| 尿素溶液分离体系的汽液平衡 |
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| 引用本文： | 魏顺安,杨楠,付雪梅,董立春,张舒雯.尿素溶液分离体系的汽液平衡[J].化学工程,2011,39(11):83-87. |
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| 作者姓名： | 魏顺安 杨楠 付雪梅 董立春 张舒雯 |
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| 作者单位： | 重庆大学化学化工学院,重庆,400044 |
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| 基金项目： | 中央高校基本科研业务费资助项目(CDJZR10220010) |
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| 摘 要： | 以NH3,CO2为原料的合成尿素溶液中含有NH3,CO2,H2O,NH2 CONH2等组分,在减压解吸、蒸发等过程中都需要NH3-CO2-H2O-NH2 CONH2无尿素反应体系的汽液平衡计算.文中采用文献中NH3-CO2-H2O体系以及上述四元体系在温度为60-160℃、压力小于3.0 MPa、液相NH3摩尔分率小于...
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| 关 键 词： | NH3-CO2-H2O-NH2CONH2 汽液平衡 扩展型UNIQUAC方程 二元相互作用能参数 |
Vapor-liquid equilibrium of urea solution separation system |
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| WEI Shun-an,YANG Nan,FU Xue-mei,DONG Li-chun,ZHANG Shu-wen.Vapor-liquid equilibrium of urea solution separation system[J].Chemical Engineering,2011,39(11):83-87. |
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| Authors: | WEI Shun-an YANG Nan FU Xue-mei DONG Li-chun ZHANG Shu-wen |
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| Affiliation: | WEI Shun-an,YANG Nan,FU Xue-mei,DONG Li-chun,ZHANG Shu-wen(College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | The urea solution synthesized from NH3 and CO2 is composed of NH3,CO2,H2O and NH2CONH2.The subsequent processes of decreased-pressure desorption and evaporation are related to the system of NH3-CO2-H2O-NH2CONH2(ACWU) vapor-liquid equilibrium,in which the hydrolysis reaction of urea can be neglected.The SRK equation of state was used to calculate the fugacity coefficients of vapor phase and the activity coefficients of the actual species in liquid phase was described by the extended UNIQUAC equation.A set of... |
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| Keywords: | NH3-CO2-H2O-NH2CONH2 VLE extended UNIQUAC equation interactive-energy parameters |
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