Crystalline Aluminosilicate Patents (Class 585/481)
-
Patent number: 11673847Abstract: The invention relates to a process for combined ethylbenzene reforming and xylene isomerisation comprising contacting a hydrocarbon feedstock containing ethylbenzene and xylene with a catalyst comprising a catalyst carrier and one or more metal(s) supported on the catalyst carrier, wherein the catalyst carrier is an extrudate comprising (i) a ZSM-48 and/or EU-2 type zeolite and (ii) an alumina binder, the extrudate having a shape with a C/A value of at least 3, where C is the circumference of the extrudate and A is the cross-sectional area of the extrudate. The metal may be platinum and the alumina may be a wide-pore alumina. The process displays high conversion rates whilst maintaining low levels of side-product formation.Type: GrantFiled: December 19, 2019Date of Patent: June 13, 2023Assignee: SHELL USA, INC.Inventors: Erik Zuidema, Donald Paul Church, Daniël Banen, Henriette Siegers
-
Patent number: 11492311Abstract: The present invention relates to a device and a process for converting aromatic compounds, wherein: methyl-substituted aromatic compounds are extracted from a hydrocarbon feedstock (2) comprising aromatic compounds having at least 8 carbon atoms in an extraction unit (1), to produce at least one effluent enriched in methyl-substituted aromatic compounds (3A, 3B) and an effluent depleted in methyl-substituted aromatic compounds (4); and C2+ alkyl chains of the aromatic compounds of the depleted effluent (4) are converted into methyl groups in a hydrogenolysis unit (5) placed downstream of the extraction unit (1), to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds (7).Type: GrantFiled: December 13, 2019Date of Patent: November 8, 2022Assignee: IFP Energies nouvellesInventors: Vincent Coupard, Alexandre Pagot, Vanessa Vincent-Genod
-
Patent number: 11141718Abstract: Methods for producing supported catalysts containing a transition metal and a bound zeolite base are disclosed. These methods employ a step of washing the bound zeolite base in the presence of an alkali metal, prior to impregnating the bound zeolitic support with the transition metal. Alkali metals such as potassium and cesium may be used.Type: GrantFiled: January 18, 2019Date of Patent: October 12, 2021Assignee: Chevron Phillips Chemical Company, LPInventors: Ryan W. Snell, Xianghong Hao
-
Patent number: 11059034Abstract: Process for dealkylation of alkylaromatic compounds which process comprises contacting an alkylaromatic feedstock with i) a first catalyst comprising a) a carrier comprising of from 20 to 70 wt. % of refractory oxide binder and of from 30 to 80 wt. % of dealuminated ZSM-5 having a crystallite size of from 500 to 10,000 nm and a silica to alumina molar ratio (SAR) of from 20 to 100; b) of from 0.001 to 5 wt. % metal chosen from the group consisting of Groups 6, 9 and 10; and optionally c) up to 0.5 wt. % of a Group 14 metal, and ii) a subsequent catalyst comprising a) a carrier comprising of from 20 to 70 wt. % of refractory oxide binder and of from 30 to 80 wt. % of ZSM-5 having a crystallite size of from 3 to 100 nm and a SAR of from 20 to 200; b) of from 0.001 to 5 wt. % of metal chosen from the group consisting of Groups 6, 9 and 10; and optionally c) up to 0.5 wt. % of a Group 14 metal.Type: GrantFiled: October 4, 2017Date of Patent: July 13, 2021Assignee: Shell Oil CompanyInventors: Hong-Xin Li, Gisela Sabater Pujadas, Ingrid Maria Van Vegchel, Yuriy Yanson
-
Patent number: 10906851Abstract: Para-xylene is separated from a mixture of xylenes and ethylbenzene by a separation process. An ortho-selective adsorbent is used to reduce the ortho-xylene concentration of the xylenes, prior to contact of the xylenes and ethylbenzene with a para-selective adsorbent. The stream rich in ortho-xylene may be isomerized in the liquid phase to increase the amount of para-xylene therein. The para-xylene-depleted stream may be treated in the vapor phase to remove the ethylbenzene and then subjected to isomerization in the liquid phase to produce a stream having a higher than equilibrium amount of para-xylene.Type: GrantFiled: February 9, 2017Date of Patent: February 2, 2021Assignees: EXXONMOBIL CHEMICAL PATENTS INC., GEORGIA TECH RESEARCH CORPORATTONInventors: Meha Rungta, Robert G. Tinger, Jeevan S. Abichandani, Dana L. Pilliod, John R. Porter, Anthony Go, Sankar Nair, Ke Zhang
