Entries |
Document | Title | Date |
20090048093 | CARBON-BASED MATERIAL COMBUSTION CATALYST, MANUFACTURING METHOD OF THE SAME, CATALYST CARRIER, AND MANUFACTURING METHOD OF THE SAME - A carbon-based material combustion catalyst is manufactured by performing a mixing step, a drying step, and a burning step. In the mixing step, zeolite except for sodalite, an alkali metal source, and/or an alkaline earth metal source are mixed in water at a predetermined ratio. In the drying step, a liquid mixture after the mixing step is heated to evaporate the water, thereby obtaining a solid. In the burning step, the solid is burned at a temperature of 600° C. or more. The obtained carbon-based material combustion catalyst causes carbon-based material to be stably burned and removed at a low temperature for a long time. | 02-19-2009 |
20090054224 | Process for Preparing Catalyst Supports Having Reduced Levels of Contaminants - A method of preparing a catalyst support is described comprising washing a precipitated metal oxide material with water and/or an aqueous solution of acid and/or base such that contaminant levels in said precipitated metal oxide are reduced. The method may be applied to precipitated alumina materials to reduce contaminants selected from sulphur, chlorine, Group 1 A and Group 2A metals. The catalyst supports may be used to prepare catalysts for the Fischer-Tropsch synthesis of hydrocarbons. | 02-26-2009 |
20090075813 | CATALYST AND METHOD OF MANUFACTURE - Disclosed herein is a catalytic composition comprising a first catalyst composition portion that comprises a zeolite; and a second catalyst composition portion that comprises a catalytic metal disposed upon a porous inorganic substrate; the first catalyst composition portion and the second catalyst composition portion being in an intimate mixture. Disclosed herein is a method, comprising mixing a first catalyst composition portion with the second catalyst composition portion to form a catalytic composition; the first catalyst composition portion comprising a zeolite and the second catalyst composition portion comprising a metal disposed upon a porous substrate. | 03-19-2009 |
20090099006 | ADDITIVE FOR MAXIMIZING LIGHT OLEFINS IN FCC AND PROCESS FOR PREPARATION THEREOF - The present, invention relates to a process for the production of additives for catalysts for fluid catalytic cracking (FCC) based on zeolite that is selective for light olefins, with the aim of increasing the yields, in FCC units, of liquefied petroleum gas (LPG) and light olefins, of high added value, among others propene and isobutene. This invention provides a method of preparation of catalytic compositions, starting from zeolite modified with phosphate and alkaline-earth metal, that leads to the production of an additive with better performance than the additives, of similar compositions, obtained by other methods of the prior art. The process can be regarded as a development in relation to other processes, as it promotes interaction between the zeolite that is selective for light olefins and its activator, reagent “X”. For this, a separate stage is used during the sequence of stages in the preparation. Moreover, the zeolite does not undergo additional treatments such as filtration, washing or calcination after the treatment with its activator. | 04-16-2009 |
20090156389 | METHOD OF THE PREPARATION OF MICROPOROUS CRYSTALLINE MOLECULAR SIEVE POSSESSING MESOPOROUS FRAMEWORKS - The present invention relates to a method of preparing a microporous crystalline molecular sieve Inorganic gel having mesoporous skeleton, comprising following steps: (a) adding a meso-SDA (meso-Structure Directing Agent) into a gel composition of synthesizing molecular sieve, (b) subjecting the mixture obtained in the above step (a) to crystallization by a hydrothermal reaction, a microwave reaction, a dry-gel synthesis, etc., and (c) removing selectively organic materials from the resulted material obtained in the above step (b) by a calcination or a chemical treatment. Molecular sieve having mesoporous skeleton synthesized by the present invention exhibits, as compared with conventional zeolite, a good molecule diffusion ability and a greatly improved catalytic activity. | 06-18-2009 |
20090186754 | Hydroprocessing catalysts with low surface area binders - Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area. | 07-23-2009 |
20090209406 | Enhancement of Molecular Sieve Performance - A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins. | 08-20-2009 |
