Adsorption of CO_2 and N_2 onto Charcoal Treated at Different Temperatures

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Author(s)

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

  • JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 38(5), 366-372, 2005-05-01

    The Society of Chemical Engineers, Japan

References:  19

Codes

  • NII Article ID (NAID)
    130000019373
  • NII NACSIS-CAT ID (NCID)
    AA00709658
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    00219592
  • NDL Article ID
    7321574
  • NDL Source Classification
    ZP1(科学技術--化学・化学工業)
  • NDL Call No.
    Z53-R395
  • Data Source
    CJP  NDL  J-STAGE 
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