Patents Examined by Ali Z Fadhel
  • Patent number: 11597689
    Abstract: A process and system for the conversion of a feedstock comprising C3-C5 light alkanes to a C5+ hydrocarbon product, for example, a BTX-rich hydrocarbon product, by performing the alkane activation (first-stage) and the oligomerization/aromatization (second-stage) in separate stages, which allows each conversion process to occur at optimal reaction conditions thus increasing the overall hydrocarbon product yield. The alkane activation or first-stage is operated at a higher temperature than the second-stage since light alkanes are much less reactive than light olefins. Since aromatization of olefins is more efficient at higher pressure, the second-stage is maintained at a higher pressure than the first-stage. Further, fixed-bed catalysts are used in each of the first-stage and the second-stage.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: March 7, 2023
    Assignee: Phillips 66 Company
    Inventors: Jianhua Yao, Hong Xie, Jonathan Marda, Dhananjay Ghonasgi, Sourabh Pansare
  • Patent number: 11583843
    Abstract: 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 relate 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: Grant
    Filed: November 8, 2021
    Date of Patent: February 21, 2023
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Steven M. Bischof, Orson L. Sydora, Daniel H. Ess, Uriah J. Kilgore, Doo-Hyun Kwon
  • Patent number: 11578019
    Abstract: Systems and processes for dehydrogenating one or more alkanes using electrically heated dehydrogenation reactors. The source of electric energy or power can be a power grid, solar panel, windmill, hydropower, nuclear power, fuel cell, gas turbines, steam turbines, portable generator or the like. The systems and processes provided herein result in a simpler dehydrogenation process which is particularly beneficial at a small scale and at remote locations, including the well site.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: February 14, 2023
    Inventors: Rakesh Agrawal, Zewei Chen, Peter Oladipupo
  • Patent number: 11571687
    Abstract: The present invention pertains to a method for recovering a selective homogeneous hydrogenation catalyst and a method for reusing the recovered selective homogeneous hydrogenation catalyst. The method for recovering a selective homogeneous hydrogenation catalyst comprises: a step for synthesizing cyclododecene by selectively hydrogenating a first reaction solution containing cyclododecatriene, triphenylphosphine, formaldehyde, and ruthenium chloride, wherein a selective homogeneous hydrogenation catalyst is prepared during the selective hydrogenation reaction from the triphenylphosphine, formaldehyde, and ruthenium chloride to synthesize the cyclododecene; and a step for distilling and separating unreacted cyclododecatriene and cyclododecadiene, as well as the product cyclododecene, from a second reaction solution in which the cyclododecene synthesis has been completed, and recovering the selective homogeneous hydrogenation catalyst.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 7, 2023
    Inventors: Youngjin Kim, Namjin Jang, Kyuho Song
  • Patent number: 11572324
    Abstract: 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: Grant
    Filed: September 9, 2021
    Date of Patent: February 7, 2023
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Bruce E. Kreischer, Kendall M. Hurst, Eric D. Schwerdtfeger, Steven M. Bischof, Jared Fern, Kent E. Mitchell, James Hillier
  • Patent number: 11572323
    Abstract: The present invention relates to a process for the dimerization of alkenes comprising (1) providing a gas stream comprising one or more alkenes; and (2) contacting the gas stream provided in (1) with a catalyst for obtaining a mixture M1 comprising one or more dimerization products of the one or more alkenes, wherein the catalyst in (2) comprises a zeolitic material having a framework structure type selected from the group consisting of MOR, BEA, FER, MFI, TON, FAU, and mixtures of two or more thereof, wherein the framework structure of the zeolitic material comprises YO2, wherein Y stands for one or more tetravalent elements.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: February 7, 2023
    Assignee: BASF SE
    Inventors: Trees Maria De Baerdemaeker, Andrei-Nicolae Parvulescu, Ivana Jevtovikj, Craig Jon Cain-Borgman, Ulrich Mueller, Andreas Kuschel
  • Patent number: 11565983
    Abstract: Embodiments of a system and method are disclosed for obtaining high-energy fuels. In some embodiments, the system and method produces one or more fused cyclic compounds that can include one or more bridging points. The fused cyclic compounds are suitable for use as a high-energy fuels, and may be derived from biomass.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: January 31, 2023
    Assignee: Triad National Security, LLC
    Inventors: Andrew D. Sutton, Cameron M. Moore, Orion Staples, Troy A. Semelsberger, William L. Kubic, Jr.
