Using Crystalline Aluminosilicate Catalyst Patents (Class 585/475)
  • Patent number: 10913043
    Abstract: This present disclosure relates to apparatuses for methylation of aromatics in an aromatics complex for producing a xylene isomer product. More specifically, the present disclosure relates to the use of riser slip reduction technology to improve the methanol feed and catalyst contacting which will improve the product yield rate.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: February 9, 2021
    Assignee: UOP LLC
    Inventor: Lev Davydov
  • Patent number: 10894755
    Abstract: A method of producing p-xylene comprising the steps of separating the reformate feed in the reformate splitter to produce a benzene stream, a combined heavy stream, a xylene stream, and a toluene stream, converting the C9+ aromatic hydrocarbons in the presence of a dealkylation catalyst in the dealkylation reactor to produce a dealkylation effluent, separating the dealkylation effluent in the dealkylation splitter to produce a C9 stream and a C10+ stream, reacting the C9 stream, the toluene stream, the benzene stream, and the hydrogen stream in the presence of a transalkylation catalyst in the transalkylation reactor to produce a transalkylation effluent, separating the p-xylenes from the xylene stream in the p-xylene separation unit to produce a p-xylene product and a p-xylene depleted stream, converting the m-xylene and o-xylene in the p-xylene depleted stream in the isomerization unit to produce an isomerization effluent.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: January 19, 2021
    Inventors: Qi Xu, Zhonglin Zhang, Raed Abudawoud
  • Patent number: 10800718
    Abstract: Disclosed herein is a process for producing para-xylene comprising the steps of: (a) contacting a feedstock comprising toluene with a first catalyst under effective vapor phase toluene disproportionation conditions to disproportionate said toluene and produce a first product comprising benzene, unreacted toluene and greater than equilibrium amounts of para-xylene; and (b) contacting a feedstock comprising C9+ aromatic hydrocarbons and benzene with a second catalyst in the presence of 0 wt. % or more of hydrogen having a 0 to 10 hydrogen/hydrocarbon molar ratio under effective C9+ transalkylation conditions to transalkylate said C9+ aromatic hydrocarbons and produce a second product comprising xylenes.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: October 13, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Todd E. Detjen, Jeevan S. Abichandani
  • Patent number: 10723630
    Abstract: A method of forming a composite zeolite catalyst includes combining a silicon source and an aqueous organic structure directing agent having a polyamino cation compound to form a silica intermediary gel, introducing an aluminum precursor to the silica intermediary gel to form a catalyst precursor gel, evaporating water in the catalyst precursor gel to form a catalyst gel, and heating the catalyst gel to form a composite zeolite catalyst particle having an intergrowth region with a mixture of both Beta crystals and ZSM-5 crystals. An associated method of making xylene includes feeding heavy reformate to a reactor, the reactor containing the composite zeolite catalyst, and producing xylene by simultaneously performing dealkylation and transalkylation of the heavy reformate in the reactor, where each composite zeolite catalyst particle is able to catalyze both the dealkylation and transalkylation reactions.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: July 28, 2020
    Assignees: Saudi Arabian Oil Company, Universitat Politecnica De Valencia, Consejo Superior De Investigaciones Cientificas
    Inventors: Mohamed Elanany, Raed Abudawoud, Avelino Corma Canos, M. Teresa Portilla Ovejero, Vicente J. Margarit Benavent, M. Teresa Navarro Villalba, M. Cristina Martinez Sanchez, Ibrahim M. Al-Zahrani, Khalid A. Al-Majnouni
  • Patent number: 10696609
    Abstract: A method of producing p-xylene, the method comprising the steps of converting the C9+ aromatic hydrocarbons and the hydrogen gas in the presence of a dealkylation catalyst to produce a dealkylation effluent, separating the dealkylation effluent to produce a carbon-nine (C9) aromatics stream, a xylene stream, and a toluene stream, separating the p-xylenes from the xylene stream in the p-xylene separation unit to produce a p-xylene product and a p-xylene depleted stream, converting the m-xylene and o-xylene in the p-xylene depleted stream in the isomerization unit to produce an isomerization effluent, reacting the C9 aromatics stream and the hydrogen stream in the presence of a transalkylation catalyst in the transalkylation reactor to produce a transalkylation effluent, separating the C6 to C9+ aromatic hydrocarbons in the isomerization effluent and the transalkylation effluent in the splitter column to produce a benzene recycle, a toluene recycle, a xylene recycle and a C9+ recycle.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: June 30, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Qi Xu, Raed Abudawoud
  • Patent number: 10472305
    Abstract: Toluene disproportionation and C9/C10 transalkylation are a significant source of xylenes in a modern aromatics complex. Methods and apparatuses for improving the energy efficiency of these disproportionation and transalkylation processes are provided.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: November 12, 2019
    Assignee: BP Corporation North America Inc.
