Abstract: The invention, in one aspect, relates to a particular method for the preparation of a hydrocracking catalyst, using a high iron content bauxite as a basis. This bauxite is ground and screened to a specific size and mixed with up to three types of additives: a promoter additive of the P, Mo, Co, Ni, W type, optionally a hardener additive of the phosphoric acid type, and optionally a lubricant and pore-generating additive of the polyvinyl-alcohol, polyethylene-glycol, starch type. The additives are blended with the bauxite before, or during the extrusion of the blend for the formation of pellets. The pellets are subjected to drying and calcination under controlled conditions for their activation.The obtained catalyst offers a good mechanical strength, a high content in macropores and a high activity, specifically for the hydrocracking of heavy Venezuelan crudes or residues.

Abstract: The invention, in one aspect, relates to a particular method for the preparation of a hydrocracking catalyst, using a high iron content bauxite as a basis. This bauxite is ground and screened to a specific size and mixed with up to three types of additives: a promoter additive of the P, Mo, Co, Ni, W type, optionally a hardener additive of the phosphoric acid type, and optionally a lubricant and pore-generating additive of the polyvinyl-alcohol, polyethylene-glycol, starch type. The additives are blended with the bauxite before, or during the extrusion of the blend for the formation of pellets. The pellets are subjected to drying and calcination under controlled conditions for their activation.The obtained catalyst offers a good mechanical strength, a high content in macropores and a high activity, specifically for the hydrocracking of heavy Venezuelan crudes or residues.

Abstract: A process for the conversion of heavy hydrocarbon feedstocks which are characterized by high molecular weight, low reactivity and high metal contents comprising feeding the feedstock to a hydrodemetallization zone where the feedstock is contacted with hydrogen and a catalyst capable of demetallizing organometallic complexes of high molecular weight and cracking resistance, thereafter removing the effluent from the demetallization zone and feeding same to the thermal cracking zone where the effluent is contacted with hydrogen and thereafter feeding the product from the cracking zone to a hydrocarbon conversion zone where the product is contacted with hydrogen and a catalyst capable of cracking molecules of high cracking resistance.

Abstract: The invention relates to a particular method for the preparation of a hydrocracking catalyst, using a high iron content bauxite as a basis. This bauxite is ground and screened to a specific size and mixed with three types of additives: a promoter additive of the P, Mo, Co, Ni, W type. A hardener additive of the phosphoric acid type, ammonium phosphate. And a lubricant and pore-generating additive of the polyvinyl alcohol, polyethylene-glycol, starch type. The particularity consists in that the three additives are added simultaneously during the extrusion of the sample. That way, a particular surface composition is obtained which allows for the activity of the catalyst. Extruded products are obtained in sizes of 1/8, 1/16, and 1/32" and submitted to drying and calcination programs for their activation.The obtained catalyst offers a good mechanical strength, a high content in macropores and a high activity, specifically for the hydrocracking of heavy Venezuelan crudes or residues.