  • Patent number: 11565984
    Abstract: Production apparatus of triptane includes: carbon dioxide recovery unit configured to recover carbon dioxide from air; hydrogen generation unit configured to electrolyze water by renewable electricity to generate hydrogen; carbon monoxide generation unit configured to generate carbon monoxide from recovered carbon dioxide and hydrogen generated; methanol generation unit configured to generate methanol from carbon monoxide generated and hydrogen generated; acetic acid generation unit configured to generate acetic acid by reacting methanol generated with recovered carbon dioxide or with carbon monoxide generated; acetone generation unit configured to generate acetone and carbon dioxide from acetic acid generated; pinacolone generation unit configured to generate pinacolone from acetone generated; Grignard reagent generation unit configured to generate Grignard reagent from methanol generated; trimethyl butanol generation unit configured to generate 2,3,3-trimethyl-2-butanol by reacting pinacolone generated with
    Type: Grant
    Filed: January 17, 2022
    Date of Patent: January 31, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventor: Kohtaro Hashimoto
  • Patent number: 11560344
    Abstract: A process (100) is proposed for the production of one or more olefins, in which a reaction feed containing oxygen and one or more paraffins is formed and in which a part of the oxygen in the reaction feed is reacted with a part of the one or more paraffins to form the one or more olefins by an oxidative process, to obtain a process gas, the process gas containing at least the unreacted part of the one or more paraffins and oxygen, the one or more olefins, one or more acetylenes, carbon dioxide and water.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 24, 2023
    Assignee: LINDE GmbH
    Inventors: Helmut Fritz, Andreas Meiswinkel, Martin Schubert, Mathieu Zellhuber, Nicole Schödel, Sonja Schulte, Anina Wöhl
  • Patent number: 11554365
    Abstract: Embodiments in accordance with the present invention encompass an organoruthenium compound of the formula (I) or formula (II): Wherein X, L, R1, R2, R3, R4, R5, Ar1 and Ar2 are as defined herein. Also disclosed herein are the use of organoruthenium compound of formula (I) or formula (II) as (pre)catalysts for the olefin metathesis reactions, as well as to the process for carrying out the olefin metathesis reaction.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 17, 2023
    Inventors: Rafał Gawin, Oleksandr Burtovyy, Larry F Rhodes
  • Patent number: 11548837
    Abstract: This invention relates to a self cleaning reactor and to a process for the oligomerization of ethylene that employs a self-cleaning reactor. The reactor includes a mass of inert, particulate cleaning bodies that are entrained by the liquid in the reactor and scour the internal surfaces of the reactor during normal operation. This scouring action reduces the level of fouling on the reactor surfaces. Foulant material (polyethylene) is removed from the process on a continuous basis but the cleaning bodies remain within the reactor.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: January 10, 2023
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Stephen Brown, Peter Zoricak, Eric Clavelle
  • Patent number: 11548838
    Abstract: The present invention provides a one-pot process of synthesis of phenyl naphthalene compounds that are employed as heat transfer agents. More particularly, the present invention provides a process of preparation of 1-phenylnaphthalene and 2-methyl-1-phenylnaphthalene using refinery spent catalyst. These molecules are known for application as synthetic heat transfer fluids that deliver outstanding performance and thermal stability at continuously high operating temperatures. The reaction is carried out in aqueous medium using a spent catalyst which is a palladium based charcoal catalyst as obtained from various refinery processes. Further, the present invention provides a heat resistant formulation using the synthesized polyhydrocarbons, wherein the formulation is optimized with a free radical scavenger.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: January 10, 2023
    Inventors: Tanmay Mandal, Krishna Vankudoth, Manisha Saraswat, Ajay Kumar Arora, Vivekanand Kagdiyal, Deepak Saxena, Sankara Sri Venkata Ramakumar
  • Patent number: 11541381
    Abstract: Ethylene oligomerization catalysts include a solid support having surface hydroxyl groups on a surface of the solid support. Functional groups attached to the solid support through at least one covalent bond and coordinated with at least one catalytically active transition metal. Individual functional groups are attached to the solid support as products of condensation reactions of at least one hydrolysable group of precursor ligands with a corresponding surface group of the solid support. The precursor ligands have a general formula (Ph2P)2N—R1-A, where R1 is C1-C40 hydrocarbylene or C1-C40 heterohydrocarbylene; and A is a hydrolysable group selected from trialkoxysilyl, halosilyl, carboxylates, esters, phosphonates, amines, imines, thiols, thiocarboxylates, or halides.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: January 3, 2023
    Assignee: Saudi Arabian Oil Company
    Inventor: Yagnaseni Ghosh
  • Patent number: 11541375
    Abstract: The invention relates to a composition containing a catalyst suitable for producing ethylene and other C2+ hydrocarbons at high selectivity while improving both methane conversion and product yield. Particularly, the catalyst contains mixed metal oxides having at least one alkali earth metal and at least one rare earth metal along with an alkali metal promoter in the form of an alkali metal or in the form of an alkali metal tungstate. The invention further provides a method for preparing such a composition, using a calcination process to calcine the alkali metal promoters together with mixed metal oxides. Additionally, the invention further describes a process for producing C2+ hydrocarbons, using such a composition.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: January 3, 2023
    Assignee: Sabic Global Technologies, B.V.