    Inventors: Craig Colling, Brian Slusar
  • Patent number: 10450243
    Abstract: A process is provided for producing xylene by transalkylation including introducing sulfur into a reactor containing a catalyst system prior to first introduction of hydrocarbon feedstock into the reactor; introducing hydrocarbon feedstock into the reactor upon the concentration of sulfur downstream of the catalyst system meeting a predetermined sulfur breakthrough concentration; continuing sulfur introduction for a period of time after first introducing hydrocarbon feedstock into the reactor; reducing the concentration of sulfur introduced upon ?T decreasing to or below a predetermined sulfur reduction threshold; and discontinuing sulfur introduction upon ?T decreasing to or below a predetermined sulfur shutoff threshold.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: October 22, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xiaobo Zheng, Robert G. Tinger, Timothy P. Bender, Kathleen M. Keville, Jeffrey L. Andrews
  • Patent number: 10035140
    Abstract: A method of preparing a metal-doped zeolite catalyst with a modified topology (e.g. a pillared zeolite or a delaminated zeolite), and a method of using thereof in a process for converting an alkyl-aromatic hydrocarbon stream to BTX (benzene/toluene/xylene), wherein an enhanced pore topology in the metal-doped zeolite catalyst determines a selectivity to transalkylation of trimethylbenzene to xylene, which in turn leads to a higher xylene yield. Various embodiments of the method of preparing the metal-doped zeolite catalyst, and the process for converting the alkyl-aromatic hydrocarbon stream to BTX are also provided.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: July 31, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Sulaiman Saleh Al-Khattaf, Syed Ahmed Ali, Abdullah Mohammed Aitani
  • Patent number: 10016750
    Abstract: A method of producing propylene and ethylene from a butene-containing hydrocarbon stream by cracking olefin compounds in the butene-containing hydrocarbon stream in the presence of a core-shell ZSM catalyst, wherein the core-shell ZSM catalyst comprises a ZSM-5 core and a silica shell disposed thereon. Various embodiments of the method of producing propylene and ethylene, and the method of making the core-shell ZSM catalyst are also provided.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 10, 2018
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Sulaiman Al-Khattaf, Palani Arudra, Amr Abdalla
  • Patent number: 9708233
    Abstract: In a process for producing para-xylene, at least one feed comprising C6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a C7? aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. At least part of the C8 aromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the C8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xylene isomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: July 18, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michel Molinier, Kevin J. Knob, Dennis J. Stanley, Terri S. Vander Pol, Chunshe Cao, Xiaobo Zheng, Thierry LeFlour, Jacques Rault, Stephane Claudel, Isabell Prevost, Jerome Pigourier, Celia Fernandez
  • Patent number: 9162942
    Abstract: This disclosure relates to a process for regenerating a catalyst composition to improve the aging rate in subsequent cycles.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: October 20, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Jr., Julia E. Steinheider, Doron Levin, Selma S. Lawrence
  • Patent number: 9150467
    Abstract: Processes and apparatuses for preparing aromatic compounds are provided herein. In an embodiment, a process for preparing aromatic compounds includes providing a first stream that includes an aromatic component, a non-aromatic component, and a sulfur-containing component. The aromatic component and the sulfur-containing component are separated from the non-aromatic component of the first stream to form a separated aromatic stream and a raffinate stream. The separated aromatic stream includes the aromatic component and the sulfur-containing component. The raffinate stream includes the non-aromatic component. The separated aromatic stream is concurrently transalkylated and desulfurized in the presence of a catalyst that includes acid function and metal function to produce a transalkylated aromatic stream and a sulfur-containing gas stream that is separate from the transalkylated aromatic stream.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 6, 2015
