Influence of Modification of Zn-Mg(Zr)Si Oxide Systems by Sodium and Potassium on their Catalytic Properties in the Process of Obtaining 1,3-Butadiene from Ethanol

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2022-03-10 DOI:10.1007/s11237-022-09714-9

O. V. Larina, P. I. Kyriienko, O. V. Morozov, T. I. Obushenko, N. M. Tolstopalova, S. O. Soloviev

引用次数: 2

Abstract

The effect of alkali metal ions (Na⁺ or K⁺) on the acid–base and catalytic properties of Zn-Mg(Zr)Si oxide systems in the process of obtaining 1,3-butadiene from ethanol was studied. It was found that the modification of Zn-MgSi oxide systems promotes an increase in the 1,3-butadiene selectivity (at temperatures ≥670 K) by reducing the number of formation sites of by-products. In the composition of Zn-ZrSi oxide systems, alkali metal cation additives lead to a decrease in the ethene and diethyl ether selectivity due to a decrease in the content of strong acid sites that are active in the ethanol dehydration reaction.

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钠和钾改性Zn-Mg(Zr)Si氧化物体系对乙醇制1,3-丁二烯催化性能的影响

研究了碱金属离子(Na+或K+)对Zn-Mg(Zr)Si氧化物体系在乙醇制得1,3-丁二烯过程中的酸碱及催化性能的影响。结果表明，Zn-MgSi氧化物体系的改性通过减少副产物的生成位点，提高了(≥670 K) 1,3-丁二烯的选择性。在Zn-ZrSi氧化物体系的组成中，碱金属阳离子添加剂由于减少了乙醇脱水反应中活性的强酸位点的含量，导致乙烯和乙醚选择性的降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.

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