Patents by Inventor István Lengyel
István Lengyel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230226522Abstract: Catalysts for the hydrogenolysis of butane are described. A supported catalyst for hydrogenolysis of butane to ethane can include a support and a catalytic crystalline bimetallic composition that can include a molybdenum-iridium (Mo—Ir) crystalline composition attached to the support. The supported catalyst has a BET specific surface area of at least 100 m2/g, preferably 100 m2/g to 500 m2/g. Method of use and methods of making the catalyst are also described.Type: ApplicationFiled: February 24, 2021Publication date: July 20, 2023Applicant: SABIC Global Technologies B.V.Inventors: Byeongjin BAEK, Istvan LENGYEL, Katherine BARTON, Neeta KULKARNI, Dustin FICKEL
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Patent number: 11254628Abstract: Processes for the hydrogenolysis of butane are described. A process can include (a) introducing a butane feed and hydrogen to a first hydrogenolysis reactor comprising a hydrogenolysis catalyst, and (b) contacting the butane feed and hydrogen with the hydrogenolysis catalyst at conditions sufficient to produce a first hydrogenolysis product stream. The introduction of the butane feed stream and hydrogen to the first hydrogenolysis reactor can be controlled to maintain a hydrogen to butane molar ratio in the reactor inlet of 0.3:1 to 0.8:1.Type: GrantFiled: July 28, 2020Date of Patent: February 22, 2022Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Heng Shou, Byeongjin Baek, Robert R. Broekhuis, Dustin Fickel, Istvan Lengyel, Emiel Van Kimmenade
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Publication number: 20220033325Abstract: Processes for the hydrogenolysis of butane are described. A process can include (a) introducing a butane feed and hydrogen to a first hydrogenolysis reactor comprising a hydrogenolysis catalyst, and (b) contacting the butane feed and hydrogen with the hydrogenolysis catalyst at conditions sufficient to produce a first hydrogenolysis product stream. The introduction of the butane feed stream and hydrogen to the first hydrogenolysis reactor can be controlled to maintain a hydrogen to butane molar ratio in the reactor inlet of 0.3:1 to 0.8:1.Type: ApplicationFiled: July 28, 2020Publication date: February 3, 2022Inventors: Heng SHOU, Byeongjin BAEK, Robert R. BROEKHUIS, Dustin FICKEL, Istvan LENGYEL, Emiel VAN KIMMENADE
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Publication number: 20210308650Abstract: A reactor (12, 128, 198) and method for the conversion of hydrocarbon gases utilizes a reactor (12, 128, 198) having a unique feed assembly (58, 136, 200) with an original vortex disk-like inlet flow spaces (72, 74, 76, 80, 146, 148, 150, 152, 208, 216, 218), a converging-diverging vortex mixing chamber (116), and a cylindrical reactor chamber (40). This design creates a small combustion zone and an inwardly swirling fluid flow pattern of the feed gases that passes through a converging conduit (48) with a constricted neck portion (54). This provides conditions suitable for efficient cracking of hydrocarbons, such as ethane, to form olefins.Type: ApplicationFiled: October 23, 2019Publication date: October 7, 2021Inventors: Sreekanth Pannala, Byeongjin Baek, Lei Chen, Vladimir Shtern, Istvan Lengyel, David West, Krishnan Sankaranarayanan
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Patent number: 11123705Abstract: A reactor (12, 128, 198) and method for the conversion of hydrocarbon gases utilizes a reactor (12, 128, 198) having a unique feed assembly (58, 136, 200) with an original vortex disk-like inlet flow spaces (72, 74, 76, 80, 146, 148, 150, 152, 208, 216, 218), a converging-diverging vortex mixing chamber (116), and a cylindrical reactor chamber (40). This design creates a small combustion zone and an inwardly swirling fluid flow pattern of the feed gases that passes through a converging conduit (48) with a constricted neck portion (54). This provides conditions suitable for efficient cracking of hydrocarbons, such as ethane, to form olefins.Type: GrantFiled: October 23, 2019Date of Patent: September 21, 2021Assignee: SABIC Global Technologies B.V.Inventors: Sreekanth Pannala, Byeongjin Baek, Lei Chen, Vladimir Shtern, Istvan Lengyel, David West, Krishnan Sankaranarayanan