    Assignee: UOP LLC
    Inventors: Jason L. Noe, Peter Kokayeff
  • Patent number: 9024102
    Abstract: 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: Grant
    Filed: May 23, 2013
    Date of Patent: May 5, 2015
    Assignee: UOP LLC
    Inventor: Edwin P. Boldingh
  • Publication number: 20150104364
    Abstract: 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: Application
    Filed: May 21, 2014
    Publication date: April 16, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Saleh Ali ELOMARI
  • Patent number: 9000247
    Abstract: A method of forming mixed xylenes from a heavy reformate using a dealkylation-transalkylation system includes the step of introducing both a heavy reformate containing methyl ethyl benzenes and tri-methyl benzenes and that is sufficiently free of toluene and a hydrogen-containing material into the dealkylation stage such that the heavy reformate and the hydrogen-containing material intermingle and contact the hydrodealkylation catalyst. The dealkylation-transalkylation system includes dealkylation, non-aromatic product gas separations and transalkylation stages. Toluene forms from the reaction of methyl ethyl benzenes and hydrogen in the presence of the hydrodealkylation catalyst. The method also includes the step of introducing a dealkylated heavy reformate into the transalkylation stage such that the dealkylated heavy reformate contacts a transalkylation catalyst, forming a transalkylation stage product mixture includes mixed xylenes.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: April 7, 2015
    Assignee: Saudi Arabian Oil Company
    Inventor: Raed Abudawoud
  • Patent number: 8993821
    Abstract: 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: Grant
    Filed: December 18, 2012
    Date of Patent: March 31, 2015
    Assignee: UOP LLC
    Inventors: Deng-Yang Jan, Jaime G. Moscoso, Paula L. Bogdan
  • Patent number: 8940952
    Abstract: 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: Grant
    Filed: November 7, 2013
    Date of Patent: January 27, 2015
    Assignee: UOP LLC
    Inventors: Christopher P. Nicholas, Mark A. Miller
  • Patent number: 8937205
    Abstract: A hydrocarbon upgrading process is described in which a hydrocarbon feed is treated in at least one of a steam cracker, catalytic cracker, coker, hydrocracker, and reformer under suitable conditions to produce a first stream comprising aliphatic and aromatic hydrocarbons. A second stream comprising C6-C9 aliphatic and aromatic hydrocarbons is recovered from the first stream and aliphatic hydrocarbons are removed from at least part of the second stream to produce an aliphatic hydrocarbon-depleted stream. The aliphatic hydrocarbon-depleted stream is then dealkylated and/or transalkylated and/or cracked (D/T/C) by contact with a catalyst under suitable reaction conditions to produce a third stream having an increased benzene and/or toluene content compared with said aliphatic hydrocarbon-depleted stream and a light paraffin by-product. Benzene and/or toluene from the third stream is then methylated with a methylating agent to produce a xylene-enriched stream.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: January 20, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Glenn C. Wood, Jesus A. Ramos, Lane L. McMorris
  • Patent number: 8933283
    Abstract: This invention relates to a petroleum refining method for producing high value-added clean petroleum products and aromatics (Benzene/Toluene/Xylene) together, by which low pollution petroleum products including liquefied petroleum gas or low-sulfur gas oil and aromatics can be efficiently produced together from a fluid catalytic cracked oil fraction.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: January 13, 2015
    Assignee: SK Innovation Co., Ltd.
