A hydroprocessing catalyst composition that comprises a support material and a selenium component and which support material further includes at least one hydrogenation metal component. The hydroprocessing catalyst is prepared by incorporating a selenium component into a support particle and, after calcination thereof, incorporating at least one hydrogenation metal component into the selenium-containing support. The metal-incorporated, selenium-containing support is calcined to provide the hydroprocessing catalyst composition.

The invention provides a process for preparing a sulphided catalyst comprising the steps of (a) treating a catalyst carrier with one or more Group VIB metal components, one or more Group VIII metal components and a glycolic acid ethoxylate ether compound according to the formula (I) R—(CH.sub.2).sub.x—CH.sub.2—O—[—(CH.sub.2).sub.2—O—].sub.m—CH.sub.2—COOH (I) wherein R is a hydrocarbyl group containing of from 5 to 20 carbon atoms, x is in the range of from 1 to 15, and m is in the range of from 1 to 10, and wherein the molar ratio of compound (I) to the Group VIB and Group VIII metal content is at least 0.01:1 to 1:0.01; (b) drying the treated catalyst carrier at a temperature of at most 200° C. to form a dried impregnated carrier; and (c) sulphiding the dried impregnated carrier to obtain a sulphided catalyst.

The invention provides a process for preparing a sulphided catalyst comprising the steps of (a) treating a catalyst carrier with one or more Group VIB metal components, one or more Group VIII metal components and a glycolic acid ethoxylate ether compound according to the formula (I) R—(CH.sub.2).sub.x—CH.sub.2—O—[—(CH.sub.2).sub.2—O—].sub.m—CH.sub.2—COOH (I) wherein R is a hydrocarbyl group containing of from 5 to 20 carbon atoms, x is in the range of from 1 to 15, and m is in the range of from 1 to 10, and wherein the molar ratio of compound (I) to the Group VIB and Group VIII metal content is at least 0.01:1 to 1:0.01; (b) drying the treated catalyst carrier at a temperature of at most 200° C. to form a dried impregnated carrier; and (c) sulphiding the dried impregnated carrier to obtain a sulphided catalyst.

The invention relates to a process for adding an organic compound to a porous solid wherein the porous solid and the organic compound in the liquid state are brought together simultaneously, without physical contact between the solid and the organic compound in the liquid state, at a temperature below the boiling point of the organic compound and under pressure and time conditions such that a fraction of said organic compound is transferred gaseously to the porous solid.

The invention relates to a process for adding an organic compound to a porous solid wherein the porous solid and the organic compound in the liquid state are brought together simultaneously, without physical contact between the solid and the organic compound in the liquid state, at a temperature below the boiling point of the organic compound and under pressure and time conditions such that a fraction of said organic compound is transferred gaseously to the porous solid.

A process for rejuvenating an at least partially spent catalyst resulting from a hydrodesulfurization process of a sulfur-containing olefinic gasoline cut, where the at least partially spent catalyst result is from a fresh catalyst a metal from group VIII, a metal from group VIb, and an oxide support, where the process includes a) regenerating the at least partially spent catalyst in an oxygen-containing gas stream at a temperature between 350° C. and 550° C., b) the regenerated catalyst is brought into contact with an impregnation solution containing a compound containing a metal from group VIb, the molar ratio of the metal from group VIb added per metal from group VIb already present in the regenerated catalyst being between 0.15 and 2.5 mol/mol, c) a drying stage is carried out at a temperature of less than 200° C., and
the use of the rejuvenated catalyst in a hydrodesulfurization process.

A method for producing an alcohol by hydrating an olefin using a heteropolyacid catalyst is provided, in which an alcohol having high product purity can be stably produced over a long period of time. The method is for producing an alcohol by supplying a raw material mixture comprising water and an olefin having a carbon atom number of X, wherein X is an integer of 2 to 5, to a reactor and subjecting them to a hydration reaction in a gas phase using a solid acid catalyst on which a heteropolyacid or a salt thereof is supported to obtain a reaction product, wherein the content of an impurity olefin having a carbon atom number of Y, wherein Y is an integer of 2 to 6 and Y and X are different, contained in the raw material mixture is 700 mol ppm or less.

In accordance with one or more embodiments of the present disclosure, a continuous catalytic deasphalting process includes introducing a feed comprising crude oil and solvent to a first reactor to deasphalt the feed, producing polymerized asphaltene adsorbed to the catalyst and deasphalted oil; introducing solvent to a second reactor to regenerate catalyst in the second reactor while the deasphalting step is performed in the first reactor; introducing a wash solvent to the first reactor after deasphalting to remove the polymerized asphaltene, thereby regenerating the catalyst in the first reactor and producing a mixture comprising solvent and polymerized asphaltene; passing the mixture to a separator downstream of the reactor system to separate the wash solvent from the polymerized asphaltenes; and reintroducing at least a portion of the separated wash solvent to at least one of the first and second reactors.

In accordance with one or more embodiments of the present disclosure, a continuous catalytic deasphalting process includes introducing a feed comprising crude oil and solvent to a first reactor to deasphalt the feed, producing polymerized asphaltene adsorbed to the catalyst and deasphalted oil; introducing solvent to a second reactor to regenerate catalyst in the second reactor while the deasphalting step is performed in the first reactor; introducing a wash solvent to the first reactor after deasphalting to remove the polymerized asphaltene, thereby regenerating the catalyst in the first reactor and producing a mixture comprising solvent and polymerized asphaltene; passing the mixture to a separator downstream of the reactor system to separate the wash solvent from the polymerized asphaltenes; and reintroducing at least a portion of the separated wash solvent to at least one of the first and second reactors.

A method and catalyst for producing an alcohol, which method includes supplying water and a C2-C5 olefin to a reactor and performing hydration in a gas phase using a solid acid catalyst. The solid acid catalyst is one in which a heteropolyacid or a salt thereof is supported on a silica carrier. The silica carrier is obtained by kneading a fumed silica obtained by a combustion method, a silica gel obtained by a gel method, and a colloidal silica obtained by a sol-gel method or a water glass method; molding the resulting kneaded product; and calcining the resulting molded body.