I. Measurement of the Latent Heat of Vaporization of Lighter Hydrocarbons - Values for Normal Octane. II. Volumetric and Phase Behavior in the Ethane-Propene System

Citation

McKay, Richard Alan (1959) I. Measurement of the Latent Heat of Vaporization of Lighter Hydrocarbons - Values for Normal Octane. II. Volumetric and Phase Behavior in the Ethane-Propene System. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/049T-H779. https://resolver.caltech.edu/CaltechETD:etd-02172006-102234

Abstract

Part I: A calorimeter, originally built to measure the heat capacities of liquids at temperatures from 100 to 400°F and at pressures up to 1000 pounds per square inch, was modified to extend its utility to include the measurement of latent heats of vaporization of liquids over the same range of conditions. A description of the apparatus and of the procedure used for determining experimentally the heat of vaporization is presented in detail. Experimentally determined values of the latent heat of vaporization of n-octane at temperatures from 100 to 340°F are presented. The results at the lower temperatures agree with the measurements of the National Bureau of Standards within 0.09 per cent. At the higher temperatures the results are within 2 per cent of the values calculated from volumetric and phase behavior data. Part II: The molal volumes of three mixtures of ethane and propene were measured at pressures up to 10,000 pounds per square inch in the temperature interval between 10 and 400°F. The compositions of the coexisting phases were established throughout the two-phase region of this system at temperatures from 10 to 160°F.

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