Characterization of commercial hydrocracking catalysts by temperature-programmed methods: TPR/TPS/TPD

被引：0

作者：

Ahmed, S ^{[1
]}

Ali, SA ^{[1
]}

Alam, K ^{[1
]}

Hamid, SH ^{[1
]}

Iwamatsu, E ^{[1
]}

Hayashi, E ^{[1
]}

Sanada, Y ^{[1
]}

Yoneda, T ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Res Inst, Ctr Refining & Petrochem, Dhahran, Saudi Arabia

来源：

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING | 1999年 / 24卷 / 1C期

关键词：

hydroprocessing; hydrocracking; TPR; TPS; TPD; HDS; model compounds;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Temperature-programmed reduction (TPR), temperature-programmed sulfiding (TPS), and temperature-programmed desorption (TPD) of ammonia were applied to characterize six commercial hydroprocessing catalysts. In addition, their chemical composition, surface area, pore volume, and major crystalline phase were also determined. Catalysts that are reduced at lower temperature performed better in terms of hydrodesulfurization of benzothiophene. Hydrocracking of cumene was studied to evaluate the cracking ability of the catalysts. The cracking activity of the catalysts was very well correlated with the acidity. TPS patterns of the Mo containing catalysts were similar with each other. However, W containing catalyst showed a different sulfiding behavior. This approach can be utilized for the fast screening of commercial hydroprocessing catalysts and also for finding the best promising lab prepared catalysts.

引用

页码：71 / 82

页数：12

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