A new vapor-liquid equilibrium apparatus for hydrogen fluoride containing systems

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:416408

Lee, Jongcheon; Kim, Hwayong ^[1]; Lim, Jong Sung; Kim, Jae-Duck; Lee, Youn Yong ^[2]

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1. Seoul National Univ., Soeul (Korea, Republic of)
2. CFC Alternatives Technology Center, Seoul (Korea, Republic of)

A new circulating type apparatus has been constructed to obtain reliable equilibrium PTxy data for hydrogen fluoride (HF) containing system. Equilibrium cell with Pyrex windows protected by Teflon PFA sheets to prevent the corrosion was used. Isothermal vapor-liquid equilibrium data for the 1,1-difluoroethane (HFC-152a) + HF system at 288.23 and 298.35 K were obtained, and compared with PTx measurement results. Experimental data were correlated using Lencka and Anderko equation of state for HF with the Wong-Sandler mixing rule as well as the van der Waals one fluid mixing rule. The Wong-Sandler mixing rule gives better results. 5 refs., 3 figs.

• OSTI ID: 416408
• Report Number(s): CONF-960730-; TRN: 96:006485-0013
• Resource Relation: Conference: 5. world congress of chemical engineering, San Diego, CA (United States), 14-18 Jul 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 5th World Congress of chemical engineering: Technologies critical to a changing world. Volume I: Advanced fundamentals sustainable chemical engineering technology management and transfer international regulations; PB: 1183 p.
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
HYDROFLUORIC ACID
EQUILIBRIUM
ETHANE
REFRIGERANTS
VAPORS
LIQUIDS
PRESSURE MEASUREMENT
TEMPERATURE MEASUREMENT
TEMPERATURE RANGE 0273-0400 K
LABORATORY EQUIPMENT