ハイドルタルサイト担持フィルターによるCO_2の可逆分離 Recovery of CO_2 Using Hydrotalcite Supported Filter

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Hydrotalcite-like compound was obtained in compositional range of 0.2<Mg/(Mg+Al)<0.35 by aging the coprecipitated gel from MgCl<SUB>2</SUB> and AICl<SUB>3</SUB> with NaOH in mixed aqueous solution. Its thermal behavior was investigated on the representative composition of Mg/(Mg+Al)=0.25. The decomposed product in a temperature range of 500-800°C was a MgO-Al<SUB>2</SUB>O<SUB>3</SUB> solid solution and both MgO and spinel crystallized above this temperature range. Hydrotalcite structure was recovered when the former decomposed product was immersed in sodium carbonate aqueous solution. The hydrotalcite gel could be supported in micro pore with its pore diameter>1μm of porous alumina tube. The hydrotalcite supported porous tube showed a reversible absorption of CO<SUB>2</SUB> from atmosphere. The CO<SUB>2</SUB> absorption behavior was affected with humidity.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 46(3), 300-304, 1999-03-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002262112
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4690250
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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