERAL | 2001年 / 205卷 / 1-2期

关键词：

hydrogenation; hydrodesulfurization; Pt-Pd; SiO(2)-Al(2)O(3); kinetics; aromatics; diesel fuel; TEM;

D O I：

10.1016/S0926-860X(00)00552-4

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：

The kinetics and long-term stability test of the aromatic hydrogenation of diesel fuel were studied on SiO(2)-Al(2)O(3) supported bimetallic Pt-Pd catalyst. The tests on the influence of operating parameters and kinetics studies were carried out using Pt (0.5 wt.%)-Pd (1.0 wt.%)/SiO(2)-Al(2)O(3). which provided the highest catalytic activity in a previous paper [Applied Catalysis A: General, 192 (2000) 253] with hydrotreated light cycle oil (LCO)/straight-run light gas oil (SRLGO) feedstocks containing 30 vol.% aromatics/100 wppm sulfur and 34 vol.% aromatics/420 wppm sulfur under numerous conditions. The results on this catalyst obtained at different LHSV showed an excellent fit to first-order kinetics. The apparent activation energy was determined to be 92 kJ/mol. Long-term stability test demonstrated the excellent stability of this catalyst. The products during the long-term stability test are of good quality, with the upgraded color, the increased cetane index, and sufficiently decreased sulfur content. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：71 / 77

页数：7

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