Abstract: A process for the preparation of a naphtha-selective hydrocracking catalyst comprising of from 3 to 4.8% wt of molybdenum, calculated as metal, and of from 1.5 to 3% wt of nickel, calculated as metal, which comprises loading a refractory oxide support comprising an alumina binder component and a zeolite Y component in a content of from 65 to 75 wt % based on the total weight of the catalyst, with nickel and molybdenum in the presence of citric acid, wherein the zeolite Y component has a unit cell size in the range of from 24.42 to 24.52 ?, a SAR in the range of from 8 to 15, and a surface area of from 850 to 1020 m2/g.

Abstract: An olefin is prepared from an alkyl alcohol in a process which comprises the steps: a) converting the alkyl alcohol into a dialkylether over a first catalyst, to yield a hot dialkylether product stream containing alkyl alcohol, dialkylether and water; b) cooling the hot dialkylether product stream at least partly by indirect heat exchange with a cold dialkylether product stream to below the dew point of water at the prevailing conditions to obtain a gas-liquid mixture; c) separating the obtained mixture into a liquid water-containing stream and a vaporous dialkylether-rich stream; d) subjecting at least part of the vaporous dialkylether-rich stream, as the cold dialkylether product stream in step b), to heat exchange with the hot dialkylether product stream, to yield a heated dialkylether-rich feed; and e) converting the heated dialkylether-rich feed to an olefin over a second catalyst.

Abstract: Process for the preparation of an olefinic product, which process comprises reacting an oxygenate feedstock and an olefinic co-feed in a reactor in the presence of an oxygenate conversion catalyst comprising a molecular sieve having one-dimensional 10-membered ring channels, and a further molecular sieve having more-dimensional channels, wherein the weight ratio between the one-dimensional molecular sieve and the further molecular sieve is in the range of from 1:1 to 100:1, to prepare an olefinic reaction effluent; separating the olefinic reaction effluent into at least a first olefinic fraction and a second olefinic fraction; recycling at least part of the second olefinic fraction; and recovering at least part of the first olefinic fraction as olefinic product.

Abstract: A process for preparing a hydrocarbon conversion catalyst that comprises a specially made silica-alumina composition and a metal or metal compound selected from Group VIB and Group VIII metals. The silica-alumina composition is made by preparing an aqueous mixture containing aluminum sulfate followed by adding alkali metal aluminate to the mixture to inhance the pH to within specified range and then adding aluminum sulfate to the mixture to lower the pH. Then alkali metal silicate is added followed by several other pH swings to provide a mixture containing silica-alumina. The resulting mixture is treated with an alkaline solution to provide a precipitate solid that is recovered to obtain a silica-alumina composition containing of from 30 to 70% wt silica and of from 70 to 30% wt of alumina.

Abstract: A process for preparing a silica-alumina composition containing of from 30 to 70% wt silica and of from 70 to 30% wt of alumina, which process comprises (a) preparing an aqueous mixture containing aluminum sulfate and having a pH in the range of from 1.0 to 6.5; (b) adding alkali metal aluminate to the mixture obtained in step (a) to increase the pH of the mixture to within the range of from 7.1 to 12; (c) adding aluminum sulfate to the mixture obtained in step (b) to lower the pH of the mixture to within the range of from 1.5 to 6.5; (d) adding alkali metal silicate to the mixture obtained in step (c) to increase the pH of the mixture to within the range of from 6.5 to 11, (e) adding aluminum sulfate to the mixture obtained in step (d) to lower the pH of the mixture to within the range of from 1.5 to 6.

Abstract: Process for the preparation of an olefinic product, which process comprises contacting a reaction mixture comprising an oxygenate feedstock and an olefinic component with an oxygenate conversion catalyst comprising a molecular sieve having one-dimensional 10-membered ring channels, in a flow-through reactor unit defining a flow trajectory for fluids towards a downstream outlet for an olefinic reaction effluent from the flow-through reactor unit, wherein an olefinic co-feed is added at an upstream olefin feed inlet of the flow-through reactor unit, and wherein oxygenate feedstock is admitted to the reactor such that it is added to the reaction mixture at a plurality of locations along the feed trajectory.

