Effect of reaction pressure and carrier gas on toluene disproportionation over molybdenum-ZSM-5 catalyst

被引：16

作者：

Al-Khattaf, S. ^{[1
]}

Ali, M. A. ^{[1
]}

Al-Amer, A. ^{[2
]}

机构：

[1] King Fahd Univ Petr & Minerals, Res Inst, Dhahran 31261, Saudi Arabia

[2] King Fahd Univ Petr & Minerals, Dept Chem Engn, Dhahran 31261, Saudi Arabia

来源：

ENERGY & FUELS | 2008年 / 22卷 / 01期

关键词：

D O I：

10.1021/ef700582b

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This study was aimed at evaluating the effects of reaction pressure and temperature on toluene disproportionation using a ZSM-5-based catalyst impregnated with molybdenum. The results of the study showed that both toluene conversion and xylene selectivity were strongly dependent on temperature, pressure, and the kind of carrier gas used. Toluene conversion compared at the same temperature and pressure was found to be higher when nitrogen instead of hydrogen was used as the carrier gas. For both carrier gases, it was found that toluene conversion increased,with both pressure and temperature. Furthermore, it was observed that catalyst deactivation was more rapid and more severe with nitrogen as the carrier gas than with hydrogen.

引用

页码：243 / 249

页数：7

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