Patents Examined by Ali Z Fadhel
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Patent number: 11752494Abstract: The invention relates to a process for preparing a catalyst for alkane oxidative dehydrogenation and/or alkene oxidation, which catalyst is a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium, wherein the process comprises: a) preparing a catalyst precursor containing molybdenum, vanadium, niobium and optionally tellurium; b) optionally contacting the catalyst precursor obtained in step a) with oxygen and/or an inert gas at an elevated temperature; c) contacting the catalyst precursor obtained in step a) or step b) with a gas mixture comprising ammonia and water, which gas mixture further comprises oxygen and/or an inert gas, at an elevated temperature; and d) optionally contacting the catalyst precursor obtained in step c) with an inert gas at an elevated temperature.Type: GrantFiled: October 15, 2019Date of Patent: September 12, 2023Assignee: SHELL USA, INC.Inventors: Erwin Roderick Stobbe, Hendrik Albertus Colijn, Maria Elisabeth Van Es-Hogenstijn, Johanna Jacoba Berg-Slot
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Patent number: 11753356Abstract: Methods for determining ethylene concentration in an ethylene oligomerization reactor using an ultrasonic flow meter are described, and these methods are integrated into ethylene oligomerization processes and related oligomerization reactor systems.Type: GrantFiled: November 22, 2022Date of Patent: September 12, 2023Assignee: Chevron Phillips Chemical Company LPInventors: Bruce E. Kreischer, Kendall M. Hurst, Eric D. Schwerdtfeger, Steven M. Bischof, Jared Fern, Kent E. Mitchell, James Hillier
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Patent number: 11738319Abstract: A process and system for monitoring and controlling the operation of a dehydrogenation reactor is provided. Samples of hydrocarbon streams are taken at sampling locations to be analyzed at a single gas chromatograph or other analytical equipment. Actions can be taken to modify the operation of the dehydrogenation reactor as necessary to maintain its operation within predetermined parameters. In particular, actions may be taken when a hydrocarbon stream exhibits an amount of cracking that is outside parameters. It is usually intended that actions will be taken on a gradual basis once or twice per day to reduce the cost of the process while still providing the necessary changes to operations.Type: GrantFiled: May 25, 2021Date of Patent: August 29, 2023Assignee: UOP LLCInventors: James W. Harris, Parag Jain, Paul Adams, Michael J. Grapenthien, Louis A. Lattanzio, Priyank Tiwari, Charles P. Luebke, Zudtky Wisecraver, Christopher DiGiulio
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Patent number: 11732200Abstract: The present invention relates to an integrated process for increasing the research octane number (RON) of FCC gasoline with simultaneous reduction in benzene content. In this process, benzene rich gasoline fraction is reacted with light olefin rich gaseous streams like FCC off gas/dry gas, coker off gas to produce alkyl aromatics using FCC catalyst system containing ZSM-5 zeolite. The catalyst is continuously drawn from the FCC regenerator by suitably placing the alkylation reactor in communication with the FCC regenerator. The product stream of the alkylation reactor is routed to main fractionator for separation of off gas and benzene lean gasoline. This integrated process not only improves the octane number of gasoline but also lowers the gasoline benzene content. Further the integrated alkylation reactor system acts as a heat sink lowering the FCC regenerator temperature and enables the FCC unit to process high CCR feeds.Type: GrantFiled: March 25, 2022Date of Patent: August 22, 2023Assignee: Indian Oil Corporation LimitedInventors: Sandup Tshering Bhutia, Vineeth Venu Nath, Arvind Wamandas Mahant, Bandaru Hari Venkata Prasad Gupta, Ram Mohan Thakur, Madhusudan Sau, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
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Patent number: 11731919Abstract: An apparatus for preparing an oligomer including: a reactor supplied with a monomer stream and a solvent stream to perform an oligomerization reaction; a product discharge line provided on a lower portion of a side surface of the reactor; a washing liquid supply line connected to a first point of the product discharge line; and a washing liquid discharge line extending from a second point of the product discharge line, wherein the product discharge line includes a branch point at which the product discharge line is branched into two or more lines and a junction point at which the respective branched lines are joined, and the product discharge line includes pressure control devices provided in each of the two or more branched lines.Type: GrantFiled: July 1, 2021Date of Patent: August 22, 2023Assignee: LG Chem, Ltd.Inventors: Jong Hun Song, Jeong Seok Lee, Hong Min Lee, Moon Sub Hwang, Min Ho Sun, Kyung Seog Youk
