| 无机盐对SO2—H2O—CaCO3气液固三相反应系统pH值的影响 |
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| 引用本文： | 李玉平,谭天恩.无机盐对SO2—H2O—CaCO3气液固三相反应系统pH值的影响[J].环境污染与防治,1997,19(5):1-5. |
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| 作者姓名： | 李玉平 谭天恩 |
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| 作者单位： | 浙江大学化工系环境科学与工程研究所!杭州310027，北京理工大学化工与材料学院，浙江大学化工系环境科学与工程研究所!杭州310027，浙江大学化工系环境科学与工程研究所!杭州310027 |
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| 摘 要： | 研究了硫酸钠、硝酸钠和氯化钠及相应钙盐对石灰石浆液烟气脱硫条件下ＳＯ２－Ｈ２Ｏ－ＣａＣＯ３气、液、固三相反应系统中ｐＨ值的影响。发现硫酸钠能明显提高系统的ｐＨ值，硝酸钠和氯化钠使ｐＨ值提高的幅度不大，而３种钙盐均使ｐＨ值降低。根据膜模型的分析结果，认为无机盐影响该反应系统ｐＨ值的主要原因是无机盐的加入改变了石灰石表面的ｐＨ值。
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| 关 键 词： | 烟气脱硫 石灰石 无机盐 pH值 |
Effects of Salts on pH of SO_2-H_2O-CaCO_3 Reaction System |
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| Li Yuping, Tan Tian''''en, Jing Guohong.Effects of Salts on pH of SO_2-H_2O-CaCO_3 Reaction System[J].Environmental Pollution & Control,1997,19(5):1-5. |
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| Authors: | Li Yuping Tan Tian'en Jing Guohong |
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| Abstract: | In order to improve the operating performance of flue gas desulfurization with limestone slurry, the effects of some salts on pH of SO2-H2O-CaCO3 reaction system in wet flue gas desulfurization were studied. It was found that Na2SO4 could greatly increase the pH value,NaNO3 and NaCl could increase the pH value slightly,and their calcium salts would decrease the pH value. Based on the film theory, the reason is that salts change the pH value of the CaCO3 solid surface. |
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| Keywords: | Flue gas desulfurization Limestone Additives Salts |
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