Abstract: The present invention provides a process for the manufacture of a formulated oxygenate conversion catalyst, the process comprising combining a first molecular sieve comprising aluminosilicate, a second molecular sieve, different from the first molecular sieve, the second molecular sieve having more-dimensional channels, and a matrix material; and, treating the catalyst with a phosphorus containing compound after combination of the molecular sieves with the matrix material. In a further aspect the invention provides a formulated oxygenate conversion catalyst and a process for the preparation of an olefinic product.

Abstract: A process for the preparation of an olefinic product in the presence of an oxygenate conversion catalyst, the catalyst comprising a molecular sieve, wherein the molecular sieves comprises a SAPO-type silicoaluminophosphate, MFI-type aluminosilicate and/or MEL-type aluminosilicate, and a sulphur species at an elemental sulphur loading of at least 0.05 wt % based on total catalyst, the process comprising reacting an oxygenate feedstock under oxygenate conversion conditions to produce an olefinic reaction product. Further a process for the manufacture of an oxygenate conversion catalyst, and an oxygenate conversion catalyst comprising a molecular sieve having n-membered ring channels wherein n is 10 or less, and a sulphur species.

Abstract: A process and a reactor system for the preparation of an olefinic product by reacting an oxygenate feedstock in the presence of an oxygenate conversion catalyst within a reactor system under oxygenate-to-olefin conversion conditions, to obtain the olefinic product, wherein the reactor system has a contact surface coming in contact with oxygenates and wherein at least part of the contact surface is an material of the formula MX wherein: M is a metal and X is C, or M is a metal or Si and X is N.

Abstract: An oxygenate conversion catalyst comprising both a first molecular sieve having one-dimensional 10-membered ring channels, and a second molecular sieve having more-dimensional channels, wherein the second molecular sieve comprises MEL-type aluminosilicate; a process for the preparation of an olefinic product in the presence of the oxygenate conversion catalyst, and a process for the preparation of an oxygenate conversion catalyst.

Abstract: The present invention provides a process for the manufacture of a formulated oxygenate conversion catalyst, the process comprising: —treating with a phosphorus containing compound a first molecular sieve comprising aluminosilicate and a second molecular sieve, different from the first molecular sieve, the second molecular sieve having more-dimensional channels; and—combining the first molecular sieve, the second molecular sieve and a matrix material; wherein the catalyst is not treated with a phosphorus containing compound after combination of the molecular sieves with the matrix material. In a further aspect the invention provides a formulated oxygenate conversion catalyst and a process for the preparation of an olefinic product.

Abstract: A process to prepare methanol and/or dimethylether from a solid carbonaceous feedstock comprising the steps of (a) feeding an oxygen-comprising gas and the carbonaceous feedstock to a burner firing into a reactor vessel, (b) performing a partial oxidation of the carbonaceous feedstock in said burner to obtain a stream of hot synthesis gas and a liquid slag whereby both the hot synthesis gas and the liquid slag flow downwardly relative to the burner, (c) cooling the hot synthesis gas by direct contact with a liquid water-containing cooling medium, (d) performing a water shift reaction on at least part of the synthesis gas, to obtain a synthesis gas effluent, (e) performing an oxygenate synthesis using the synthesis gas effluent of step (d), to obtain a methanol and/or dimethylether containing oxygenate effluent and a first liquid water-rich by-product, wherein at least part of the first liquid water-rich by-product is used in step (c), forming at least part of the liquid water-containing cooling medium.

Abstract: A process for the preparation of an olefinic product in the presence of a catalyst comprising an aluminosilicate having one-dimensional 10-membered ring channels and a silica-to-alumina-ratio of less than 170, and at least one Group IB metal at a metal loading of between 0.1 and 10 wt % of the aluminosilicate, the process comprising reacting an oxygenate feedstock under oxygenate conversion conditions to produce a reaction, product comprising ethylene and/or propylene. An oxygenate conversion catalyst is also claimed.

Abstract: The invention provides a process for the preparation of an olefinic product, the process comprising reacting an oxygenate feedstock in the presence of formulated oxygenate conversion catalyst particles to produce the olefinic product, the formulated catalyst particles comprising a combination of at least a molecular sieve having one-dimensional 10-membered ring channels and a matrix wherein a Group II metal species has been added to the catalyst particles after the combination of said molecular sieve and the matrix.

