Evaluation of Mass-transfer Performance of Emulsion-flow Column with Height of Transfer Unit (HTU) and Number of Theoretical Plates, and Comparison of HTU with Column-type Extractors
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- HIRAYAMA Mikiro
- Department of Chemical Engineering, Kagoshima University
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- GOSHIMA Takashi
- Department of Chemical Engineering, Kagoshima University
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- MIZUTA Kei
- Department of Chemical Engineering, Kagoshima University
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- NII Susumu
- Department of Chemical Engineering, Kagoshima University
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<p>The performance of iodine extraction in the emulsion-flow column was evaluated using an indicator of difficulty in separation, height of transfer unit, HTU and of the number of theoretical plates, Nth. Resulting HTU values ranged from 0.15 to 0.78 m and Nth changed from 0.58 to 1.3. HTU values were formulated in accordance with operating liquid velocities. Despite a 30% margin of error, HTU values were found to be useful in predicting column performance. Observed HTU values were compared with those of conventional extraction columns with or without mechanical agitation. The emulsion-flow column meets the top-level performance of extractors without mechanical agitation, such as packed and spray columns, and performs in the middle range of agitated extractors, although these sacrifice the structure simplicity to assure stable counter-current operation. The advantage of the emulsion-flow column is better HTU values with stable counter-current operation in a simple column structure.</p>
収録刊行物
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- Analytical Sciences
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Analytical Sciences 37 (6), 859-864, 2021-06-10
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390006839645942144
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- NII論文ID
- 130008050699
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- NII書誌ID
- AA10500785
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 031550813
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- PubMed
- 33071266
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可