Catalytic synthesis of 2-methyl pyrazine over Zn-modified zeolites

Anand, R. ; Hegde, S. G. ; Rao, B. S. ; Gopinath, Chinnakonda S. (2002) Catalytic synthesis of 2-methyl pyrazine over Zn-modified zeolites Catalysis Letters, 84 (3-4). pp. 265-272. ISSN 1011-372X

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Cyclization of ethylene diamine and propylene glycol to 2-methyl pyrazine (2-MP) was investigated on Zn-modified zeolites, namely ZSM-5, Beta, and ferrierite catalysts, as a function of temperature, space velocity, and feed ratio. Zn-impregnated ZSM-5 was found to be the promising catalyst with 64% selectivity for 2-MP at 450 °C. ZnO-like species on Zn-impregnated ZSM-5, identified from XPS, enhance the selectivity to 2-MP. The difference in acidity, the nature of the Zn species, and its distribution on Zn-modified ZSM-5 catalysts obtained from FT-IR and XPS are in good agreement and they are correlated with catalytic activity.

Item Type:Article
Source:Copyright of this article belongs to Springer.
Keywords:Methyl Pyrazine; Zeolite; Zinc Oxide; ZSM-5; Alkyl Pyrazines; XPS; FT-IR
ID Code:61813
Deposited On:15 Sep 2011 12:11
Last Modified:15 Sep 2011 12:11

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