Abstract: A process for the preparation of an olefinic product, the process comprising reacting an oxygenate feedstock in a reactor in the presence of catalyst comprising an aluminosilicate having one-dimensional 10 membered ring channels, to produce the olefinic product, wherein before reacting the oxygenate feedstock to produce the olefinic product, the acidity of the aluminosilicate has been increased by at least 5% by treating the aluminosilicate with an aqueous solution comprising at least one of a chelating agent and an acid, wherein the increase in acidity is based on the acidity of the aluminosilicate before treatment.

Abstract: An olefin is prepared from an alkyl alcohol in a process which comprises the steps: a) converting the alkyl alcohol into a dialkylether over a first catalyst, to yield a hot dialkylether product stream containing alkyl alcohol, dialkylether and water; b) cooling the hot dialkylether product stream at least partly by indirect heat exchange with a cold dialkylether product stream to below the dew point of water at the prevailing conditions to obtain a gas-liquid mixture; c) separating the obtained mixture into a liquid water-containing stream and a vaporous dialkylether-rich stream; d) subjecting at least part of the vaporous dialkylether-rich stream, as the cold dialkylether product stream in step b), to heat exchange with the hot dialkylether product stream, to yield a heated dialkylether-rich feed; and e) converting the heated dialkylether-rich feed to an olefin over a second catalyst.

Abstract: Process to prepare an olefin-containing product or a gasoline product from a solid carbonaceous feedstock by performing the steps of (a) feeding an oxygen comprising gas and the carbonaceous feedstock to a burner firing into a reactor vessel, which burner is preferably positioned horizontal, (b) performing a partial oxidation of the carbonaceous feedstock in said burner to obtain a stream of hot synthesis gas and a liquid slag, (c) cooling the hot synthesis gas by direct contacting with a liquid water-containing cooling medium, (e) performing a water shift reaction on at least part of the synthesis gas, to obtain a synthesis gas effluent, (g) performing an oxygenate synthesis using the synthesis gas effluent of step (e), to obtain a methanol and/or dimethylether containing oxygenate effluent and a first liquid water-rich by-product, (h) converting the oxygenate effluent to an olefin-containing product or a gasoline product and a second liquid water-rich by-product, wherein at least part of the first and/or se

Abstract: Process for the preparation of an olefinic product, which process comprises reacting an oxygenate feedstock and an olefinic co-feed in a reactor in the presence of an oxygenate conversion catalyst comprising a molecular sieve having one-dimensional 10-membered ring channels, and a further molecular sieve having more-dimensional channels, wherein the weight ratio between the one-dimensional molecular sieve and the further molecular sieve is in the range of from 1:1 to 100:1, to prepare an olefinic reaction effluent; separating the olefinic reaction effluent into at least a first olefinic fraction and a second olefinic fraction; recycling at least part of the second olefinic fraction; and recovering at least part of the first olefinic fraction as olefinic product.

Abstract: An olefin is prepared from an alkyl alcohol in a process, comprising the steps: a) converting the alkyl alcohol into a dialkylether over a first catalyst, to yield a dialkylether product stream containing alkyl alcohol, dialkylether and water; b) separating the dialkylether product stream into a vaporous dialkylether-rich stream and a liquid water-containing stream which water-containing stream comprises at most 5% wt of alkyl alcohol, based on the total weight of water and alkyl alcohol; and c) converting the vaporous dialkylether-rich stream to an olefin over a second catalyst, wherein the dialkylether product stream is enriched with a base.

Abstract: Process for the preparation of an olefinic product, comprising reacting an oxygenate feedstock comprising oxygenate species having an oxygen-bonded methyl group and an olefinic co-feed, in the presence of an oxygenate conversion catalyst comprising a molecular sieve having one-dimensional 10-membered ring channels, to prepare an olefinic reaction effluent, wherein the olefinic co-feed comprises less than 10 wt % of C5+ hydrocarbon species; fractionating the olefinic reaction effluent to obtain at least a light olefinic fraction comprising ethylene, and a heavier olefinic fraction comprising C4 olefins and less than 10 wt % of C5+ hydrocarbon species; recycling at least part of the heavier olefinic fraction; and withdrawing at least part of the light olefinic fraction as olefinic product.