Modeling of scale formation and corrosion from geothermal water

G. Pátzay, G. Stáhl, F. H. Kármán, E. Kálmán

Research output: Contribution to journalReview article

32 Citations (Scopus)

Abstract

Simulation of particle size evolution and of scale formation and corrosion along the flow path is of the greatest importance for data interpretation as well as for engineering applications (eg minimisation of the scale formation) in geothermal and hot water plants. An equilibrium simulation algorithm and a computer program for calcite scale formation in a CaCO3 - H2O-CO2 system has been developed using the Davies and Pitzer activity calculation methods. An equilibrium simulation algorithm and a computer program for CaCO3, CaSO4, BaSO4, SrSO4 scale formation in a Na-K-Mg-Ca-H-Ba-Sr-Cl-Br-SO4-OH-HCO3-CO 3-CO2-H2O system are also constructed using the Davies and the Pitzer activity calculation methods. The program determines the Langelier and Ryznar saturation indexes too, which are useful for the description of the scaling and corrosion characteristics in a solution. An equilibrium simulation algorithm and a computer program for the determination of the bubble point and of the partial pressure profiles of the gases CO2, CH4 and N2 between the bubble point depth and the well head in a geothermal well are constructed.

Original languageEnglish
Pages (from-to)137-147
Number of pages11
JournalElectrochimica Acta
Volume43
Issue number1-2
DOIs
Publication statusPublished - Jan 1 1998

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Keywords

  • Activities
  • Bubble point
  • Calcite
  • Corrosion
  • Dissolution
  • Equilibrium calculations
  • Langelier and Ryznar indexes
  • Modeling
  • Precipitation
  • Scale formation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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