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| 氢氧化钠溶液吸收硫酰氟的传质反应动力学 | |
| 作者姓名： | Yong NIE ;Xiao-jiang LIANG ;Mei-zhen LU ;Feng-wen YU ;Da-yong GU ;Min MIN ;Jian-bing JI |
| 作者单位： | [1]College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; [2]Shenzhen International Travel Health Care Center, Shenzhen 518033, China; [3]Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, Saint Paul, MN 55108, USA |
| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 51107118）, and the Science and Technology Plan of General Administration of Quality Supervision of China （No. 201010256651.9） |
| 摘 要： | 研究目的：研究方法：重要结论：确定氢氧化钠溶液化学吸收硫酰氟的传质反应动力学区域，建立增强因子模型。研究气液传质测定设备双搅拌釜中氢氧化钠溶液化学吸收硫酰氟的过程，并结合实验研究与理论分析建立了增强因子模型。基于氢氧化钠溶液化学吸收硫酰氟过程的实验研究，确定了氢氧化钠溶液化学吸收硫酰氟的传质反应动力学区域为快速拟一级反应。得到了298K下其二级反应速率常数为1．44m3／（mol·s），并建立了增强因子模型E=68．08CBL1/2，为脱除熏蒸后残留硫酰氟的工业化应用提供了理论依据。 |
| 关 键 词： | 硫酰氟 氢氧化钠 传质 反应动力学 化学吸收 双搅拌釜 |
Mass transfer and reaction kinetics of sulfuryl fluoride absorption with aqueous sodium hydroxide solutions |
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| Yong NIE,;Xiao-jiang LIANG,;Mei-zhen LU,;Feng-wen YU,;Da-yong GU,;Min MIN,;Jian-bing JI.Mass transfer and reaction kinetics of sulfuryl fluoride absorption with aqueous sodium hydroxide solutions[J].Journal of Zhejiang University Science,2014,15(7):540-546. | |
| Authors: | Yong Nie Xiao-jiang Liang Mei-zhen Lu Feng-wen Yu Da-yong Gu Min Min Jian-bing Ji |
| Institution: | 1. College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China 2. Shenzhen International Travel Health Care Center, Shenzhen, 518033, China 3. Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, Saint Paul, MN, 55108, USA |
| Abstract: | The mass transfer and reaction kinetics of sulfuryl fluoride (SO2F2) absorption with aqueous sodium hydroxide (NaOH) solutions were studied in an experimental double-stirred cell. Results showed that SO2F2 absorption with NaOH was followed by a reaction model employing a fast pseudo-first-order. The second-order rate constant for SO2F2 absorption with aqueous NaOH solutions was determined to be 1.44 m3/(mol·s) at 298 K. Three models were used in this chemical absorption process, and in each case, the same expression of enhancement factor was obtained. A comparison was made between the experimental enhancement factor and the value calculated from the model, and the maximum relative deviation was less than 4.2%. The proposed model expression gave a reasonable fit with the experimental values, indicating that mass transfer correlations are valid for scaling up design. |
| Keywords: | Sulfuryl fluoride Sodium hydroxide Mass transfer Reaction kinetics Absorption Double-stirred cell |
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