Pyrolytic Decomposition of Polyethylene in the Presence of Aluminosilicate Materials Containing Nickel Oxide

IF 1.3 4区化学 Q4 CHEMISTRY, PHYSICAL

Kinetics and Catalysis Pub Date : 2024-04-27 DOI:10.1134/S0023158424010026

V. B. Kharitontsev, M. V. Grigoriev, E. A. Tissen, P. A. Zubenko, N. Yu. Tretyakov, A. V. Elyshev

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Abstract

Pyrolysis of high-density polyethylene in the presence of aluminosilicate materials containing nickel oxide has been studied. The catalytic pyrolysis of plastics makes it possible to convert polymers into chemical compounds, which can later be used as additional sources of fuels and raw materials for chemical industry or polymer production. The physicochemical parameters of the materials containing nickel oxide were determined by Fourier-transform IR spectroscopy, X-ray diffraction analysis, N₂ physical adsorption method, thermogravimetric analysis, and pyrolytic gas chromatography. The chemical composition of polyethylene pyrolysis products was found to depend on the type of support used and the presence of nickel oxide in it. The presence of nickel oxide in the studied aluminosilicates increases the Lewis acidity and the content of aromatic compounds in the pyrolysis products. The activation energy of polyethylene pyrolysis in the presence of MSM-41 containing nickel oxide was calculated from the experimental data.

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含氧化镍的硅酸铝材料存在时聚乙烯的热解分解

摘要研究了在含有氧化镍的硅酸铝材料存在下的高密度聚乙烯热解。塑料的催化热解使聚合物转化为化合物成为可能，这些化合物随后可用作额外的燃料来源以及化学工业或聚合物生产的原材料。傅立叶变换红外光谱法、X 射线衍射分析法、N2 物理吸附法、热重分析法和热解气相色谱法测定了含氧化镍材料的理化参数。研究发现，聚乙烯热解产物的化学成分取决于所使用的支持物类型以及其中是否含有氧化镍。所研究的铝硅酸盐中氧化镍的存在增加了热解产物的路易斯酸度和芳香族化合物的含量。根据实验数据计算了在含有氧化镍的 MSM-41 存在下聚乙烯热解的活化能。

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来源期刊

Kinetics and Catalysis 化学-物理化学

CiteScore

2.10

自引率

27.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Kinetics and Catalysis Russian is a periodical that publishes theoretical and experimental works on homogeneous and heterogeneous kinetics and catalysis. Other topics include the mechanism and kinetics of noncatalytic processes in gaseous, liquid, and solid phases, quantum chemical calculations in kinetics and catalysis, methods of studying catalytic processes and catalysts, the chemistry of catalysts and adsorbent surfaces, the structure and physicochemical properties of catalysts, preparation and poisoning of catalysts, macrokinetics, and computer simulations in catalysis. The journal also publishes review articles on contemporary problems in kinetics and catalysis. The journal welcomes manuscripts from all countries in the English or Russian language.