Zeolite Patents (Class 423/700)
-
Publication number: 20140299511Abstract: The present invention provides a modified Y-type molecular sieve, characterized by having a unit cell size of 2.420-2.440 nm; as percent by weight of the modified Y-type molecular sieve, a phosphorus content of 0.05-6%, a RE2O3 content of 0.03-10%, and an alumina content of less than 22%; and a specific hydroxyl nest concentration of less than 0.35 mmol/g and more than 0.05 mmol/g, said ? ? specific ? ? hydroxyl ? ? nest ? ? concentration = [ ( M 500 ? ° ? ? C . - M 200 ? ° ? ? C . ) - ( 17 / 9 ) × ( M 800 ? ° ? ? C . - M 500 ? ° ? ? C . ) ] × 1000 36 × ( 1 - M 200 ? ° ? ? C . ) × C ? ( Unit ? : ? mmol ? / ? g ) wherein M200° C., M500° C. and M800° C. respectively represent the weight loss percents of a sample measured at 200° C., 500° C. and 800° C., and C is the crystallinity of the sample. The modified Y-type molecular sieve has few defect in the crystal lattice.Type: ApplicationFiled: October 26, 2012Publication date: October 9, 2014Applicant: CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Yibin Luo, Li Zhuang, Minggang Li, Ying Ouyang, Xingtian Shu
-
Patent number: 8852541Abstract: Systems and methods for removing impurities from a feed fluid in a single vessel. A method generally includes, in single vessel, contacting a feed fluid passing through the vessel with a copper-based material for removing oxygen from the feed fluid; and contacting the feed fluid passing through the vessel with an adsorbent for removing at least one of water, carbon dioxide, and oxygenated hydrocarbons from the feed fluid.Type: GrantFiled: April 16, 2009Date of Patent: October 7, 2014Assignee: Univation Technologies, LLCInventors: Ronald S. Eisinger, David M. Gaines
-
Publication number: 20140286857Abstract: A method of preparing a metal containing inorganic ion exchanger in an electrochemical cell is disclosed. In one embodiment, the method comprises: (a) adding the inorganic ion exchanger to the electrochemical cell, wherein the electrochemical cell comprises a conductive electrolyte solution having a liquid phase and a solid phase; (b) depositing metal ions electrochemically into the liquid phase; (c) allowing the metal ions to deposit onto the inorganic ion exchanger during an electrochemical reaction to obtain a metal containing inorganic ion exchanger; (d) collecting the solid phase comprising the metal containing inorganic ion exchanger obtained in step (c); (e) removing remaining metal ions from the liquid phase; and (f) obtaining a substantially metal free liquid phase.Type: ApplicationFiled: March 13, 2014Publication date: September 25, 2014Applicant: BASF CORPORATIONInventors: Ahmad Dehestani, Gerald Koermer, Mukta Rai
-
Publication number: 20140283545Abstract: There is provided a water vapor adsorbent for adsorption heat pumps that has high adsorption and desorption performance and high water resistance, such as submersion resistance. The water vapor adsorbent contains a zeolite that contains at least a silicon atom, an aluminum atom, and a phosphorus atom in its framework structure and that has a framework density of 12.0 T/1,000 cubic angstroms or more and 16.0 T/1,000 cubic angstroms or less, wherein the water vapor adsorbent contains a group 11 metal of the periodic table, which constitutes 0.1% to 15% by weight of the zeolite. In the zeolite containing the group 11 metal, an ion of the group 11 metal substitutes for a Bronsted acid site, which promotes a hydrolysis reaction of the zeolite, and decreases the number of Bronsted acid sites of the zeolite, thereby improving the water resistance, such as submersion resistance, of the zeolite.Type: ApplicationFiled: October 1, 2012Publication date: September 25, 2014Applicant: MITSUBISHI PLASTICS, INC.Inventors: Haijun Chen, Takahiko Takewaki
-
