Patent ID: 8785707
Filing Date: 2014-07-22
Classification: B01J,C07C,C10G

Abstract:
1. A process for oligomerization of an olefinic feedstock that contains hydrocarbon molecules having 2 to 12 carbon atoms per molecule comprising conducting said oligomerization in the presence of a catalyst that comprises at least one binder and at least one crystallized material with hierarchized and organized porosity in the ranges of microporosity and mesoporosity, whereby said crystallized material comprises at least two elementary spherical particles, each of said particles comprising a mesostructured silicon-oxide-based matrix having a uniform diameter of mesopores of between 1.5 and 30 nm and having microporous and crystallized walls with a thickness of between 1 and 50 nm, whereby said elementary spherical particles have a maximum diameter of 200 microns, wherein said crystallized walls of said matrix consist exclusively of zeolitic entities, and wherein the at least one crystallized material with hierarchized and organized porosity of the catalyst is obtained by process (I), (II), or (III) wherein process (I), (II), or (III) comprise the following: Process (I): preparing a clear solution comprising at east one structuring agent, at least one silicic precursor, and at least one precursor of least one element selected from the group consisting of aluminum, iron, boron, germanium and titanium, wherein said clear solution is aqueous or aquo-organic, wherein the structuring agent is basic or the reaction medium is basified by the addition of alkaline metal hydroxide, and wherein said clear solution is prepared under hydrothermal conditions and under an autogenous pressure at a temperature of from ambient temperature to 200° C., mixing at least one surfactant and said clear solution to form a solution wherein the ratio of the volumes of inorganic and organic materials V atomizing said solution by aerosol generation wherein said atomization forms spherical droplets, drying of said droplets to obtain particles, autoclaving of said particles, drying said particles, and eliminating said structuring agent and said surfactant and obtaining a crystallized material with a hierarchized and organized microporosity and mesoporosity; Process (II): preparing a reaction mixture comprising at least one structuring agent, at least one silicic precursor, and at least one precursor of at least one element selected from the group consisting of aluminum, iron, boron, germanium and titanium, wherein said reaction mixture is aqueous or aquo-organic, wherein the structuring agent is basic or the reaction medium is basified by the addition of alkaline metal hydroxide, and wherein said reaction mixture is prepared under hydrothermal conditions and under an autogenous pressure at a temperature of from ambient temperature to 200° C., to obtain a colloidal solution comprising zeolitic nanocrystals with a maximum nanometric size of 60 nm and wherein said nanocrystals are dispersed, solubilizing at least one surfactant and said colloidal solution into a second solution wherein the ratio of the volumes of inorganic and organic materials V atomizing said second solution by aerosol generation wherein said atomization forms spherical droplets, drying said droplets, and eliminating said structuring agent and said surfactant and obtaining a crystallized material with a hierarchized and organized microporosity and mesoporosity; and Process (III): dispersing zeolitic crystals in solution to obtain a colloidal solution of zeolitic nanocrystals with a maximum nanometric size of 60 nm, mixing in solution at least one surfactant, said colloidal solution, and at least one clear solution comprising precursor elements of zeolitic entities wherein said precursor elements of zeolitic entities are at least one structuring agent, at least one silicic precursor, and at least one precursor of at least one element selected from the group consisting of aluminum, iron, boron, germanium, and titanium to obtain a second solution, wherein the ratio of the volumes of inorganic and organic materials V atomizing said second solution by aerosol generation wherein said atomization forms spherical droplets, drying said droplets to obtain particles, autoclaving said particles in the presence of a solvent wherein the volume of the solvent is from 0.01% to 20% relative to the volume of the selected autoclave at a temperature from 50° C. to 200° C. for 1 to 196 hours, drying said particles in an oven at a temperature of 50° C. to 150° C., eliminating said structuring agent and said surfactant and obtaining a crystallized material with a hierarchized and organized microporosity and mesoporosity, and mixing said crystallized material with hierarchized and organized porosity with at least one element of group VIB and/or group VIII of the Periodic Table.