Patents Assigned to Lummus Technology LLC
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Patent number: 12215282Abstract: A process including preheating a hydrocarbon feed in a first preheat zone of a convection section, recovering a preheated hydrocarbon stream; heating the preheated hydrocarbon stream in a secondary transferline exchanger, recovering a heated hydrocarbon stream; feeding the heated hydrocarbon stream to a second preheat zone of the convection section to vaporize a portion of heated hydrocarbon stream, recovering a cracking feedstream; cracking hydrocarbons in the cracking feedstream in one or more coils in a radiant section, recovering a cracked hydrocarbon product; and cooling the cracked hydrocarbon product in the secondary transferline exchanger in indirect heat exchange with the preheated hydrocarbon stream, recovering a cooled hydrocarbon product stream.Type: GrantFiled: March 22, 2023Date of Patent: February 4, 2025Assignee: Lummus Technology LLCInventors: Kandasamy M. Sundaram, Thomas W. Gronauer, Baozhong Zhao, Stephen J. Stanley, Marijn Kamphuijs, Frank D. McCarthy, Jose De Barros
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Patent number: 12209221Abstract: Systems and processes for converting waste plastics and other waste materials to useful end products. The systems integrate a plastics pyrolysis reactor and a liquid phase thermal cracking reactor to advantageously process the waste plastics to form various hydrocarbon products.Type: GrantFiled: April 13, 2023Date of Patent: January 28, 2025Assignee: Lummus Technology LLCInventors: Daniel Bruce Gillis, Sudipto Chakraborty, Manoj Roy Som, Liang Chen, Fredy Antonio Cabrales
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Patent number: 12208380Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.Type: GrantFiled: November 2, 2021Date of Patent: January 28, 2025Assignee: Lummus Technology LLCInventors: Liang Chen, Peter Loezos, Rama Rao Marri, Bryan Tomsula, Jon A. Hood, Hardik Singh, Michael Dorsey, Justin Breckenridge
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Publication number: 20250026987Abstract: Systems and processes for cracking hydrocarbons to produce olefins herein includes heating a hydrocarbon feedstock or a mixture comprising steam and hydrocarbons to a first temperature to form a preheated feed, and also include electrically heating steam to a second, higher, temperature to form a superheated reaction steam. The preheated feed is then mixed with the superheated reaction steam to form a reaction mixture at a cracking temperature, thereby cracking the hydrocarbons to form olefins, producing a reaction effluent. The reaction effluent is then quenched and separated effluent to recover the olefins.Type: ApplicationFiled: June 27, 2024Publication date: January 23, 2025Applicant: LUMMUS TECHNOLOGY LLCInventor: Kandasamy M. Sundaram
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Patent number: 12195415Abstract: A process and system for converting bio ethanol to high purity isobutene is provided. The system includes a dehydration unit configured to receive a bio ethanol containing stream, convert the bio ethanol to bio ethylene, and produce a bio ethylene containing stream, a dimerization unit configured to receive the bio ethylene stream, dimerize ethylene, and produce an n-butenes containing stream, a skeletal isomerization unit configured to receive the n-butenes containing stream, convert n-butenes to produce a skeletal isomerization stream comprising an isobutene, isobutane, n-butenes, and n-butane, and a catalytic separation unit configured to receive the skeletal isomerization stream, convert olefins and/or isoolefins contained therein to produce a converted skeletal isomerization reaction product, and to fractionate the skeletal isomerization reaction product and produce bio isobutene.Type: GrantFiled: February 10, 2023Date of Patent: January 14, 2025Assignee: Lummus Technology LLCInventors: Martinus Johannes Almering, Rosette Barias, Todd Vogt
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Publication number: 20250011666Abstract: Embodiments herein relate to solutions to maximize the recovery of ethylene, propylene and aromatics rich naphtha from crude oil processing. The schemes involve treating the effluent from Fluid Catalytic Cracking (FCC) to remove metals like AsH3, PH3, Hg, as well as impurities such as NOx and oxygen, before mixing it with the steam cracker effluent. The combined effluent is then cooled in a cold box and sent to various fractionators for separating the ethylene, propylene, and aromatics rich naphtha.Type: ApplicationFiled: July 3, 2024Publication date: January 9, 2025Applicant: LUMMUS TECHNOLOGY LLCInventors: Rakesh Kumar Mishra, Sumit Mittal, Vishal Varshney, Ian Belwood, Ankur Jain, Srikanta Kumar Ghosh, Amit Kumar Agrawal, Abhik Banerjee, Mangesh M. Gundale
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Publication number: 20250011660Abstract: Processes for cracking hydrocarbons include contacting hydrocarbon feedstocks with conditioned cracking catalyst in a riser reactor to recover an effluent. The effluent is separated to recover a cracked hydrocarbon stream and a spent catalyst. The spent catalyst is contacted with steam, stripping residual hydrocarbons from the spent catalyst, and the stripped catalyst is fed to a catalyst regenerator and regenerated via combustion of coke contained in the spent catalyst, forming a regenerated catalyst and combustion products. The regenerated catalyst, containing entrained combustion products (e.g., NOx, SOx, and COx) including nitrogen from the regenerator, is fed to a catalyst standpipe hopper. The regenerated catalyst containing entrained combustion products is conditioned in the catalyst standpipe hopper by contacting the regenerated catalyst with steam to recover the conditioned catalyst and a vapor stream comprising steam and the combustion products.Type: ApplicationFiled: July 3, 2024Publication date: January 9, 2025Applicant: LUMMUS TECHNOLOGY LLCInventors: Ian Belwood, Manoj Roy Som, Rama Rao Marri, Mangesh M. Gundale
