加圧下におけるバイオマスの熱分解・ガス化特性  [in Japanese] Pyrolysis and Gasification Experiments of Biomass Under Elevated Pressure Condition  [in Japanese]

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Author(s)

Abstract

This paper reports on the pyrolysis and CO_2-gasification of various biomass materials in a pressurized thermobalance. In particular, the primary yields of total volatiles, tar and non-condensable gases, together with the composition of non-condensable gases, are measured as a function of temperature at 1 atm and 10.8 ata. The use of a high-intensity infrared heating source, in conjunction with a non-absorbing carrier gas (viz. argon), is reported to reduce the significance of secondary gas-phase pyrolysis reactions. Linear trends with atomic H/C ratio are observed in the tar yield, total volatile yield and CH_4 yield during pyrolysis. The gasification kinetics of biomass chars (pyrolysed to 700℃ at a medium heating rate) have also been measured by measuring the rate of weight loss during reaction with CO_2 as a function of temperature. First-order kinetic rate constants are then determined by fitting the weight loss data using a random pore model. The results indicate that the reactivity of the biomass materials is intermediate between lignin and cellulose and that they are much more reactive than a black coal char.

Journal

  • Transactions of the Japan Society of Mechanical Engineers B

    Transactions of the Japan Society of Mechanical Engineers B 73(731), 1434-1441, 2007-07-25

    The Japan Society of Mechanical Engineers

References:  24

Cited by:  3

Codes

  • NII Article ID (NAID)
    110006367690
  • NII NACSIS-CAT ID (NCID)
    AN00187441
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03875016
  • NDL Article ID
    8902618
  • NDL Source Classification
    ZN11(科学技術--機械工学・工業)
  • NDL Call No.
    Z16-109
  • Data Source
    CJP  CJPref  NDL  NII-ELS 
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