Kinetic models for the coke combustion on deactivated ZSM-5/MOR derived from n-heptane cracking

Ning Zhu, Yuan Yuan Liu, Yang Wang, Feng Qiu Chen, Xiao Li Zhan

科研成果: 期刊稿件文章同行评审

18 引用 (Scopus)

摘要

The combustion behavior of coked H-ZSM-5/H-mordenite (ZSM-5/MOR) derived from catalytic cracking of n-heptane with and without water steam has been studied by thermogravimetric analysis (TGA). Catalytic cracking under vapor atmosphere with a water-oil ratio of 2 at 650 °C created only one type of coke deposit on the catalyst. On the other hand, two types of coke can be found on the coked catalyst deactivated by catalytic cracking without water steam. These results indicated different combustion kinetic models of different types of coke. A one-coke combustion model for the regeneration of coked catalyst obtained under water steam and a two-coke combustion model for the regeneration of coked catalyst derived without water steam were conducted by using TGA, respectively. Finally, the relationship between the C/H ratios and activation energies in the combustion kinetic models were investigated by ultimate analysis.

源语言英语
页(从-至)89-93
页数5
期刊Industrial and Engineering Chemistry Research
49
1
DOI
出版状态已出版 - 6 1月 2010
已对外发布

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