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Patent number: 11091410Abstract: A mixed oxide catalyst for the oxidative coupling of methane can include a catalyst with the formula AaBbCcDdOx, wherein: element A is selected from alkaline earth metals; elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals; the oxide of at least one of A, B, C, and D has basic properties; the oxide of at least one of A, B, C, and D has redox properties; and elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C2+ selectivity of greater than or equal to 70%. Systems and methods can include contacting the catalyst with methane and oxygen and purifying or collecting C2+ products.Type: GrantFiled: March 5, 2018Date of Patent: August 17, 2021Inventors: Wugeng Liang, Sagar Sarsani, Aghaddin Mamedov, Hector Perez, David West, Istvan Lengyel
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Patent number: 10751706Abstract: Use a solvent blend that contains 1-methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.Type: GrantFiled: January 14, 2020Date of Patent: August 25, 2020Assignee: Dow Global Technologies LLCInventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hensen, Julia Fuertes Cabello, Istvan Lengyel
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Patent number: 10717068Abstract: A metal oxide catalyst capable of catalyzing an oxidative coupling of methane reaction is described. The metal oxide catalyst includes a lanthanum (La) cerium (Ce) metal oxide and further including a lanthanum hydroxide (La(OH)3) crystalline phase. The catalyst is capable of catalyzing the production of C2+ hydrocarbons from methane and oxygen. Methods and systems of using the metal oxide catalyst to produce C2+ hydrocarbons from a reactant gas are also described.Type: GrantFiled: May 2, 2016Date of Patent: July 21, 2020Assignee: SABIC GLOBAL TECHNOLOGIESInventors: Wugeng Liang, Sagar Sarsani, David West, James Lowrey, Aghaddin Mamedov, Istvan Lengyel
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Patent number: 10696607Abstract: Disclosed is a process for producing C2+ hydrocarbons, and systems for implementing the process, that includes providing a reactant feed that includes methane and an oxygen containing gas to a first reaction zone, wherein the temperature of the reactant feed is less than 700° C. contacting the reactant feed with a first catalyst capable of catalyzing an oxidative coupling of methane reaction (OCM) to produce a first product stream that includes C2+ hydrocarbons and heat, and contacting the first product stream with a second catalyst capable of catalyzing an OCM reaction to produce a second product stream that includes C2+ hydrocarbons, wherein the produced heat is at least partially used to heat the first product stream prior to or during contact with the second catalyst, wherein the amount of C2+ hydrocarbons in the second product stream is greater than the amount of C2+ hydrocarbons in the first product stream.Type: GrantFiled: May 2, 2016Date of Patent: June 30, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Wugeng Liang, Sagar Sarsani, David West, James Lowrey, Aghaddin Mamedov, Istvan Lengyel
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Publication number: 20200147596Abstract: Use a solvent blend that contains 1methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.Type: ApplicationFiled: January 14, 2020Publication date: May 14, 2020Inventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hensen, Julia Fuertes Cabello, Istvan Lengyel
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Patent number: 10625244Abstract: An oxidative coupling of methane (OCM) catalyst composition comprising one or more oxides doped with Ag; wherein one or more oxides comprises a single metal oxide, mixtures of single metal oxides, a mixed metal oxide, mixtures of mixed metal oxides, or combinations thereof; and wherein one or more oxides is not La2O3 alone. A method of making an OCM catalyst composition comprising calcining one or more oxides and/or oxide precursors to form one or more calcined oxides, wherein the one or more oxides comprises a single metal oxide, mixtures of single metal oxides, a mixed metal oxide, mixtures of mixed metal oxides, or combinations thereof, wherein the one or more oxides is not La2O3 alone, and wherein the oxide precursors comprise oxides, nitrates, carbonates, hydroxides, or combinations thereof; doping the one or more calcined oxides with Ag to form the OCM catalyst composition; and thermally treating the OCM catalyst composition.Type: GrantFiled: July 13, 2016Date of Patent: April 21, 2020Assignee: Sabic Global Technologies, B.V.Inventors: Wugeng Liang, Vidya Sagar Reddy Sarsani, David West, Hector Perez, Aghaddin Mamedov, Istvan Lengyel, James Lowrey