20090286670 | Catalyst Composition - The present invention provides an improved catalyst and a method for its manufacture. The catalyst comprises an acidic, porous crystalline material and has a Proton Density Index of greater than about 1.0, for example from greater than 1.0 to about 2.0, e.g. from about 1.01 to about 1.85. This catalyst may be used to effect conversion in chemical reactions, and is particularly useful in a process for selectively producing a monoalkylated aromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent under at least partial liquid phase conditions. The acidic, porous crystalline material of the catalyst may comprise an acidic, crystalline molecular sieve having the structure of zeolite Beta, an MWW structure type material, e.g. MCM-22, MCM-36, MCM-49 MCM-56, or a mixture thereof. | 11-19-2009 |
20090291824 | HONEYCOMB STRUCTURE - A honeycomb structure includes a honeycomb structure includes a honeycomb unit. The honeycomb unit has thermal conductivity equal to or greater than about 0.15 W/m/K but less than or equal to about 0.60 W/m/K and has Young's modulus equal to or greater than about 1.5 MPa but less than or equal to about 7.0 Mpa. The honeycomb unit includes zeolite, an inorganic binder, and partition walls. The partition walls extend along a longitudinal direction of the honeycomb unit to define plural through holes. | 11-26-2009 |
20090291825 | HONEYCOMB STRUCTURE - A honeycomb structure includes a honeycomb unit containing zeolite and an inorganic binder and having cell walls extending from one end to another end along a longitudinal direction of the honeycomb unit to define cells. An amount of zeolite contained per apparent unit volume of the honeycomb unit is approximately 230 g/L or more. A thickness X mm of the cell walls is in a range from approximately 0.15 mm to approximately 0.35 mm. A mathematical formula 40X+20≦Y≦40X+30 is satisfied when a porosity of the cell walls is defined as Y %. | 11-26-2009 |
20090291826 | HONEYCOMB STRUCTURE - A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit includes zeolite, inorganic binder, and cell walls extending from a first end face to a second end face along a longitudinal direction of the at least one honeycomb unit to define cells. The at least one honeycomb unit includes a cross-sectional surface orthogonal to the longitudinal direction having a substantially square shape. An aperture ratio of the at least one honeycomb unit is in a range from about 50% to about 65%. A formula 12.5V+5011-26-2009 | |
20090291827 | HONEYCOMB STRUCTURE - A honeycomb structure includes at least one honeycomb unit and a coat layer provided at a peripheral surface of the honeycomb structure. The honeycomb unit includes zeolite, an inorganic binder, and cell walls extending from a first end face to a second end face of the honeycomb unit along a longitudinal direction of the honeycomb unit to define cells. A ratio κc/κh is equal to or larger than about 0.75 and equal to or smaller than about 1.25. Ec/Eh is equal to or larger than about 0.75 and equal to or smaller than about 1.25. The κc and κh are coefficients of thermal expansion of the coat layer and the honeycomb unit, respectively, in a radial direction of the honeycomb structure. The Ec and Eh are Young's moduli of the coat layer and the honeycomb unit, respectively, in the radial direction of the honeycomb structure. | 11-26-2009 |
20090291828 | HONEYCOMB STRUCTURE - A honeycomb structure includes a plurality of honeycomb units and an adhesive layer. Each of the plurality of honeycomb units has a longitudinal direction and includes zeolite, an inorganic binder, a first end face, a second end face, and a cell wall. The second end face is located opposite to the first end face in the longitudinal direction. The cell wall extends from the first end face to the second end face along the longitudinal direction to define cells. The adhesive layer includes zeolite and is provided between the plurality of honeycomb units to connect the plurality of honeycomb units. A ratio of a coefficient of thermal expansion of the adhesive layer to a coefficient of thermal expansion of each of the plurality of honeycomb units is in a range from approximately 0.8 to approximately 1.2. | 11-26-2009 |
20090291829 | HONEYCOMB STRUCTURE - A honeycomb structure includes at least one honeycomb unit. The at least one honeycomb unit has a longitudinal direction and cell walls extending from one end face to another end face along the longitudinal direction to define cells. The at least one honeycomb unit includes an inorganic binder, and zeolite ion-exchanged with plural kinds of metal ions. | 11-26-2009 |