Patent number: 8840931Abstract: The present invention provides a pharmaceutical composition for dehydrating, atrophying and eliminating pathological tissues comprising inorganic polymeric ferric salt and/or inorganic polymeric ferric salt composite as its active ingredients, in which the inorganic polymeric ferric salt is polyferric sulfate, and the inorganic polymeric ferric salt composite is selected from a group consisting of poly-silicate ferric salts, polyphosphate ferric salts and their analogue. A surprising medical effect can be reached by treating pathological tissues with the pharmaceutical composition of the present invention which will make the treated pathological tissues dehydrated, atrophied, and absorbed or sloughed off.Type: GrantFiled: October 14, 2011Date of Patent: September 23, 2014Inventors: Kuok Leong Tam, Io cheng Tam, Hio man Tam
-
Publication number: 20140271452Abstract: Described are catalyst materials and catalytic articles comprising a metal exchanged SAPO material comprising a plurality of substitutional sites consisting essentially of Si(4Al) sites and substantially free of Si(0Al) sites. The materials and catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Applicant: BASF CorporationInventors: Subramanian Prasad, Martin C. Wende, Jaya L. Mohanan
-
Patent number: 8835342Abstract: One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.Type: GrantFiled: April 22, 2005Date of Patent: September 16, 2014Assignee: Massachusetts Institute of TechnologyInventors: Jackie Y Ying, Javier Garcia-Martinez
-
Patent number: 8835341Abstract: A method for removing tightly bound sodium from a zeolitic support comprising contacting the support with a sodium specific removal agent to produce a treated support. A method comprising providing an aromatization catalyst comprising a treated support, and contacting the aromatization catalyst with a hydrocarbon feed in a reaction zone under conditions suitable for the production of an aromatic product. A catalyst support comprising an L-zeolite having less than 0.35 wt. % sodium.Type: GrantFiled: September 7, 2011Date of Patent: September 16, 2014Assignee: Chevron Phillips Chemical Company LPInventor: Gyanesh P. Khare
-
Publication number: 20140251135Abstract: A carbon dioxide adsorbent may include a chabazite zeolite containing an alkali metal ion or an alkaline earth metal ion. The chabazite zeolite may have a Si/Al mole ratio of about 1 to about 9.9. The carbon dioxide adsorbent may be included in a carbon dioxide capture module. The carbon dioxide adsorbent may also be used in a method of separating carbon dioxide.Type: ApplicationFiled: February 17, 2014Publication date: September 11, 2014Applicants: INHA-INDUSTRY PARTNERSHIP INSTITUTE, SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyuk Jae KWON, Soon Chul KWON, Hyun Chul LEE, Wha Seung AHN, Seung Hwan HONG
-
Publication number: 20140256892Abstract: An olefin oligomerization process comprises contacting an olefin feed with a catalyst composition. The catalyst composition includes a crystalline aluminosilicate having FAU, EMT or a combination of FAU and EMT framework type. The crystalline aluminosilicate has cobalt and at least one alkaline earth metal selected from calcium, barium, strontium and mixtures thereof within its intra-crystalline cages.Type: ApplicationFiled: September 18, 2012Publication date: September 11, 2014Inventors: Georges M. K. Mathys, Geraldine Tosin, Johan A. Martens, Marcel J. G. Janssen, Joris Franken
-
Publication number: 20140255297Abstract: A method for the preparation of zeolites from non-fused fly ash includes the steps of preparing an aqueous alkali hydroxyl solution and mixing the solution with the non-fused fly ash to create an aqueous alkali hydroxyl fly ash mixture, subjecting the mixture to ultrasonication and recovering the zeolites. The method may include the step of centrifuging the aqueous alkali hydroxyl fly ash mixture and washing the solid synthetic products (zeolites).Type: ApplicationFiled: August 8, 2012Publication date: September 11, 2014Applicants: UNIVERSITY OF THE WESTERN CAPE, ESKOM HOLDINGS SOC LTD.Inventors: Nicholas Mulei Musyoka, Leslie Petrik, Erich Hums
-
Publication number: 20140255805Abstract: A desulfurizer material for desulfurizing fuel supplied to a fuel cell system, the desulfurizer material comprising one or more manganese oxide materials having an octahedral molecular sieve (OMS) structure, and the desulfurizer material being resistant to moisture and being capable of removing organic sulfur containing compounds and H2S. The desulfurizer material is used in a desulfurizer assembly which is used as part of a fuel cell system.Type: ApplicationFiled: March 6, 2013Publication date: September 11, 2014Applicant: FUELCELL ENERGY, INC.Inventors: Jin-Yun Wang, Mohammad Farooque, David Xu, Zachary Sanders
