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8717091 
Meetings & Symposia 
Characterization and studies of kinetic and severity in the visbreaking of heavy crude oils: Castilla, Rubiales and Nare-Jazmin 
Carrillo, JA; Corredor, LM; Valero, ML 
2004 
49 
496-499 
English 
Visbreaking appears like an alternative for the conversion or transportation of heavy crudes. The effect of the temperature and the reaction time over the viscosity reduction, the visbreaking bottoms stability, the conversion, and the coke formation was studied. There were some parameters related with the stability, which allow to predict the tendency of a crude oil to form coke. Castilla crude oil presented the highest content of insolubles in n-C7 and in cyclohexane, and was followed by Rubiales and Nare-jazmin crudes. The temperature presented a highest influence over the viscosity reduction.