-
Patent number: 10865169Abstract: Processes and apparatuses for producing a C8 aromatic isomer product are provided. The process comprises introducing a reformate stream comprising aromatic hydrocarbons to a reformate splitter column to provide a plurality of streams. One or more streams comprising at least one stream from the plurality of streams is passed to a reformate upgrading unit to obtain an upgraded reformate stream. The upgraded reformate stream is passed to an aromatics stripper column to provide an aromatics stripper sidedraw stream comprising C8 aromatic hydrocarbons. The aromatics stripper sidedraw stream is passed to a xylene separation unit to provide the C8 aromatic isomer product and a raffinate product stream. At least a portion of the raffinate product stream is processed in a liquid phase isomerization unit to obtain an isomerized stream.Type: GrantFiled: May 17, 2017Date of Patent: December 15, 2020Assignee: UOP LLCInventors: Joseph A. Montalbano, Patrick C. Whitchurch, Gregory R. Werba, Ian G. Horn
-
Patent number: 10799852Abstract: The present invention relates to a method for converting a feed mixture comprising an aromatic C8 mixture of xylenes and ethylbenzene in which the para-xylene content of the xylene portion of the feed is less than equilibrium to produce a product mixture of reduced ethylbenzene content and a greater amount of para-xylene, which method comprises contacting the feed mixture at conversion conditions with a first catalyst having activity for the conversion of ethylbenzene, and with a second catalyst having activity for the isomerization of a xylene.Type: GrantFiled: October 27, 2016Date of Patent: October 13, 2020Assignee: BP Corporation North America Inc.Inventors: Philip Nubel, Jeffrey Amelse
-
Patent number: 10596560Abstract: A process is described for preparing a catalyst comprising at least one zeolite with a modified EUO structure type, at least one matrix and at least one metal from group VIII of the periodic classification of the elements. Said catalyst is used in a process for the isomerization of an aromatic feed comprising at least one compound containing eight carbon atoms per molecule.Type: GrantFiled: June 30, 2014Date of Patent: March 24, 2020Assignee: IFP Energies nouvellesInventors: Matthieu Lagauche, Laure Brandhorst, Christophe Bouchy
-
Patent number: 10479742Abstract: The field of this claimed subject matter generally relates to liquid phase isomerization technology. More specification, the field relates to liquid phase isomerization in complete absence of hydrogen which eliminates the need for gas-liquid separation at the reactor outlet. Even in the absence of the hydrogen, the catalyst demonstrates a stable isomerization performance with a paraxylene to xylene ratio of about 23 wt % in the product stream.Type: GrantFiled: April 13, 2017Date of Patent: November 19, 2019Assignee: UOP LLCInventors: Ashish Suresh Bambal, Gregory B. Kuzmanich, Patrick C. Whitchurch
-
Patent number: 10392318Abstract: The present invention provides a modified composite molecular sieve, and a preparation method and an application of the modified composite molecular sieve. The modified composite molecular sieve comprises SiO2 and a composite molecular sieve that comprises molecular sieve MCM-22 and crystalline molecular sieve selected from at least one of ZSM-22, ZSM-23 and ZSM-48, wherein, the molecular sieve MCM-22 covers around the crystalline molecular sieve. The present invention further provides a catalyst and an application of the catalyst. The catalyst comprises a carrier and a noble metal loaded on the carrier, wherein, the carrier comprises a modified composite molecular sieve that is the modified composite molecular sieve provided in the present invention or the modified composite molecular sieve obtained with the method provided in the present invention.Type: GrantFiled: November 9, 2016Date of Patent: August 27, 2019Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, FUSHUN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC CORP.Inventors: Huiqing Xu, Quanjie Liu, Liming Jia, Wei Wang
-
