Structure-Controlled Pyrolysis of Biomass with Sodium Hydroxide for Suppression of Tar Formation

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Pyrolysis of NaOH-loaded Douglas fir and cellulose has been carried out to determine the effect of sodium hydroxide on the pyrolysis profile. A tar yield of 0 wt% and the char yield of 32 wt% were obtained at a final pyrolysis temperature of 500°C. It was revealed that the amount of hydroxyl groups in the residue significantly decreased at 200°C and that the structure of cellulose was distorted via cross-linking at the same temperature through spectroscopic analyses and diffraction patterns. The cross-linking led to the increase in char yield at 500°C. A detailed analysis showed that char yield from cellulose at 500°C correlated linearly with the degree of cross-linking calculated from the amount of dehydration at 200°C. These results showed a possibility that the pyrolysis profile of biomass may be controlled through an appropriate pretreatment to change the structure of the intermediate.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 41(4), 312-318, 2008-04-01 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10021110139
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    9463066
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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