Boiling of the Interface between Two Immiscible Liquids below the Bulk Boiling Temperatures of Both Components

TL;DR

This paper develops a theoretical model for boiling at the interface of two immiscible liquids below their individual boiling points, highlighting a phenomenon with technological relevance that has been less studied.

Contribution

It provides a new theoretical framework for understanding boiling between two immiscible liquids both below their bulk boiling temperatures.

Findings

Vapor formation can occur below bulk boiling points.

Theoretical description of interfacial boiling is constructed.

Potential applications in industrial processes are discussed.

Abstract

We consider the problem of boiling of the direct contact of two immiscible liquids. An intense vapour formation at such a direct contact is possible below the bulk boiling points of both components, meaning an effective decrease of the boiling temperature of the system. Although the phenomenon is known in science and widely employed in technology, the direct contact boiling process was thoroughly studied (both experimentally and theoretically) only for the case where one of liquids is becoming heated above its bulk boiling point. On the contrary, we address the case where both liquids remain below their bulk boiling points. In this paper we construct the theoretical description of the boiling process and discuss the actualisation of the case we consider for real systems.