Patent number: 10265688Abstract: A process and catalyst system is disclosed for producing para-xylene from a C8 hydrocarbon mixture comprising ethylbenzene and at least one xylene isomer other than para-xylene. The process modifies the conventional process by operating with a higher weight hourly space velocity, lower pressure and lower hydrogen partial pressure, which allows production of on-specification benzene product without penalty with respect to ethylbenzene conversion, para-xylene approach to equilibrium or xylene losses. The catalyst system comprises a first catalyst bed comprising a first zeolite having a constraint index from 1 to 12 and an average crystal size from 0.1 to 1 micron and a platinum hydrogenation component, and a second catalyst bed comprising a second zeolite having a constraint index ranging from 1 to 12 and an average crystal size of less than 0.1 micron and a rhenium hydrogenation component.Type: GrantFiled: July 28, 2016Date of Patent: April 23, 2019Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michel Molinier, Hari Nair, Xiaobo Zheng
-
Patent number: 10144006Abstract: A catalyst system is disclosed for producing para-xylene from a C8 hydrocarbon mixture comprising ethylbenzene and at least one xylene isomer other than para-xylene. The catalyst system comprises a first catalyst bed and a second catalyst bed. The first catalyst bed comprises a first zeolite and a rhenium hydrogenation component. The first zeolite has a constraint index from 1 to 12, an average crystal size from 0.1 to 1 micron and has been selectivated to have an ortho-xylene sorption time of greater than 1200 minutes based on its capacity to sorb 30% of the equilibrium capacity of ortho-xylene at 120° C. and an ortho-xylene partial pressure of 4.5±0.8 mm of mercury. The second catalyst bed comprises a second zeolite and a rhenium hydrogenation component. The second zeolite has a constraint index ranging from 1 to 12 and an average crystal size of less than 0.1 micron.Type: GrantFiled: July 17, 2015Date of Patent: December 4, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jane C. Cheng, Xiaobo Zheng, Hari Nair
-
Patent number: 10053403Abstract: Disclosed are catalyst compositions and their use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a zeolite which comprises a MOR framework structure and a MFI and/or MEL framework structure, (b) at least one first metal of Group 10 of the IUPAC Periodic Table, and (c) optionally at least one second metal of Group 11 to 15 of the IUPAC Periodic Table. In one or more embodiments, the MOR framework structure comprises mordenite, preferably a mordenite zeolite having small particle size. The MFI framework structure preferably comprises ZSM-5, and the MEL framework structure preferably comprises ZSM-11.Type: GrantFiled: October 20, 2017Date of Patent: August 21, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Wenyih Frank Lai, Christine N. Elia, Nicholas S. Rollman, Joshua I. Cutler
-
Patent number: 9950972Abstract: Apparatuses and methods are provided for forming C8 aromatic streams with selected amounts of C9 aromatics. In one embodiment, a method for forming a C8 aromatic stream with a selected amount of C9 aromatics includes fractionating a hydrocarbon stream including C8 and C9 aromatics into a sidedraw fraction and a bottom fraction. The sidedraw fraction includes a portion of the C8 aromatics and a portion of the C9 aromatics. The bottom fraction includes remaining C8 aromatics and C8+ hydrocarbons. The method further includes fractioning the bottom fraction and forming a heavy overhead fraction including the remaining C8 aromatics. Also, the method includes combining the sidedraw fraction and the heavy overhead fraction to form a combined stream having a C9 aromatics composition of from about 0.1 wt % to about 5 wt % about 2 wt % of a total weight of the combined stream.Type: GrantFiled: September 27, 2013Date of Patent: April 24, 2018Assignee: UOP LLCInventors: Rajeswar Gattupalli, Jason T. Corradi, Gregory Werba, Patrick Whitchurch
-
