Modelling and analysis of a vacuum deaerator

Hussain, Mohd Azlan (1990) Modelling and analysis of a vacuum deaerator. In: Eighteenth Australasian Chemical Engineering Conference Part 2 (of 2), 1990, Auckland, NZ.

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Abstract

A deaerator can be used to remove dissolved gases in water for many industrial processes by use of vacuum. The water normally contains non-ionized gases such as oxygen, argon, methane and ionized gases such as carbon dioxide and hydrogen sulphide, which tend to make the water 'sour'. A description of the deaeration process therefore requires the application of the theory of mass transfer and dissociation reactions, which can be complex if these gases co-exist together. In this study, equilibrium models based on mass balances and equilibrium relationships were developed to calculate the concentration and simultaneous gas removal in the effluent liquid stream at each stage. These models include consideration for the formation and ionization of the ionized gases in solution. These models together with various other data and correlations described in this paper formed the basis of the program to evaluate and simulate the deaeration of gases in water using vacuum.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Conference code: 14196 Export Date: 5 March 2013 Source: Scopus CODEN: 85LFA Language of Original Document: English Correspondence Address: Hussain, Mohd Azlan; Univ Malaya, Kuala Lumpur, Malaysia Sponsors: Air New Zealand; COMALCO New Zealand Ltd; FERNZ Corp; Fletcher Challenge Ltd; Inst of Energy; et al
Uncontrolled Keywords: Air - Desorption; Mass Transfer - Mathematical Models; Water Treatment - Vacuum Applications; Vacuum Deaerators; Chemical Equipment.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 11 Jul 2013 01:32
Last Modified: 11 Jul 2013 01:32
URI: http://eprints.um.edu.my/id/eprint/7102

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