温度为373.15 ~ 423.15 K的去离子水和NaCl水溶液中二氧化碳和硫化氢的汽液平衡研究

M. F. Zaidin, A. Valtz, C. Coquelet, A. Chapoy
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引用次数: 0

摘要

在温度为373.15 ~ 423.15 K,压力为25.0 MPa的条件下,得到了二氧化碳(CO2)和硫化氢(H2S)混合物在去离子水和NaCl水溶液中的汽液平衡(VLE)数据。本文采用静态解析型方法,利用两个磁性毛细管采样器进行相位采样。将本文生成的VLE数据与文献数据、段模型和简化立方正关联(CPA-SRK72)状态方程(EoS)模型预测结果进行了比较。结果表明,CPA-SRK72 EoS模型能够较好地预测CO2和H2S在水和NaCl水溶液中的相行为,且与实测数据的绝对平均偏差(AAD)较低。
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Vapour-Liquid Equilibrium Study for the Carbon Dioxide and Hydrogen Sulphide in Deionized Water and NaCl Aqueous Solution at Temperature from 373.15 to 423.15 K
New vapour liquid equilibrium (VLE) data for carbon dioxide (CO2) and hydrogen sulphide (H2S) mixture in deionized water and NaCl aqueous solution are generated at temperature range from 373.15 to 423.15 K and pressure up to 25.0 MPa. A static-analytic type method, taking advantage of two magnetic capillary samplers for phase sampling is used for this VLE measurements. The VLE data generated in this work are compared against literature data, Duan model and the simplified cubic plus association (CPA-SRK72) Equation of State (EoS) model predictions. From the results, it is demonstrated that the CPA-SRK72 EoS model is able to predict the phase behaviour of CO2 and H2S in water and NaCl aqueous solutions with low absolute average deviation (AAD) against the measured experimental data.
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