-
Publication number: 20140249023Abstract: An optimal material composition that allows for the purification of at least one feed component from a fluid feed stream such that the adsorbent has an oxygen capacity of at least 10 weight percent is described. More specifically, the material is an adsorbent for purification of a fluid feed stream having an oxygen to argon selectivity greater than or equal to a ratio of 3:1 and an oxygen capacity of greater than or equal to 10 weight percent, wherein the oxygen capacity is measured at a pressure in the range of about 9-10 Torr and a temperature of 77 degrees Kelvin after 4 hours of equilibration time and wherein the oxygen to argon selectivity is obtained by dividing the oxygen capacity by the argon capacity of the adsorbent measured at a pressure in the range of about 697-700 Torr and a temperature of 87 degrees Kelvin after 8 hours of equilibration time. The adsorption capacities are measured on a pure component basis.Type: ApplicationFiled: March 1, 2013Publication date: September 4, 2014Inventors: Philip A. Barrett, Steven J. Pontonio, Neil A. Stephenson, Persefoni E. Kechagia
-
Patent number: 8822574Abstract: The invention relates to a wood material product and a method for producing wood material products from particles containing lignocellulose and adhesives containing formaldehydes, which are intermixed and fed to a forming process after mixing. A zeolite is added to the mixture of adhesives and particles containing lignocellulose.Type: GrantFiled: April 30, 2010Date of Patent: September 2, 2014Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Jan Gunschera, Volker Thole, Doreen Markewitz, Katrin Bokelmann, Thangaraj Selvam, Annett Halbhuber
-
Publication number: 20140241982Abstract: A zeolite material is provided having non-boron heteroatoms on the external surface of the zeolitic material lattice framework and B heteroatoms, or silanols created from boron hydrolysis, throughout the remainder of the lattice framework. The lattice framework of the zeolite material comprises large pore 12 member ring or larger openings at the external surface of the framework, and 10 member ring or smaller openings beneath the external surface large pore openings. Also provided is a process for preparing the zeolitic material.Type: ApplicationFiled: February 20, 2014Publication date: August 28, 2014Inventors: Stacey I. Zones, Alexander S. Katz, Isao Ogino, Xiaoying Ouyong
-
Publication number: 20140241980Abstract: The present invention is directed to an alumino-borosilicate SSZ-57 zeolite having enhanced large pore selectivity. The alumino-borosilicate SSZ-57 zeolite of the present invention is characterized as having substantially all of its aluminum atoms located within regions of the zeolite structure which form the 12 ring channels.Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: Chevron U.S.A. Inc.Inventors: Stacey Ian Zones, Cong-Yan Chen, Annabelle Benin
-
Publication number: 20140241981Abstract: This disclosure provides methods of making microporous crystals and microporous crystal membranes.Type: ApplicationFiled: February 28, 2014Publication date: August 28, 2014Inventors: Prabir Dutta, Michael Severance, Chenhu Sun
-
Publication number: 20140234206Abstract: A process for the preparation of a copper containing zeolitic material having CHA framework structure and a composition comprising the molar ratio (n YO2):X2O3 wherein X is a trivalent element, preferably Al, Y is a tetravalent element, preferably Si, and wherein n is preferably at least 20, the process comprising the preparation of an phosphor-free aqueous solution containing at least one source for X2O3 and at least one source for YO2, at least one structure directing agent suitable for the preparation of a zeolitic material having CHA framework structure, and at least one Cu source, and the process further comprising the hydrothermal crystallization of said aqueous solution obtaining a suspension containing the copper containing zeolitic material having CHA framework structure.Type: ApplicationFiled: March 18, 2014Publication date: August 21, 2014Applicant: BASF SEInventors: Natalia Trukhan, Ulrich Müller, Ivor Bull
