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- W2904231933 abstract "Abstract This paper investigates the methane adsorption characteristics of activated carbons produced from coal by activation with KOH, NaOH and ZnCl 2 treatments at different agent to coal ratios (1:1–6:1) and temperatures (600–800 °C) under N 2 flow. CH 4 adsorption capacities and desorption behaviors of the activated carbons were examined at 0 °C and 25 °C. The relationship between CH 4 adsorption characteristics and surface properties of activated carbons, such as BET surface area determined by N 2 adsorption at −196 °C, and micropore volume determined by CO 2 adsorption at 0 °C were investigated. Optimal results for CH 4 adsorption at 0 °C and 25 °C were obtained for the activated carbon samples obtained with KOH treatment at 800 °C at 4:1 ratio, as 2.67 and 1.12 mmol/g, respectively. The results have shown that CH 4 adsorption increased proportionally with micropore volume of activated carbons, whereas BET surface area does not exhibit an exact consistency. CH 4 adsorption-desorption isotherms at 25 °C have shown that an increase in mesopore formation caused a decrease in adsorption; but allowed desorption to be reversible. Higher methane adsorption capacities were obtained from activated carbons produced from coal by various treatments in this study than most of the reported results in literature at the similar conditions, indicating the suitability of the evaluated materials for industrial applications of methane storage." @default.
- W2904231933 created "2018-12-22" @default.
- W2904231933 creator A5020061498 @default.
- W2904231933 creator A5082722879 @default.
- W2904231933 date "2018-12-18" @default.
- W2904231933 modified "2023-09-27" @default.
- W2904231933 title "Effect of Surface Area and Micropore Volume of Activated Carbons from Coal by KOH, NaOH and ZnCl2 Treatments on Methane Adsorption" @default.
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- W2904231933 doi "https://doi.org/10.1515/ijcre-2018-0146" @default.
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