| 管式反应器石灰雾液脱硫的数学模拟 |
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| 引用本文： | 陆永琪,郝吉明,姚小红,周中平.管式反应器石灰雾液脱硫的数学模拟[J].环境科学学报,1999,19(6):636-641. |
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| 作者姓名： | 陆永琪 郝吉明 姚小红 周中平 |
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| 作者单位： | 清华大学环境科学与工程系,北京,100084 |
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| 摘 要： | 建立的一维管式反应器雾液脱硫模型是对蒸发和吸收过程的耦合，以膜理论为基础的吸收机理同时考虑了含硫组分的离解、扩散、反应和固体颗粒的溶解。参数敏感性分析表明，对系统脱硫率影响最显的是出口干湿球温差，石灰颗粒粒度和入口ＳＯ２浓度、传质过程的分析表明，反应开始阶段液膜扩散和固体溶解阻力均存在，而气膜扩散在整个反应过程中都起着重要作用。
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| 关 键 词： | 雾化浆液 脱硫 模型 敏感性分析 传质 |
| 收稿时间： | 1998/1/21 0:00:00 |
| 修稿时间： | 1999/4/30 0:00:00 |
Mathematical modeling of SO2 removal with limespraysin atubularre actor |
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| LU Yongqi,HAO Jiming,YAO Xiaohong and ZHOU Zhongping.Mathematical modeling of SO2 removal with limespraysin atubularre actor[J].Acta Scientiae Circumstantiae,1999,19(6):636-641. |
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| Authors: | LU Yongqi HAO Jiming YAO Xiaohong and ZHOU Zhongping |
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| Institution: | Dept.of Environ.Scienceand Eng., Tsinghua University, Beijing 100084,Dept.of Environ.Scienceand Eng., Tsinghua University, Beijing 100084,Dept.of Environ.Scienceand Eng., Tsinghua University, Beijing 100084 and Dept.of Environ.Scienceand Eng., Tsinghua University, Beijing 100084 |
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| Abstract: | Amodeltosimulatethedesulfurizationofspraysinatubularreactor wasestablishedincombi nation withthe spray evaporation and SO2 absorption.Based on the film theory,theionization,diffusion and reaction ofsulfurconsitituents,andthedissolution oflimeparticulate wereconsideredintegrallyinthe model.Thesensitivity analysis of modelparametersshowed thattheefficiency of SO2 removalin such a system was highly dependentontheapproachtoadiabatictemperatureatexit,thesize ofsuspendedlime particulate andtheSO2concentrationinfluegas.Furthermore,thecalculation of masstransferrevealedthe obviousimportanceofgas film diffusion duringthe wholeprocedure,whiletheresistanceofliquidfilm and lime dissolution emerged only attheinitialstage ofabsorption.The model was proventoagree well with the experimentalresults with an averagerelativeerrorof8% . |
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| Keywords: | sprays desulfurization model sensitivity analysis masstransfer |
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