Patent number: 9828311Abstract: A process for isomerizing an aromatic cut containing at least one aromatic compound containing eight carbon atoms per molecule is described, comprising bringing said cut into contact with at least one catalyst comprising at least one metal from group VIII of the periodic classification of the elements, at least one zeolitic support comprising a zeolite selected from zeolites with structure type EUO and MOR, used alone or as a mixture, and at least one matrix, such that the specific surface area of the matrix in the zeolitic support of said catalyst is in the range 5 to 200 m2/g.Type: GrantFiled: November 20, 2012Date of Patent: November 28, 2017Assignee: IFP ENERGIES NOUVELLESInventors: Emmanuelle Guillon, Eric Sanchez
-
Patent number: 9598332Abstract: In a process for producing para-xylene, a feed comprising a mixture of xylene isomers, olefinic unsaturated contaminants and oxygenate contaminants is supplied to a para-xylene recovery unit to recover para-xylene and produce a para-xylene depleted residual stream. The para-xylene depleted residual stream is then contacted with a xylene isomerization catalyst in a xylene isomerization zone under liquid phase conditions effective to isomerize xylenes and produce an isomerized product having a higher para-xylene content than the para-xylene depleted residual stream. The isomerized product is then recycled to the para-xylene recovery unit. At least one of the feed, the para-xylene depleted residual stream and the isomerized product is contacted with a solid acid catalyst in a treatment zone under conditions effective to reduce the level of olefinic unsaturated contaminants and oxygenate contaminants therein and produce a treated stream.Type: GrantFiled: November 5, 2014Date of Patent: March 21, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: Timothy P. Bender, Robert G. Tinger
-
Patent number: 9394221Abstract: By selectively hydrogenating a feedstock containing two or more hydrocarbons selected from the group consisting of tricyclic aromatic hydrocarbons having an anthracene skeleton and tricyclic aromatic hydrocarbons having a phenanthrene skeleton to 1,2,3,4,5,6,7,8-octahydro bodies using, as a hydrogenation catalyst, a catalyst containing two or more active metals selected from the group consisting of nickel, molybdenum, cobalt, and tungsten and then, by oxidizing the 1,2,3,4,5,6,7,8-octahydro body using a metal oxide, a benzenetetracarboxylic acid can be efficiently manufactured.Type: GrantFiled: March 21, 2012Date of Patent: July 19, 2016Assignee: JX NIPPON OIL & ENERGY COMPANYInventors: Ryoji Ida, Shinichiro Yanagawa
-
Patent number: 9309170Abstract: This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene which contain a substantial concentration of nonaromatics using a catalyst system which features the ability to both convert nonaromatics and to obtain an improved yield of para-xylene from the mixture relative to processes of the known art.Type: GrantFiled: October 11, 2012Date of Patent: April 12, 2016Assignee: UOP LLCInventors: Paula L. Bogdan, James A. Johnson, Gregory J. Gajda, Patrick C. Whitchurch, Stanley J. Frey, Wolfgang A. Spieker
-
Patent number: 9266794Abstract: The invention concerns a xylenes isomerization process for the production of equilibrium or near-equilibrium xylenes from a feedstream comprising phenol and/or styrene.Type: GrantFiled: October 23, 2015Date of Patent: February 23, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: John Di-Yi Ou, Shifang L. Luo, Surbhi Jain
-
Patent number: 9260360Abstract: The invention relates to minimizing ammonia poisoning of a catalyst and to a xylene isomerization process using said catalyst.Type: GrantFiled: November 13, 2013Date of Patent: February 16, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Chunshe Cao, Jeffrey L. Andrews, Michel Molinier
-
Patent number: 9193645Abstract: The invention concerns a xylenes isomerization process for the production of equilibrium or near-equilibrium xylenes from a feedstream comprising phenol and/or styrene.Type: GrantFiled: August 7, 2013Date of Patent: November 24, 2015Assignee: ExxonMobil Chemical Patents Inc.Inventors: John Di-Yi Ou, Shifang Luke Luo, Surbhi Jain
-
Patent number: 9144793Abstract: The present invention discloses an alumina carrier for a silver catalyst, a process for preparing the alumina carrier, a silver catalyst made from the alumina carrier, and a use of the silver catalyst in the production of ethylene oxide by the oxidization of ethylene. The alumina carrier comprises alumina and promoters, as well as titanium silicate molecular sieve(s); and therefore, has an improved catalytic activity.Type: GrantFiled: December 28, 2011Date of Patent: September 29, 2015Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Jinbing Li, Xianfeng Li, Wei Lin, Qiang Lin, Jianshe Chen, Zhixiang Zhang, Shuyuan Cao, Shujuan Wang, Wujun Dai
