PRODUÇÃO DE NANOEMULSÕES O/A CONTENDO ADITIVOS UTILIZADOS NA INDUSTRIA DE PETRÓLEO: composição e propriedades
Mots-clés :
Nanoemulsões. Indústria de petróleo. Aditivos. Tensoativos.Résumé
Neste trabalho foi realizado um estudo de diferentes formulações de nanoemulsões com óleo de laranja/água contendo aditivos utilizados na indústria de petróleo na inibição de incrustação inorgânica (aditivo B) e na estabilização de asfaltenos (aditivo C). Como tensoativo, foi utilizado uma mistura de tensoativos (HLB=11) poliméricos à base de éter laurílico da linha Ultrol L com diferentes teores de óxido de etileno (EO). As concentrações de aditivo B e C foram de 0,2% v/v e 0,5% v/v, respectivamente. Foram estudados 9 sistemas variando a concentração de tensoativos (9, 12 e 15% v/v) contendo aditivo B e de fase oleosa total, óleo de laranja e aditivo C, (10, 15 e 20% v/v). As nanoemulsões foram preparadas pelo método de alta energia, utilizando um processador ultrassônico. As propriedades das nanoemulsões, quais sejam distribuição de tamanho e estabilidade, foram observadas em analisador de partículas Zetasizer Nano ZS. A maioria dos sistemas estudados para a preparação das nanoemulsões puderam formular os dois aditivos com certa estabilidade. Portanto, de uma forma geral, a viabilidade da produção de nanoemulsões contendo aditivos químicos usados na indústria de petróleo (aditivo B e aditivo C) foi comprovada neste trabalho, encontrando-se uma formulação ótima para aplicação de uma nanoemulsão com pequenos tamanhos de gotas e bom perfil de estabilidade. Essa formulação foi aquela que apresentou 12% v/v de tensoativos e 15%v/v de fase oleosa, ou seja, os níveis médios estudados neste trabalho.
Palavras-chave: Nanoemulsões. Indústria de petróleo. Aditivos. Tensoativos.
PRODUCTION OF O/W NANOEMULSIONS CONTAINING ADDITIVES USED IN THE PETROLEUM INDUSTRY: composition and properties
Abstract
In this work, we studied different nanoemulsions formulation with orange oil and water containing additives used in petroleum industry to inhibit inorganic scale (additive B) and to stabilize asphaltenes (additive C). As surfactant, we used a mixture of surfactants (HLB=11) based on ethoxylated lauryl ether (Ultrol L line) with different ethylene oxide content (EO). Additive B and additive C were prepared in 0.2%v and 0.5%v of concentration, respectively. We studied 9 systems varying surfactant concentrations (9, 12 and 15% v) containing additive B and total oily phase (orange oil and additive C) in 10, 15 and 20%v. The nanoemulsions were prepared by high energy method, using a ultrasonic processor. The nanoemulsions’ properties, size distribution and stability, were observed in particle analyser Zetasizer Nano ZS. The majority of systems of prepared nanoemulsions could formulate the two additives with stability. Therefore, in general, the viability of nanomeulsion production containing chemical additives used in petroleum industry (additive B and additive C) was proven in this work, being an optimum formulation for application of a nanoemulsion with small droplet sizes and good stability profile. This formulation was the one that presented 12% v / v of surfactants and 15% v / v of oil phase, that is, the average levels studied in this work.
Keywords: Nanoemulsions. Petroleum industry. Additives. Surfactants.
PRODUCCIÓN DE NANOEMULSIONES ACEITE/AGUA CONTIENE ADITIVOS UTILIZADOS EN LA INDUSTRIA DE PETRÓLEO: composición y propiedad
Resumen
En este trabajo se estudiaron diferentes formulaciones de nanoemulsiones con aceite de naranja / agua conteniendo aditivos utilizados en la industria del petróleo para inhibir incrustación inorgánica (aditivo B) y estabilizar asfaltenos (aditivo C). Como tensoactivo, se utilizó una mezcla de tensoactivos (HLB = 11) poliméricos a base de éter laurílico de la línea Ultrol L con diferentes niveles de óxido de etileno (EO). Las concentraciones de aditivo B y C fueron 0,2% v/v y 0,5% v/v, respectivamente. Se estudiaron 9 sistemas variando la concentración de tensoactivos (9, 12 y 15% v/v) que contienen aditivo B y de fase oleosa total, aceite de naranja y aditivo C, (10, 15 y 20% v/v). Las nanoemulsiones fueron preparadas por el método de alta energía, mediante procesador ultrasónico. Las propiedades de las nanoemulsiones, que son distribución de tamaño y estabilidad, se observaron en el analizador de partículas Zetasizer Nano ZS. La mayoría de los sistemas estudiados para la preparación de las nanoemulsiones pudieron incorporar los dos aditivos con cierta estabilidad. Luego, de forma general, la viabilidad de la producción de nanoemulsiones que contenían aditivos químicos utilizados en la industria del petróleo (aditivo B y aditivo C) fue comprobada, encontrándose una formulación óptima para la aplicación de una nanoemulsión con gotas pequeñas y, apropiado perfil de estabilidad. Esta formulación fue aquella con 12% v/v de tensioactivos y 15% v/v de fase oleosa, es decir, los niveles medios estudiados en este trabajo.
Palabras clave: Nanoemulsiones. Industria del petróleo. Aditivos. Tensoactivo.
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