-
Patent number: 8795626Abstract: A chabazite-type zeolite having copper and an alkali earth metal supported thereon. The alkali earth metal is preferably at least one metal selected from the group consisting of calcium, magnesium and barium. Moreover, the SiO2/Al2O3 molar ratio is preferably from 10 to 50, and the copper/aluminum atomic ratio is preferably from 0.15 to 0.25. This type of chabazite-type zeolite exhibits a higher nitrogen oxide purification rate after a hydrothermal durability treatment than those of conventional chabazite-type zeolite catalysts on which only copper is supported.Type: GrantFiled: December 27, 2011Date of Patent: August 5, 2014Assignee: Tosoh CorporationInventors: Keisuke Tokunaga, Yuuki Ito
-
Publication number: 20140196412Abstract: The invention provides a food decay odor controller which includes a mercaptan remover.Type: ApplicationFiled: January 17, 2013Publication date: July 17, 2014Applicant: Multisorb Technologies, Inc.Inventor: George E. McKedy
-
Publication number: 20140200386Abstract: A molecular sieve material designated as EMM-22 has, in its calcined form, an X-ray diffraction pattern including the following peaks in Table 1: TABLE 1 Relative Intensity d-spacing (?) [100 × I/I(o)] 11.03 ± 0.40 VS ?9.91 ± 0.20 W ?6.70 ± 0.04 VW ?4.39 ± 0.02 W ?4.06 ± 0.04 W ?3.85 ± 0.02 M ?3.37 ± 0.Type: ApplicationFiled: July 24, 2012Publication date: July 17, 2014Inventor: Allen W. Burton
-
Patent number: 8778824Abstract: This invention relates to aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 ?m. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more.Type: GrantFiled: March 6, 2012Date of Patent: July 15, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Wenyih Frank Lai, Robert E. Kay
-
Patent number: 8778171Abstract: This invention relates to hydrocracking catalysts utilizing stabilized aggregates of small primary crystallites of zeolite Y that are clustered into larger secondary particles. At least 80% of the secondary particles may comprise at least 5 primary crystallites. The size of the primary crystallites may be at most about 0.5 micron, or at most about 0.3 micron, and the size of the secondary particles may be at least about 0.8 micron, or at least about 1.0 ?m. The silica to alumina ratio of the resulting stabilized aggregated Y zeolite may be 4:1 or more. This invention also relates to the use of such catalysts in hydrocracking processes for the conversion of heavy oils into lighter fuel products. The invention is particularly suited for the selective production of diesel range products from gas oil range feedstock materials under hydrocracking conditions.Type: GrantFiled: March 6, 2012Date of Patent: July 15, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Christopher G. Oliveri, Wenyih Frank Lai, Ajit B. Dandekar, Scott J. Weigel, Jason Wu, Robert E. Kay
-
Publication number: 20140191137Abstract: An element having an immersible portion for contact with an aqueous liquid, the immersible portion having a contact surface for contact with the aqueous liquid, the contact surface configured to have strong acidity, a radiation (e.g., ultraviolet radiation) source assembly, a radiation (e.g., ultraviolet radiation) source module and a fluid (e.g., water) treatment system incorporating this element applicable to any surface in contact with fluid that is susceptible to build-up of fouling materials. The embodiments obviates or mitigates the rate of accumulation of fouling on surfaces in contact with aqueous solution, such as the protective (e.g., quartz) sleeves in an ultraviolet radiation fluid treatment system, by modifying at least a portion of the surface of those sleeves in contact with fluid (e.g., water) to have an inherent strong surface acidity.Type: ApplicationFiled: May 7, 2012Publication date: July 10, 2014Applicant: TROJAN TECHNOLOGIESInventor: William Kevin O'Keefe
-