    Inventors: Wugeng Liang, David West, Hector Perez, Vidya Sagar Reddy Sarsani, Luanyi Elizabeth Li
  • Patent number: 11541374
    Abstract: A catalyst for non-oxidative dehydrogenation of alkanes and a method for making and using the same is disclosed. The catalyst can include vanadium oxide derived from vanadyl oxalate. More particularly the catalyst is prepared by a method comprising the steps of: (a) contacting a transition alumina support with an aqueous solution comprising a vanadium carboxylate material solubilized therein; (b) heating the contacted alumina support to remove the water and produce a catalyst precursor material in solid form; and (c) heating the solid catalyst precursor material in the presence of an oxidizing source at a temperature of 500 to 800° C. to produce an alumina supported catalytic material comprising vanadium oxide. The catalyst can be further modified with an alkali metal oxide like potassium oxide, the precursor thereof being introduced with the impregnation solution.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: January 3, 2023
    Inventors: Biju M. Devassy, Naresh Dhachapally, Nigit J. Meleppuram, Vinod S. Nair
  • Patent number: 11535577
    Abstract: The present disclosure relates to a process and a production unit that are used to catalytically manufacture olefin trimers from olefin monomers, and wherein olefin dimers are recycled after dimerization reaction, and reacted with olefin monomers in an addition reaction.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: December 27, 2022
    Assignee: NESTE OYJ
    Inventors: Antti Pyhälahti, Jaana Kanervo
  • Patent number: 11529622
    Abstract: Catalyst systems suitable for tetramerizing ethylene to form 1-octene may include a catalyst including a chromium compound coordinated with a ligand and a co-catalyst including an organoaluminum compound. The ligand may have a chemical structure: (R1)(R2)A-X—C(R3)(R4). A and C may be phosphorus. X may be B(R5), Si(R5)2, N(R5), wherein R5 is an aryl group substituted with a halogen, halogenated alkyl or a silyl group, and wherein B, or N, or Si is bound to A and C. R1, R2, R3, and R4 may be independently chosen hydrocarbyl groups or heterohydrocarbyl groups.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: December 20, 2022
    Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
    Inventors: E A Jaseer, Samir Barman, Nestor Garcia Villalta, Motaz Khawaji, Wei Xu
  • Patent number: 11530171
    Abstract: In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure relates to a method for producing C4 olefins from acetylene using supported metal-based catalysts and metal-based promoters. The method is inexpensive, efficient, and environmentally sound. Additionally, the method is selective for C4 olefins and other value-added products based on changes to reaction parameters including temperature, feed gas composition, and promoter identity. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: December 20, 2022
    Assignee: West Virginia University
    Inventors: Jianli Hu, Qingyuan Li
  • Patent number: 11524282
    Abstract: A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging the solid acid catalyst in a reactor with a gas; continuously injecting n-hexane at a feed port of the reactor and heating the n-hexane to wash the solid acid catalyst, and discharging the n-hexane entraining benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, cleaning off a liquid in the reactor by purging with the gas, and cooling the reactor. In the regeneration method of the present disclosure, the regeneration liquid used is n-hexane, which can increase the solubility of the residues in channels and enhance the regeneration effect. Meanwhile, permanent damage to the channel structure of the catalyst caused by carbon burning regeneration can be avoided, thereby prolonging the lifetime of the catalyst.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 13, 2022
    Assignee: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Xiaolong Zhang, Hongcheng Cao, Yuan Gao, Xueting Wu
  • Patent number: 11518944
    Abstract: Provided in one embodiment is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil and optionally wax comprising a naphtha/diesel and heavy fraction, and char. The pyrolysis oil and wax is passed to a refinery FCC unit from which a liquid petroleum gas C3-C5 olefin/paraffin mixture fraction is recovered. The liquid petroleum gas C3-C5 olefin/paraffin mixture fraction is passed to a refinery alkylation unit, with a propane and butane fraction recovered from the alkylation unit. The propane and butane fraction is then passed to a steam cracker for ethylene production.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: December 6, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventor: Hye-Kyung Timken