Abstract: The present invention provides a zeolite-containing catalyst having excellent shape, fluidity and mechanical strength as a catalyst for a fluidized bed reaction. The present invention provides a zeolite-containing catalyst which is a particulate catalyst containing zeolite and silica, wherein the catalyst has an average particle diameter of 20 to 300 ?m and the ratio of the void area in the cross-section of the particle is 30% or less relative to the cross-section area of the particle.

Abstract: Provided is a catalyst for hydrocracking of heavy oil which is excellent in both functions of cracking activity and desulfurization activity with respect to heavy oil by striking a balance between the cracking activity and desulfurization activity and which includes a support including a crystalline aluminosilicate and a porous inorganic oxide excluding the crystalline aluminosilicate, with an active metal being supported on the support, in which (a) the support includes the crystalline aluminosilicate in an amount of 45% by mass or greater and smaller than 60% by mass and the porous inorganic oxide excluding the crystalline aluminosilicate in an amount of greater than 40% by mass and 55% by mass or smaller, based on the sum of an amount of the crystalline aluminosilicate and an amount of the porous inorganic oxide excluding the crystalline aluminosilicate, (b) the active metal is at least one kind of metal selected from metals belonging to Groups 6, 8, 9, and 10 of the Periodic Table, and (c) the catalyst fo

Abstract: A catalyst is described which comprises at least one IZM-2 zeolite and at least one matrix, said zeolite having a chemical composition expressed as the anhydrous base in terms of moles of oxides by the following general formula: XO2: aY2O3: bMnO, in which X represents at least one tetravalent element, Y represents at least one trivalent element and M is at least one alkali metal and/or alkaline-earth metal, a and b respectively representing the number of moles of Y2O3 and MnO; and a is in the range 0.001 to 0.5, b is in the range 0 to 1 and n is in the range 1 to 2. Said catalyst is used in various processes for the transformation of hydrocarbon feeds.

Abstract: Disclosed are catalyst compositions including zeolite and silica components, methods of making, and processes of using in the thermo-catalytic conversion of biomass. Such disclosed methods of making include: i) spray drying of the catalyst precursor slurry at a pH below 1, or ii) the removal of ions such as sodium from the binder material prior to spray drying the catalyst precursor slurry at a pH below 2.7, or iii) spray drying the catalyst precursor including a pore regulating agent followed by steam treating, or iv) some combination of i), ii) and iii).

Abstract: A process for production of a DDR-type zeolite membrane, which comprises: both a seed crystal-forming step of immersing a porous substrate in a seed crystal-forming raw material solution which contains a DDR-type zeolite powder dispersed therein and performing hydrothermal synthesis to form plural DDR-type zeolite crystal particles on surface of the porous substrate, and a membrane-forming step of immersing the resulting porous substrate with DDR-type zeolite crystal particles on the surface in a membrane-forming raw material solution which is free from DDR-type zeolite powder and performing hydrothermal synthesis to form a DDR-type zeolite membrane on the surface of the porous substrate. According to the process, a dense DDR-type zeolite membrane can be formed, and the vessel used in the synthesis can be prevented from being damaged.

Abstract: A method is provided for producing a DDR type zeolite membrane, including a membrane formation step of immersing a porous substrate having a DDR type zeolite seed crystal adhered thereon, in a raw material solution containing 1-adamantaneamine, silica (SiO2) and water, and conducting a hydrothermal synthesis of DDR type zeolite to form a 1-adamantaneamine-containing DDR type zeolite membrane on the porous substrate to produce a precursor of DDR type zeolite membrane-containing body, and a burning step of heating the precursor at 400° C. or above and at 550° C. or below to burn and remove the 1-adamantaneamine contained in the DDR type zeolite membrane.

Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. The catalyst is formed by spray-drying a slurry containing water, substantially inert microspheres and a zeolite precursor and crystallizing zeolite in the active shell to create the cracking catalyst. Methods of using the cracking catalyst are also described.

Abstract: Material with hierarchical porosity consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting amorphous and microporous walls of thickness ranging between 1.5 and 50 nm, said elementary spherical particles having a maximum diameter of 200 microns. The matrix based on silicon oxide can contain aluminium. The preparation of said material is also described.

