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Desarrollo de nanomateriales para la liberación controlada de surfactantes en recobro mejorado de petróleo.
dc.rights.license | Atribución-NoComercial 4.0 Internacional |
dc.contributor.advisor | Cortés Correa, Farid Bernard |
dc.contributor.advisor | Franco Ariza, Camilo Andrés |
dc.contributor.author | Roldán Vargas, Leidy Johanna |
dc.date.accessioned | 2020-03-17T18:38:42Z |
dc.date.available | 2020-03-17T18:38:42Z |
dc.date.issued | 2019-10-16 |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/76101 |
dc.description.abstract | Surfactant flooding is a common procedure for enhancing oil recovery. However, this chemical-based oil recovery method is affected by the large quantity of chemical loss inside the reservoir. This work proposes the use of mesoporous silica nanoparticles (MSNPs) widely studied in nanomedicine as carriers for active compounds to controlled delivery and release of surfactant for enhanced oil recovery. A cationic surfactant Hexadecyltrimethylammonium bromide (CTAB) was loaded onto silica nanoparticles synthesized by the sol gel method modified using Pluronic 127 as sizing control and CTAB as sacrificial pore generator. Several conditions including the amount of surfactant, reaction time and sacrificial agent removal were studied. Morphology of the synthetized nanoparticles was studied by transmission electronic microscopy (TEM), Brunauer Emmet-Teller (BET) was used to measure the surface area of nanoparticles, Fourier transform infrared (FTIR) spectroscopy was applied to porous loading. Loading percentage and release was measured by desorption kinetics and dynamic interfacial tension measurements (DIT). Otherwise, 83 % of loaded surfactant onto MSNPs was released in aqueous medium. The DIT results showed a notable sustained surfactant release from MSNPs. Comparing to conventional surfactant flooding, this approach could not only reduce the adsorption of surfactants on rock surface, but also avoiding unstable surfactant slug injection. |
dc.description.abstract | La inyección de surfactantes es un método común en el recobro mejorado de petróleo. Sin embargo, su aplicación se ve limitada debido a las grandes cantidades de químicos que se adsorben en el yacimiento. El propósito de este trabajo investigativo es evaluar el uso de nanopartículas de sílice con mesoporosidad ampliamente estudiadas en nanomedicina como agentes de acarreos de diferentes compuestos activos en el transporte y liberación controlada de surfactantes en recobro químico mejorado de petróleo. Se sintetizaron nanopartículas de sílice mediante el método de sol gel modificado usando bromuro de hexadeciltrimetilamonio (CTAB, surfactante catiónico) y Pluronic F127 (surfactante aniónico). Diferentes factores fueron considerados, entre estos la relación de los componentes de síntesis y el método de remoción de la plantilla orgánica. La morfología de las nanopartículas de síntesis fue estudiada mediante microscopía electrónica de transmisión (TEM), área superficial BET y espectroscopía infrarroja de Fourier. La construcción de las isotermas de sorción se llevó a cabo mediante termogravimetría. Los resultados mostraron una capacidad máxima de adsorción de 756.99 mg/g vs 504.29 mg/g de su contraparte no porosa. Por su parte, los experimentos de desorción mostraron que las nanopartículas porosas tenían un porcentaje de desorción superior al 80%. No se observó una desorción apreciable del surfactante anclado a los materiales no porosos. La tasa de liberación del tensoactivo se evaluó mediante cinéticas de desorción y tensión interfacial dinámica en un sistema agua/diésel mostrando un porcentaje de liberación sostenido en el tiempo. Comparado con la técnica convencional de inyección de surfactantes, esta aproximación podría no solo reducir la adsorción del surfactante sobre la superficie de la roca, sino que también extender el radio de penetración del tratamiento. |
dc.format.extent | 67 |
dc.format.mimetype | application/pdf |
dc.language.iso | spa |
dc.rights | Derechos reservados - Universidad Nacional de Colombia |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ |
dc.subject.ddc | 660 - Ingeniería química |
dc.title | Desarrollo de nanomateriales para la liberación controlada de surfactantes en recobro mejorado de petróleo. |
dc.type | Otro |
dc.rights.spa | Acceso abierto |
dc.description.project | Plan nacional para el potenciamiento de la tecnología CEOR con gas mejorado químicamente” contrato 273-2017 |
dc.description.additional | Magister en Ingeniería química |
dc.type.driver | info:eu-repo/semantics/other |
dc.type.version | info:eu-repo/semantics/acceptedVersion |
dc.contributor.corporatename | Universidad Nacional de Colombia - Sede Medellín |
dc.contributor.researchgroup | Fenómenos de Superficie - Michael Polanyi |
dc.description.degreelevel | Maestría |
dc.publisher.department | Departamento de Procesos y Energía |
dc.publisher.branch | Universidad Nacional de Colombia - Sede Medellín |
dc.relation.references | Magister en Ingeniería química |
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dc.relation.references | Betancur, S.a., et al., Development of Composite Materials Based on the Interaction between Nanoparticles and Surfactants for Application in Chemical Enhanced Oil Recovery. Industrial & Engineering Chemistry Research, 2018. 57(37): p. 12367-12377 |
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dc.rights.accessrights | info:eu-repo/semantics/openAccess |
dc.subject.proposal | Adsorción |
dc.subject.proposal | Adsorption |
dc.subject.proposal | Desorción |
dc.subject.proposal | Desorption |
dc.subject.proposal | recobro químico mejorado de petróleo |
dc.subject.proposal | Enhanced oil recovery (EOR) |
dc.subject.proposal | Nanopartículas |
dc.subject.proposal | Well-ordered mesoporous nanoparticles |
dc.subject.proposal | Inyección de surfactantes |
dc.subject.proposal | Surfactant flooding |
dc.type.coar | http://purl.org/coar/resource_type/c_1843 |
dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa |
dc.type.content | Text |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 |
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