20090291830 | HONEYCOMB STRUCTURE - A honeycomb structure includes a center area, an outer peripheral area, and at least one honeycomb unit having a longitudinal direction. The center area has a smaller similarity shape in relation to a peripheral shape of the honeycomb structure in a cross section perpendicular to the longitudinal direction. The smaller similarity shape is defined by including a center of the honeycomb structure and substantially a half of a length from the center to the peripheral shape of the honeycomb structure. The outer peripheral area is located outside the smaller similarity shape. An aperture ratio of the honeycomb structure is from approximately 50% to approximately 65% in the cross section of the honeycomb structure. The aperture ratio includes a first aperture ratio in the outer peripheral area and a second aperture ratio in the center area. The first aperture ratio is larger than the second aperture ratio. | 11-26-2009 |
20090305872 | Hydrocarbon Conversion Process Using A Catalyst Composition Comprising Aluminium And A Divalent Metal - Fluid catalytic cracking process comprising the steps of (a) preparing a physical 5 mixture comprising (i) aluminium trihydrate and/or flash-calcined aluminium trihydrate and (ii) a divalent metal oxide, hydroxide, carbonate, or hydroxycarbonate, (b) shaping the physical mixture of step a) to form fluidisable particles, and (c) adding the fluidisable particles obtained from step b) or step c) to a fluid catalytic cracking unit. In this FCC process, active sites of the catalyst composition are formed in-situ, i.e. in the FCC unit, without requiring peptisation, aging, or calcination steps prior to the addition of the composition to the hydrocarbon conversion unit. | 12-10-2009 |
20090318283 | CATALYST COMPOSITION AND METHOD - A method comprising forming a slurry comprising a first catalyst composition, a second catalyst composition, and a solvent, wherein the first catalyst composition comprises a zeolite and the second catalyst composition comprises a second catalytic metal disposed upon a porous inorganic support; washcoating the slurry onto a substrate; and calcining the washcoated substrate. | 12-24-2009 |
20100081564 | PROTECTION OF SOLID ACID CATALYSTS FROM DAMAGE BY VOLATILE SPECIES - The invention provides a method to avoid catalyst damage and achieve longer catalyst life by selecting appropriate materials for reactor spacers, liners, catalyst binders, and supports, in particular, by not using crystalline silica-containing and high phosphorus-containing materials, if the presence of even small amount of steam is anticipated. In addition, alkali metals and alkaline earth metals are avoided due to potential damage to the catalyst. | 04-01-2010 |
20100197480 | IM-14 CRYSTALLIZED SOLID AND ITS PROCESS FOR PREPARATION - A crystallized solid, referred to by the name IM-14, which has an X-ray diffraction diagram as provided below, is described. Said solid has a chemical composition that is expressed according to the formula GeO | 08-05-2010 |
20110082025 | Phosphorus-Containing Zeolite Catalysts and Their Method of Preparation - A zeolite catalyst that may be used in aromatic alkylation is prepared by treating a zeolite with a phosphorus compound. The phosphorus-treated zeolite is calcined and contacted with liquid water, whereby an amount of phosphorus is removed from the phosphorus-treated zeolite. The phosphorus-treated zeolite is then heated. A method of preparing an aromatic product may also be carried out by contacting the prepared zeolite catalyst with an aromatic alkylation feed of an aromatic compound and an alkylating agent under reaction conditions suitable for aromatic alkylation. | 04-07-2011 |
20110118108 | HONEYCOMB STRUCTURAL BODY AND MANUFACTURING METHOD OF HONEYCOMB STRUCTURAL BODY - A honeycomb structural body includes honeycomb units that are pillar-shaped and bound together. Each of the honeycomb units includes plural cells, phosphate-based zeolite, and a first inorganic binder. The plural cells extend from a first end face to a second end face in a longitudinal direction of each of the honeycomb units. The plural cells are defined by cell walls. The mat members are interposed between the honeycomb units and include a first inorganic fiber. | 05-19-2011 |
20110143919 | OCP Catalyst With Improved Steam Tolerance - A catalyst is present for use in an olefin cracking process. The catalyst is a zeolite that has been loaded with an alkaline earth metal. The alkaline earth metal loaded catalyst has an increased steaming tolerance and increases the useful life of the catalyst during the cracking process and the regeneration cycle. | 06-16-2011 |
20110152065 | METHOD FOR PRODUCING AN OIL BINDING AGENT - A method for producing an oil binding agent, using highly porous natural siliceous material and organic-containing remaining material, wherein the highly porous natural siliceous material having an initial grain size of between 4 and 10 mm is mixed with the organic-containing remaining material and the mixture is calcined at a temperature between 520 and 550° C. and then comminuted to a grain size spectrum substantially ranging between 4 and 0.125 mm | 06-23-2011 |