Abstract: A material with a hierarchical porosity is described, constituted by at least two spherical elementary particles, each of said spherical particles comprising zeolitic nanocrystals having a pore size in the range 0.2 to 2 nm and a matrix based on silicon oxide, which is mesostructured, having a pore size in the range 1.5 to 30 nm and having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 ?m. the matrix based on silicon oxide may contain aluminium. The preparation of said material is also described.

Abstract: A catalyst, useful in the preparation of isoolefins and containing 0.1 to 20% by mass of an alkali metal oxide, an alkaline earth metal oxide and mixtures thereof; 0.1 to 99% by mass of aluminum oxide; and 0.1 to 99% by mass of silicon dioxide, is prepared by a) treating an aluminosilicate with an aqueous alkali metal salt solution, an alkaline earth metal salt solution and mixtures thereof, under acidic conditions, to obtain a treated aluminosilicate; and b) calcining the treated aluminosilicate, to obtain the catalyst.

Abstract: A quantity of solution sufficient to dissolve a pH controlling substance and/or substantially dissolve a surfactant without substantial excess solution is controlled under a set of time and temperature conditions to transform an inorganic material having long-range crystallinity to a mesostructure having long-range crystallinity. The method employs concentrated conditions that have a consistency similar to a thick slurry. The economic viability of scaling up such thick slurry methods is improved relative to prior more dilute methods of transforming an inorganic material to a mesostructure.

Abstract: A mesostructured material that consists of at least two elementary spherical particles, each of said particles comprising a mesostructured matrix based on aluminum oxide and having a pore size of between 1.5 and 30 nm, an aluminum oxide content that represents more than 46% by weight relative to the mass of said matrix, which has amorphous walls with a thickness of between 1 and 30 nm and whereby said elementary spherical particles have a maximum diameter of 10 ?m, is described. Said mesostructured matrix can also contain silicon oxide. Each of the spherical particles of the mesostructured material can also contain zeolitic nanocrystals so as to form a material with a mixed porosity that is both mesostructured and zeolitic in nature. The preparation of said material is also described.

Abstract: The present invention relates to a catalytic composition which comprises a beta zeolite, a metal of group VIII, a metal of group VI B and optionally one or more oxides as carrier. The catalytic system of the present invention can be used for the hydrotreating of hydrocarbon mixtures and more specifically in the upgrading of hydrocarbon mixtures having boiling ranges within the range of 35° to 250° C., containing sulfur impurities, i.e. in hydrodesulfuration with contemporaneous skeleton isomerization and a reduced hydrogenation degree of olefins contained in said hydrocarbon mixtures, the whole process being carried out in a single step.

Abstract: An extruded catalyst comprising at least one molecular sieve material and an amorphous aluminum phosphate binder wherein the aluminum phosphate binder remains substantially amorphous after calcining.

Abstract: An improved hydrotreating process for use with lube oil boiling range feedstreams utilizing a catalyst comprising a hydrogenation-dehydrogenation component selected from the Group VIII noble metals and mixtures thereof, a mesoporous support, and a binder.

Abstract: A ceramic body, a ceramic catalyst body, a ceramic catalyst body and related manufacturing methods are disclosed wherein a cordierite porous base material has a surface, formed with acicular particles made of a component different from that of cordierite porous base material, which has an increased specific surface area with high resistance to a sintering effect. The ceramic body is manufactured by preparing a slurry containing an acicular particle source material, preparing a porous base material, applying the slurry onto a surface of the porous base material and firing the porous base material, whose surface is coated with the slurry, to cause acicular particles to develop on the surface of the porous base material. A part of or a whole of surfaces of the acicular particles is coated with a constituent element different from that of the acicular particles.

Abstract: Described is a process for the preparation of a supported zeolite membrane that consists of a zeolite/substrate composite layer, whose zeolite phase exhibits a crystallinity of at least 85%, comprising: a) the formation of a gel or a solution that comprises at least one source of silica and water, supplemented with at least one polar organic compound, b) bringing into contact said gel or said solution with a porous substrate, c) the crystallization of the zeolite starting from said gel or said solution; and d) the elimination of residual agents. The molar ratio of the water to the silica in the gel or the solution in stage a) is between 27:1 and 35:1. The crystallization time of stage c) is at least 25 hours. Said process is particularly suited for the preparation of zeolite membranes whose zeolite phase is of the MFI-structural type.