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Patent number: 10569262Abstract: Use a solvent blend that contains 1-methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.Type: GrantFiled: December 4, 2014Date of Patent: February 25, 2020Assignee: Dow Global Technologies LLCInventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hansen, Julia Cabello Fuertes, Istvan Lengyel
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Publication number: 20200017424Abstract: A mixed oxide catalyst for the oxidative coupling of methane can include a catalyst with the formula AaBbCcDdOx, wherein: element A is selected from alkaline earth metals; elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals; the oxide of at least one of A, B, C, and D has basic properties; the oxide of at least one of A, B, C, and D has redox properties; and elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C2+ selectivity of greater than or equal to 70%. Systems and methods can include contacting the catalyst with methane and oxygen and purifying or collecting C2| products.Type: ApplicationFiled: March 5, 2018Publication date: January 16, 2020Applicant: SABIC Global Technologies, B.V.Inventors: Wugeng LIANG, Sagar SARSANI, Aghaddin MAMEDOV, Hector PEREZ, David WEST, Istvan LENGYEL
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Publication number: 20190233350Abstract: Integrated processes for the conversion of hydrocarbons to C2 and C3 unsaturated hydrocarbons include combustion and cracking of hydrocarbons, dry oxidative reforming of methane, and catalytic hydrogenation of acetylene. Reactive products formed among the integrated processes may be distributed and recycled among the processes for the conversion of the hydrocarbon feedstock.Type: ApplicationFiled: September 12, 2017Publication date: August 1, 2019Inventors: Krishnan SANKARANARAYANAN, Pankaj Singh GAUTAM, Aghaddin Khanlar MAMEDOV, Sreekanth PANNALA, Balamurali Krishna RAMACHANDRAN NAIR, Istvan LENGYEL, David WEST
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Publication number: 20190169090Abstract: A process for producing olefins comprising introducing to a reactor a reactant mixture comprising methane, oxygen, and water, wherein the reactor comprises a catalyst, and wherein water is present in the reactant mixture from 0.5 mol % to 20 mol %; allowing the reactant mixture to contact the catalyst and react via an OCM reaction to form a product mixture comprising C2+ hydrocarbons, unreacted methane, and byproducts; wherein C2+ hydrocarbons comprise olefins and paraffins; and wherein the process is characterized by a productivity, a C2+ selectivity, or both that is increased when compared to a productivity, a C2+ selectivity, or both, respectively, of an otherwise similar process conducted (i) with a reactant mixture comprising methane and oxygen and (ii) without water present in the reactant mixture from 0.5 mol % to 20 mol %; recovering the product mixture from the reactor; recovering C2+ hydrocarbons from the product mixture; and recovering olefins from C2+ hydrocarbons.Type: ApplicationFiled: July 17, 2017Publication date: June 6, 2019Applicant: Sabic Global Teehnologies, B.V.Inventors: Vidya Sagar Reddy SARSANI, Istvan LENGYEL, David WEST
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Publication number: 20190127295Abstract: Disclosed herein are processes, apparatuses, and systems for producing chemicals. One system may comprise a wall defining a chamber; a plurality of burners configured in an arrangement within the chamber, wherein each of the burners is supplied with a material and facilitates combustion of the material, and wherein the arrangement defines an inner volume disposed radially inwardly relative thereto; and an injector disposed within the inner volume and configured to introduce a feedstock into the chamber, wherein the plurality of burners provide thermal energy to facilitate thermal pyrolysis of the feedstock.Type: ApplicationFiled: May 9, 2017Publication date: May 2, 2019Inventors: Sreekanth Pannala, Balamurali Krishna Ramachandran Nair, Pankaj Singh Gautam, Krishnan Sankaranarayanan, David West, Istvan Lengyel, Chunliang Wu
