Adsorption of CO_2 and N_2 onto Charcoal Treated at Different Temperatures
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- Pattaraprakorn Woraratana PATTARAPRAKORN Woraratana
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Nakamura Ryuichi NAKAMURA Ryuichi
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Aida Takashi [他] AIDA Takashi
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- NIIYAMA Hiroo
- Global Scientific Information and Computing Center, Tokyo Institute of Technology
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Author(s)
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- Pattaraprakorn Woraratana PATTARAPRAKORN Woraratana
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Nakamura Ryuichi NAKAMURA Ryuichi
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- Aida Takashi [他] AIDA Takashi
- Department of Chemical Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology
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- NIIYAMA Hiroo
- Global Scientific Information and Computing Center, Tokyo Institute of Technology
Abstract
Adsorption properties of wood charcoal prepared by a traditional method are investigated by using CO<SUB>2</SUB> adsorption at 195 K and N<SUB>2</SUB> adsorption at 77 K, focusing on the effects of the treatment temperature. The amount of CO<SUB>2</SUB> adsorbed at 195 K and N<SUB>2</SUB> adsorbed at 77 K increases with treatment temperature. The shape of the N<SUB>2</SUB> adsorption isotherm indicates that the charcoal is predominantly characterized by micropores with the presences of mesopores, when high treatment temperature is applied. At a low treatment temperature, the ratio of <I>n</I><SUB>CO<SUB>2</SUB></SUB> to <I>n</I><SUB>N<SUB>2</SUB></SUB> is high, whereas, it approaches to unity at the higher treatment temperature than 773 K. The adsorption of CO<SUB>2</SUB> at 195 K can be used for surface area measurement, in place of N<SUB>2</SUB> adsorption at 77 K, for the charcoal treated higher temperature.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 38(5), 366-372, 2005-05-01
The Society of Chemical Engineers, Japan
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