Procedure to obtain a catalyst for the hydrodenitrogenation and hydrodesulfurization of middle and heavy oil fraction and the resulting product
A procedure to prepare a catalyst for the hydrodenitrogenation, hydrodesulfurization and hydrodemetallization of middle and heavy oil fractions. The catalyst uses a support consisting on an alumina matrix, having this matrix dispersed on its surface or in its mass, or in both, a metal oxide from gro...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
07.05.2002
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | A procedure to prepare a catalyst for the hydrodenitrogenation, hydrodesulfurization and hydrodemetallization of middle and heavy oil fractions. The catalyst uses a support consisting on an alumina matrix, having this matrix dispersed on its surface or in its mass, or in both, a metal oxide from group IVB of the periodic table. The support is prepared by co-precipitation technique, co-gelification or impregnation of the alumina with a Ti compound, soluble in an organic solvent, followed by drying at 100 to 200° C. and a calcination at 400 to 600° C., on oxidizing atmosphere. Impregnation of the support proceeds using an aqueous solution with spray-impregnation technique, after which, the support is left for aging for a period of 1 to 12 hrs. The impregnated support is then dried at a temperature of 110 to 200° C., for a period of 1 to 8 hrs. Finally, calcination takes place in oxidizing atmosphere at a temperature between 400 and 600° C. for a period of time of 2 to 6 hrs. |
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Bibliography: | Application Number: US19990345476 |