Hydrogenation active sites of unsupported molybdenum sulfide catalysts for hydroprocessing heavy oils

被引：72

作者：

Iwata, Y

Araki, Y

Honna, K

Miki, Y

Sato, K

Shimada, H

机构：

[1] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan

[2] Petrochem Energy Ctr, Adv Catalst Res Lab, Tsukuba Branch, Tsukuba, Ibaraki 3058565, Japan

来源：

CATALYSIS TODAY | 2001年 / 65卷 / 2-4期

关键词：

dispersed catalyst; ammonium tetrathiomolybdate; NO chemisorption; x-ray diffraction; molybdenum dithiocarbamate;

D O I：

10.1016/S0920-5861(00)00554-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The purpose of the present study was to elucidate the nature of the hydrogenation active sites on unsupported molybdenum sulfide catalysts, aimed at the improvement of the catalysts for the slurry processes. The number of hydrogenation active sites was found to relate to the "inflection" on the basal plane of the catalyst particles. The comparison of the catalytic activity to that of an oil-soluble catalyst in the hydroprocessing of heavy oils suggests that the performance of the oil-soluble catalyst was near the maximum, unless another component such as Ni or Co was incorporated. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：335 / 341

页数：7

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