Investigation on physical activation of some Mongolian coals
DOI:
https://doi.org/10.5564/mjc.v20i46.1238Keywords:
Carbonization, activation, surface area, micropores, mesoporesAbstract
Activation characteristics of four different Mongolian coals were investigated. The coals were carbonized at temperatures of
550 °C and the obtained samples were activated by preheated steam. The pore size, pore volume and surface areas of all activated carbons (AC) have been determined by adsorption of nitrogen (N2) gas. The BET surface areas of Aduunchuluun
(ACAC), Shivee Ovoo (SCAC), Baganuur (BCAC) coal and Ulaan Ovoo coals (UCAC) are 283, 205, 251 and 460 m2/g
respectively. Langmuir surface area is 283 m2/g of ACAC, 230 m2/g of SCAC, 537 m2/g in UCAC and 254 m2/g in BCAC.
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References
Chen X., (2015) Modeling of Experimental Adsorption Isotherm Data., information, 6, 14-22. https://doi.org/10.3390/info6010014
Hamzaoui M., Bestani B and Benderdouche N. (2018) The use of linear and nonlinear methods for adsorption isotherm optimization of basic green 4-dye onto sawdust-based activated carbon., J. Mater. Environ. Sci., 2508(4), 1110-1118.
Purevsuren B., Lin C., Davaajav Y., Ariunaa A., Batbileg S., Avid B., Jargalmaa S., Huang Y and Liou Y., (2015) Adsorption isotherms and kinetics of activated carbons produced from coals of different ranks., Water Sci. Technol., 71.8, 1189-1195. https://doi.org/10.2166/wst.2015.094
Thommes M., Kaneko K., Neimark A.V, Olivier J.P., Rodriguez-reinoso F., Rouquerol J and Sing K.S.W. (2015) Physisorption of gases , with special reference to the evaluation of surface area and pore size distribution ( IUPAC Technical Report). Pure Appllied Chem., 87, 1051-1069. https://doi.org/10.1515/pac-2014-1117
Landers J., Gor Y.G and Neimark A.V., (2013) Density functional theory methods for characterization of porous materials. Colloids Surfaces A Physicochem. Eng. Asp., 3, 437. https://doi.org/10.1016/j.colsurfa.2013.01.007
Ariunaa A., (2011) Investigation of obtain activated carbons from coals by thermal processing. Ph.D thesis, University of Ulaanbaatar, Mongolia.
Demirkıran N., Özdemir G.D.T., Saraç M., Dardağan M. (2017) Adsorption of methylene blue from aqueous solutions by pyrolusite ore. Mong. J. Chem., 18, (44), 5-11. https://doi.org/10.5564/mjc.v18i44.880.
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