TY - JOUR
T1 - Influence of Diffusion and Acid Properties on Methane and Propane Selectivity in Methanol-to-Olefins Reaction
AU - Li, Junjie
AU - Liu, Min
AU - Li, Shanshan
AU - Guo, Xinwen
AU - Song, Chunshan
N1 - Funding Information:
The authors acknowledge the financial support from the National Key Research and Development Program of China (2018YFB0604801). We thank Dr. Guanghui Zhang for his kind help in revising the manuscript.
PY - 2019/2/6
Y1 - 2019/2/6
N2 - ZSM-5 zeolites with different particle sizes and mesoporous structures were evaluated in a methanol-to-olefins (MTO) reaction. The results show that the efficient diffusion leads to a low methane selectivity in the initial stage of reaction and a slight increase in methane selectivity throughout the reaction. ZSM-5 zeolites with different acid amounts were also evaluated, and the results indicate that ZSM-5 with a few acid sites exhibits a low initial methane selectivity and a slight increase with prolonged reaction time. In addition, a low initial propane selectivity was observed. [Fe]-[Al]-ZSM-5 zeolites with different Fe/Al ratios were also evaluated in MTO reaction, and a low propane selectivity was observed over ZSM-5 with a weak acid strength (high Fe/Al ratio). Those results are very useful for the understanding of methane and propane formation mechanism. Furthermore, it contributes to a further study of methanol conversion mechanism and deactivation mechanism.
AB - ZSM-5 zeolites with different particle sizes and mesoporous structures were evaluated in a methanol-to-olefins (MTO) reaction. The results show that the efficient diffusion leads to a low methane selectivity in the initial stage of reaction and a slight increase in methane selectivity throughout the reaction. ZSM-5 zeolites with different acid amounts were also evaluated, and the results indicate that ZSM-5 with a few acid sites exhibits a low initial methane selectivity and a slight increase with prolonged reaction time. In addition, a low initial propane selectivity was observed. [Fe]-[Al]-ZSM-5 zeolites with different Fe/Al ratios were also evaluated in MTO reaction, and a low propane selectivity was observed over ZSM-5 with a weak acid strength (high Fe/Al ratio). Those results are very useful for the understanding of methane and propane formation mechanism. Furthermore, it contributes to a further study of methanol conversion mechanism and deactivation mechanism.
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U2 - 10.1021/acs.iecr.8b03969
DO - 10.1021/acs.iecr.8b03969
M3 - Article
AN - SCOPUS:85060791200
VL - 58
SP - 1896
EP - 1905
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
SN - 0888-5885
IS - 5
ER -