INHIBITION OF THE RELEASE OF ALKALI METALS FROM COAL DURING HEAT TREATMENT WITH THE ADDITION OF CLAY MINERAL

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概要

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• We attempt to prevent the release of sodium and potassium during pyrolysis and CO_2 gasification of low-rank coals using clay minerals. Although the release behaviors of alkali metals were almost the same for different coal species, the amounts of alkali metals released differed. The release extent of alkali species from Yallourn coal was higher than that from Barau coal during heat treatments. With the addition of clay minerals, the release of alkali metals was inhibited. In particular, alkali metal release was effectively inhibited during gasification. The inhibition of both the releases of sodium and potassium could be sufficient with the addition of 10wt% kaolinite sample during the heat treatment, while the inhibition of the release of alkali metals with the addition of 10wt% pyrophyllite sample was not confirmed. As a result, kaolinite could be used to inhibit alkali metal release from coal during coal conversion.

• 日本粘土学会の論文

著者

• 村上 賢治

  秋田大学工学資源学部

• 村上 賢治

  秋田大鉱山

• WAJIMA Takaaki

  Faculty of Engineering and Resource Science, Akita University

• SUGAWARA Katsuyasu

  Faculty of Engineering and Resource Science, Akita University

• Wajima Takaaki

  Akita Univ. Akita Jpn

• Wajima Takaaki

  Faculty Of Engineering And Resource Science Akita University

• KATO Takahiro

  Faculty of Textile Science and Technology, Shinshu University

• MURAKAMI Kenji

  Faculty of Engineering, Yamaguchi University

• Sugawara Takuo

  Faculty Of Engineering And Resource Science Akita University

• AMI YOSHINORI

  Faculty of Engineering and Resource Science, Akita University

• Ami Yoshinori

  Faculty Of Engineering And Resource Science Akita University

• Sugawara Katsuyasu

  Akita Univ. Akita Jpn

• Sugawara Katsuyasu

  Faculty Of Engineering And Resource Science Akita University

• Kato Takahiro

  Faculty Of Engineering And Resource Science Akita University

• Murakami Kenji

  Faculty Of Agriculture Okayama University

• Sugawara Katsuyasu

  Facultiy of Engineering and Resource Science, Akita University

• Sugawara Takuo

  Facultiy of Engineering and Resource Science, Akita University

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