Reducción de la acidez de un crudo de petróleo con una solución alcohólica de líquido iónico 2-metilimidazol
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Universidad Industrial de Santander
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El objetivo de la investigación fue la reducción de la acidez de un crudo colombiano (Número Total de Ácidos -TAN) de 4,9 mg KOH/ g Crudo) utilizando un líquido iónico formado in-situ con solución etanólica de 2 metilimidazol para extraer los compuestos ácidos. Se realizó un diseño de experimentos 2[3] con un punto medio y por triplicado, cuyas variables independientes fueron: la relación crudo: reactivos, la relación entre reactivos (2-metilimidazol: etanol) y el tiempo; y la variable dependiente fue el porcentaje de reducción de la acidez.
Las mejores condiciones para la mayor extracción de ácidos fueron: una relación entre crudo: reactivos de (1:0,2 p: p), una relación 2-metilimidazol: Etanol al (20% peso/volumen), y un tiempo de agitación de 3 minutos. El máximo porcentaje de remoción de la acidez fue del 83%. El 2-metilimidazol demostró ser una base orgánica alternativa para la reducción de la mezcla ácida en el petróleo, sustituyendo a las bases inorgánicas comúnmente utilizadas que generan problemas como emulsiones y pérdidas de petróleo. El etanol fue un excelente solvente, debido a que la mezcla ácida fue soluble en él y no se perdió crudo en el proceso.
The objective of the investigation was the reduction of the acidity of a Colombian crude (Total Acid Number (TAN) of 4,9 mg KOH/ g crude) utilizing an ionic liquid formed in-situ with ethanolic solution 2 methylimidazole to extract the acid compounds. Experimental designs were realized 2[3] with a point and a half and triplicated whose independent variables were: relationship crude: reactives, in between reactives (2 methylimidazole: Ethanol) and the period; the dependent variable was the percentage of the reduction of acidity. The best conditions for the majority acid extraction were: a relationship between crude: reactive (1: 0,2 w: w), a relation 2-methylimidazole: ethanol at (20% w/v), and an agitation period of 3 minutes. The maximum acidity removal percentage was 83%. The 2-methylimidazole demonstrated to be an alternative organic base for the reduction of the acidity mixture of oil, substituting the inorganic bases commonly utilized that generated problems like emulsions and loss of oil. The ethanol was an excellent solvent due to the acid mixture was soluble in it and there was no loss of oil in the process.
The objective of the investigation was the reduction of the acidity of a Colombian crude (Total Acid Number (TAN) of 4,9 mg KOH/ g crude) utilizing an ionic liquid formed in-situ with ethanolic solution 2 methylimidazole to extract the acid compounds. Experimental designs were realized 2[3] with a point and a half and triplicated whose independent variables were: relationship crude: reactives, in between reactives (2 methylimidazole: Ethanol) and the period; the dependent variable was the percentage of the reduction of acidity. The best conditions for the majority acid extraction were: a relationship between crude: reactive (1: 0,2 w: w), a relation 2-methylimidazole: ethanol at (20% w/v), and an agitation period of 3 minutes. The maximum acidity removal percentage was 83%. The 2-methylimidazole demonstrated to be an alternative organic base for the reduction of the acidity mixture of oil, substituting the inorganic bases commonly utilized that generated problems like emulsions and loss of oil. The ethanol was an excellent solvent due to the acid mixture was soluble in it and there was no loss of oil in the process.
Keywords
Crude, Naphtenic Acids, TAN, Crudo, Ácidos Nafténicos, TAN