Alkaline activation of the donbass coals of different ranks

Autor: Yu. V. Tamarkina, T. G. Shendrik, V. A. Kucherenko
Rok vydání: 2013
Předmět:
Zdroj: Solid Fuel Chemistry. 47:1-6
ISSN: 1934-8029
0361-5219
DOI: 10.3103/s0361521913010096
Popis: The effect of the rank of coal (Cdaf = 80−95.2%) on the yield and characteristics of activated carbons prepared under the conditions of alkaline activation (800°C, 1 h, Ar) at KOH/coal ratios of 1 g/g was studied. Under these conditions, the ability of coals to form porous materials decreased in the metamorphic series. Grade D coal (Cdaf = 80%) exhibited a maximum activation ability to form a material with SBET = 1560 m2/g, VΣ = 0.71 cm3/g, and Vmi = 0.51 cm3/g. A minimum activation ability was found in anthracite (Cdaf = 95.2%), which forms activated carbon with poorly developed porosity (SBET = 306 m2/g, VΣ = 0.15 cm3/g, and Vmi = 0.11 cm3/g).
Databáze: OpenAIRE
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