The intrinsic kinetics of hydrocatalytic conversion of the asphaltenic fraction from a Maya residue is reported. The kinetic study was carried out at high temperatures (375−415 °C) and hydrogen pressure, 12.5 MPa, in a perfectly mixed reactor in continuos operation. Asphaltenic fraction concentration data fit half-order removal kinetics, the activation energy being 41.5 kcal/mol. The relationships existing between the deasphalting and important reactions which occur in the hydroprocessing (fraction over 343 °C conversion, desulfuration, denitrogenation, and demetalation) were studied.
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Callejas et al. (2000) studied this question.
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