| 搅拌反应器中氧气 - 正癸烷 - 水溶液体系的气液传质实验 |
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| 引用本文： | 张永强,毛在砂,陈家镛. 搅拌反应器中氧气 - 正癸烷 - 水溶液体系的气液传质实验[J]. 过程工程学报, 2000, 21(2): 123-127 |
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| 作者姓名： | 张永强 毛在砂 陈家镛 |
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| 作者单位： | 中国科学院化工冶金研究所,北京 100080 |
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| 基金项目： | 国家自然科学基金，中国石油化工总公司资助项目，29792074，，， |
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| 摘 要： | 用亚硫酸钠氧化法测定了机械搅拌高压釜中氧气-亚硫酸钠溶液体系、氧气-正癸烷-亚硫酸钠溶液体系和氧气-正癸烷-亚硫酸钠溶液+表面活性剂体系的气液体积传质系数(k La).研究了搅拌转速、搅拌桨高度、有机相与水相体积比和表面活性剂浓度对k La的影响,得到了经验关联式.k La随有机相体积分率和表面活性剂浓度的增大而降低,随搅拌转速、搅拌桨高度与液相高度比的增大而增大.
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| 关 键 词： | 气液传质 气液液体系 亚硫酸钠氧化法 搅拌反应器 表面活性剂 gas-liquid mass transfer gas-liquid-liquid system |
| 文章编号： | 1001-2052(2000)02-0123-05 |
| 修稿时间： | 1999-04-05 |
Gas-Liquid Mass Transfer of Oxygen-Decane-Sodium Sulfite System in a Stirred Autoclave Reactor |
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| ZHANG Yong-qiang,MAO Zai-sha,CHEN Jia-yong. Gas-Liquid Mass Transfer of Oxygen-Decane-Sodium Sulfite System in a Stirred Autoclave Reactor[J]. Chinese Journal of Process Engineering, 2000, 21(2): 123-127 |
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| Authors: | ZHANG Yong-qiang MAO Zai-sha CHEN Jia-yong |
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| Abstract: | Gas-liquid volumetric mass transfer coefficient, k La, ofthree systems: oxygen-sodium sulfite aqueous solution,oxygen-n-decane-sodium sulfite aqueous solution andoxygen-n-decane-sodium sulfite aqueous solution containingsurfactant CTAB is determined in a mecha- nically-agitated autoclavereactor by oxidation of sodium sulfite in the aqueous phase. Effects ofagitation speed, position of impeller, organic phase to aqueousphase volume ratio (V O/V W), the concentration ofsurfactant on k La are investigated and correlated. Therate of gas-liquid mass transfer is found positively correlated withthe agitation speed and the position of impeller and negativelycorrelated with V O/V W and surfactant concentration. |
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| Keywords: | gas-liquid mass transfer gas-liquid-liquid system oxidation of sodium sulfite stirred reactor surfactant |
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