Vapor-liquid equilibrium for tetrafluoromethane + propane system

doi:10.3969/j.issn.0438-1157.2013.10.004

CIESC Journal ›› 2013, Vol. 64 ›› Issue (10): 3514-3519.DOI: 10.3969/j.issn.0438-1157.2013.10.004

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Vapor-liquid equilibrium for tetrafluoromethane + propane system

LIU Yanni¹, GUO Kaihua², LU Laiyun²

1. School of Civil Engineering, Guangzhou University, Guangzhou 510006, Guangdong, China;
2. School of Engineering, Sun Yat-Sen University, Guangzhou 510275, Guangdong, China

Received:2013-03-17 Revised:2013-05-30 Online:2013-10-05 Published:2013-10-05
Supported by:
supported by the National Natural Science Foundation of China(51076169)and 2013 Guangzhou University Xinmiao Plan(2013-07).

CF₄+C₃H₈体系汽液相平衡

刘燕妮¹, 郭开华², 鹿来运²

1. 广州大学土木工程学院, 广东广州 510006;
2. 中山大学工学院, 广东广州 510275

通讯作者: 刘燕妮(1984-),女,博士,讲师
作者简介:刘燕妮(1984-),女,博士,讲师。
基金资助:
国家自然科学基金项目(51076169);广州大学2013年新苗计划项目(2013-07)

Abstract

Abstract: The isothermal vapor-liquid equilibrium(VLE)for tetrafluoromethane(CF₄)+ propane(C₃H₈)system was measured and P,T,y data were collected at temperatures of 142.96,163.07,183.10,203.26,223.17,243.12,263.15,283.01 and 293.23 K.A vapor recirculation method was used to achieve quick equilibrium.The temperatures were measured with Pt100 platinum resistance thermometers and the uncertainty was less than ±0.005 K.The pressure was surveyed by two absolute pressure transducers,one by Keller PA33 pressure transducer with a full scale of 2 MPa and uncertainty of ±200 Pa,and the other by Mensor 6100 with a full scale of 10 MPa and uncertainty of ±1 kPa.The mixture composition measurement was performed by using a gas chromatograph(Agilent HP 6890N).After careful calibration,uncertainty was within ±0.002 in mole fraction over the whole range of concentrations.The experimental results were correlated with the Peng-Robinson equation of state and the van der Waals two-parameters mixing rule.The mean deviations between the correlated and measured vapor compositions were found satisfactory as 0.011 and the data showed good accuracy and consistency.

Key words: tetrafluoromethane, propane, vapor-liquid equilibrium

关键词: 四氟甲烷, 丙烷, 汽液相平衡

CLC Number:

TK123

LIU Yanni, GUO Kaihua, LU Laiyun. Vapor-liquid equilibrium for tetrafluoromethane + propane system[J]. CIESC Journal, 2013, 64(10): 3514-3519.

刘燕妮, 郭开华, 鹿来运. CF₄+C₃H₈体系汽液相平衡[J]. 化工学报, 2013, 64(10): 3514-3519.

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Vapor-liquid equilibrium for tetrafluoromethane + propane system

CF₄+C₃H₈体系汽液相平衡

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Vapor-liquid equilibrium for tetrafluoromethane + propane system

CF4+C3H8体系汽液相平衡

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CF₄+C₃H₈体系汽液相平衡