Authors: I.Yu. Zykov, A.A. Zvekov, Yu.N. Dudnikova, Fedorova , Z.R. Ismagilov

Title of the article: Study of physical and chemical characteristics of carbon sorbents from Kuzbass coals

Year: 2019, Issue: 5, Pages: 20-27

Branch of knowledge: 05.17.07 Chemical technology of fuel and high-energy substances

Index UDK: 543.053

DOI: 10.26730/1999-4125-2019-5-20-27

Abstract: The work presents the results of the physical and chemical properties study (ash, water-soluble ash, total and water-soluble iron) for carbon sorbents from Kuzbass coals. The sorbents were prepared by alkaline activation with potassium hydroxide at the KOH / coal mass ratio 1 g / g and at the temperature 800°C. It is shown that alkaline activation does not significantly change the ash content of the prepared sorbents. The amount of carbon in the sorbents prepared in the work almost does not differ and keeps constant at various amounts of carbon in the raw coals. By the SEM method the different nature of the surface of carbon sorbents is shown based on different coals. For the sorbents from low grade coals a spongy texture is typical, for sorbents from high grade coals schistose texture is typical. The content of water-soluble iron and total iron, the amount of water-soluble ash is investigated in the obtained carbon sorbents.

Key words: carbon sorbents characteristics of sorbents coal alkaline activation SEM

Receiving date: 25.09.2019

Publication date: 31.12.2019

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