Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements
Recent studies report rapid corrosion of metals and carbonation of minerals in contact with H2O-saturated (or nearly saturated) CO2. One explanation for this behavior is that addition of small amounts of H2O to CO2 leads to significant ionization within the fluid (analogous to corrosion in aqueous f...
Main Author: | |
---|---|
Other Authors: | , , , |
Format: | Thesis |
Language: | unknown |
Published: |
Virginia Tech
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/10919/23283 |
id |
ftvirginiatec:oai:vtechworks.lib.vt.edu:10919/23283 |
---|---|
record_format |
openpolar |
spelling |
ftvirginiatec:oai:vtechworks.lib.vt.edu:10919/23283 2024-05-19T07:38:52+00:00 Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements Capobianco, Ryan Michael Geosciences Bodnar, Robert J. Gruszkiewicz, Kiroslaw S. Rimstidt, J. Donald 2013-06-28 ETD application/pdf http://hdl.handle.net/10919/23283 unknown Virginia Tech vt_gsexam:599 http://hdl.handle.net/10919/23283 In Copyright http://rightsstatements.org/vocab/InC/1.0/ carbon dioxide corrosion carbon capture and sequestration enhanced geothermal energy carbonic acid Thesis 2013 ftvirginiatec 2024-04-24T00:16:51Z Recent studies report rapid corrosion of metals and carbonation of minerals in contact with H2O-saturated (or nearly saturated) CO2. One explanation for this behavior is that addition of small amounts of H2O to CO2 leads to significant ionization within the fluid (analogous to corrosion in aqueous fluids). The extent of ionization in the bulk CO2 fluid was determined using a flow-through conductivity cell capable of analyzing very dilute solutions. Experiments were conducted from 25 to 200"C and 25 to 200 bar with H2O concentrations up to ~1650 ppmw. In all experiments, conductivities <10 nS/cm were obtained, indicating that the solution is essentially ion-free. This observation suggests that mobile ions are not present in the bulk CO2--rich fluid, and that the observed corrosion and carbonation reactions are not the result of ionization in the bulk fluid. Master of Science Thesis Carbonic acid VTechWorks (VirginiaTech) |
institution |
Open Polar |
collection |
VTechWorks (VirginiaTech) |
op_collection_id |
ftvirginiatec |
language |
unknown |
topic |
carbon dioxide corrosion carbon capture and sequestration enhanced geothermal energy carbonic acid |
spellingShingle |
carbon dioxide corrosion carbon capture and sequestration enhanced geothermal energy carbonic acid Capobianco, Ryan Michael Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements |
topic_facet |
carbon dioxide corrosion carbon capture and sequestration enhanced geothermal energy carbonic acid |
description |
Recent studies report rapid corrosion of metals and carbonation of minerals in contact with H2O-saturated (or nearly saturated) CO2. One explanation for this behavior is that addition of small amounts of H2O to CO2 leads to significant ionization within the fluid (analogous to corrosion in aqueous fluids). The extent of ionization in the bulk CO2 fluid was determined using a flow-through conductivity cell capable of analyzing very dilute solutions. Experiments were conducted from 25 to 200"C and 25 to 200 bar with H2O concentrations up to ~1650 ppmw. In all experiments, conductivities <10 nS/cm were obtained, indicating that the solution is essentially ion-free. This observation suggests that mobile ions are not present in the bulk CO2--rich fluid, and that the observed corrosion and carbonation reactions are not the result of ionization in the bulk fluid. Master of Science |
author2 |
Geosciences Bodnar, Robert J. Gruszkiewicz, Kiroslaw S. Rimstidt, J. Donald |
format |
Thesis |
author |
Capobianco, Ryan Michael |
author_facet |
Capobianco, Ryan Michael |
author_sort |
Capobianco, Ryan Michael |
title |
Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements |
title_short |
Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements |
title_full |
Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements |
title_fullStr |
Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements |
title_full_unstemmed |
Ionization in H2O -- bearing carbon dioxide determined by conductivity measurements |
title_sort |
ionization in h2o -- bearing carbon dioxide determined by conductivity measurements |
publisher |
Virginia Tech |
publishDate |
2013 |
url |
http://hdl.handle.net/10919/23283 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
vt_gsexam:599 http://hdl.handle.net/10919/23283 |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
_version_ |
1799478368233586688 |