20110224067 | NOVEL ULTRA STABLE ZEOLITE Y AND METHOD FOR MANUFACTURING THE SAME - This invention comprises USY zeolite prepared by treating a USY zeolite under hydrothermal conditions after forming the USY zeolite from heat treating ammonium exchanged zeolite Y, e g, by calcination. When this invention is used in a FCC catalyst, a significant improvement of activity and selectivity in the fluid catalytic cracking (FCC) performance is observed, compared to FCC catalysts containing conventional USY zeolite. The process used to make the invention is efficient and comprises treating the USY zeolite in an exchange bath under the aforementioned hydrothermal conditions. The surface of the resulting USY zeolite has a molar ratio of alumina to silica that is higher than that seen in the bulk USY zeolite and has a unique structure as viewed by SEM and TEM. | 09-15-2011 |
20120077666 | Catalyst, Catalyst Support And Process For Hydrogenation, Hydroisomerization, Hydrocracking And/Or Hydrodesulfurization - Described are catalysts for the hydrogenation, hydroisomerisation, hydrocracking and/or hydrodesulfurisation, of hydrocarbon feedstocks, the catalysts comprising a substantially binder free bead type support material comprising 5 to 60 wt. % of at least one crystalline molecular sieve material and 40 to 95 wt. % of non-crystalline, non-zeolitic silica-alumina and a catalytically active component comprising precious metals. Also described are methods for making catalyst supports by the dropwise addition of an aqueous sol of inorganic salts of aluminum and silicon, having dispersed therein the crystalline molecular sieve material, through an oil-phase to a water phase, thus providing homogeneous beads that are obtained without a separate shape-forming step. | 03-29-2012 |
20120108415 | METHOD FOR FORMING AN ALUMINOSILICATE-ZEOLITE LAYER ON A METAL SUBSTRATE, THE COATED SUBSTRATE AND THE USE THEREOF - A method is described for forming an aluminosilicate-zeolite layer on an aluminium-containing substrate which is transferred into an aqueous reaction dispersion containing silicon and optionally aluminium as network-forming elements, wherein, irrespective of whether or not aluminium is present in the aqueous reaction dispersion, the molar ratio of the aluminium in the aqueous reaction dispersion, optionally 0, to the sum of the designated network-forming elements contained in the aqueous reaction dispersion ranges between 0 and about 0.4, the aqueous reaction dispersion containing the aluminium-containing substrate is heated, and aluminium is extracted from the aluminium-containing substrate for the aluminosilicate-zeolite formation process, and the layer of an aluminosilicate-zeolite is formed on the aluminium-containing substrate by in situ direct crystallization. This method is characterized in that a layer of an aluminium-rich aluminosilicate-zeolite having an Si/Al ratio of lower than 5 is formed on the aluminium-containing substrate by introducing into the aqueous reaction dispersion a Si source in an amount sufficient for forming the Si/Al ratio of lower than 5, and an Al source that meets the requirement of the molar substoichiometric value, and the aluminium-containing metal substrate, wherein the pH value of the aqueous reaction dispersion is alkalinized and the layer of the aluminium-rich aluminosilicate-zeolite is crystallized onto the aluminium-containing metal substrate. | 05-03-2012 |
20120178615 | Modified Zeolite Catalyst - A modified zeolite catalyst derived from a zeolite of a structural type which consists of a one-dimensional micropore structure of channels made from rings containing between 8 and 12 silicon/aluminium atoms is disclosed. It consists substantially of a plurality of crystallites having additional mesoporosity whose volume is in the range 0.09 to 0.25 ml | 07-12-2012 |
20130012377 | BaX TYPE ZEOLITE GRANULE AND PROCESS FOR PREPARING THE SAME - The present invention provides a method for preparing a BaX type zeolite granules comprising: adding a carbohydrate-based molding promoter to NaX type zeolite powder and thereto subsequently spraying and blending alumina sol and silica sol to form granules of the mixture; heating the formed granules to convert the alumina and silica component to aluminosilica so as to generate pores inside the formed granules; hydrothermally treating the resulted granules in a sodium hydroxide aqueous solution under the conditions for zeolite synthesis, thereby converting a portion of the aluminosilica to zeolite; and carrying out ion-exchanging by Ba ions. The present invention also provides BaX type zeolite granules which have excellent strength and can be suitably used as an adsorbent in simulated moving bed (SMB) application. | 01-10-2013 |