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Patent number: 11724972Abstract: Processes for the direct alkylation of ethylene with isobutane or isopentane using a highly active ionic liquid alkylation catalyst are described. Ethylene is sent to a high-temperature alkylation reactor loop, and C3, C4, and C5 olefins are routed to a low temperature alkylation reactor loop. In each reactor, the olefins are contacted with an excess of isobutane or isopentane in the presence of a highly active ionic liquid catalyst. Portions of the reactor effluent streams are fed to a common downstream catalyst separation and product fractionation sections. The remainder of the reactor effluent is recycled back to the respective alkylation reactor.Type: GrantFiled: September 28, 2022Date of Patent: August 15, 2023Assignee: UOP LLCInventors: Matthew C. Cole, Dominic P. Weber, Rajeswar R. Gattupalli, Hye Kyung Timken, Huping Luo, Bong Kyu Chang, Rebecca Mudrock
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Patent number: 11717813Abstract: A method for preparing a zeolite catalyst for catalytic cracking of hydrocarbons to produce propylene is provided, which specifically includes steps of mixing a silicon source, a templating agent, an aluminium source, and a solvent to form a zeolite precursor solution, which is then subjected to hydrothermal crystallization, washing, drying, and calcination to obtain a zeolite precursor; ion-exchanging the zeolite precursor with ammonium ions, followed by drying and calcination; and loading aluminum onto the ion-exchanged zeolite precursor as a carrier via incipient-wetness impregnation by using an aluminium-containing solution, followed by drying and calcination. Zeolite catalysts prepared by the method and use of the catalysts in catalytic cracking of hydrocarbons to produce propylene are also provided.Type: GrantFiled: August 18, 2022Date of Patent: August 8, 2023Assignee: Henan UniversityInventors: Yajie Tian, Xinyu He, Congzhen Qiao
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Patent number: 11718572Abstract: A method for operating an integrated system for producing olefins may include contacting a hydrogenation feed with a first hydrogenation catalyst to produce a hydrogenated effluent, the hydrogenation feed including at least a portion of a first process effluent from a first olefin production process and at least a portion of a second process effluent from a second olefin production process. The hydrogenation feed may include at least hydrogen, ethylene, carbon monoxide, acetylene, methyl acetylene, and propadiene, and the first hydrogenation catalyst may be a hydrogenation catalyst having a temperature operating range of at least 40° C. The hydrogenated effluent may include methyl acetylene, propadiene, or both. The method may further include contacting at least a portion of the hydrogenated effluent with a second hydrogenation catalyst, which may cause hydrogenation of at least a portion of the methyl acetylene and propadiene to produce an MAPD hydrogenated effluent.Type: GrantFiled: June 8, 2020Date of Patent: August 8, 2023Assignee: Dow Global Technologies LLCInventors: Lin Luo, Hangyao Wang, Yu Liu, Barry B. Fish
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Patent number: 11701645Abstract: A catalyst comprising a microporous crystalline metallosilicate having a Constraint Index of 12, or 10, or 8, or 6 or less, a binder, a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof, a Group 10 metal or a compound thereof, and, optionally, a Group 11 metal or a compound thereof; wherein the catalyst is calcined in a first calcining step before the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof; and wherein the first calcining step includes heating the catalyst to first temperatures of greater than 500° C.; and wherein the catalyst is calcined in a second calcining step after the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof wherein the second calcining step includes heating the catalyst to temperatures of greater than 400° C.Type: GrantFiled: October 10, 2019Date of Patent: July 18, 2023Assignee: ExxonMobil Chemical Patents Inc.Inventors: Larry L. Iaccino, Jeremy W. Bedard, Xiaoying Bao, Andrew P. Palermo, Nitish Mittal, Maria Milina, Doron Levin, William R. Gunther, Wenyih F. Lai, Tilman W. Beutel
