✦ LIBER ✦

Thermal effects in gas absorption

✍ Scribed by Surjit L. Verma; George B. DeLancey

Publisher: American Institute of Chemical Engineers
Year: 1975
Tongue: English
Weight: 671 KB
Volume: 21
Category: Article
ISSN: 0001-1541
DOI: 10.1002/aic.690210112

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The transformation of the energy equation from the mass average to the volume average reference frame exposes a pseudo Dufour effect. The theoretical model for absorption into a stagnant liquid including this effect, the heat of absorption, variable density, an interfacial velocity, and an arbitrary equilibrium condition at the interface is able to predict experimental data over a wide range of conditions. The data consisted of liquid temperature profiles and mass transfer rates into a stagnant liquid. The ammonia‐water system exhibited interfacial temperature rises from 6.9°K to 18.2°K. The interfacial temperature rise for the propane‐decane system was 1.3°K. Simpler theoretical models were able to predict the mass transfer rates or the temperature profiles.

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