Publication number: 20140193328Abstract: A method of producing a silicoaluminophosphate molecular sieve includes: carrying out a hydrothermal treatment on a mixture that contains a silicon source, an aluminum source, a phosphorus source, a structure-directing agent; and at least one of an inorganic magnesium salt or an organic magnesium salt or an inorganic manganese salt or an organic manganese salt at 0.001 to 0.1 mole per mole of the aluminum source.Type: ApplicationFiled: August 20, 2012Publication date: July 10, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Kanji Takaoka
-
Publication number: 20140193327Abstract: A catalyst composition is provided having a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO2 and Al2O3 in a mole ratio of about 5 to about 40. The catalyst composition is capable of NOx conversion at elevated temperatures. A catalytically active washcoat includes such catalyst compositions and one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article. Methods of reducing NOx employing the catalyst compositions are also provided.Type: ApplicationFiled: July 26, 2012Publication date: July 10, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: John L. Casci, Hai-Ying Chen, Joseph Michael Fedeyko, Jillian Elaine Collier, Raj Rao Rajaram, David Thompsett
-
Patent number: 8771639Abstract: The present invention relates to a method for preparing composites of substrate-molecular sieve, in particular, to a method for preparing a composite of substrate-molecular sieve, which comprises applying a physical pressure to molecular sieve crystals against a substrate to form a chemical bond between the molecular sieve crystal and the substrate. The present invention requiring no solvents, reactors and other equipments enables molecular sieve crystals to be stably attached to the surface of substrates through various chemical bonds, particularly ionic present invention ensures the synthesis of substrate-molecular sieve composites with enhanced attachment rate, degree of lateral close packing (DCP) and attachment strength in more time-saving and energy-saving manners. The present method works well for molecular sieve crystals with lager sizes (e.g., more than 3 ?m) with no generation of parasitic crystals.Type: GrantFiled: January 4, 2008Date of Patent: July 8, 2014Assignee: Industry-University Cooperation Foundation Sogang UniversityInventors: Kyung Byung Yoon, Jin Seok Lee, Jae Hyun Kim, Young Ju Lee, Nak Cheon Jeong
-
Patent number: 8765095Abstract: One aspect of the present invention relates to mesostructured zeolites. The invention also relates to a method of preparing mesostructured zeolites, as well as using them as cracking catalysts for organic compounds and degradation catalysts for polymers.Type: GrantFiled: September 23, 2009Date of Patent: July 1, 2014Assignee: Massachusetts Institute of TechnologyInventors: Jackie Y. Ying, Javier Garcia-Martinez
-
Patent number: 8765660Abstract: Methods for removing surfactants from polar solids are described herein. In particular, various embodiments described herein relate to the removal of surfactants from polar solids that involves contacting a surfactant-containing porous polar solid with an extraction agent comprising water, a salt, and, optionally, a polar organic compound. In certain embodiments described herein, the extraction agents are used to remove surfactants from a mesoporous zeolite.Type: GrantFiled: March 8, 2013Date of Patent: July 1, 2014Assignee: Rive Technology, Inc.Inventors: Kunhao Li, Barry Speronello
-
Patent number: 8763364Abstract: A method of treating a cold-start engine exhaust gas stream comprising hydrocarbons and other pollutants, the method comprising: flowing the exhaust gas stream over a molecular sieve bed, the molecular sieve bed comprising an alkali metal cation-exchanged molecular sieve having intersecting 10- and 12-membered ring pore channels, to provide a first exhaust stream; flowing the first exhaust gas stream over a catalyst to convert any residual hydrocarbons and other pollutants contained in the first exhaust gas stream to innocuous products to provide a treated exhaust stream; and discharging the treated exhaust stream into the atmosphere.Type: GrantFiled: April 18, 2011Date of Patent: July 1, 2014Assignee: Chevron U.S.A. Inc.Inventors: Shanmugam Palani Elangovan, Tatsuya Okubo, Stacey I. Zones, Cong-Yan Chen, Allen W. Burton, Jr.
