Hierarchical Zr-MTW Zeolites Doped with Copper as Catalysts of Ethanol Conversion into 1,3-Butadiene

被引：29

作者：

Kurmach, Mykhailo M. ^{[1
]}

Larina, Olga, V ^{[1
]}

Kyriienko, Pavlo, I ^{[1
]}

Yaremov, Pavlo S. ^{[1
]}

Tracheysky, Volodymyr V. ^{[2
]}

Shvets, Oleksiy, V ^{[1
]}

Soloviev, Sergiy O. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, LV Pisarzhevsky Inst Phys Chem, 31 Prosp Nauky, UA-03028 Kiev, Ukraine

[2] Natl Acad Sci Ukraine, Tech Ctr, 13 Vul Pokrovska, UA-04070 Kiev, Ukraine

来源：

CHEMISTRYSELECT | 2018年 / 3卷 / 29期

关键词：

ethanol; 1,3-butadiene; Zr-MTW zeolite; copper; fluorine medium; Lewis acidic site; SELECTIVE SYNTHESIS; ZRBEA ZEOLITES; BUTADIENE; ACETALDEHYDE; SUSTAINABILITY; REDUCTION; ALCOHOL; SILICA; SITES; AG;

D O I：

10.1002/slct.201801971

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The hierarchical Zr-MTW zeolites are prepared using NH4F and HF as mineralizing agents and structure-directed agent like Gemini-type surfactant and studied by X-ray diffraction (XRD), Si-29 magic angle spinning nuclear magnetic resonance (Si-29 MASNMR), Fourier transform infrared (FTIR) spectroscopy with pyridine, 2,6-di-tert-butylpyridine and CD3CN as probe molecules. Structural characteristics and acid-base properties of the zeolites depend on concentration of fluorine precursor in the reaction medium (a ratio of Si/F). The hierarchical Zr-MTW zeolites (included doped with copper) have been tested in ethanol conversion into 1,3-butadiene by Lebedev method. The symbatical dependence of 1,3-butadiene productivity with the concentration of Lewis acidic sites determined by FTIR spectroscopy of adsorbed CD3CN is observed. 1.3-Butadiene selectivity of 68% with ethanol conversion of 81% are achieved in the presence of Cu/Zr-MTW catalyst.

引用

页码：8539 / 8546

页数：8

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