20130281284 | CATALYST FOR NITROGEN OXIDE REMOVAL - [Object] To provide a catalyst for nitrogen oxide removal having no degradation problem caused by adsorbed water when a temperature is raised sharply and exhibiting excellent nitrogen oxide removal performance and retentive characteristic thereof. | 10-24-2013 |
20130345045 | CATALYSTS FOR IMPROVED CUMENE PRODUCTION AND METHOD OF MAKING AND USING SAME - An aromatic alkylation catalyst is presented. The aromatic alkylation catalyst comprised a zeolite, an inorganic oxide, and silanol functional groups of less than about 0.65 area/mg on the surface of the catalyst. | 12-26-2013 |
20140005031 | SPHERICAL MATERIAL BASED ON HETEROPOLYANIONS TRAPPED IN A MESOSTRUCTURED OXIDE MATRIX AND USE THEREOF AS CATALYST IN HYDROCARBON REFINING PROCESSES | 01-02-2014 |
20140080696 | METHOD OF FORMING ZEOLITE SHAPED BODY WITH SILICA BINDER - A method of forming a zeolite shaped body is carried out by preparing an aqueous mixture containing a zeolite, a silica binder material and an extrusion aid. The extrusion aid is at least one of PVAc-PVA1 (80-89) and polyacrylamide. The mixture is formed into a body having a selected shape. The shaped body is heated to form the zeolite shaped body. | 03-20-2014 |
20140171291 | UZM-43 AN EUO-NES-NON ZEOLITE - A new family of crystalline aluminosilicate zeolites has been synthesized that has been designated UZM-43. These zeolites are similar to previously known ERS-10, SSZ-47 and RUB-35 zeolites but are characterized by unique x-ray diffraction patterns and compositions and have catalytic properties for carrying out various hydrocarbon conversion processes. Catalysts made from these zeolites are useful in hydrocarbon conversion reactions. | 06-19-2014 |
20140221194 | METHODS FOR PRODUCING ZEOLITE CATALYSTS AND METHODS FOR PRODUCING ALKYLATED AROMATIC COMPOUNDS USING THE ZEOLITE CATALYSTS - A method for producing a zeolite catalyst includes mixing a zeolite material with a filler material comprising transition phase and alpha alumina, a porosity enhancing agent, and water to produce a paste; mulling the paste; extruding the paste to produce a shaped extrudate; and drying and calcining the shaped extrudate to produce a zeolite catalyst, wherein the zeolite catalyst has a total porosity greater than about 0.60 ml/gm and greater than 15% of a total pore volume of pores in the range from about 550 Å to about 31,000 Å. | 08-07-2014 |
20140349839 | MULTI-CAPILLARY MONOLITH MADE FROM AMORPHOUS SILICA AND/OR ACTIVATED ALUMINA - The invention relates to a monolithic porous material based on amorphous silica or activated alumina or on one of their mixtures, the material comprising substantially rectilinear capillary ducts that lie parallel to one another, and being intended to be used as packing in a chromatography column, characterised in that:
| 11-27-2014 |
20140357473 | FORMED CERAMIC SUBSTRATE COMPOSITION FOR CATALYST INTEGRATION - Disclosed herein are formed ceramic substrates comprising an oxide ceramic material, wherein the formed ceramic substrate comprises a low elemental alkali metal content, such as less than about 1000 ppm. Also disclosed are composite bodies comprising at least one catalyst and a formed ceramic substrate comprising an oxide ceramic material, wherein the composite body has a low elemental alkali metal content, such as less than about 1000 ppm, and methods for preparing the same. | 12-04-2014 |
20140378296 | Manufacture of Catalyst Compositions and Systems - A method of producing a catalyst composition is provided, the method comprising mixing (i) a first component comprising a zeolite, and (ii) a second component comprising a homogeneous solid mixture containing at least one catalytic metal and at least one metal inorganic support, wherein the first component and the second component form an intimate mixture, and wherein the homogeneous solid mixture is produced by mixing a reactive solution comprising a precursor of the metal inorganic support and a templating agent with a precursor of the catalyst metal, and calcining the mixture to form the homogeneous solid mixture. The templating agent affects one or more of pore size, pore distribution, pore spacing, or pore dispersity of the metal inorganic support. The pores of the solid mixture produced after calcination may have an average diameter in a range of about 1 nanometer to about 15 nanometers. | 12-25-2014 |