-
Patent number: 9024102Abstract: A catalyst comprising an aluminosilicate zeolite having an MOR framework type, an acidic MFI molecular sieve component having a Si/Al2 molar ratio of less than 80, a metal component comprising one or more elements selected from groups VIB, VIIB, VIII, and IVA, an inorganic oxide binder, and a fluoride component.Type: GrantFiled: May 23, 2013Date of Patent: May 5, 2015Assignee: UOP LLCInventor: Edwin P. Boldingh
-
Publication number: 20150104364Abstract: The present disclosure is directed to processes using a new crystalline molecular sieve designated SSZ-96, which is synthesized using a 1-butyl-1-methyl-octahydroindolium cation as a structure directing agent.Type: ApplicationFiled: May 21, 2014Publication date: April 16, 2015Applicant: CHEVRON U.S.A. INC.Inventor: Saleh Ali ELOMARI
-
Publication number: 20150094510Abstract: Process and catalyst for upgrading gasoline comprising durene (1,2,4,5-tetramethylbenzene) and pseudodocumene, the process comprises hydroisomerization of durene (1,2,4,5-tetramethylbenzene) and pseudocumene (1,2,4-trimethylbenzene) contained in the gasoline in presence of a catalyst comprising a sulfided base metal supported on an acidic carrier, thereby converting durene (1,2,4,5-tetramethylbenzene) to isodurene (1,2,4,5-tetramethylbenzene) and prehnitene (1,2,3,4-tetramethylbenzene) and converting pseudocumene (1,2,4-trimethylbenzene) to mesitylene (1,3,5-trimethylbenzene).Type: ApplicationFiled: March 20, 2013Publication date: April 2, 2015Applicant: Haldor Topsøe A/SInventors: Angelica Hidalgo Vivas, Finn Joensen
-
Patent number: 8993821Abstract: 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: GrantFiled: December 18, 2012Date of Patent: March 31, 2015Assignee: UOP LLCInventors: Deng-Yang Jan, Jaime G. Moscoso, Paula L. Bogdan
-
Patent number: 8969643Abstract: A method of converting hydrocarbons requires contacting a hydrocarbon stream containing alkylated aromatic hydrocarbons with a catalyst of a phosphorus-containing pentasil zeolite in a reactor. The phosphorus-containing pentasil zeolite having a phosphorus content of 7.5% or less by weight of zeolite, a pore volume of at least 0.2 ml/g, and a 27Al MAS NMR spectrum characterized by a peak at or near 50 ppm that is greater than any other peak in said spectrum. A benzene-enriched output stream is recovered from the reactor.Type: GrantFiled: May 23, 2013Date of Patent: March 3, 2015Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Pamela Harvey, Neeta Kulkarni, Manuel Castelan
-
Patent number: 8940952Abstract: A new family of coherently grown composites of TUN and IMF zeotypes have been synthesized. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where “n” is the mole ratio of Na to (Al+E), M represents a metal or metals from zinc, Group 1, Group 2, Group 3 and or the lanthanide series of the periodic table, “m” is the mole ratio of M to (Al+E), “k” is the average charge of the metal or metals M, T is the organic structure directing agent or agents, and E is a framework element such as gallium. These zeolites are similar to TNU-9 and IM-5 but are characterized by unique compositions and synthesis procedures and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for carrying out various separations.Type: GrantFiled: November 7, 2013Date of Patent: January 27, 2015Assignee: UOP LLCInventors: Christopher P. Nicholas, Mark A. Miller
-
Patent number: 8933287Abstract: A new family of crystalline microporous silicometallophosphates designated MAPSO-64 and modified forms thereof have been synthesized. These silicometallophosphates are represented by the empirical formula R+rMm2+EPxSiyOz where R is an organoammonium cation such as ETMA+ or DEDMA+, M is an alkaline earth or transition metal cation of valence 2+, and E is a trivalent framework element such as aluminum or gallium. The MAPSO-64 compositions are characterized by a BPH framework topology and have catalytic properties for carrying out various hydrocarbon conversion processes, and separation properties for separating at least one component.Type: GrantFiled: March 25, 2014Date of Patent: January 13, 2015Assignee: UOP LLCInventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