Abstract: The present invention provides a catalyst and a process for its preparation and its use in cracking heavy feedstocks. The catalyst comprises one or more zeolites having a controlled silica to alumina ratio and preferably treated with alkali in the presence of a matrix component selected from the group consisting of clays, synthetic matrix other than pillared clay, and mixtures thereof. The catalyst are particularly useful in treating heavy feedstock such as residues from oil sands processing.

Abstract: A method for synthesizing high-content NaY molecular sieves with kaolin sprayed microspheres includes adding functional components and deionized water into kaolin so as to be pulped into a mixed slurry. The slurry is sprayed into microspheres. The microspheres are calcined at a temperature between 700 and 1,000° C. and mixed with a directing agent for crystallization. The resultant solid is filtrated and washed with water and then dried to obtain a final in-situ crystallized product with high content of molecular sieves.

Abstract: Zeolites with uniform intracrystal textural pores between 1 and 10 nm are described. Intracrystal pores, an alumina source and a silica source are reacted in the presence of a silane modified polymer as a porogen and the reaction product is calcined to form the zeolite. The zeolites are useful in catalytic reactions and adsorption processes.

Abstract: A process is provided for the production of a noble metal on TS-1 catalyst useful for the production of propylene oxide wherein TS-1 from hydrothermal crystallization has noble metal dispersed thereon, the resulting material is spray dried and template used in the crystallization is removed, the resulting product is treated with hydrogen to form active catalyst for propylene oxide production.

Abstract: A catalyst is described based on crystalline aluminosilicates of the pentasil type, characterized in that it is constructed from primary crystallites with an average diameter of at least 0.01 ?m and less than 0.1 ?m, that are combined to at least 20% to agglomerates of 5 to 500 ?m, in which the primary crystallites or agglomerates are bonded together by finely divided aluminum oxide, that its BET surface is 300 to 600 m2/g and its pore volume (determined according to mercury porosimetry) is 0.3 to 0.8 cm3/g, that it is present in H form and that the amount of finely divided aluminum oxide binder is 10 to 40 wt. %, referred to the total weight of the aluminosilicate, in which the finely divided aluminum oxide binder is used in the reaction charge as peptizable aluminum oxide hydrate, sodium aluminate being used as aluminum and alkali source, and primary synthesis of the crystalline aluminosilicate occurs without addition of acid.

Abstract: The present invention relates to the use of a catalytic system comprising a metal of group VIII, a metal of group VI, a metal oxide as carrier and suitable quantities of a component selected from a zeolite of the FER type, phosphorous, and a mixture thereof, in upgrading of hydrocarbons boiling in the naphtha range containing sulfur impurities, namely in hydrodesulfurization with contemporaneous skeleton isomerization of olefins contained in said hydrocarbons and/or with reduction of olefins hydrogenation, carried out in a single step.

Abstract: An improved catalytic composite and process are disclosed for the selective disproportionation of toluene. The process uses a layered composite comprising a catalytically active core which comprises a zeolitic aluminosilicate having a SiO2:Al2O3 ratio of 8 to 50 and a relatively inactive protective mantle which preferably comprises boralite. Optionally, the composite is selectively precoked prior to toluene disproportionation. The composite and process provide improved selectivity for the production of paraxylene.

Abstract: Described is a supported zeolite membrane that consists of a zeolite/substrate composite layer that exhibits, in the n-butane/isobutane separation, a permeance of n-butane of at least 6.10−7 mol/m2.s.Pa and a selectivity of at least 250 at the temperature of 180° C. Said zeolite/substrate composite layer is thin and continuous. This membrane is used in processes for gas separation, vapor separation and liquid separation.

Abstract: The present invention relates to a catalytic composition which comprises a beta zeolite, a metal of group VIII, a metal of group VIB and optionally one or more oxides as carrier. The catalytic system of the present invention can be used for the hydrotreating of hydrocarbon mixtures and more specifically in the upgrading of hydrocarbon mixtures having boiling ranges within the range of 35° to 250° C., containing sulfur impurities, i.e. in hydrodesulfuration with contemporaneous skeleton isomerization and a reduced hydrogenation degree of olefins contained in said hydrocarbon mixtures, the whole process being carried out in a single step.

