| 喷射式旋转床转子对传质性能的影响 |
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| 引用本文： | 王营,李肖华,李育敏,姚文,许丽英,计建炳.喷射式旋转床转子对传质性能的影响[J].浙江工业大学学报,2012,40(2):133-136. |
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| 作者姓名： | 王营 李肖华 李育敏 姚文 许丽英 计建炳 |
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| 作者单位： | 浙江工业大学浙江省生物燃料利用技术研究重点实验室,浙江杭州,310032 |
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| 基金项目： | 国家科技创新基金资助项目(07C26213300465);浙江省重大科技计划项目(2002C11032) |
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| 摘 要： | 采用乙醇-水体系,在常压全回流条件下,对三种转子的喷射式旋转床进行精馏试验.结果表明:喷射式旋转床的每米理论塔板数均随气相动能因子、转速的增大出现峰值,转子Ⅰ的传质效率高于转子Ⅱ和转子Ⅲ.转子Ⅰ的每米理论塔板数在30～42块之间.每块理论板压降随气相动能因子、转速增大而增大,在相同条件下转子Ⅰ的每块理论板压降低于转子Ⅱ和转子Ⅲ,转子Ⅰ的比压降在90～180 Pa/块之间.装有液体分布器的转子Ⅰ的每米理论塔板数比无液体分布器时的高40％～60％.
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| 关 键 词： | 喷射式旋转床 精馏 转子 传质 |
Eeffect of rotors on mass-transfer performance in rotating jet bed |
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| WANG Ying
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LI Xiao-hua
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LI Yu-min
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YAO Wen
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XU Li-ying
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JI Jian-bing.Eeffect of rotors on mass-transfer performance in rotating jet bed[J].Journal of Zhejiang University of Technology,2012,40(2):133-136. |
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| Authors: | WANG Ying LI Xiao-hua LI Yu-min YAO Wen XU Li-ying JI Jian-bing |
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| Affiliation: | (Zhejiang Province Key Laboratory of Biofuel,Zhejiang University of Technology,Hangzhou 310032,China) |
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| Abstract: | Experiments of total reflux distillation with three types of rotating jet beds were carried out with ethanol-water systems at atmospheric pressure.The results showed that the number of theoretical plates per meter of three types of rotating jet beds(RJB) appeared a peak with the increase of gas kinetic energy factor and rotational speed.Mass-transfer efficiency of rotor Ⅰ was higher than that of rotor Ⅱ and rotor Ⅲ.The number of theoretical plates per meter is 30~42 for rotor Ⅰ.The specific pressure drop increased with the increase of gas kinetic energy factor and rotational speed,and that of rotor Ⅰ lower than that of rotor Ⅱ and rotor Ⅲ.The specific pressure drops is 90~180 Pa for rotor Ⅰ.The number of theoretical plates per meter of rotor Ⅰ of RJB with liquid distributor increased by 40%~60% compared with that of RJB without liquid distributor. |
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| Keywords: | rotating jet bed distillation rotor mass-trasfer |
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