-
Patent number: 8916738Abstract: A new family of crystalline microporous metallophosphates designated AlPO-67 has been synthesized. These metallophosphates are represented by the empirical formula R+rMm2+EPxSiyOz where R is an organoammonium cation such as the ETMA+ or DEDMA+, M is a framework metal alkaline earth or transition metal of valence 2+, and E is a trivalent framework element such as aluminum or gallium. The AlPO-67 compositions have the LEV topology and have catalytic properties for carrying out various hydrocarbon conversion processes, and separation properties for separating at least one component.Type: GrantFiled: March 25, 2014Date of Patent: December 23, 2014Assignee: UOP LLCInventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
-
Publication number: 20140364668Abstract: A process for isomerizing an aromatic cut containing at least one aromatic compound containing eight carbon atoms per molecule is described, comprising bringing said cut into contact with at least one catalyst comprising at least one metal from group VIII of the periodic classification of the elements, at least one zeolitic support comprising a zeolite selected from zeolites with structure type EUO and MOR, used alone or as a mixture, and at least one matrix, such that the specific surface area of the matrix in the zeolitic support of said catalyst is in the range 5 to 200 m2/g.Type: ApplicationFiled: November 20, 2012Publication date: December 11, 2014Applicant: IFP ENERGIES NOUVELLESInventors: Emmanuelle Guillon, Eric Sanchez
-
Patent number: 8889940Abstract: The subject invention comprises a hydrocarbon-conversion process using a zeolitic catalyst comprising very low concentrations of non-zeolitic material and featuring a gradient in crystallinity decreasing from the outer portion to the center and an intrusion pore volume of at least 0.6 cc/gram. The catalyst is particularly effective in a xylene-isomerization process comprising ethylbenzene conversion.Type: GrantFiled: November 1, 2011Date of Patent: November 18, 2014Assignee: UOP LLCInventors: Paula L. Bogdan, Hui Wang, Richard R. Willis
-
Publication number: 20140296601Abstract: An extruded C8 alkylaromatic isomerization catalyst is described. The catalyst has an average pore diameter in a range of about 110 ? to about 155 ? measured by BJH adsorption method and a pore volume less than about 0.62 cc/g measured by N2 porosimetry. A process for isomerizing a non-equilibrium C8 aromatic feed to provide an isomerized product is also described.Type: ApplicationFiled: March 29, 2013Publication date: October 2, 2014Applicant: UOP LLCInventors: Neelesh Rane, Paula Bogdan, Veronica G. Deak, Patrick Whitchurch, Karl Z. Steigleder, Marlyn A. Hamborg, Wharton Sinkler, Steven A. Bradley
-
Publication number: 20140296602Abstract: An extruded C8 alkylaromatic isomerization catalyst is described. The catalyst has an average pore diameter in a range of about 110 ? to about 155 ? measured by BJH adsorption method and a pore volume less than about 0.62 cc/g measured by N2 porosimetry. A process for isomerizing a non-equilibrium C8 aromatic feed to provide an isomerized product is also described.Type: ApplicationFiled: May 14, 2014Publication date: October 2, 2014Applicant: UOP LLCInventors: Neelesh J. Rane, Paula Bogdan, Veronica G. Deak, Patrick Whitchurch, Karl Z. Steigleder, Marlyn A. Hamborg, Wharton Sinkler, Steven A. Bradley
-
Patent number: 8835705Abstract: The process concerns ethylbenzene conversion and xylene isomerization with a catalyst pretreated by sulfiding.Type: GrantFiled: August 3, 2012Date of Patent: September 16, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Chunshe Cao, Jeffrey L. Andrews, Michel Molinier
-
Patent number: 8791313Abstract: The invention concerns a process for the isomerization of aromatic compounds containing 8 carbon atoms per molecule in the presence of a catalyst comprising at least one zeolite with structure type EUO, wherein said process is operated in the presence of water in the feed at the end of a catalyst activation period.Type: GrantFiled: June 22, 2012Date of Patent: July 29, 2014Assignee: IFP Energies NouvellesInventors: Emmanuelle Guillon, Christophe Bouchy, Eric Sanchez
