Modified UNIFAC Model for the Prediction of Henry's Constants

Document Type

Article

Publication Date

7-1-1983

Abstract

A group-contribution model for the correlation and prediction of Henry's constants in single solvents is presented. The model involves a one-parameter per gas/solvent group pair UNIFAC expression extended to incorporate free volume effects. The model Is applied to three gases, CH4, N2, and O2, in alkane solvents and in water. Good results, including a successful description of the temperature dependency of the Henry's constants, are obtained with typical accuracy of ±10%. © 1983, American Chemical Society. All rights reserved.

Identifier

0020780933 (Scopus)

Publication Title

Industrial and Engineering Chemistry Process Design and Development

External Full Text Location

https://doi.org/10.1021/i200022a020

ISSN

01964305

First Page

457

Last Page

462

Issue

3

Volume

22

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