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

Title of the article: Textural characteristics of carbon sorbents from coals of various stages of metamorphism

Year: 2019, Issue: 4, Pages: 64-69

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

Index UDK: 662.74; 544.723.212

DOI: 10.26730/1999-4125-2019-4-64-69

Abstract: The textural characteristics of sorbents from subbituminous “D”, high volatile bituminous “G”, low volatile bituminous “SS” and lean “T” coals were investigated. The sorbents were prepared at 800°C by alkaline activation with potassium hydroxide at the KOH / coal mass ratio (RKOH) 0.5 g/g. The values of textural characteristics of the prepared sorbents (pore volume, micropore volume, and specific surface area) were determined using the low-temperature nitrogen adsorption method (ASAP-2400 analyzer). It is shown that the sorbents prepared in this work are predominantly microporous. The sorbent based on subbituminous coal has the highest textural characteristics, its specific surface area is 1220 m²/g and the pore volume is 0.54 cm³/g.

Key words: carbon sorbents coal alkaline activation porous structure textural characteristics

Receiving date: 01.07.2019

Publication date: 19.12.2019

CITE DOWNLOAD