-
Publication number: 20140179969Abstract: A process for preparing an alkylaromatics isomerisation catalyst comprising at least 0.01% wt of platinum on a carrier comprising of from 1 to 9 wt % of ZSM-12 and inorganic binder, which process comprises treating the carrier with an impregnation solution comprising a cationic platinum compound and having a pH of more than 9, and subsequently drying and calcining the impregnated carrier at a temperature of from 200 to 420° C.; and a process for the isomerisation of alkylaromatics with the help of catalyst thus obtained.Type: ApplicationFiled: November 16, 2011Publication date: June 26, 2014Inventors: Nicoleta Cristina Nenu, Pelgrim Bart
-
Publication number: 20140171712Abstract: 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: Deng-Yang Jan, Jaime G. Moscoso, Paula L. Bogdan
-
Patent number: 8754279Abstract: A new family of aluminosilicate zeolites designated UZM-44 has been synthesized. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where “n” is the mole ratio of Na to (Al+E), M represents a metal or metals from zinc, Group 1, Group 2, Group 3 and or the lanthanide series of the periodic table, “m” is the mole ratio of M to (Al+E), “k” is the average charge of the metal or metals M, T is the organic structure directing agent or agents, and E is a framework element such as gallium. These zeolites are similar to IM-5 but are characterized by unique compositions and synthesis procedures and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for carrying out various separations.Type: GrantFiled: December 11, 2013Date of Patent: June 17, 2014Assignee: UOP LLCInventors: Mark A. Miller, Christopher P. Nicholas, Stephen T. Wilson
-
Publication number: 20140155668Abstract: The invention relates to minimizing ammonia poisoning of a catalyst and to a xylene isomerization process using said catalyst.Type: ApplicationFiled: November 13, 2013Publication date: June 5, 2014Inventors: Chunshe Cao, Jeffrey L. Andrews, Michel Molinier
-
Publication number: 20140135550Abstract: A process for isomerizing an aromatic cut containing at least one aromatic compound containing eight carbon atoms per molecule, which includes bringing the aromatic cut into contact with a catalyst containing a zeolite with structure type EUO, which catalyst has been prepared by obtaining a zeolite with structure type EUO having an overall Si/Al atomic ratio in the range 5 to 45, a sodium content in the range 500 to 5000 ppm by weight, with a Na/Al ratio in the range 5% to 20% by mole, and thereafter performing the following: i) preparing a support by shaping the zeolite with a matrix such that the zeolite content is in the range 8% to 15% by weight with respect to the support; ii) depositing at least one metal from group VIII of the periodic classification of the elements onto the support or onto the zeolite; wherein the catalyst contains a final sodium content of 75 to 600 ppm by weight.Type: ApplicationFiled: November 12, 2013Publication date: May 15, 2014Inventors: Emmanuelle GUILLON, Laure BRANDHORST
-
Patent number: 8716541Abstract: The invention concerns a process for the production of paraxylene and an apparatus suitable for said process. The process separates the overhead from a xylenes re-run into a xylene-rich stream and a xylene-lean stream. The xylene-lean stream is isomerized under conditions such that the xylenes are in the liquid phase.Type: GrantFiled: September 24, 2013Date of Patent: May 6, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventor: John Di-Yi Ou
-
Patent number: 8697929Abstract: The invention concerns a xylenes isomerization process for the production of equilibrium or near-equilibrium xylenes. The process utilizes a catalyst comprising HZSM-5 or MCM-49 and process conditions including a temperature of less than 295° C. and a pressure sufficient to maintain the xylenes in liquid phase. In embodiments, the process can be operated in a continuous mode with ppm levels of dissolved H2 in the feed and in other embodiments in a cyclic mode without the H2 in feed but with periodic regenerations using a feed having low ppm levels of H2.Type: GrantFiled: April 6, 2011Date of Patent: April 15, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: John Di-Yi Ou, April D. Ross, Doron Levin, Mohan Kalyanaraman, Wenyih Frank Lai
