Influence of activation on the pore structure of adsorbents obtained from coal–alkali mixtures
- Авторы: Nechaeva T.1, Fedorova N.1, Ismagilov Z.1
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Учреждения:
- Federal Coal and Coal-Chemistry Research Center, Siberian Branch
- Выпуск: Том 60, № 6 (2017)
- Страницы: 239-242
- Раздел: Chemistry
- URL: https://journals.rcsi.science/1068-364X/article/view/226283
- DOI: https://doi.org/10.3103/S1068364X17060072
- ID: 226283
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Аннотация
The activation of carbon sorbents in CO2 is investigated. The sorbents are produced by the thermolysis of naturally oxidized SS coal steeped in potassium hydroxide, with an alkali/coal ratio RKOH = 0.01 and 0.05 g/g. The influence of CO2 activation on the texture of the sorbents obtained is established. After 10-min activation, the increase in specific surface area of the sorbents is a maximum (about 100%). Longer activation increases the loss of material. The pore volume formed on activation is proportional to the proportion of carbon-bearing material removed. The volume of adsorbing pores formed in the sorbents is greatest when the loss of material is 25–35%.
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Об авторах
T. Nechaeva
Federal Coal and Coal-Chemistry Research Center, Siberian Branch
Автор, ответственный за переписку.
Email: maninats@iccms.sbras.ru
Россия, Kemerovo
N. Fedorova
Federal Coal and Coal-Chemistry Research Center, Siberian Branch
Email: maninats@iccms.sbras.ru
Россия, Kemerovo
Z. Ismagilov
Federal Coal and Coal-Chemistry Research Center, Siberian Branch
Email: maninats@iccms.sbras.ru
Россия, Kemerovo