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Patent number: 11691136Abstract: A method for producing an olefin oligomer is disclosed, in which an olefin oligomerization reaction is performed in the presence of an olefin oligomerization catalyst comprising (A) a chromium compound, (B) an amine compound of the general formula (1): (R1 to R4 represent a group such as a hydrocarbon group, Y represents a structure represented by —CR5R6—, R5 and R6 represent a group such as a hydrogen atom, and Z represents an integer of 1 to 10), and (C) a compound such as an organometal compound; and the olefin oligomerization catalyst.Type: GrantFiled: July 6, 2018Date of Patent: July 4, 2023Assignee: MITSUI CHEMICALS, INC.Inventors: Seiichi Ishii, Shinichiro Ichikawa, Terunori Fujita
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Patent number: 11691933Abstract: This disclosure provides an improved process for converting benzene/toluene via methylation with methanol/dimethyl ether for producing, e.g., p-xylene, comprising separating and recycling dimethyl ether from the methylation reaction product mixture effluent to the methylation reactor. High selectivity toward p-xylene, among others, can be achieved.Type: GrantFiled: March 18, 2020Date of Patent: July 4, 2023Assignee: ExxonMobil Chemical Patents Inc.Inventors: Seth M. Washburn, Hsu Chiang, Catherine M. Dorsi, Tan-Jen Chen
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Patent number: 11691931Abstract: The present disclosure relates to a catalyst system comprising i) (a) a bicyclic 2-[(phosphinyl)aminyl] cyclic imine chromium salt or (b) a chromium salt and a bicyclic 2-[(phosphinyl)aminyl] cyclic imine and ii) an organoaluminum compound. The present disclosure also relates to a process comprising: a) contacting i) ethylene; ii) a catalyst system comprising (a) a 2-[(phosphinyl)aminyl] cyclic imine chromium salt complex or (b) a chromium salt and a bicyclic 2-[(phosphinyl)aminyl] cyclic imine; ii) an organoaluminum compound, and iii) optionally an organic reaction medium; and b) forming an oligomer product in a reaction zone.Type: GrantFiled: August 18, 2022Date of Patent: July 4, 2023Assignee: Chevron Phillips Chemical Company, LPInventors: Steven M. Bischof, Orson L. Sydora, Daniel H. Ess, Uriah J. Kilgore, Doo-Hyun Kwon
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Patent number: 11691132Abstract: A modified Y-type molecular sieve has a rare earth content of about 4% to about 11% by weight on the basis of the oxide, a phosphorus content of about 0.05% to about 10% by weight on the basis of P2O5, a sodium content of no more than about 0.5% by weight on the basis of sodium oxide, a gallium content of about 0.1% to about 2.5% by weight on the basis of gallium oxide, and a zirconium content of about 0.1% to about 2.5% by weight on the basis of zirconia; and the modified Y-type molecular sieve has a total pore volume of about 0.36 mL/g to about 0.48 mL/g, a percentage of the pore volume of secondary pores having a pore size of 2-100 nm to the total pore volume of about 20% to about 40%.Type: GrantFiled: August 15, 2019Date of Patent: July 4, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Lingping Zhou, Qiuqiao Jiang, Shuai Yuan, Hao Sha, Mingde Xu, Zhenyu Chen, Weilin Zhang, Huiping Tian
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Patent number: 11685866Abstract: Disclosed is a method for producing low carbon olefins and/or aromatics from feedstock comprising naphtha. The method can include the following steps: a) feeding feedstock comprising naphtha into a fast fluidized bed reactor; b) contacting the feedstock with a catalyst under conditions to produce a gas product and spent catalyst; c) separating the gas product to produce a stream comprising primarily one or more low carbon olefins and/or one or more aromatics; d) transporting the spent catalyst to a regenerator; e) regenerating the spent catalyst in the regenerator to form regenerated catalyst; and f) returning the regenerated catalyst to the fast fluidized bed reactor.Type: GrantFiled: January 28, 2019Date of Patent: June 27, 2023Assignees: SABIC GLOBAL TECHNOLOGIES B.V., DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Yinfeng Zhao, Mao Ye, Zhongmin Liu, Hailong Tang, Jing Wang, Jinling Zhang, Tao Zhang, Talal Khaled Al-Shammari