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Publication number: 20180353940Abstract: A metal oxide catalyst capable of catalyzing an oxidative coupling of methane reaction is described. The metal oxide catalyst includes a lanthanum (La) cerium (Ce) metal oxide and further including a lanthanum hydroxide (La(OH)3) crystalline phase. The catalyst is capable of catalyzing the production of C2+ hydrocarbons from methane and oxygen. Methods and systems of using the metal oxide catalyst to produce C2+ hydrocarbons from a reactant gas are also described.Type: ApplicationFiled: May 2, 2016Publication date: December 13, 2018Inventors: Wugeng Liang, Sagar Sarsani, David West, James Lowrey, Aghaddin Mamedov, Istvan Lengyel
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Publication number: 20180311658Abstract: Disclosed is a process to prepare a [MnNaW]On/SiO2 catalyst using manganese oxide (MnO2) and tungsten oxide (WO3) nanostructures. Also disclosed are methods and systems using the aforementioned catalyst having higher methane conversion and C2 to C4 selectivity compared to similar catalysts not prepared with MnO2 and WO3 nanostructures.Type: ApplicationFiled: September 14, 2016Publication date: November 1, 2018Inventors: Wugeng LIANG, Vidya Sagar Reddy SARSANI, David WEST, Aghaddin MAMEDOV, James LOWREY, Istvan LENGYEL
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Publication number: 20180162785Abstract: Disclosed is a process for producing C2+ hydrocarbons, and systems for implementing the process, that includes providing a reactant feed that includes methane and an oxygen containing gas to a first reaction zone, wherein the temperature of the reactant feed is less than 700° C. contacting the reactant feed with a first catalyst capable of catalyzing an oxidative coupling of methane reaction (OCM) to produce a first product stream that includes C2+ hydrocarbons and heat, and contacting the first product stream with a second catalyst capable of catalyzing an OCM reaction to produce a second product stream that includes C2+ hydrocarbons, wherein the produced heat is at least partially used to heat the first product stream prior to or during contact with the second catalyst, wherein the amount of C2+ hydrocarbons in the second product stream is greater than the amount of C2+ hydrocarbons in the first product stream.Type: ApplicationFiled: May 2, 2016Publication date: June 14, 2018Inventors: Wugeng Liang, Sagar Sarsani, David West, James Lowrey, Aghaddin Mamedov, Istvan Lengyel
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Patent number: 9902665Abstract: A method for producing C2+ hydrocarbons and H2 comprising (a) introducing to a reactor a reactant mixture comprising methane, (b) heating the reactant mixture to a preheating temperature to yield a heated mixture, (c) generating free radicals in the heated mixture to form a primary effluent mixture comprising free radicals, C2+ hydrocarbons, H2, and unreacted methane, (d) reacting the primary effluent mixture in a secondary reaction zone to form a secondary effluent mixture comprising C2+ hydrocarbons, H2, free radicals, and unreacted methane, at a secondary reaction zone temperature that is greater than the preheating temperature, wherein a free radicals amount in the primary effluent mixture is greater than a free radicals amount in the secondary effluent mixture, (e) cooling the secondary effluent mixture to a quench temperature lower than the secondary reaction zone temperature to yield a product mixture comprising C2+ hydrocarbons and H2, and (f) recovering the product mixture.Type: GrantFiled: June 10, 2016Date of Patent: February 27, 2018Assignee: Sabic Global Technologies, B.V.Inventors: Dick A. Nagaki, Zhun Zhao, Myat Noe Zin Myint, Istvan Lengyel, Aghaddin Mamedov, C. William Gundlach, IV, Krishnan Sankaranarayanan, Derek Falcone