-
Publication number: 20140066675Abstract: The invention concerns a xylenes isomerization process for the production of equilibrium or near-equilibrium xylenes from a feedstream comprising phenol and/or styrene.Type: ApplicationFiled: August 7, 2013Publication date: March 6, 2014Inventors: John Di-Yi Ou, Shifang Luke Luo, Surbhi Jain
-
Publication number: 20140066674Abstract: A new family of coherently grown composites of TUN and IMF zeotypes have been synthesized. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where “n” is the mole ratio of Na to (Al+E), M represents a metal or metals from zinc, Group 1, Group 2, Group 3 and or the lanthanide series of the periodic table, “m” is the mole ratio of M to (Al+E), “k” is the average charge of the metal or metals M, T is the organic structure directing agent or agents, and E is a framework element such as gallium. These zeolites are similar to TNU-9 and IM-5 but are characterized by unique compositions and synthesis procedures and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for carrying out various separations.Type: ApplicationFiled: November 7, 2013Publication date: March 6, 2014Applicant: UOP LLCInventors: Christopher P. Nicholas, Mark A. Miller
-
Publication number: 20140039234Abstract: A process for preparing an alkylaromatics isomerisation catalyst comprising at least 0.01% wt of platinum on a carrier comprising of from 1 to 9 wt % of ZSM-12 and inorganic binder, which process comprises treating the carrier with an impregnation solution comprising base and an anionic platinum complex which impregnation solution has a pH of from 5.5 to 8; and a process for the isomerisation of alkylaromatics with the help of catalyst thus obtained.Type: ApplicationFiled: November 16, 2011Publication date: February 6, 2014Inventors: Cristina Nicoleta Nenu, Bart Pelgrim, Ingrid Maria Van Vegchel
-
Patent number: 8629073Abstract: A catalyst is described which comprises at least one IZM-2 zeolite, at least one matrix and at least one metal selected from metals from groups VIII, VIB and VIIB, said zeolite having a chemical composition expressed as the anhydrous base in terms of moles of oxides by the following general formula: XO2:aY2O3:bM2/nO, 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 with valency n, a and b respectively representing the number of moles of Y2O3 and M2/nO; and a is in the range 0.001 to 0.5 and b is in the range 0 to 1.Type: GrantFiled: July 21, 2009Date of Patent: January 14, 2014Assignee: IFP Energies NouvellesInventors: Emmanuelle Guillon, Nicolas Cadran, Sylvie Maury, Amandine Cabiac
-
Patent number: 8609064Abstract: Disclosed are a novel NU-85 molecular sieve having a specific surface area ranging from about 405 m2/g to about 470 m2/g and a pore volume ranging from about 0.27 cm3/g to about 0.35 cm3/g, and processes for preparing the NU-85 molecular sieve.Type: GrantFiled: October 11, 2011Date of Patent: December 17, 2013Assignees: China Petroleum & Chemical Corporation, Fushun Research Institute of Petroleum and Petrochemical, SinopecInventors: Zhizhi Zhang, Xiwen Zhang, Bo Qin
-
Publication number: 20130288885Abstract: A hydrocarbon conversion catalyst composition which comprises ZSM-48 and/or EU-2 zeolite particles and refractory oxide binder essentially free of alumina in which the average aluminium concentration of the ZSM-48 and/or EU-2 zeolite particles is at least 1.3 times the aluminium concentration at the surface of the particles, processes for preparing such catalyst compositions and processes for converting hydrocarbon feedstock with the help of such compositions.Type: ApplicationFiled: October 20, 2011Publication date: October 31, 2013Inventors: László Domokos, Laurent Georges Huve, Hermanus Jongkind, Aan Hendrik Klazinga, Marcello Stefano Rigutto
-
Publication number: 20130123558Abstract: This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene which contain a substantial concentration of nonaromatics using a catalyst system which features the ability to both convert nonaromatics and to obtain an improved yield of para-xylene from the mixture relative to processes of the known art.Type: ApplicationFiled: October 11, 2012Publication date: May 16, 2013Applicant: UOP LLCInventor: UOP LLC