Investigation of the compaction product on a nickel/diatomaceous earth catalyst

Q4 Chemistry

Voprosy Khimii i Khimicheskoi Tekhnologii Pub Date : 2023-10-01 DOI:10.32434/0321-4095-2023-150-5-24-28

Elshan T. Zeynalov, Narmina T. Aliyeva, Sudaba H. Novruzova, Yelena Y. Shmoncheva

引用次数: 0

Abstract

The activity of the Ni/diatomaceous earth catalyst used in the process of obtaining acetone from isopropyl alcohol was studied in a laboratory setup over a wide temperature range (150–3500C) at atmospheric pressure. The analysis of raw materials and reaction products was carried out by the chromatographic method. In the process of isopropyl alcohol conversion on the Ni/diatomaceous earth catalyst surface, the formation of compaction products and the effect of oxygen and hydrogen on the catalyst surface were studied using a Mag-Ben setup equipped with a quartz-spring reactor. The formation of compaction products on the surface of the Ni/diatomaceous earth catalyst was determined by thermogravimetric and kinetic methods. The maximum amount of compaction products is formed at a temperature of 3000C and above on the Lewis sites. Thermogravimetric studies showed that the formation of compaction product on the surface of the Ni/diatomaceous earth catalyst is time and temperature dependent.

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镍/硅藻土催化剂压实产物的研究

在实验室环境下，在大气压下，在宽温度范围内(150-3500C)研究了镍/硅藻土催化剂在异丙醇制丙酮过程中的活性。采用色谱法对原料和反应产物进行分析。在镍/硅藻土催化剂表面进行异丙醇转化的过程中，利用石英弹簧反应器研究了压实产物的形成以及氧和氢对催化剂表面的影响。采用热重法和动力学方法对Ni/硅藻土催化剂表面压实产物的形成进行了研究。在刘易斯位点，在3000℃及以上的温度下形成最大数量的压实产物。热重研究表明，镍/硅藻土催化剂表面压实产物的形成与时间和温度有关。

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

Voprosy Khimii i Khimicheskoi Tekhnologii Chemical Engineering-Chemical Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： Voprosy Khimii i Khimicheskoi Tekhnologii (Issues of Chemistry and Chemical Technology) is published bimonthly by the Ukrainian State University of Chemical Technology and accepts Ukrainian- or English language high-quality original articles and reviews concerning various fields of research in chemistry and chemical engineering. Our unusual title “Voprosy khimii i khimicheskoi tekhnologii” originates from the transliterated initial Russian title “Issues of Chemistry and Chemical Technology“. The fact of the matter is that Voprosy khimii i khimicheskoi tekhnologii was founded in 1965 as a scientific journal mainly for Russian-reading and Russian-speaking readership when «the Iron Curtain» existed. Since 1991, after Ukraine declared its independence, our Journal began to publish the articles in Ukrainian and English. Multilingualism is our established tradition. We remember and cherish our traditions, but we follow the latest trends in modern science. Papers that are multidisciplinary or address new or emerging areas of chemistry and chemical engineering are particularly encouraged. Thus, the scope is dynamic. It includes but is not limited to the traditional areas of general, inorganic, organic, analytical, physical chemistry and electrochemistry, as well as all conventional areas of chemical engineering (chemistry of high molecular compounds, technology of inorganic and organic substances, processing of combustible minerals, chemical technology of silicates, processes and apparatus of chemical productions, etc.). The Journal publishes papers dealing with newer interdisciplinary areas such as materials science, nano-science, catalysis, computational and theoretical chemistry, surface phenomenon and colloidal systems, environmental chemistry, green chemistry.