分级Cu/Zr-MTW分子筛酸碱特性对乙醇-水混合物制1,3-丁二烯催化性能的影响

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2022-01-28 DOI:10.1007/s11237-021-09703-4

O. V. Larina, M. M. Kurmach, P. I. Kyriienko, L. M. Alekseenko, O. V. Shvets, S. O. Soloviev

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引用次数: 0

摘要

矿化剂(HF, NH4F)的性质和合成条件下的Si/F比影响了铜(2 wt.%)修饰的含锆分级沸石(Cu/Zr- mtw)表面含Zr和含Cu酸位的形成。结果表明，在50和80 vol.%的乙醇转化率下，Cu/Zr-MTW (NH4F, Si/F = 4)催化剂的存在下，1,3-丁二烯的收率最高，根据TPD-NH3，该催化剂具有较高的表面总酸度。

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

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.

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.