Modeling of through-reactors with allowance of Large-Scale Effect on Heat and Mass Efficiency of Chemical Apparatuses

TL;DR

This paper presents new simulation methods for evaluating the impact of large-scale effects on heat and mass transfer efficiency in chemical towers with regular packings, considering the influence of initial phase distribution.

Contribution

It introduces simplified models to assess large-scale effects on mass transfer efficiency in regular packed chemical columns, incorporating the influence of initial phase distribution.

Findings

Models effectively describe large-scale effects on efficiency.

Methods are suitable for engineering calculations.

Study highlights the impact of phase distribution on heat and mass transfer.

Abstract

This paper deals also with a problem of gas absorption accompanied by an instantaneous, irreversible reaction in the liquid layer. The well-known methods for calculating such processes are based usually on the certain amendments to solutions, which are obtained disregarding the chemical reaction. Unlike the known work (1. D. Baetens, R. Van Keer, L.H. Hosten. Gas-liquid reaction: absorption accompanied by an instantaneous, irreversible reaction// Moving Boundaries IV, Southampton, Boston, 1997) the approach we used takes into account the influence of reaction resulting product on the arising and velocity of a moving reaction plane. The known results in the theory of chemical apparatuses scaling are devoted to apparatuses with non-regular packings mainly. However how the phases distribution over the regular packings of chemical columns effects the heat and mass efficiency is studied lesser. This paper deals with the methods of simulation the scaling effects applying to chemical towers with regular packings of various types. The models for describing the influence of initial liquid and gas distribution in chemical columns with regular packing on the mass transfer efficiency have been submitted. The sufficiently simple methods for evaluating the influence of large-scale factor on the efficiency of mass transfer have been obtained. These methods are suitable for use in engineering calculation techniques.