Abstract: The invention relates to absorvents for water and aqueous liquids, which are vased on water-swell-able, yet water-insoluble polymers wherein cyclodextrin or cyclodextrin derivatives and zeolites high in silicon have been incorporated ionically, covalently and/or as a result of mechanical inclusion.

Abstract: Process for producing spherical catalyst particles containing a zeolite as active element, according to which a sol containing zeolite crystals and at least one gel-forming compound is sprayed from below directly into a reaction zone containing a reaction gas such that the sol breaks up into individual sol beads immediately before or upon entry into the reaction zone, the sol beads flow through the reaction zone on a curved trajectory, in so doing are pre-consolidated and the sol beads are collected on a collecting means.

Abstract: There is provided macrostructures of porous inorganic material which can have controlled size, shape, and/or porosity and a process for preparing the macrostructures. The macrostructures comprise a three-dimension network of particles of porous inorganic materials. The process for preparing the macrostructures involves forming an admixture containing a porous organic ion exchanger and a synthesis mixture capable of forming a porous inorganic material and then converting the synthesis mixture to a solid porous inorganic material. After formation of the composite material, the porous organic ion exchanger can be removed from the composite material to obtain the macrostructures, either before or after the porous inorganic material is hydrothermally treated with a structure directing agent to convert at least a portion of such porous inorganic material to a crystalline molecular sieve composition. The resulting macrostructure is composed of particles of the crystalline molecular sieve composition.

Abstract: A process and catalyst are provided for dehydrogenating a hydrocarbon feedstock and producing an olefinic product. The process comprises contacting the feedstock at dehydrogenation conditions with a dehydrogenation catalyst comprising from about 0.01 weight percent to about 5.0 weight percent of a platinum group metal, from about 0.02 weight percent to about 10.0 weight percent of zinc, and a support component comprising borosilicate and an alkali metal.

Abstract: A noble metal hydrocracking catalyst which has high selectivity for naphtha range products is provided. The hydrocracking catalyst comprises:a) from about 70 to about 90 weight percent of a Y zeolite, based on the catalyst having a silica to alumina mole ratio of from about 4.8 to less than 6.0, a unit cell constant within the range of about 24.50 to about 24.57, a Na.sub.2 O level of less than or equal to about 0.2 weight percent;b) from about 10 to about 30 weight percent, based on the catalyst of an alumina having a mercury intrusion pore volume within the range from about 0.55 to about 0.85 cc/g; andc) from about 0.5 to 1 weight percent, based on the catalyst of a noble metal; wherein said hydrocracking catalyst have a dispersivity of the noble metal of equal or greater than about 50% by hydrogen chemisorption measurement, a surface area of greater than or equal to 700 m.sup.2 /g by BET surface area measurement, a compacted bulk density within the range of from about 0.40 to 0.

Abstract: A polymer modifying agent for use in increasing the shelf life of natural rubber. The polymer modifying agent consists of a zeolite, a high molecular weight fatty acid, a starch, a catalyst, and rubber processing oil and aliphatic resin. The compound bonds with the rubber, particularly the polymer chains of the rubber being encapsulated by the zeolite, preventing the aging effect caused by oxidation and light. The compound also acts to disperse the silica evenly throughout the rubber. The inventive compound is also composed of components that are non-toxic. A method of blocking the effects of premature curing of rubber is also provided. The method includes a step of adding the inventive compound to the rubber.

Abstract: Binderless particles of zeolite L of very high mechanical strength are prepared by a process which comprises forming a mixture by reacting substantially binderless particles of zeolite L, preferably as shaped particles such as extrudates, with an aqueous alkaline solution containing sources of alkali metal, at least 50 mole % of which is potassium, and aluminium to obtain the desired particles of very high mechanical strength. The zeolite L thus obtained can form part of a dehydrocyclisation and/or isomerisation catalyst.

