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水溶液のCO2ガスの吸収および放散に関する研究
https://tsuyama-nit.repo.nii.ac.jp/records/1143
https://tsuyama-nit.repo.nii.ac.jp/records/1143383ae335-7e8e-4d7e-9200-f73143df0b84
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
津山工業高等専門学校紀要_41-12 (863.5 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||
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| 公開日 | 2000-01-04 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | 水溶液のCO2ガスの吸収および放散に関する研究 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | A Study of CO2 Gas Absorption into and Desorption from Aqueous Solution | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | jpn | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||
| 著者 |
中村, 正憲
× 中村, 正憲
× 原田, 和之
× 小島, 鮎美
× 樋口, 敏三
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| 著者（別表記） | ||||||||||||||
| 姓名 | Nakamura, Masanori | |||||||||||||
| 著者（別表記） | ||||||||||||||
| 姓名 | Harada, Kazuyuki | |||||||||||||
| 著者（別表記） | ||||||||||||||
| 姓名 | Kojima, Ayumi | |||||||||||||
| 著者（別表記） | ||||||||||||||
| 姓名 | Higuchi, Binzo | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | In this paper the absorption rate and the desorpotion rate of CO2 gas by simultaneous measurement of pH and CO2 concentration in HCl and NaOH aqueous solution were studied by blowing CO2 gas and N2 gas through an upward vertical glass nozzle. The results are summarized as follows. (1) In the case of CO2 gas absorption into NaOH aqueous solution, the reaction of CO2 and OH(-) ion was considered as pseudo first order irreversible reaction while CO2 concentration was maintained at zero. The values of activation energies of the apparent absorption rate, (S/V)kL*, in NaOH aqueous solution and (S/V)kL in HCl aqueous solution were found to be 17.7kJ/mol and similar 12.3kJ/mol, respectively. A linear relationship was found between (S/V)kL* which was 1.9 times as much as (S/V)kL, and CO2 gas flow. It seems that the process of mass transfer in liquid film was the rate determining step in this reaction. (2) In the case of desorption from NaOH aqueous solution, the apparent desorption rate, (S/V)kL, was equal to that from HCl solution, even though added NaOH quantity was varied in the range of CO2 relative concentration above 10%. The value of activation energy of (S/V)kL in NaOH aqueous solution was 11.9kJ/mol and as much as 13.8kJ/mol in HCl aqueous solution. A linear relationship between (S/V)kL and N2 gas flow were found. It seems that the process of mass transfer in liquid film was the rate determining step in this reaction. (3) On the basis of the above, the absorption and desorption rate equations of CO2 gas into and from HCl and NaOH aqueous solution were obtained and the time variations of pH and CO2 concentration in those solutions were calculated. Since the calculated values of pH and CO2 concentration coincided fairly well with the experimental values, it proves that these equations are valid. (4) By calculating time variation of total CO2, [CO2]t, it was found that the use of NaOH aqueous solution was more ideal than the use of HCl aqueous solution in the case of CO2 gas absorption, and that there were no differences between the use of HCl aqueous solution and the use of NaOH aqueous solution in the case of CO2 gas desorption. |
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| 日本十進分類法 | ||||||||||||||
| 主題Scheme | NDC | |||||||||||||
| 主題 | 570 | |||||||||||||
| 書誌情報 |
津山工業高等専門学校紀要 en : Bulletin of Tsuyama National College of Technology 巻 41, p. 81-90, 発行日 2000-01-04 |
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| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 0287-7066 | |||||||||||||
| 書誌レコードID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AN00149351 | |||||||||||||
| 出版者 | ||||||||||||||
| 津山工業高等専門学校 | ||||||||||||||
| 出版者（別表記） | ||||||||||||||
| 出版者 | National Institute of Technology, Tsuyama College | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | publisher | |||||||||||||
