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- W2187984251 abstract "Foi avaliada a extracao tipo soxhlet com diclorometano da materia orgânica soluvel –MOS– a separacao de asfaltenos mediante refluxo usando n-hexano como agente precipitante e a limpeza de asfaltenos para duas amostras de arenito: arenito asfaltico, tipo tar sand e arenito impregnado de oleo degradado das Bacias brasileiras do Parana e Reconcavo, respectivamente. Os resultados indicaram a presenca de heterogeneidades no conteudo de materia orgânica soluvel e de asfaltenos para as duas amostras. A limpeza dos asfaltenos no final do processo foi avaliada usando microfotografias indicando que a metodologia baseada em sistema de extracao soxhlet e eficiente. ________________________________________ It was evaluated the soxhlet extraction with dichloromethane for soluble organic matter -SOM- for the separation of asphaltenes by reflux using n-hexane as the precipitating agent. This procedure was followed for the cleaning of asphaltenes of two sandstone samples: asfaltic sandstone, type tar sand and sandstone impregnated with the degraded oil from Brazilian Parana and Reconcavo basins. The results indicated the presence of heterogeneities on the content of soluble organic matter and asphaltenes for both samples. The cleaning of the asphaltenes in the end of the process was evaluated using microphotographs demonstrating that the process is efficient, based on the soxhlet extraction system." @default.
- W2187984251 created "2016-06-24" @default.
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- W2187984251 date "2012-05-30" @default.
- W2187984251 modified "2023-10-06" @default.
- W2187984251 title "Geoquímica do petróleo: obtenção de asfaltenos a partir de matéria orgânica solúvel - MOS" @default.
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