Abstract: A catalyst for the preparation of benzene, toluene and xylene from C.sub.9.sup.+ heavy aromatics consists of zeolite ZSM-5 and .gamma.- or .eta.-Al.sub.2 O.sub.3 as carrier, Re, Sn and Pt or Pd supported on the carrier. Under the conditions of 350.degree.-450.degree. C., 0.5-3.5 MPa, a WHSV of 1-5 h.sup.-1 and a H.sub.2 /HC ratio (v/v) of 500-1200, the catalyst achieves high activity and stability as well as low hydrogen consumption.

Abstract: The invention relates to an improvement in the method for synthesis of crystalline aluminosilicate zeolites, such as ZSM-10, whose synthesis requires or is improved by one or more periods of gel aging. The gel aging step is replaced by a continuous increase in temperature to the final crystallization temperature.

Abstract: Silica-bound extruded zeolites may be converted into binder-free zeolite aggregates by aging the zeolite in an aqueous ionic solution which contains hydroxy ions such that the initial molar ratio of OH.sup.- :SiO.sub.2 is up to 1.2 and which causes the silica binder to be converted substantially to zeolite of the type initially bound. Such extrudates have excellent mechanical strength and show advantageous properties such as adsorption comparable with non-extruded zeolite powder.

Abstract: Binderless zeolite L particles are prepared by a method in which particles are formed from silica and from 0 to 95 wt % preformed zeolite L crystallites, and the particles are thereafter reacted with an alkaline solution comprising a source of alumina to convert the silica binder to zeolite L. These particles may comprise cylindrical zeolite L crystallites with a mean diameter of at least 0.05 micron in a zeolite L matrix and may be used as catalyst. Also acyclic hydrocarbons are dehydrocyclized and/or isomerized by contacting them at a temperature of from 370.degree. C. to 600.degree. C. with this catalyst incorporating at least one Group VIII metal having dehydrogenating activity to convert at least part of the acyclic hydrocarbons into aromatic hydrocarbons.

Abstract: Zeolites having a pore diameter comprised within the range of from 5 to 12 .ANG. are bonded with amorphous oligomeric silica, by dispersing them in an aqueous solution of silica and alkylammonium hydroxide, and submitting the obtained suspension to a quick drying.

Abstract: Binderless zeolite L particles are prepared by a method in which particles are formed from silica and from 0 to 95 wt % preformed zeolite L crystallites, and the particles are thereafter reacted with an alkaline solution comprising a source of alumina to convert the silica binder to zeolite L. These particles may comprise cylindrical zeolite L crystallites with a mean diameter of at least 0.05 micron in a zeolite L matrix and may be used as catalyst. Also acyclic hydrocarbons are dehydrocyclized and/or isomerized by contacting them at a temperature of from 370.degree. C. to 600.degree. C. with this catalyst incorporating at least one Group VIII metal having dehydrogenating activity to convert at least part of the acyclic hydrocarbons into aromatic hydrocarbons.

Abstract: A vapor exchange medium comprises a multiplicity of porous desiccant particles and a binder holding the particles together to form a solid shape. The binder includes a multiplicity of substantially spherical, covalently-bonded silica particles derived from a silica sol which are small enough to ensure sufficient covalent bonding of the silica particles to maintain the structural integrity of the vapor exchange medium, yet large enough relative to the pore size of the desiccant particles such that the silica particles do not materially adversely affect the adsorption properties of the desiccant particles. The vapor exchange medium has an isotherm separation factor of 0.07 to 0.1 The vapor exchange medium may be impregnated into a fibrous carrier to form a heat exchange element or device. Apparatus for making the a exchange device is also disclosed.

Abstract: The invention relates to a crystalline zeolite-like gallosilicate having an atomic ratio of Si/Ga in the outer crystalline surface that is not larger than the average Si/Ga ratio for the whole of the crystal. The invention also relates to a method of making such a gallosilicate comprising the hydrothermal crystallization of a strictly inorganic reaction mixture having the following molar ratios: SiO.sub.2 /Ga.sub.2 O.sub.3 .gtoreq.5; OH.sup.- /SiO.sub.2 =0.05-1.0; and H.sub.2 O/SiO.sub.2 =10-1,000. The invention further relates to the above-described method wherein said reaction mixture is prepared by adding an aged gel to a first mixture, the first mixture preferably having a composition with the following molar ratios: SiO.sub.2 /Ga.sub.2 O.sub.3 .gtoreq.5; OH.sup.- /SiO.sub.2 =0.05 to 1.0; and H.sub.2 O/SiO.sub.2 =20 to 100.