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Patent number: 12188395Abstract: A system may include a turbine and a recuperative heat exchanger system. The recuperative heat exchanger system is configured to receive exhaust gases from the turbine. The recuperative heat exchanger system may include a precool section to cool the exhaust gases, a major heating section to receive the cooled the exhaust gases, and a minor heating section to receive the cooled the exhaust gases.Type: GrantFiled: June 16, 2023Date of Patent: January 7, 2025Assignee: Lummus Technology LLCInventors: Richard John Jibb, David Guymon, Ron Herbanek, Vincenzo Marco Brignone, Roberto Groppi
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Patent number: 12180129Abstract: Methods and systems for producing high purity methanol and isobutene from crude MTBE feed using multiple divided wall columns are provided. The methods can include purifying the MTBE, dissociating the MTBE to produce isobutene and methanol, purifying the isobutene and recovering/purifying methanol.Type: GrantFiled: September 11, 2019Date of Patent: December 31, 2024Assignee: Lummus Technology LLCInventors: Rosette Barias, Alejandro Maurer
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Patent number: 12172952Abstract: Systems and processes herein improve the conversion of propylene to ethylene via metathesis. On a mass basis, embodiments herein may be used to convert greater than 40% propylene, on a mass basis, to ethylene, such as 43% to 75%, on a mass basis. In one aspect, processes for the conversion of propylene to ethylene herein may include introducing a propylene feed stream to a metathesis reactor, and contacting the propylene with a metathesis catalyst in the metathesis reactor to convert the propylene to ethylene and 2-butene. An effluent from the metathesis reactor may be recovered, the effluent including ethylene, 2-butene, and unconverted propylene. The effluent may then be separated in a fractionation system to recover an ethylene fraction, a propylene fraction, a c4 fraction, and a C5+ fraction. The propylene fraction and the C4 fraction may then be fed to the metathesis reactor to produce additional ethylene.Type: GrantFiled: January 27, 2023Date of Patent: December 24, 2024Assignee: Lummus Technology LLCInventor: Bala Ramachandran
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Patent number: 12162825Abstract: Systems and processes for the efficient conversion of high concentration isoolefin streams to tertiary alkyl ethers are disclosed. The systems and processes may include a feed system to advantageously divide the high concentration isoolefin feed to multiple fixed bed reactors and a catalytic distillation reactor to control the reaction exotherm and achieve a high isoolefin conversion.Type: GrantFiled: February 11, 2022Date of Patent: December 10, 2024Assignee: Lummus Technology LLCInventors: Rosette Barias, Michael Jon Scott
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Patent number: 12162814Abstract: A process for the selective dimerization and etherification of isoolefins. The process including feeding a mixed C5 stream to a selective hydrogenation unit to convert dienes to olefins and isoolefins, producing a hydrogenated effluent stream. The hydrogenated effluent stream is fed to a first fixed bed reactor, producing a first reactor effluent. The first reactor effluent is fed to a catalytic distillation reactor system, producing a first overheads including unreacted olefins, isoolefins, oxygenate, and one or more C5 ethers and a first bottoms including dimers of the isoolefins, any produced trimers of the isoolefins, and heavy oxygenates. The first overheads is fed to a second fixed bed reactor, producing a second reactor effluent including dimers of the isoolefins, unreacted C5s, and unreacted oxygenates.Type: GrantFiled: October 28, 2021Date of Patent: December 10, 2024Assignee: LUMMUS TECHNOLOGY LLCInventors: Rosette Barias, Michael Jon Scott, Liang Chen
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Patent number: 12139425Abstract: There are disclosed processes and systems wet air oxidation systems and processes which provide for the combined treatment of a spent caustic with a spent material (e.g., spent carbon, spent biological material, or combinations thereof) to produce a regenerated spent material stream.Type: GrantFiled: August 8, 2019Date of Patent: November 12, 2024Assignee: LUMMUS TECHNOLOGY LLCInventors: Bryan J. Kumfer, Simon Larson
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Publication number: 20240351963Abstract: Systems and processes for the production of a high purity isobutylene stream, a high purity isooctene stream or for the co-production of a high purity isobutylene and a high purity isooctene. The systems and processes advantageously process mixed C4 hydrocarbon streams via etherification, back cracking, isomerization, and/or dimerization, along with various separation systems, to produce the desired high purity streams.Type: ApplicationFiled: April 17, 2024Publication date: October 24, 2024Applicant: LUMMUS TECHNOLOGY LLCInventor: Rosette Barias
