摘要
研究了ZnHZSM－5上引入第二政性物对正戊烷芳构化反应性能及催化剂稳定性的影响，发现作为第二改性物，CU、Al、P物种对催化剂的反应性能和稳定性的促进作用不同，CU物种主要增加ZnHZSM－5的脱氧作用，而Al和P物种的作用则是调变其酸性质。结合NH3－TPD谱和结焦率的研究，探讨了改性物之间以及改性物与HZSM-5间的相互作用。
The effect of Cu, Al and P modifying species on the reaction performance and stability of doublymodified ZnHZSM-5 was studied- Cu species can enhance the dehydrogenation ability of the catalyst, andAl and P species can change its surface acidity. The interaction between modifiers or between modifiersand HZSM-5 catalyst was also investigated by NH,-TPD and coke formation rate determination.
出处
《工业催化》
CAS
1997年第3期27-31,共5页
Industrial Catalysis
关键词
HZSM-5
改性
正戊烷
芳构化
催化剂
zinc, copper. aluminium, phosphorus, modified HZSM-5, n-pentane aromatization