-
Publication number: 20140179971Abstract: A catalyst for the conversion of oxygenates, such as alcohols or ethers, to olefins consists essentially of a selected SUZ-4 zeolite that has a Si/Al ratio of at least 20, preferably between 20 and 500, especially between 20 and 100. The basic SUZ-4 zeolite is prepared in a manner known per se, whereafter the Si/Al ratio is increased to the desired value. The selected SUZ-4 zeolite catalyst of the invention has a longer life time and a better product selectivity than the conventional/standard SUZ-4 zeolite catalysts.Type: ApplicationFiled: July 20, 2012Publication date: June 26, 2014Applicant: Haldor Topsøe A/SInventors: Shewangizaw Teketel, Stian Svelle, Pablo Beato
-
Patent number: 8758775Abstract: The invention is for a method of potentiating clinoptilolite, the method including the steps of: providing fresh or spent clinoptilolite; exposing the clinoptilolite to a saline solution having a sodium ion content of about 10% to liberate impurities from the clinoptilolite; and drying the washed clinoptilolite fraction to render a potentiated clinoptilolite fraction. Preferably, the clinoptilolite is exposed to the saline solution for a period of about 48 hours. The washed clinoptilolite may be dried by filtered, heated air. This allows an optimal cation exchange capacity of the clinoptilolite to be reached. The clinoptilolite has uses as a medicament for a variety of aliments.Type: GrantFiled: September 8, 2006Date of Patent: June 24, 2014Inventor: Kevin Gast
-
Publication number: 20140171667Abstract: The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc.Type: ApplicationFiled: December 30, 2013Publication date: June 19, 2014Applicant: BASF SEInventors: ANDREI-NICOLAE PARVULESCU, Ulrich Mueller, Joaquim Henrique Teles, Bianca Seelig, Philip Kampe, Markus Weber, Robert Bayer, Karsten Seidel, Peter Resch
-
Publication number: 20140170062Abstract: A porous crystalline silico-alumino-phosphate molecular sieve is described. The molecular sieve has a framework composition on an anhydrous and calcined basis expressed by an empirical formula (SixAlyPz)O2 where x is the mole fraction of Si and has a value from 0.001 to about 0.5, y is the mole fraction of Al and has a value of at least 0.01, z is the mole fraction of P has a value of at least 0.01, and x+y+z=1, where the molecular sieve is characterized as having a LTA framework with an average crystal size of less than 5 micrometers. Methods of making the molecular sieves are also described.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: UOP LLCInventor: Jaime G. Moscoso
-
Publication number: 20140171291Abstract: 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.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: UOP LLCInventors: Jaime G. Moscoso, Deng-Yang Jan
-
Publication number: 20140171713Abstract: A porous crystalline nano metallo-alumino-phosphate molecular sieve is described. The molecular sieve has a framework composition on an anhydrous and calcined basis expressed by an empirical formula (ElxAlyPz)O2 wherein El is silicon, magnesium, zinc, iron, cobalt, nickel, manganese, chromium, or combinations thereof, where x is the mole fraction of El and has a value from 0.001 to about 0.5, y is the mole fraction of Al and has a value of at least 0.01, z is the mole fraction of P has a value of at least 0.01, and x+y+z=1, where the molecular sieve is characterized as having a LEV framework and nano octahedral crystals with an average crystal size of less than 700 nm. Methods of making the molecular sieves, and methods of using the molecular sieves are also described.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: UOP LLCInventors: Jaime G. Moscoso, Deng-Yang Jan, Nicholas J. Schoenfeldt
-
Publication number: 20140161717Abstract: Methods are provided for synthesizing ZSM-58 crystals with an improved morphology and/or an improved size distribution. By controlling the conditions during synthesis of the ZSM-58 crystals, crystals of a useful size with a narrow size distribution can be generated. Additionally, by controlling the ratio of water content to silica content in the synthesis mixture, it has unexpectedly been found that ZSM-58 crystals can be formed with an improved morphology. The improved morphology can result in ZSM-58 crystals with a more uniform size across the various dimensions of the crystal, which allows for more uniform diffusion within the crystal. This is in contrast to conventionally synthesized crystals, where the size of the crystal can vary along different axes of the crystals.Type: ApplicationFiled: November 8, 2013Publication date: June 12, 2014Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Ivy D. Johnson, Nadya A. Hrycenko, Barbara Carstensen, Machteld Mertens, Brita Engels
