Process for hydroconverting of a heavy hydrocarbonaceous feedstock
First Claim
1. A process for hydroconverting a heavy hydrocarbonaceous feedstock comprising a catalyst to produce lower boiling hydrocarbon products, which process comprises the following steps:
- (a) Activation of the feedstock by adding modifiers and stabilizers;
(b) Preparation of a catalyst complex comprising an emulsion of the pre-activated heavy hydrocarbons of step a), water and catalytic compounds;
(c) Hydrogenation of the remaining activated heavy hydrocarbons in the presence of hydrogen gas and the emulsion of catalytic complex of step (b);
(d) Fractionation of the products of step (c) as liquid-gas streams by means of atmospheric and/or vacuum distillation;
(e) Returning the residues of the distillation process to the process of step (a) after separating the solid particle content;
(f) Separation of catalyst elements from the solid particles, wherein said catalyst elements are recycled to a preliminary catalyst complex preparation unit.
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Abstract
A Process for hydroconverting of a heavy hydrocarbonaceous feedstock comprising a catalyst to produce lower boiling hydrocarbon products. The method can be used for the high- boiling point residues of oil refining (asphaltene, the residues of vacuum and under pressure distillation of oil, and the useless and heavy materials of thermo catalytic processes), heavy oil, natural bitumen, and bitumen-containing sands. It can also be used in oil refinery industries for the production of gas, gasoline fractions, distillation gas oil, concentrate of ash containing metals and chemical fertilizers.
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Citations
27 Claims
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1. A process for hydroconverting a heavy hydrocarbonaceous feedstock comprising a catalyst to produce lower boiling hydrocarbon products, which process comprises the following steps:
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(a) Activation of the feedstock by adding modifiers and stabilizers; (b) Preparation of a catalyst complex comprising an emulsion of the pre-activated heavy hydrocarbons of step a), water and catalytic compounds; (c) Hydrogenation of the remaining activated heavy hydrocarbons in the presence of hydrogen gas and the emulsion of catalytic complex of step (b); (d) Fractionation of the products of step (c) as liquid-gas streams by means of atmospheric and/or vacuum distillation; (e) Returning the residues of the distillation process to the process of step (a) after separating the solid particle content; (f) Separation of catalyst elements from the solid particles, wherein said catalyst elements are recycled to a preliminary catalyst complex preparation unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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18. The process according to claime 14, wherein the transition metals is Mo or Ni.
Specification