Abstract: A process for producing a spherical zeolite catalyst is disclosed, which comprises dropping a zeolite-containing alumina sol into a surfactant-containing oil phase from a dropping opening directly or through air to thereby form spherical droplets of the sol, and then allowing the droplets to gel in an aqueous alkaline solution phase underlying the oil phase and withdrawing the thus gelled droplets, said dropping of the sol being conducted while the dropping opening is being impulsed to thereby impart a spherical and uniform shape to the resulting zeolite particles containing alumina as a binder, and a novel apparatus therefor.

Abstract: A method for synthesizing crystalline zeolites requiring a reaction mixture for crystallization thereof which contains Boron Beta Zeolite as an active source of silicon oxide and boron oxide.

Abstract: A process for the production of silica-bound zeolite granulates is disclosed, wherein zeolite to be formed into a granulate is mixed with silica sol. The process is carried out by adding aqueous alkali metal silicate to the silica sol immediately before the silica sol is mixed with the solid zeolite to be granulated. By the described process, granulates of various grain sizes can be obtained, and the resultant granulates can have a narrow grain size distribution.

Abstract: A process for making self-bound monolithic bodies of chabazite by mixing finely divided chabazite and a sodium aluminosilicate gel into monolithic bodies, the gel having a molar ratio of silica to aluminum between 1.0 and 1.5 and a molar ratio of sodium to silica from 0.35 to 0.55, and heating the monolithic bodies in the presence of water to convert the gel to additional chabazite.

Abstract: An attrition resistant catalytic cracking catalyst is prepared by spray drying an aqueous slurry containing a molecular sieve having cracking activity, a clay such as kaolin, a silica sol and aluminum chlorhydroxide. The resultant catalyst has a high attrition resistance as compared to commercially available cracking catalysts.

Abstract: An element for adsorbing one or more active gases in an inert gas to obtain an inert gas such as air containing an inert gas such as air containing an ultra-low concentration active gas such as water vapor. The element is produced by laminating low density papers composed of inorganic fiber to form a matrix in the form of a gas adsorbing element having numerous small channels penetrating through opposite surfaces, impregnating the matrix with water glass in which synthesized zeolite powder is dispersed, and soaking the matrix in aqueous solution of aluminum salts, magnesium salts or calcium salts, and so on, to form metal silicate hydrogel on the paper and in the apertures between fibers of papers, and washing and drying the matrix and the metal silicate hydrogel to obtain the element. The main constituent of the element being synthesized zeolite and metal silicate aerogel deposited on the inorganic fiber matrix.

Abstract: Disclosed is a hydrocracking process wherein the feedstock is contacted in a first reaction zone with a first reaction zone catalyst comprising a nickel component and a tungsten component deposed on a support component consisting essentially of an alumina component and a crystalline molecular sieve component. The effluent from the first reaction zone effluent is then contacted in a second reaction zone with a second reaction zone catalyst comprising a molybdenum component deposed on a support component comprising an alumina component and a crystalline molecular sieve component.

Abstract: An isomerization catalyst is prepared by a novel method of incorporating magnesium into a crystalline aluminosilicate. The catalyst comprises an alumina matrix, a magnesium-containing zeolite, and a Group VIII metal component. It has been found that the method of magnesium addition can dramatically affect the selectivity to para-xylene, as measured by the loss of C.sub.8 aromatics due to undesirable side-reactions during the isomerization of C.sub.8 aromatics. The method of the instant invention involves addition of the magnesium to a hydrogel comprising pseudo-boehmite and a zeolite.

Abstract: The present invention relates to a catalyst for the selective decomposition of cumene hydroperoxide, composed of zeolite crystals wherein a portion of the silicon atoms in the crystal lattice of silica is replaced by Al and B. The zeolite crystals are bonded to each other by a siliceous bonding agent which allows the catalyst to assume the shape of mechanically stable microspheres.The invention relates also to a process in which the catalyst is used, and to the related operating conditions.