    Inventors: Cheol Joong Kim, Jae Wook Ryu, Kyeong Hak Seong, Byoung Mu Chang, Byeung Soo Lim, Jong Hyung Lee, Kyung Seok Noh, Hyuck Jae Lee, Sam Ryong Park, Sun Choi, Seung Hoon Oh, Yong Seung Kim, Gyung Rok Kim
  • Patent number: 8933287
    Abstract: 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: Grant
    Filed: March 25, 2014
    Date of Patent: January 13, 2015
    Assignee: UOP LLC
    Inventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
  • Patent number: 8916738
    Abstract: 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: Grant
    Filed: March 25, 2014
    Date of Patent: December 23, 2014
    Assignee: UOP LLC
    Inventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
  • Patent number: 8889940
    Abstract: 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: Grant
    Filed: November 1, 2011
    Date of Patent: November 18, 2014
    Assignee: UOP LLC
    Inventors: Paula L. Bogdan, Hui Wang, Richard R. Willis
  • Patent number: 8877996
    Abstract: Disclosed is a process for the production of alkylated aromatics by contacting a feed stream comprising an alkylatable aromatic, an alkylating agent and trace amounts of water and impurities in the presence of a first catalyst and an alkylation catalyst wherein such water and impurities are removed in order to improve the cycle length of such alkylation catalysts. Water and at least a portion of impurities are removed in a dehydration zone. A reaction zone having a first catalyst which, in some embodiments is a large pore molecular sieve, acts to remove another portion of impurities, such as nitrogenous and other species. An alkylation zone having an alkylation catalyst which, in some embodiments is a medium pore molecular sieve or a MCM-22 family material, acts to remove additional impurities, and to alkylate the alkylatable aromatic compound.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 4, 2014
    Assignees: ExxonMobil Chemical Patents Inc., Technip Process Technology, Inc.
    Inventors: Matthew J. Vincent, Vijay Nanda, Maruti Bhandarkar, Brian Maerz, Terry E. Helton
  • Publication number: 20140316174
    Abstract: Methods are provided for the treatment of a feed stream containing C9 aromatic components to produce mesitylene-containing products. The methods include hydrodealkylating the feed stream to remove C2 and higher alkyl groups from the aromatic components and transalkylating the feed stream to rearrange the distribution of methyl groups among the aromatic components. Disclosed methods also include the treatment of a hydrocarbon feedstock by hydrodealkylation and/or transalkylation in order to produce a hydrocarbon product having an increased mass percentage of mesitylene.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 23, 2014
    Inventors: Chris D'Acosta, Jeffery Miller, Robert Hoch
  • Patent number: 8841501
    Abstract: A group V metal/rhenium-modified molecular sieve catalyst can be used in hydrocarbon conversion reactions. Embodiments can provide a toluene conversion of at least 30 wt % with selectivity to benzene above 40 wt % and to xylenes above 40 wt % and non-aromatics selectivity of less than 2.0 wt %.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: September 23, 2014
    Assignee: Fina Technology, Inc.
    Inventors: James Butler, Olga Khabashesku, Darek Wachowicz, Callum Bailey
  • Patent number: 8841502
    Abstract: A new family of coherently grown composites of TUN and IMF zeotypes has been synthesized and shown to be effective catalysts for aromatic transalkylation reactions. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where M represents a metal or metals from zinc or Group 1 (IUPAC 1), Group 2 (IUPAC 2), Group 3 (IUPAC 3) or the lanthanide series of the periodic table, T is the organic directing agent derived from reactants R and Q where R is an A,?-dihalosubstituted alkane such as 1,4-dibromobutane and Q is at least one neutral amine having 6 or fewer carbon atoms such as 1-methylpyrrolidine. E is a framework element such as gallium. The process involves transalkylation of a feedstream comprising one or more of C7, C9, C10 and C11+ aromatics to obtain a transalkylation product stream having an increased concentration of C8 aromatics relative to that of the feedstream.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: September 23, 2014
    Assignee: UOP LLC
    Inventors: Christopher P. Nicholas, Edwin P. Boldingh, Marc R. Schreier
  • Publication number: 20140171712
    Abstract: 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: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: UOP LLC
    Inventors: Deng-Yang Jan, Jaime G. Moscoso, Paula L. Bogdan
  • Patent number: 8754279
    Abstract: 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: Grant
    Filed: December 11, 2013
    Date of Patent: June 17, 2014
    Assignee: UOP LLC
    Inventors: Mark A. Miller, Christopher P. Nicholas, Stephen T. Wilson
  • Publication number: 20140163286
    Abstract: A new family of coherently grown composites of TUN and IMF zeotypes has been synthesized and shown to be effective catalysts for aromatic transalkylation reactions. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where M represents a metal or metals from zinc or Group 1 (IUPAC 1), Group 2 (IUPAC 2), Group 3 (IUPAC 3) or the lanthanide series of the periodic table, T is the organic directing agent derived from reactants R and Q where R is an A,?-dihalosubstituted alkane such as 1,4-dibromobutane and Q is at least one neutral amine having 6 or fewer carbon atoms such as 1-methylpyrrolidine. E is a framework element such as gallium. The process involves transalkylation of a feedstream comprising one or more of C7, C9, C10 and C11+ aromatics to obtain a transalkylation product stream having an increased concentration of C8 aromatics relative to that of the feedstream.
