Influence of Acid–Base Characteristics of Hierarchical Cu/Zr-MTW Zeolites on their Catalytic Properties in 1,3-Butadiene Production from Ethanol–Water Mixtures.

Autor:	Larina, O. V., Kurmach, M. M., Kyriienko, P. I., Alekseenko, L. M., Shvets, O. V., Soloviev, S. O.
Předmět:	ZEOLITES MIXTURES ZEOLITE catalysts ACIDITY CATALYSTS COPPER ETHANOL
Zdroj:	Theoretical & Experimental Chemistry; Nov2021, Vol. 57 Issue 5, p343-350, 8p
Abstrakt:	The nature of mineralizing agent (HF, NH4F) and the Si/F ratio in the synthesis conditions is found to affect the formation of Zr- and Cu-containing acid sites on the surface of zirconium-containing hierarchical zeolites (Cu/Zr-MTW) modified by copper (2 wt.%). It is shown that in the conversion of 50 and 80 vol.% ethanol the highest yield of 1,3-butadiene is achieved in the presence of Cu/Zr-MTW (NH4F, Si/F = 4) catalyst, which is characterized by higher total surface acidity according to TPD-NH3. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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