Imperial College London
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Prof. J. P. Martin Trusler

Faculty of Engineering, Department of Chemical Engineering

Professor of Thermophysics
 
 
 
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Contact

 

+44 (0)20 7594 5592m.trusler Website

 
 
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Assistant

 

Miss Jessica Baldock +44 (0)20 7594 5699

 
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Location

 

409ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Mutailipu:2021:10.1016/j.ces.2020.116434,
author = {Mutailipu, M and Liu, Y and Song, Y and Martin, Trusler JP},
doi = {10.1016/j.ces.2020.116434},
journal = {Chemical Engineering Science},
pages = {1--10},
title = {The pH of CO2–saturated aqueous KCl solutions at temperatures between 298 K and 423 K at pressures up to 13.5 MPa},
url = {http://dx.doi.org/10.1016/j.ces.2020.116434},
volume = {234},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The pH of CO2-saturated brines is of importance in geological carbon storage utilizing saline aquifers as it is a key variable controlling fluid-mineral chemical reactions that affect CO2 storage capacity and security. In this paper, we report experimental measurements of the pH of CO2-saturated aqueous KCl solutions carried out using high-pressure glass and ZrO2 pH electrodes, coupled with a Ag/AgCl reference electrode, at a temperatures from (298 to 423 K) and at pressure between (0.2 and 13.5) MPa. The results are in good agreement with values predicted using the Pitzer model with the McInnes convention as implemented in the PHREEQC geochemical simulator software. The pH of CO2-saturated KCl solutions decreases with increasing partial pressure of CO2 and increases with increasing temperature. Increasing the molality of the KCl solutions tends to lower the pH but not as rapidly as is the case the NaCl.
AU  - Mutailipu,M
AU  - Liu,Y
AU  - Song,Y
AU  - Martin,Trusler JP
DO  - 10.1016/j.ces.2020.116434
EP  - 10
PY  - 2021///
SN  - 0009-2509
SP  - 1
TI  - The pH of CO2–saturated aqueous KCl solutions at temperatures between 298 K and 423 K at pressures up to 13.5 MPa
T2  - Chemical Engineering Science
UR  - http://dx.doi.org/10.1016/j.ces.2020.116434
UR  - https://reader.elsevier.com/reader/sd/pii/S0009250920309660?token=F7FBB81C54CA59CB28F50146B61A289DDA9B4FB0B6EAA3457A8D26B79A89B1F734F211AA3F584AA4679467B7E9B80F78
UR  - http://hdl.handle.net/10044/1/85783
VL  - 234
ER  -
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