    Type: Application
    Filed: November 12, 2013
    Publication date: June 12, 2014
    Applicant: UOP LLC
    Inventors: Christopher P. Nicholas, Edwin P. Boldingh, Marc R. Schreier
  • Patent number: 8742191
    Abstract: A process for transalkylation of polyalkylated aromatic components can include providing a transalkylation reaction zone containing a transalkylation catalyst. A feedstock can be introduced into an inlet of the transalkylation reaction zone and into contact with the transalkylation catalyst. The feedstock can include a polyalkylated aromatic component derived from an aromatic substrate. The aromatic substrate can be supplied to the transalkylation reaction zone. The transalkylation reaction zone can be operated at temperature and pressure conditions sufficient to cause disproportionation of the polyalkylated aromatic component to produce a disproportionation product having a reduced polyalkylated aromatic content and an enhanced monoalkylated aromatic content. The disproportionation product can be withdrawn from the transalkylation reaction zone. Amounts of nitrogen containing compounds in the aromatic substrate can be monitored in a range of from 15 to 35 wppm by dry colorimetry.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: June 3, 2014
    Assignee: Total Petrochemicals France
    Inventor: Jean-Bernard Cary
  • Patent number: 8704026
    Abstract: A new family of aluminosilicate zeolites designated UZM-44 has been synthesized. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where M represents a metal or metals from zine, 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), T is the organic structure directing agent or agents, and E is a framework element such as gallium. UZM-44 may be used to catalyze a process for the transalkylation of a feedstream comprising one or more of C7, C9, C10 and C11+ aromatics to obtain a transalkylation product stream having an increased concentration of C8 aromatics relative to that of the feedstream.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: April 22, 2014
    Assignee: UOP LLC
    Inventors: Christopher P. Nicholas, Edwin P. Boldingh, Marc R. Schreier
  • Publication number: 20140100403
    Abstract: A process for transalkylation is described. The process operates at a lower pressure than a typical transalkylation processes, and provides higher benzene purity with comparable or lower ring loss compared to the typical transalkylation process. The xylene selectivity is comparable to or higher than the standard process, and the ethyl benzene selectivity is comparable to or lower than the standard process.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 10, 2014
    Applicant: UOP LLC
    Inventors: Naiyl A. Rashid, Edwin P. Boldingh, Raymond Shih, Marc R. Schreier, David S. Lafyatis
  • Publication number: 20140066674
    Abstract: 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: Application
    Filed: November 7, 2013
    Publication date: March 6, 2014
    Applicant: UOP LLC
    Inventors: Christopher P. Nicholas, Mark A. Miller
  • Patent number: 8653315
    Abstract: The multiple zeolite catalyst is a catalytic composition used to convert alkylaromatic hydrocarbons to BTX, particularly to commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VI of the Periodic Table of the Elements. The two zeolites have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt % molybdenum. The multiple zeolite catalyst may further be used to convert toluene to mixed xylene isomers, particularly with a ZSM-5:mordenite ratio of 2:1 by weight.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: February 18, 2014
    Assignee: King Fahd University of Petroleum and Minerals
    Inventor: Mohammad A. Ashraf Ali
  • Patent number: 8636976
    Abstract: This invention relates to a crystalline molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of the d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of the d-spacing maximum at 12.33±0.23 Angstroms. This invention also relates to a method of making thereof.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: January 28, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wieslaw J. Roth, Thomas Yorke, Michael C. Kerby, Simon C. Weston
  • Patent number: 8633342
