Influences of Reaction Temperature and Carrier Gas Flow‐Rate on n‐Heptane Cracking over ZSM‐5 Catalyst Without and With Activation of V2O5/Al2O3. (6th September 2017)

• Record Type: Journal Article
• Authors: Hu, Xiaoyan; Yan, Xinlong; Feng, Rui; Xue, Jianliang
• Is Part Of: Bulletin of the Korean Chemical Society. Volume 38:Number 10(2017)
• Page Start: 1129
• Page End: 1133
• Publication Date: 2017-09-06
• Subjects: Catalytic cracking -- V2O5/Al2O3 -- Activation -- Reaction temperature -- N2 flow‐rate; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/bkcs.11229
• Languages: English
• ISSNs: 0253-2964

Abstract

Abstract : The activation role of V2 O5 /Al2 O3 during the cracking of heptane over ZSM‐5 catalysts has already been confirmed in our previous study. In order to get more details about the alternative reaction pathway contributed by the activation of V2 O5 /Al2 O3, a comparative study of n ‐heptane cracking over ZSM‐5 equilibrium catalyst without and with V2 O5 /Al2 O3 introduction was performed at different temperatures and contact time. The results indicated that elevated reaction temperature weakened the role of V2 O5 /Al2 O3 during the reaction process. While the impacts of contact time were not as strong as that of temperature, and the change of relative contribution of different reaction pathways, including thermal reaction, carbonium/carbenium ion cracking, and reaction of the intermediate species because of V2 O5 /Al2 O3 activation, was concluded to be small at varied N2 flow rates. Abstract :