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Title: Liquid-vapor partitioning of NaCl(aq) from concentrated brines at temperatures to 350{degrees}C

Abstract

Compositions of coexisting liquid and vapor phases have been determined at temperatures from 250 to 350{degree}C for brines containing NaCl and either HCl or NaOH by direct sampling of both phases from a static phase-equilibration apparatus. Thermodynamic partitioning constants for NaCl have been determined from the observed compositions of the coexisting phases combined with the known activity coefficients of NaCl(aq) in the liquid phase. An apparent dependence of the values of these partitioning constants on brine concentration is explained by considering the effect of decreasing pressure on the density of the vapor phase. Concentrations of HCl and NaCl in steam produced from various natural brines may be calculated as functions of temperature and brine composition based on these new results coupled with our previous determinations of the partitioning constants for HCl(aq). Application of these results to The Geysers will be discussed in terms of the composition of postulated brines which could be in equilibrium with observed steam compositions at various temperatures.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10126322
Report Number(s):
CONF-940120-1
ON: DE94007228
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: 19. workshop on geothermal reservoir engineering,Stanford, CA (United States),18-20 Jan 1994; Other Information: PBD: [1994]
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; SODIUM CHLORIDES; SEPARATION PROCESSES; WELL CASINGS; CORROSION; BRINES; GEYSERS GEOTHERMAL FIELD; Geothermal Legacy; 150903; 150902; 152001; CORROSION, SCALING, AND MATERIALS DEVELOPMENT; FLUID TRANSMISSION; PROPERTIES OF AQUEOUS SOLUTIONS

Citation Formats

Simonson, J.M., Palmer, D.A., and Carter, R.W. Liquid-vapor partitioning of NaCl(aq) from concentrated brines at temperatures to 350{degrees}C. United States: N. p., 1994. Web.
Simonson, J.M., Palmer, D.A., & Carter, R.W. Liquid-vapor partitioning of NaCl(aq) from concentrated brines at temperatures to 350{degrees}C. United States.
Simonson, J.M., Palmer, D.A., and Carter, R.W. Tue . "Liquid-vapor partitioning of NaCl(aq) from concentrated brines at temperatures to 350{degrees}C". United States. https://www.osti.gov/servlets/purl/10126322.
@article{osti_10126322,
title = {Liquid-vapor partitioning of NaCl(aq) from concentrated brines at temperatures to 350{degrees}C},
author = {Simonson, J.M. and Palmer, D.A. and Carter, R.W.},
abstractNote = {Compositions of coexisting liquid and vapor phases have been determined at temperatures from 250 to 350{degree}C for brines containing NaCl and either HCl or NaOH by direct sampling of both phases from a static phase-equilibration apparatus. Thermodynamic partitioning constants for NaCl have been determined from the observed compositions of the coexisting phases combined with the known activity coefficients of NaCl(aq) in the liquid phase. An apparent dependence of the values of these partitioning constants on brine concentration is explained by considering the effect of decreasing pressure on the density of the vapor phase. Concentrations of HCl and NaCl in steam produced from various natural brines may be calculated as functions of temperature and brine composition based on these new results coupled with our previous determinations of the partitioning constants for HCl(aq). Application of these results to The Geysers will be discussed in terms of the composition of postulated brines which could be in equilibrium with observed steam compositions at various temperatures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}

Conference:
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