    Abstract: In a process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, a first feed stream comprising fresh alkylatable aromatic compound is passed to a first reaction zone which comprises a transalkylation catalyst and which also receives a second feed stream comprising polyalkylated aromatic compounds. The first and second feed streams are contacted with the transalkylation catalyst in the first reaction zone under conditions to transalkylate the polyalkylated aromatic compounds with the alkylatable aromatic compound to produce the desired monoalkylated aromatic compound. A first effluent stream comprising unreacted alkylatable aromatic compound and the monoalkylated aromatic compound is removed from the first reaction zone and passed to a fractionation system to separate the first effluent stream into a first light fraction comprising the unreacted alkylatable aromatic compound and a first heavy fraction comprising the monoalkylated aromatic compound.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: January 21, 2014
    Assignee: Badger Licensing LLC
    Inventors: Matthew J. Vincent, Charles Morris Smith
  • Patent number: 8633343
    Abstract: In a process for the transalkylation of polycyclohexylbenzenes, a feed containing at least one polycyclohexylbenzene is contacted with benzene under transalkylation conditions with a catalyst comprising a zeolite USY having a silica to alumina molar ratio in excess of 10 to convert at least part of said polycyclohexylbenzene to cyclohexylbenzene.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: January 21, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kun Wang, Jane C. Cheng, Terry E. Helton
  • Patent number: 8629311
    Abstract: Disclosed is a process for the production of alkylated aromatics by contacting a feed stream comprising an alkylatable aromatic, an alkylating agent and trace amounts of water and impurities in the presence of first and second alkylation catalysts wherein the water and impurities are removed in order to improve the cycle length of such alkylation catalysts. Water and a portion of impurities are removed in a dehydration zone. A first alkylation zone having a first alkylation catalyst which, in some embodiments is a large pore molecular sieve, acts to remove a larger portion of impurities, such as nitrogenous and other species, and to alkylate a smaller portion of the alkylatable aromatic compound. A second alkylation zone, which in some embodiments is a medium pore molecular sieve, acts to remove a smaller portion of impurities, and to alkylate a larger portion of the alkylatable aromatic compound.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: January 14, 2014
    Assignees: Stone & Webster, Inc., ExxonMobil Chemical Patents Inc.
    Inventors: Matthew J. Vincent, Vijay Nanda, Maruti Bhandarkar, Brian Maerz, Terry E. Helton
  • Patent number: 8618343
    Abstract: A new family of coherently grown composites of TUN and IMF zeotypes has been synthesized and shown to be effective catalysts for aromatic transalkylation reactions. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where M represents a metal or metals from zinc or Group 1 (IUPAC 1), Group 2 (IUPAC 2), Group 3 (IUPAC 3) or the lanthanide series of the periodic table, T is the organic directing agent derived from reactants R and Q where R is an A,?-dihalosubstituted alkane such as 1,4-dibromobutane and Q is at least one neutral amine having 6 or fewer carbon atoms such as 1-methylpyrrolidine. E is a framework element such as gallium. The process involves transalkylation of a feedstream comprising one or more of C7, C9, C10 and C11+ aromatics to obtain a transalkylation product stream having an increased concentration of C8 aromatics relative to that of the feedstream.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 31, 2013
    Assignee: UOP LLC
    Inventors: Christopher P. Nicholas, Edwin P. Boldingh, Marc R. Schreier
  • Patent number: 8609921
    Abstract: A new family of aluminosilicate zeolites designated UZM-44 has been synthesized. These zeolites are represented by the empirical formula. NanMmk+TtAl1-xExSiyOz where M represents a metal or metals from zine, 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), T is the organic structure directing agent or agents, and E is a framework element such as gallium. UZM-44 may be used to catalyze a process for the transalkylation of a feedstream comprising one or more of C7, C9, C10 and C11+ aromatics to obtain a transalkylation product stream having an increased concentration of C8 aromatics relative to that of the feedstream.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Christopher P. Nicholas, Edwin P. Boldingh, Marc R. Schreier
  • Publication number: 20130331628
    Abstract: A group V metal/rhenium-modified molecular sieve catalyst can be used in hydrocarbon conversion reactions. Embodiments can provide a toluene conversion of at least 30 wt % with selectivity to benzene above 40 wt % and to xylenes above 40 wt % and non-aromatics selectivity of less than 2.0 wt %.
