Critical property and high-temperature heat-capacity measurements on quinoline and 5,6,7,8-tetrahydroquinoline

Technical Report · Fri Jun 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/6957875· OSTI ID:6957875

Steele, W V; Knipmeyer, S E; Chirico, R D

Critical property and high-temperature heat capacity measurements on quinoline and 5,6,7,8-tetrahydroquinoline are reported. From the measurements, critical temperatures of (787 {plus minus} 2) K and (746 {plus minus} 2) K, and critical densities of (336 {plus minus} 3) kg{center dot}mol{sup {minus}1} and (304 {plus minus} 3) kg{center dot}{sup {minus}1} were obtained for quinoline and 5,6,7,8-tetrahydroquinoline, respectively. Critical pressures of (4820 {plus minus} 50) kPa and (3975 {plus minus} 40) kPa, respectively, were derived from the fitting procedures used. The results from the high-temperature heat capacity measurements were combined with earlier reported measurements at lower temperatures to obtain ideal-gas thermodynamic functions for both quinoline and 5,6,7,8-tetrahydroquinoline in the temperature range 298.15 K to 700 K. The derived values are compared with literature values. Densities for quinoline, estimated using the experimental critical properties determined in this research and extended corresponding states, are compared with literature measurement. Agreement is excellent with a maximum difference of 0.14% at 298 K. Using critical properties estimated via group-contribution methods the agreement is not so good. The difference between experimental and calculated values averages 4.5%. 26 refs., 4 figs.

• Research Organization: National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: FC22-83FE60149
• OSTI ID: 6957875
• Report Number(s): NIPER-469; ON: DE90000246
• Country of Publication: United States
• Language: English

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CRITICAL TEMPERATURE
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
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SPECIFIC HEAT
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TRANSITION TEMPERATURE