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Patent number: 11685701Abstract: The present disclosure relates to a catalyst system comprising i) (a) an N2-phosphinyl bicyclic amidine chromium salt or (b) a chromium salt and an N2-phosphinyl bicyclic amidine and ii) an organoaluminum compound. The present disclosure also relate to a process comprising: a) contacting i) ethylene; ii) a catalyst system comprising (a) an N2-phosphinyl bicyclic amidine chromium salt complex or (b) a chromium salt and an N2-phosphinyl bicyclic amidine; ii) an organoaluminum compound, and iii) optionally an organic reaction medium; and b) forming an oligomer product in a reaction zone.Type: GrantFiled: September 27, 2022Date of Patent: June 27, 2023Assignee: Chevron Phillips Chemical Company, LPInventors: Steven M. Bischof, Orson L. Sydora, Daniel H. Ess, Uriah J. Kilgore, Doo-Hyun Kwon
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Patent number: 11674088Abstract: A process for treating a plastic waste and a spent caustic, the process comprising the steps of mixing a feed plastic and a spent caustic stream in a feed mixer to produce a mixed feed, wherein the feed plastic comprises the plastic waste in the form of plastic waste chips; introducing the mixed feed to a hydrothermal reactor; reacting the mixed feed in the hydrothermal reactor to produce an effluent, wherein chlorine is removed from the plastic waste in the presence of the sodium hydroxide, wherein the chlorine reacts with sodium hydroxide to produce sodium chloride and water; introducing the effluent to a washing and dewatering unit, wherein the effluent comprises liquid phase materials and solid materials, wherein the solid materials comprise dechlorinated plastics; and separating the liquid phase materials and solid materials in the washing and dewatering unit to produce a dechlorinated plastic waste and a neutralized wastewater.Type: GrantFiled: September 7, 2022Date of Patent: June 13, 2023Assignee: Saudi Arabian Oil CompanyInventor: Ki-Hyouk Choi
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Patent number: 11667590Abstract: Process for producing alpha olefins comprising contacting ethylene, a zirconium based catalyst system comprising, a hydrocarbylmetal compound, a chain transfer agent, and optionally an organic reaction medium. Chain transfer agents which can be utilized include a) hydrogen, b) a compound comprising a hydrogen silicon bond, a compound having a hydrogen sulfur bond, a compound having a hydrogen phosphorus bond, or c) a transition metal compound chain transfer agent.Type: GrantFiled: May 26, 2021Date of Patent: June 6, 2023Assignee: Chevron Phillips Chemical Company, LPInventors: Brooke L. Small, Orson L. Sydora, Ronald D. Knudsen
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Patent number: 11666879Abstract: Disclosed herein are systems and processes for the conversion of a methane feedstock to C2+ hydrocarbons.Type: GrantFiled: April 18, 2019Date of Patent: June 6, 2023Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Wugeng Liang, Sagar Sarsani, David West, James Kauffman, Jonathan Banke, Hector Perez, Robert C. Schucker, Tian Gu, Vemuri Balakotaiah
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Patent number: 11642657Abstract: The present invention relates to a process for the production of butadiene by condensation of ethanol using a catalyst containing sillica-supported elements from group 3A and group 4B of the periodic table. The catalyst of the present invention has high activity and selectivity to butadiene in the synthesis reaction of said olefin from ethanol.Type: GrantFiled: September 12, 2022Date of Patent: May 9, 2023Assignees: Petróleo Brasileiro S.A.—Petrobras, Instituto Nacional De Tecnologia—INTInventors: Carlos Rene Klotz Rabello, Alexandre Gaspar De Barros, Luciano Honorato Chagas, Lucia Gorenstin Appel, Priscila Da Costa Zonetti, Michelly Távora Rodrigues
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Patent number: 11643378Abstract: A process and apparatus reboil a propylene splitter bottoms by heat exchange and/or a deethanizer bottoms stream with a compressed propylene splitter overhead stream. Use of single splitter compressor and operation of the propane-propylene splitter column at lower pressure are enabled, whereas conventionally two splitter compressors and higher splitter pressure were necessary to provide a propylene product stream and a propane recycle stream of equivalent quality.Type: GrantFiled: February 11, 2022Date of Patent: May 9, 2023Inventors: Xin X Zhu, Stephen T. King, Glen John Pomorski, Joseph Edward Zimmerman