    Type: Application
    Filed: August 12, 2013
    Publication date: December 12, 2013
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: James Butler, Olga Khabashesku, Darek Wachowicz, Callum Bailey
  • Publication number: 20130324760
    Abstract: 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: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Inventors: Ivy D. Johnson, Wenyih Frank Lai
  • Patent number: 8586809
    Abstract: A guard bed or absorber is placed upstream of a transalkylation reactor to avoid deposition of halide and/or halogen species on the catalysts in said reactor.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: November 19, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James H. Beech, Jr., Julia E. Steinheider, Doron Levin, Selma S. Lawrence
  • Patent number: 8580702
    Abstract: The present invention discloses a catalyst for toluene shape selective disproportionation, comprising: a) 45 to 95 wt % of ZSM-5 molecular sieve having an average particle size of from 0.3 to 6 ?m and a molar ratio of SiO2 to Al2O3 of from 20 to 120; b) 0.01 to 30 wt % of at least one metal selected from the group consisting of Group IIB metals, Group IIIB metals, rare earth elements and Group VIII metals other than nickel, or oxide(s) thereof; c) 0 to 20 wt % of at least one metal selected from the group consisting of Group VA metals, Group VIB metals and alkaline earth metals, or oxide(s) thereof; d) 1 to 25 wt % of a silica inert surface coating derived from an organopolysiloxane; and e) 1 to 50 wt % of a binder. The present invention further discloses a process for shape selectively disproportionating toluene into p-xylene, comprising contacting a reaction stream containing toluene with the catalyst for toluene shape selective disproportionation under toluene disproportionation conditions.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 12, 2013
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Zaiku Xie, Dejin Kong, Zhirong Zhu, Wei Li, Qingling Chen, Rong Zhang
  • Publication number: 20130261365
    Abstract: A method for the transalkylation of a heavy reformate is provided. The heavy reformate is contacted with a transalkylation catalyst and hydrogen gas in a transalkylation reactor to selectively convert the heavy reformate to a xylenes-rich product stream. Light alkanes produced during the reaction can be supplied to a steam cracker where they are converted to light olefins.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 3, 2013
    Applicant: Saudi Arabian Oil Company
    Inventors: Yuguo Wang, Cemal Ercan
  • Publication number: 20130261364
    Abstract: A transalkylation catalyst for the transalkylation of a heavy reformate is provided. The catalyst includes two solid acid zeolites having different physical and chemical properties, and at least three metals selected from the group 4 Lanthanoids, and the elements found in groups 6 and 10 of the periodic table.
    Type: Application
    Filed: March 12, 2013
    Publication date: October 3, 2013
    Applicant: Saudi Arabian Oil Company
    Inventors: Cemal Ercan, Yuguo Wang
  • Publication number: 20130253247
    Abstract: 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: Application
    Filed: May 23, 2013
    Publication date: September 26, 2013
    Applicant: UOP LLC
    Inventor: Edwin P. Boldingh
  • Publication number: 20130245349
    Abstract: This invention relates to a process for producing aluminium silicates in the form of zeolite L, as well as the intermediate and end products of this process. The invention further relates to the use of these aluminium silicates for the conversion or adsorption of hydrocarbons.
    Type: Application
    Filed: July 28, 2011
    Publication date: September 19, 2013
    Applicant: SUD-CHEMIE IP GMBH & CO. KG.
    Inventors: Olivier Larlus, Martin Claus, Rainer Albert Rakoczy
  • Patent number: 8529752
    Abstract: This invention relates to a process for hydrocarbon conversion comprising contacting a hydrocarbon feedstock with a crystalline molecular sieve, in its ammonium exchanged form or in its calcined form, under conversion conditions to form a conversion product, said crystalline molecular sieve comprising unit cells with MWW topology and is characterized by diffraction streaking from the unit cell arrangement in the c direction as evidenced by the arced hk0 patterns of electron diffraction pattern.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: September 10, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wieslaw J. Roth, Thomas Yorke, Douglas Lewis Dorset, Mohan Kalyanaraman, Michael Charles Kerby, Simon Christopher Weston
  • Patent number: 8524967
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material which comprises MCM-56 and having a ratio of surface area over volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Yun-Feng Chang