On the Thermodynamics of Nucleation in Weak Gas-Liquid Solutions

Abstract

Gas-vapor nucleation in liquid solutions is considered. It is shown that for nucleation to occur in a multicomponent solution a nucleus must be created of at least a certain radius. Consideration is then restricted to weak solutions of gas dissolved in liquids with the gas allowed to behave nonideally. A generalized Kelvin equation is derived which relates the partial pressure of the solvent vapor inside a nucleus to the properties of the surrounding solution. It is shown how, for a given temperature, the pressure at which nucleation occurs in a gas-liquid solution is increased as the gas concentration is increased.

Vapor–liquid nucleation: the solid touch

“…Combining the Kelvin equation for the water and Henry's law for the gas allows for determination of the critical radius [38] r c ¼ 2σ…”

Modification of chemical and physical factors in steamflood to increase heavy oil recovery

“…Additional contributions ,to heterogeneous nucleation were made by Ward and Forest [111], and by Forest [46] for a binary !System, the homogeneous nucleation of which was first presented by Ward et al [110]. The reduction .…”

“…The above is also valid for any equilibrium vapor-liquid interface including those in a cavity (typical of heterogeneous nucleation). When component 2 is slightly volatile, a similar expression can be also derived [110], that generalizes Kelvin's equation. • .c…”

Venezuela-MEM/USA-DOE Fossil Energy Report IV-11: Supporting technology for enhanced oil recovery - EOR thermal processes

“…A model for supersaturated COZ solutions in water has been developed by Wilt (1986), examining the mechanisms ofi homogeneous nucleation, heterogeneous nucleation at a smooth, planar interface and nucleation at interfaces conical and spherical cavities. The basis of his examination is classical nucleation theory as reviewed by Blander & Katz (1975) and Blander (1979) and extended by Ward et al (1970). His bubble stability theory builds on earlier work of Ward et al (1982).…”