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Publication number: 20240352338Abstract: An apparatus including a radiant heating section and a flue gas stack; one or more process coils disposed within the radiant heating section; one or more fuel-fired burners disposed within the radiant heating section, the one or more fuel-fired burners configured for combusting a fuel and producing the combustion gas; one or more electrical heating elements disposed within the radiant heating section, the one or more electrical heating elements arranged to provide a second radiant energy to a lower elevation of the one or more process coils; and an internal baffle located at an elevation between the upper elevation and the lower elevation, the internal baffle arranged to provide shielding of the one or more electrical heating elements from flame and combustion gases from the one or more fuel-fired burners.Type: ApplicationFiled: April 23, 2024Publication date: October 24, 2024Applicant: LUMMUS TECHNOLOGY LLCInventors: Baozhong Zhao, Eduardo Hart, Stephen Stanley, Kandasamy Sundaram, Aijing Yin, Xueping Li
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Patent number: 12116295Abstract: There are provided systems (10) and processes for the selective removal of cyanide from a wastewater stream (12) comprising cyanide and an amount of organic compounds therein.Type: GrantFiled: August 9, 2019Date of Patent: October 15, 2024Assignee: LUMMUS TECHNOLOGY LLCInventors: Philip A. Burclaff, Bryan J. Kumfer, Duane R. Smith
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Patent number: 12098335Abstract: Processes herein may be used to thermally crack various hydrocarbon feeds, and may eliminate the refinery altogether while making the crude to chemicals process very flexible in terms of crude. In embodiments herein, crude is progressively separated into at least light and heavy fractions. Depending on the quality of the light and heavy fractions, these are routed to one of three upgrading operations, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a residue hydrocracking unit that may utilize an ebullated bed reactor. Products from the upgrading operations may be used as feed to a steam cracker.Type: GrantFiled: June 29, 2023Date of Patent: September 24, 2024Assignees: LUMMUS TECHNOLOGY LLC, Saudi Aramco Technologies Company, Chevron Lummus Global LLCInventors: Ujjal Mukherjee, Kareemuddin Shaik, Pedro Santos, Essam Abdullah Al-Sayed, Theodorus Maesen, Mazin Tamimi, Julie Chabot, Ibrahim Abba, Kandasamy Sundaram, Sami Barnawi, Ronald M. Venner
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Publication number: 20240310044Abstract: Electrical heater systems including one or multiple electrical heaters and a stack for combusting materials leaked into and vented from the electrical heaters. Configurations may include fluid conduits, pressure doors and other equipment for controlling a flow of leaked process fluid between the heater enclosure and the stack. Configurations may also include a purge gas distribution system for purging heater enclosures and preventing thermal shock of electrical heating elements.Type: ApplicationFiled: March 13, 2024Publication date: September 19, 2024Applicant: LUMMUS TECHNOLOGY LLCInventors: Baozhong Zhao, Xueping Li, Eduardo Hart, Benedict Cardaci, Sehjin Kim, William Morgan
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Publication number: 20240280261Abstract: An apparatus for heating petroleum, petrochemical, chemical process fluids, and boiler feed water or steam generation with a combination, or individual operation, of electrical elements and fired burners. The apparatus includes a radiant heating section and a flue gas stack for exhausting a combustion gas to the atmosphere. The radiant section includes one or more process coils, one or more fuel-fired burners for combusting a fuel and producing the combustion gas, where the one or more fuel-fired burners are arranged to provide radiant energy to a first area of the one or more process coils, and one or more electrical heating elements arranged to provide radiant energy to a second area of the one or more process coils. The one or more electrical heating elements are configured to provide 5% or more of a combined maximum energy output of the fuel-fired burners and the electrical heating elements.Type: ApplicationFiled: February 20, 2024Publication date: August 22, 2024Applicant: LUMMUS TECHNOLOGY LLCInventors: Baozhong Zhao, Aijing Yin, Marijn Kamphuis, Alejandro Carrillo, Marcio Razuk
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Publication number: 20240263090Abstract: Processes herein may be used to thermally crack various hydrocarbon feeds, and may eliminate the refinery altogether while making the crude to chemicals process very flexible in terms of crude. In embodiments herein, crude is progressively separated into at least light and heavy fractions. Depending on the quality of the light and heavy fractions, these are routed to one of three upgrading operations, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a residue hydrocracking unit that may utilize an ebullated bed reactor. Products from the upgrading operations may be used as feed to a steam cracker.Type: ApplicationFiled: April 12, 2024Publication date: August 8, 2024Applicants: LUMMUS TECHNOLOGY LLC, Saudi Aramco Technologies Company, Chevron Lummus Global LLCInventors: Essam Abdullah Al-Sayed, Ujjal Mukherjee, Kareemuddin Shaik, Pedro Santos, Theodorus Maesen, Mazin Tamimi, Julie Chabot, Ibrahim Abba, Kandasamy Sundaram, Sami Barnawi, Ronald Venner, Raghu Narayan, Meredith Lansdown