초록 ▼

A new active stable catalyst for use in the removal of sulphur, nitrogen, contaminating metals, asphaltenes and Conradson carbon from heavy crudes and residues and, in particular, a method for the preparation of the catalyst and a process for the treatment of heavy crudes and residues with the catal

A new active stable catalyst for use in the removal of sulphur, nitrogen, contaminating metals, asphaltenes and Conradson carbon from heavy crudes and residues and, in particular, a method for the preparation of the catalyst and a process for the treatment of heavy crudes and residues with the catalyst. The catalyst comprises a hydrogenation component selected from Group VIB of the Periodic Table, a hydrogenation component selected from Group VIII of the Periodic Table and a phosphorus oxide component as active components all supported on an alumina carrier. The catalyst is made up of a dispersion of the above metals on the surface of the alumina carrier such that, when the catalyst is sulphided under specific conditions, catalytic activities such as hydrodesulphurization (HDS), hydrodenitrogenation (HDN) and hydrodemetallization (HDM) and the conversion of asphaltenes and Conradson carbon are improved.

대표청구항 ▼

A method for producing a catalyst for use in the hydrotreatment of heavy crudes and residues containing high levels of metals, sulphur, asphaltenes and Conradson carbon comprising the steps of: providing an alumina carrier; and impregnating said alumina carrier with (1) at least one hydrogenation co

A method for producing a catalyst for use in the hydrotreatment of heavy crudes and residues containing high levels of metals, sulphur, asphaltenes and Conradson carbon comprising the steps of: providing an alumina carrier; and impregnating said alumina carrier with (1) at least one hydrogenation component selected from the metallic elements of Group VIB of the Periodic Table so as to obtain a concentration of from about 5 to 30 weight percent of said element on said catalyst, (2) at least one metallic component selected from the metallic elements of Group VIII of the Periodic Table so as to obtain a concentration of from about 0.1 to 8 weight percent of said element on said catalyst and (3) a phosphorus oxide component so as to obtain a concentration of between 5 to 30 weight percent of phosphorus oxide on said catalyst wherein said phosphorus oxide is added in substantially stoichiometric quantities with respect to the metallic elements of Group VIB of the Periodic Table such that the ratio of phosphorus oxide to the oxide of the metallic elements of Group VIB on the surface of the catalyst is substantially unity. A catalyst for use in the hydrotreatment of heavy crudes and residues containing high levels of metals, sulphur, asphaltenes and Conradson carbon by impregnating an alumina carrier in an aqueous solution containing a component selected from the metallic elements of Group VIB of the Periodic Table, a component selected from the metallic elements of Group VIII of the Periodic Table and a phosphorus oxide component wherein said phosphorus oxide is added in substantially stoichiometric quantities with respect to the metallic elements of Group VIB of the Periodic Table such that the ratio of phosohorus oxide to the oxide of the metallic elements of Group VIB on the surface of the catalyst is substantially unity, said catalyst having a surface area of between 120 to 400 m2/g and a total pore volume of between 0.5 to 1.2 cc/g wherein between 60 and 100% of the total pore volume comprises pores having a diameter of between 60 to 300 Å.