-
Patent number: 8748684Abstract: A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 ?, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH), and water, said mixture having a solid-content in the range of from about 15 wt. % to about 50 wt. %; and (b) treating said mixture to form the desired crystalline molecular sieve with stirring at crystallization conditions sufficient to obtain a weight hourly throughput from about 0.005 to about 1 hr?1, wherein said crystallization conditions comprise a temperature in the range of from about 200° C. to about 500° C. and a crystallization time less than 100 hr.Type: GrantFiled: August 7, 2013Date of Patent: June 10, 2014Assignee: ExxonMobile Chemical Patents Inc.Inventors: Ivy D. Johnson, Wenyih Frank Lai
-
Publication number: 20140154176Abstract: A new family of crystalline microporous metallophosphates designated MAPSO-64 has been synthesized. These metallophosphates are represented by the empirical formula RrMmn+EPxSiyOz where R is an organoammonium cation such as ETMA+ or DEDMA?, M is a divalent metal such as an alkaline earth or transition metal, and E is a framework element such as aluminum or gallium. The microporous MAPSO-64 compositions BPH topology and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Applicant: UOP LLCInventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
-
Publication number: 20140154175Abstract: There is disclosed a microporous crystalline material having pore opening ranging from 3 to 5 Angstroms, where the material comprises a first metal chosen from alkali earth group, rare earth group, alkali group, or mixtures thereof, and a second metal chosen from iron, copper or mixtures thereof; and has a molar silica to alumina ratio (SAR) from 3 to 10. The microporous crystalline material disclosed herein may comprise a crystal structure having building units of double-6-rings (d6r) and pore opening of 8-rings as exemplified with framework types defined by the Structure Commission of the International Zeolite Association having structural codes of CHA, LEV, AEI, AFT, AFX, EAB, ERI, KFI, SAT, TSC, and SAV. There is also disclosed a method of selective catalytic reduction of nitrogen oxides in exhaust gas, comprising at least partially contacting the exhaust gases with an article comprising the disclosed microporous crystalline material.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Applicant: PQ CORPORATIONInventors: Hong-Xin LI, Bjorn MODEN, William E. CORMIER
-
Patent number: 8735643Abstract: The invention relates to aggregate zeolitic adsorbents based on faujasite X type zeolite powder having a low silica content and small crystals, exchanged with barium or based on faujasite X type zeolite having a low silica content and small crystals, exchanged with barium and potassium. The invention also relates to the method for preparing said aggregate zeolitic adsorbents, and also their uses for separating sugars, polyhydric alcohols, isomers of substituted toluene, cresols, or for recovering very high purity paraxylene.Type: GrantFiled: December 16, 2008Date of Patent: May 27, 2014Assignees: Cece S.A., Institut Francais du PetroleInventors: Ludivine Bouvier, Stéphane Kieger, Catherine Laroche, Philibert Leflaive, Tom Frising
-
Patent number: 8734758Abstract: A method for synthesizing a molecular sieve comprising providing a reaction mixture sufficient to synthesize the molecular sieve, maintaining the reaction mixture under crystallization conditions, monitoring at least one viscometric parameter of the reaction mixture, and determining an endpoint based on the monitoring of the at least one viscometric parameter.Type: GrantFiled: November 5, 2010Date of Patent: May 27, 2014Assignee: Chevron U.S.A. Inc.Inventors: James N. Ziemer, Tracy M. Davis, Stacey I. Zones, Adeola Ojo
-
Patent number: 8735311Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25:1 to about 1:1.Type: GrantFiled: March 8, 2013Date of Patent: May 27, 2014Assignee: BASF CorporationInventors: Ivor Bull, Wen-Mei Xue, Patrick Burk, R. Samuel Boorse, William M. Jaglowski, Gerald Stephen Koermer, Ahmad Moini, Joseph A. Patchett, Joseph C. Dettling, Matthew Tyler Caudle
-
Publication number: 20140135560Abstract: Process for preparing a modified zeolite Y which process comprises subjecting zeolite Y having a silica to alumina molar ratio of at least 10 to calcination at a temperature of from 700 to 1000° C. wherein (i) the steam partial pressure is at most 0.06 bar at a temperature of from 700 to 800° C., (ii) the steam partial pressure is at most 0.08 bar at a temperature of from 800 to 850° C., (iii) the steam partial pressure is at least 0.03 bar at a temperature of from 850 to 900° C., and (iv) the steam partial pressure is at least 0.05 bar at a temperature of from 900 to 950° C. and (v) the steam partial pressure is at least 0.07 bar at a temperature of from 950 to 1000° C.Type: ApplicationFiled: January 16, 2014Publication date: May 15, 2014Applicant: PQ CORPORATIONInventors: David Allen Cooper, Cornelius Ouwehand, Laszlo Domokos, Lay Hwa Ong
