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  1. 紀要掲載論文
  2. 北見工業大学研究報告
  3. Vol.18

Transient Characterization of Carbon Monoxide, Carbon Dioxide and Oxygen Adsorbed on MgO and MgCO_3*

https://kitami-it.repo.nii.ac.jp/records/6595
29be4c7c-ae71-4a4f-9f7e-bd2af9f156b8
名前 / ファイル ライセンス アクション
18-1-4.pdf 18-1-4.pdf (7.2 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2007-04-09
タイトル
タイトル Transient Characterization of Carbon Monoxide, Carbon Dioxide and Oxygen Adsorbed on MgO and MgCO_3*
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
著者 Yasuyuki, KONISHI

× Yasuyuki, KONISHI

WEKO 33211

Yasuyuki, KONISHI

Search repository
Toshio, KATAGIRI

× Toshio, KATAGIRI

WEKO 33212

Toshio, KATAGIRI

Search repository
Shichi, YASUI

× Shichi, YASUI

WEKO 33213

Shichi, YASUI

Search repository
Yoshinori, NAKANISHI

× Yoshinori, NAKANISHI

WEKO 33214

Yoshinori, NAKANISHI

Search repository
Tohru, KANNO

× Tohru, KANNO

WEKO 33215

Tohru, KANNO

Search repository
Masayoshi, KOBAYASHI

× Masayoshi, KOBAYASHI

WEKO 33216

Masayoshi, KOBAYASHI

Search repository
抄録
内容記述タイプ Abstract
内容記述 The dynamic adsorption behavior of O_2, CO and CO_2 on MgO and MgCO_3 has been studied in detail at temperatures ranging from 150 to 171℃, by using the transient response method. 0n MgCO_3 no CO adsorbs and no CO oxidation proceeds. CO_2 is reversibly adsorbed obeying the Langmuir isotherm and the heat of adsorption is evaluated to be 2.7kcal/mol. On MgO, on the other hand, no CO adsorbs whereas the oxidation of CO easily proceeds and the rate equation is expressed : γ=kPco^<0.63>Po_2^<0.29> The apparent activation energy of reaction is estimated to be 14.6 kcal/mol. CO_2, adsorbs on the surface in both the reversible and irreversible forms. The reversibly adsorbed CO_2 has 4.3 kcal/mol of activation energy for adsorption and 13 kcal/mol for desorption. The irreversibly adsorbed CO_2 can partly desorb by elevating the temperature. A large part of the surface is covered with the strongly adsorbed CO_2, the surface coverage of which is 0.86. Only a small part of the active sites (θ=4.2×10^<-4>) is available for the adsorption of oxygen and one fifth of the amount is irreversible. The mode of the transient response curves obtained in the oxidation of CO indicates a typical monotone type suggesting that the reaction rate is controlled by the surface reaction and the desorptipon of CO_2.
書誌情報 北見工業大学研究報告

巻 18, 号 1, p. 45-62, 発行日 1986-11
フォーマット
内容記述タイプ Other
内容記述 application/pdf
著者版フラグ
値 publisher
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出版者 北見工業大学
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