| 恒容吸收系统中水和稀硝酸对NO2的吸收过程研究 |
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| 引用本文： | 张 锋,王晓旭,袁 刚,耿 皎,张志炳.恒容吸收系统中水和稀硝酸对NO2的吸收过程研究[J].无机化学学报,2013,29(1):95-102. |
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| 作者姓名： | 张 锋 王晓旭 袁 刚 耿 皎 张志炳 |
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| 作者单位： | 1. 南京大学化学化工学院,南京,210093
2. 南京大学化学化工学院,南京210093;国家有机毒物控制与资源化工程技术研究中心,南京210093 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金，江苏省环保课题(No.2012017)资助项目.The authors are grateful for the financial support from:National Natural Science Foundation of China，Natural Science Foundation of Jiangsu Province |
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| 摘 要： | 采用恒容吸收系统研究了水和稀硝酸对二氧化氮气体的吸收行为,通过测量吸收液的组成和气相压力来考察吸收剂浓度、吸收剂的量和吸收压力对NO2吸收效率和产物的影响。增加水的质量,则吸收效率增加,而所得硝酸的浓度先增加后减小。随着NO2初始压强的增加,水对NO2的吸收效率和所得硝酸浓度均增加。结果表明二氧化氮在稀硝酸中的吸收速度比在水中快,较高的气相初始压力(>90 kPa)或较高的硝酸浓度(>7wt%)都有利于吸收效率的提高。从反应关系分析计算,可获得气相组成、N2O4的转化率和HNO2的分解率等参数,发现随着水的量的增加,N2O4的转化率逐渐增大,而HNO2的分解率先增大后减小,在NO2和水的物质的量的比为0.024时达到最大值。
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| 关 键 词： | 脱硝 吸收 恒容 氮氧化物 |
Absorption of Nitrogen Dioxide in Water and Dilute Nitric Acid Solution with Constant-Volume Absorption System |
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| ZHANG Feng,WANG Xiao-Xu,YUAN Gang,GENG Jiao and ZHANG Zhi-Bing.Absorption of Nitrogen Dioxide in Water and Dilute Nitric Acid Solution with Constant-Volume Absorption System[J].Chinese Journal of Inorganic Chemistry,2013,29(1):95-102. |
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| Authors: | ZHANG Feng WANG Xiao-Xu YUAN Gang GENG Jiao and ZHANG Zhi-Bing |
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| Affiliation: | School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China; National Organic Poison Control and Resource Engineering Technology Research Center, Nanjing 210093, China;School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China; National Organic Poison Control and Resource Engineering Technology Research Center, Nanjing 210093, China |
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| Abstract: | |
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| Keywords: | denitrification absorption constant-volume nitrogen oxides |
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