Modelling of a decarbonation reactor for geothermal waters: application to geothermal waters of Chott El Fejjej

The geothermal waters exploitation infrastructures in Chott El Fejjej (Tunisia) are constantly being damaged by a scaling phenomenon. Experimental work has been carried out on a new kind of decarbonation reactor: the open double partition reactor (RODP), which may be used in the construction of a ne...

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Bibliographic Details
Published inDesalination Vol. 189; no. 1; pp. 278 - 286
Main Authors Cézac, P., Manzola, A.S., Ben Amor, M.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.03.2006
Elsevier
Subjects
Activity
Applied sciences
Chemical engineering
Chemical thermodynamics
Chemistry
Electrolytes
Exact sciences and technology
General and physical chemistry
General. Theory
Geothermal waters
Modelling
Pollution
Precipitation
Reactors
Thermodynamic
Tunisia
Electrolytes
Activity
Precipitation
Modelling
Geothermal waters
Thermodynamic
Design
Electrolytes; Thermodynamic; Activity; Precipitation
Activity coefficient
Group contribution method
Modelling; Geothermal waters
Thermodynamic properties
Continuous phase
Reactor
Non linear system
Modeling
Optimization
Electrostatic force
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Summary:The geothermal waters exploitation infrastructures in Chott El Fejjej (Tunisia) are constantly being damaged by a scaling phenomenon. Experimental work has been carried out on a new kind of decarbonation reactor: the open double partition reactor (RODP), which may be used in the construction of a new plant at the site of Chott El Fejjej. The objective of this paper is to propose a model, which may contribute to the design and optimisation of the process of decarbonation. Our model is based on the thermodynamic laws, which describe the physical and chemical phenomena occurring in an electrolytic three-phase continuous reactor. However, due to electrostatic forces, these kinds of systems cannot be successfully described by the concept of an ideal solution. Indeed, the calculation of activity coefficients is required. So, by using a group contribution method to calculate the activity coefficient, the model remains user-friendly. The non-linear system obtained is solved by using Newton–Raphson’s method. Confrontation with experimental results shows that the model correctly describes the ODP reactor.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0011-9164
1873-4464
DOI:10.1016/j.desal.2005.07.013