Evaluation of silicone fluids and resins as CO2 thickeners for enhanced oil recovery using a computational and experimental approach

Gallo Jiménez, Gonzalo Augusto; Erdmann, Eleonora; Cavasotto, Claudio N.

artículo de publicación periódica.page.titleprefix
Evaluation of silicone fluids and resins as CO2 thickeners for enhanced oil recovery using a computational and experimental approach

dc.contributor.author	Gallo Jiménez, Gonzalo Augusto
dc.contributor.author	Erdmann, Eleonora
dc.contributor.author	Cavasotto, Claudio N.
dc.date.accessioned	2022-06-01T16:01:46Z
dc.date.available	2022-06-01T16:01:46Z
dc.date.issued	2021-09
dc.description.abstract	"CO2 thickeners have the potential to be a game changer for enhanced oil recovery, carbon capture utilization and storage, and hydraulic fracturing. Thickener design is challenging due to polymers’ low solubility in supercritical CO2(scCO2) and the difficulty of substantially increasing the viscosity of CO2. In this contribution, we present a framework to design CO2 soluble thickeners, combining calculations using a quantum mechanical solvation model with direct laboratory viscosity testing. The conductor-like polarizable continuum model for solvation free-energy calculations was used to determine functional silicone and silsesquioxane solubilities in scCO2. This method allowed for a fast and efficient identification of CO2-soluble compounds, revealing silsesquioxanes as more CO2-philic than linear polydimethylsiloxane (PDMS), the most efficient non-fluorinated thickener know to date. The rolling ball apparatus was used to measure the viscosity of scCO2 with both PDMS and silicone resins with added silica nanoparticles. Methyl silicone resins were found to be stable and fast to disperse in scCO2 while having a significant thickening effect. They have a larger effect on the solution viscosity than higher-molecular-weight PDMS and are able to thicken CO2 even at high temperatures. Silicone resins are thus shown to be promising scCO2 thickeners, exhibiting enhanced solubility and good rheological properties, while also having a moderate cost and being easily commercially attainable."	en
dc.identifier.issn	2470-1343
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/3904
dc.language.iso	en	en
dc.relation	info:eu-repo/semantics/reference/doi/10.1021/acsomega.1c03660
dc.rights	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	NANOPARTICULAS	es
dc.subject	POLIMEROS ORGANICOS	es
dc.subject	SILICONAS	es
dc.subject	VISCOSIDAD	es
dc.subject	SOLUBILIDAD	es
dc.title	Evaluation of silicone fluids and resins as CO2 thickeners for enhanced oil recovery using a computational and experimental approach	en
dc.type	Artículos de Publicaciones Periódicas	es
dc.type	info:eu-repo/semantics/publishedVersion
dspace.entity.type	Artículo de Publicación Periódica
itba.description.filiation	Fil: Gallo Jiménez, Gonzalo Augusto. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Erdmann, Eleonora. Universidad Nacional de Salta; Argentina.
itba.description.filiation	Fil: Erdmann, Eleonora. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
itba.description.filiation	Fil: Cavasotto, Claudio N. Universidad Austral; Argentina.
itba.description.filiation	Fil: Cavasotto, Claudio N. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.