Calculation of H2O-NH3-CO2 Vapor Liquid Equilibria at High Concentration Conditions

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Calculation of H₂O-NH₃-CO₂ Vapor Liquid Equilibria at High Concentration Conditions

WEI Shun'an; ZHANG Hongjing

Chemistry and Chemical Engineering Institute, Chongqing University, Chongqing 400044, China

Received:1900-01-01 Revised:1900-01-01 Online:2004-02-28 Published:2004-02-28
Contact: WEI Shun'an

高浓度H₂O-NH₃-CO₂体系汽液平衡计算

魏顺安; 张红晶

Chemistry and Chemical Engineering Institute, Chongqing University, Chongqing 400044, China

通讯作者: 魏顺安

Abstract

Abstract: A vapor liquid equilibrium model and its related interactive energy parameters based on
UNIQUAC model for the H2O-NH3-CO2 system without solid phase at the conditions of
temperature from 30℃ to 90℃,pressure from 0.1 MPa to 0.4 MPa, and the maximum NH3 mass
fraction up to 0.4 are provided. This model agrees with experimental data well (average
relative error ＜ 1%) and is useful for analysis of industrial urea production.

Key words: H₂O-NH₃-CO₂ system, vapor liquid equilibrium, high concentration, thermodynamic model

摘要： A vapor liquid equilibrium model and its related interactive energy parameters based on
UNIQUAC model for the H2O-NH3-CO2 system without solid phase at the conditions of
temperature from 30℃ to 90℃,pressure from 0.1 MPa to 0.4 MPa, and the maximum NH3 mass
fraction up to 0.4 are provided. This model agrees with experimental data well (average
relative error ＜ 1%) and is useful for analysis of industrial urea production.

关键词: H₂O-NH₃-CO₂ system;vapor liquid equilibrium;high concentration;thermodynamic model

WEI Shun'an, ZHANG Hongjing. Calculation of H₂O-NH₃-CO₂ Vapor Liquid Equilibria at High Concentration Conditions[J]. .

魏顺安, 张红晶. 高浓度H₂O-NH₃-CO₂体系汽液平衡计算[J]. CIESC Journal.

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Calculation of H₂O-NH₃-CO₂ Vapor Liquid Equilibria at High Concentration Conditions

高浓度H₂O-NH₃-CO₂体系汽液平衡计算

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