-
Patent number: 8722560Abstract: A subject for the invention is to provide a highly heat-resistant SCR catalyst which has an NOx reduction percentage of 40% or higher at 200° C. after a hydrothermal durability treatment. The invention relates to use of ?-type zeolite which has an SiO2/Al2O3 molar ratio of 20 or higher but less than 30 and a crystallite diameter before a hydrothermal durability treatment of 20 nm or larger, shows a change in crystallite through the hydrothermal durability treatment of less than 10%, and has a fluorine content lower than 0.1%. The ?-type zeolite can be crystallized from a liquid reaction mixture containing a secondary and/or a tertiary alkylamine having 5 or more carbon atoms.Type: GrantFiled: August 17, 2009Date of Patent: May 13, 2014Assignee: Tosoh CorporationInventors: Yasuyuki Takamitsu, Yukio Ito
-
Publication number: 20140128248Abstract: There is disclosed a highly crystalline, small crystal, ferrierite zeolite prepared from a gel containing a source of silica, alumina, alkali metal and a combination of two templating agents. The resulting material includes ferrierite crystals having a particle size of about or less than about 200 nm. The desired crystal size can be achieved by using a specific composition of the gel. The purity of the material and the crystal size was determined by using X-ray powder diffraction and scanning electron microscopy. The material has excellent surface area and micropore volume as determined by nitrogen adsorption.Type: ApplicationFiled: November 5, 2013Publication date: May 8, 2014Applicant: PQ CorporationInventors: Anton PETUSHKOV, Hong-Xin Li, William E. Cormier
-
Publication number: 20140120034Abstract: A catalyst is provided for converting oxygen-containing hydrocarbon into gasoline. The catalyst is made of an ammonium-ion zeolite. The oxygen-containing hydrocarbon is dehydrated with the catalyst to be converted into gasoline. The pH value of the catalyst is changed by a heat process. The catalyst which is carbon-deposited is reactivated through oxidation. Thus, life time of the catalyst is prolonged for the conversion.Type: ApplicationFiled: February 4, 2013Publication date: May 1, 2014Applicant: Atomic Energy Council-Institute of Nuclear ResearchInventor: Atomic Energy Council-Institute of Nuclear Research
-
Patent number: 8709378Abstract: A catalytic composition is particularly well suited for hydrocarbon conversion to synthesis gas at a temperature of between 800 and 1000° Celsius. The catalytic composition includes a noble metal cluster having an X-Y-Z axial mean linear dimension of between 2 and 15 Angstroms and a super cage structure surrounding the noble metal cluster. The super cage structure stabilizes the noble metal cluster against aggregation at temperatures of 1000° Celsius. A process for reforming hydrocarbon feedstock to hydrogen and carbon monoxide is also provided that conversion to greater than 80% of theoretical yield.Type: GrantFiled: January 16, 2008Date of Patent: April 29, 2014Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Ivan Chihang Lee
-
Patent number: 8704025Abstract: This disclosure relates to an EMM-12 molecular sieve having, in its as-synthesized form and in calcined form, an X-ray diffraction pattern including peaks having a d-spacing maximum in the range of 14.17 to 12.57 Angstroms, a d-spacing maximum in the range of 12.1 to 12.56 Angstroms, and non-discrete scattering between about 8.85 to 11.05 Angstroms or exhibit a valley in between the peaks having a d-spacing maximum in the range of 10.14 to 12.0 Angstroms and a d-spacing maximum in the range from 8.66 to 10.13 Angstroms with measured intensity corrected for background at the lowest point being not less than 50% of the point at the same XRD d-spacing on the line connecting maxima in the range of 10.14 to 12.0 Angstroms and in the range from 8.66 to 10.13 Angstroms.Type: GrantFiled: July 15, 2009Date of Patent: April 22, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Wieslaw J. Roth, Douglas L. Dorset, Gordon J. Kennedy, Thomas Yorke, Terry Eugene Helton
-
Patent number: 8703634Abstract: Hemostatic compositions comprising a wet layered clay (e.g., wet kaolin) and, optionally, a zeolite, as well as devices and methods of use to promote blood clotting, are provided.Type: GrantFiled: February 13, 2008Date of Patent: April 22, 2014Assignee: The Regents of the University of CaliforniaInventors: Sarah Baker, April Sawvel, Galen D. Stucky