Title: The Rate of Solution of Methane and Propane in Hydrocarbon Oils
Abstract: The apparatus used for determination of the rate of solution
of hydrocarbon gases in hydrocarbon oils by Pomeroy, Scudder,
and Stapp has been improved so that consistent results reproducible
within 3% can be obtained. Methane and propane gases with over 99%
purity have been prepared. The coefficients for the rate of solution
of methane in 16 oils, varying in viscosity from 0.21 to 99 centipoises,
including 6 crude oils, at 86°F (30°C) and 300 lbs./sq.in. (20 atm.)
were measured. The equilibrium concentration of methane in the oil
has been correlated with the density of the original oil. The effect
of temperature on the diffusion coefficient for methane was studied
with 2 crudes and 2 refined oils over the range from 86°F to 140°F (60°C).
A logarithmic correlation of the diffusion constant for methane over
this temperature range has been made with the viscosity of the original
oil and the temperature. The rate of solution of propane in kerosene, and in spray
oil over a temperature range of 96°F to 140°F was determined up to 67%
of the vapor pressure of liquid propane. The equilibrium concentration
in mol fraction of propane in the liquid was found to be a linear function
of the percent of the vapor pressure of liquid propane. The effect on the
diffusion coefficient of the expansion of the liquid due to solution
of gas was calculated and found to be small. The diffusion coefficient
for the highly soluble gas, propane, was found to be a linear function
of the concentration of propane in the liquid and the temperature,
with a variation in the diffusion coefficient of about five-fold.
Publication Year: 1934
Publication Date: 1934-01-01
Language: en
Type: dissertation
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