Hydrocarbons thermophysical properties

Reza, J., Trejo, A., and Vera-Avila, L.E. Water solubility and solution enthalpy of polycyclic aromatic hydrocarbons, in Fourteenth Symposium on Thermophysical Properties, (Boulder, CO National Institute of Standards and Technology. 2000). 

Thermophysical properties for more than 7,800 chemicals and hydrocarbons are presented in this book for temperature dependent properties. Values for enthalpy of vaporization at normal boiling point are provided for more than 22,000 compounds. The comprehensive coverage includes C1 to C100 organics and Ac to Zr inorganics. 

SUPBRTRAPP - National Institute of Standards and Technology (NIST) Thermophysical Properties of Hydrocarbon Mixtures Database. ... 

Chemical reactions normally require a solvent that can dissolve all the raw materials. Reaction kinetics and selectivity may be affected by the choice of solvent. Thermophysical properties of solvents are also very important for endothermic and exothermic reactions. Water, hydrocarbons, alcohols, ketones, chlorinated solvents, and amines are the most widely used solvents in the chemical process industry. In many applications, the solvent is consumed as a raw material. One example is the manufacture of esters, where alcohol takes part in the reaction. 

While chemical engineers most often deal with mixtures, knowledge of pure-fluid properties is indispensable for at least three reasons. First, many processes make use of fluids that are close enough to pure that pure-fluid properties suffice. Many industrial uses of water and steam faU into this category. Second, pure-fluid behavior can often be used as a surrogate for a mixture of similar compounds for example, sometimes it is desirable to model hydrocarbon mixtures as a small number (perhaps even one) of known components. Third, and perhaps most important, most models for thermophysical properties of mixtures employ properties of the pure components as a starting point the underlying pure-component data must be accurate in order to describe the mixture. 

Huber, M. L., NIST Thermophysical Properties of Hydrocarbon Mixtures Database (SUPERTRAPP), NIST Standard Reference Database 4, Version 3.1, National Institute of Standards and Technology, Gaithersburg, MD, 2003. http //www.nist.gov/srd/nist4.htm. 

Pctrt D. Thermophysical Properties of Solids Pctrt E. Pulse Method of Measuring Thermophysical Parameters Vol. 13 Analysis of Complex Hydrocarbons... 

THERMOPHYSICAL PROPERTIES OF LIQUID SATURATED HYDROCARBONS IN RELATION TO TEMPERATURE. 

SINGLE-PARAMETER BENEDICT-WEBB-RUBIN EQUATION OF STATE FOR HYDROCARBONS AND THEIR MIXTURES AND THE THERMOPHYSICAL PROPERTIES OF BUTYLENE. 

Tables of calorimetric data are formd in a. Landolt-Boemstein (1956-71) Zahlenwerte und Funktionen. Springer, Berlin, 6 ed, Vol II, Parts 1-5 continued as Hellwege KH, ed. New Series Group IV Macroscopic and Technical Properties of Matter, b. Am Pet Inst Research Proj 44 Selected Values of Properties of Hydrocarbon and Related Compounds. Thermodynamics Res Center, Texas A M University, College Station, TX. c. Touloukian YS, Ho CY, eds (1970-1979) Thermophysical Properties of Matter, The TPRC Data Series. Vols 4-6, Specific Heat. IFI/Plenum, New York, NY. d. NBS Technical Notes 270-3 to 270-7 (1968-1973) Selected Values of Chemical Thermodynamic Properties. Institute for Basic Standards, National Bureau of Standards, Washington, DC. e. Karapet yants MKh, Karapet yants ML (1970) Thermodynamic Constants of Inorganic and Organic Compounds. Humphrey Sci Publ, Ann Arbor. Translated by Schmork J. f. Lide DR (annual editions) CRC Handbook of Chemistry and Physics. CRC Press, Boca Raton, FL.

Here v and m denote the volume and mass of the molecule or atom, respectively. The r.h.s of Equation 32 denotes the ground-state energy of a quantum mechanical particle enclosed in a potential well (particle in a box problem [Martin and Leonard, 1970]). This condition is not satisfied for liquid helium and liquid hydrogen, while liquid neon is a borderline case. For the theoretical description of their thermophysical properties, application of the Maxwell-Boltzmann statistics sometimes does not suffice. Another assumption states that the internal degrees of freedom of the molecules or atoms are the same in the gas phase and in the liquid phase. In other words, it is assumed that the molecules can rotate and vibrate freely in the liquid phase, too. Molecular rotation may be hindered in the case of long-chain hydrocarbons or silicone fluids with side groups but also for small, nonspherical molecules such as N2,02, CS2, and others, rotation around two axes is restricted due to steric hindrance. Polar molecules exhibit restricted rotation due to the effect of dipolar orientation. 

Riazi, M.R. Al-Sahhaf, T., Physical Properties of n-Alkanes and n-Alkyl Hydrocarbons Application to Petroleum Mixtures , Ind. Eng. Chem. Res., 1995, 34(11), 4145 148. Marano, J.J. Holder, G.D. General Equation for Correlating the Thermophysical Properties of n-Paraffms, n-Olefms, and Other Homologous Series. 2. Asymptotic Behavior Correlations for PVT Properties , Ind. Eng. Chem. Res., 1997, 36(5), 1895-1907. 

XRC Thermodynamic Tables, Hydrocarbons, Thermodynamics Research Center (TRQ, NIST, Thermophysical Properties Division, Boulder, Colorado. 

Tarzimanov, A.A., Lustemik, V.E. Arslanov, V.A. (1987). scosity of Gaseous Hydrocarbons, a Survey of Thermophysical Properties of Compounds, No. 1,63. Moscow Institute of High Temperatures. 

Coefficients of the equadon of state and of the equation for transport properties are stored for each substance. Parameters of the critical point and coefficients of equations for calculadon of the ideal-gas functions, the saturated vapor pressure and the melting pressure are kept also. The thermal properties in the single-phase region and on the phase-equilibrium lines can be calculated on the basis of well-known relations with use of these coefficients. The system contains data for 30 reference substances monatomic and diatomic gases, air, water and steam, carbon dioxide, ammonia, paraffin hydrocarbons (up to octane), ethylene (ethene), propylene (propene), benzene and toluene. The system can calculate the thermophysical properties of poorly investigated gases and liquids and of multicomponent mixtures also on the basis of data for reference substances. 

Labinov, S.D., Soldatenko, Ju.A., Dregulyas, E.K. Bolotin, N.K. (1975). Data center on thermophysical properties of hydrocarbons, their mixtures, oils and oil fractions. Informatsionnyi bjulleten GSSSD (Information bulletin of NSRDS), No. 1,7-8. 

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