On Gas-Liquid Combustion Reactor Theory (Ideally Stirred Reactor)

ABSTRACT

This paper deals with the theory of high-temperature gas-liquid ideally stirred reactors in which a monodisperse droplets or bubbly mixtures react. A new model of gas-liquid combustion reactors is proposed. This model takes into account the principal peculiarities of gas-liquid reactive systems: multistage character of the process as well as its dependence on physico-chemical and structural properties of the medium. The theoretical description of the phenomenon is based on the thermal theory of combustion and interpenetrating continua model of two-phase media. In this approximation the heat and mass balance equations for actual and space-average temperatures and concentrations are obtained. The dimensional analysis of the system of governing equations is used to minimize the number of non-dimensional parameters describing the process in the gas-liquid ideally stirred combustion reactors. In the limiting case of activated reactions the parametrical equation determining stationary states of gas-liquid stirred reactor is found. This equation is applied for classification of the operating regimes of gas-liquid reactors. The peculiarities of the ideally stirred gas-liquid combustion reactors are considered in relation with the change of their regime parameters as well as with the variation of physico-chemical and structural characteristics of gas-liquid media.

Key Words:

• Gas-liquid reactive media
• ideally stirred reactor
• combustion reactor