20140378297 | SILICON CARBIDE POROUS MATERIAL, HONEYCOMB STRUCTURE AND ELECTRIC HEATING-TYPE CATALYST CARRIER - There is disclosed a silicon carbide porous material having a high thermal shock resistance. The silicon carbide porous material of the present invention includes silicon carbide particles, metal silicon and an oxide phase, and the silicon carbide particles are bonded to one another via at least one of the metal silicon and the oxide phase. Furthermore, the oxide phase includes a parent phase, and a dispersion phase dispersed in the parent phase and having a higher thermal expansion coefficient than the parent phase. Here, a lower limit value of a content ratio of the dispersion phase in the oxide phase is preferably 1 mass %, and upper limit value of the content ratio of the dispersion phase in the oxide phase is 40 mass %. Furthermore, it is preferable that the parent phase is cordierite and that the dispersion phase is mullite. | 12-25-2014 |
20150065334 | HONEYCOMB CATALYST AND EXHAUST GAS PURIFYING APPARATUS - A honeycomb catalyst includes a honeycomb unit. The honeycomb unit has a plurality of through holes that are arranged in parallel in a longitudinal direction and partitions that are provided between the plurality of through holes. The honeycomb unit includes a zeolite, inorganic particles, and an inorganic binder. The zeolite includes a CHA-structured aluminosilicate having a Si/Al ratio of about 15 to about 50. The inorganic particles includes an oxide that has a positive coefficient of thermal expansion. A volume ratio of the zeolite to the inorganic particles is about 50:about 50 to about 90:about 10. | 03-05-2015 |
20150352538 | ZEOLITIC MATERIALS WITH MODIFIED SURFACE COMPOSITION, CRYSTAL STRUCTURE, CRYSTAL SIZE, AND/OR POROSITY, METHODS FOR MAKING THE SAME, AND METHODS FOR CONVERTING OXYGENATES TO OLEFINS VIA REACTIONS CATALYZED BY THE SAME - Zeolitic materials with modified surface composition, crystal structure, crystal or particle size, and/or porosity, methods for making the same, and methods for converting oxygenates to olefins using the same are provided herein. In an exemplary embodiment, a method for reducing a surface silicon content of a silicon-containing zeolitic material is provided that includes providing a silicon-containing zeolitic material; and contacting the silicon-containing zeolitic material with a modifying solution comprising one or more of an amine, an alcoholamine, and an amino acid. In this embodiment, the contacting occurs under conditions suitable for the modifying solution to reduce a surface silicon content, increase the porosity, and/or decrease an average crystal or particle size of the silicon-containing zeolitic material. | 12-10-2015 |
20160001274 | ZEOLITE, METHOD FOR MANUFACTURING ZEOLITE, HONEYCOMB CATALYST, AND EXHAUST GAS PURIFYIG APPARATUS - A zeolite has a CHA structure, a SiO | 01-07-2016 |
20160001277 | ZEOLITE, METHOD FOR MANUFACTURING ZEOLITE, HONEYCOMB CATALYST, AND EXHAUST GAS PURIFYIG APPARATUS - A zeolite has a CHA structure, a SiO | 01-07-2016 |
20160023187 | A METHOD FOR PRODUCING A CRYSTALLINE FILM OF ZEOLITE AND/OR ZEOLITE LIKE CRYSTALS ON A POROUS SUBSTRATE - The invention concerns a method for producing a crystalline film comprising zeolite crystals and/or zeolite-like crystals on a porous substrate The method includes the steps of: a) providing a porous substrate, b) rendering at least a part of said porous substrate hydrophobic by treatment with a composition comprising one or more hydrophobic agent(s), d) subjecting said treated porous substrate to a composition comprising zeolite crystals and/or zeolite-like crystals thereby depositing and attaching zeolite crystals and/or zeolite-like crystals on said treated porous substrate, and e) growing a crystalline film comprising zeolite crystals and/or zeolite-like crystals on said treated porous substrate obtained in step d). Crystalline films find use in a variety of fields such as in the production of membranes, catalysts etc. | 01-28-2016 |
20160074850 | Catalyst Composition - The present invention provides an improved catalyst and a method for its manufacture. The catalyst comprises an acidic, porous crystalline material and has a Proton Density Index of greater than about 1.0, for example from greater than 1.0 to about 2.0, e.g. from about 1.01 to about 1.85. This catalyst may be used to effect conversion in chemical reactions, and is particularly useful in a process for selectively producing a monoalkylated aromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent under at least partial liquid phase conditions. The acidic, porous crystalline material of the catalyst may comprise an acidic, crystalline molecular sieve having the structure of zeolite Beta, an MWW structure type material, e.g. MCM-22, MCM-36, MCM-49 MCM-56, or a mixture thereof. | 03-17-2016 |