SiO2 Biogenic Nanoparticles and Asphaltenes: Interactions and Their Consequences Investigated by QCR and GPC-ICP-HR-MS
| Autor: | Aurélie Le Beulze, Hervé Carrier, Nelson Acevedo, Jimmy Castillo, Vincent Piscitelli, Vicmary Vargas, Brice Bouyssiere |
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| Přispěvatelé: | TOTAL-Scientific and Technical Center Jean Féger (CSTJF), TOTAL FINA ELF, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Fluides Complexes et leurs Réservoirs (LFCR), TOTAL FINA ELF-Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Escuela de Química [Caracas, Venezuela], Facultad de Ciencias, Universidad Central de Venezuela, the Franco-Venezuelan Project RMR (Réseau Marcel Roche), Conseil Régional d'Aquitaine |
| Rok vydání: | 2021 |
| Předmět: |
Chemistry
Asphaltenes Aggregates General Chemical Engineering Asphaltenes Energy Engineering and Power Technology Nanoparticle Silica 02 engineering and technology 021001 nanoscience & nanotechnology Crude oil Fuel Technology Adsorption QCR 020401 chemical engineering Chemical engineering 13. Climate action Nanoparticles [CHIM]Chemical Sciences characterization 0204 chemical engineering 0210 nano-technology GPC-ICP-HR-MS Asphaltene |
| Zdroj: | Energy and Fuels Energy and Fuels, American Chemical Society, 2021, 35 (8), pp.6566-6575. ⟨10.1021/acs.energyfuels.0c04185⟩ |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | International audience; The processes in which crude oil asphaltene aggregates are adsorbed onto surfaces have been the subject of debate in recent years. Different thermodynamic, theoretical, and empirical models have been proposed to explain the interaction of asphaltenes with these surfaces and have found different behaviors. In this work, asphaltene adsorption onto SiO2 biogenic nanoparticles was experimentally monitored by studying it through two analytical techniques, namely, gel permeation chromatography coupled with inductively coupled plasma and high-resolution mass spectrometry (GPC-ICP-HR-MS) to follow the changes in aggregate size distributions in solutions and a quartz crystal resonator (QCR) sensor to detect and follow the destabilization with n-heptane, thus allowing the correlation of the different stabilities and deposition tendencies with the changes in aggregate size distributions. The results show that the nanoparticles interact in a preferential way with the larger asphaltene aggregates, and, once these large aggregates are adsorbed, there is no tendency for new large aggregate formation. Thus, a reduction in the deposition is observed. This indicates that, in this range of concentration, there is no equilibrium for aggregate formation and that these larger aggregates can be effectively removed. This finding opens new methodologies for study regarding asphaltene removal. |
| Databáze: | OpenAIRE |
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