Patents Examined by Sharon Pregler
  • Patent number: 11370727
    Abstract: A benzene selective hydrogenation reaction system and a method are provided. The system includes a benzene refiner, a first hydrogenation reactor, a second hydrogenation reactor and a separator which are connected in sequence. The first hydrogenation reactor is provided with a first inlet and a first outlet, and the second hydrogenation reactor is provided with a second inlet and a second outlet. The first inlet is connected to the discharge port of the benzene refiner; the first outlet is connected to the second inlet; the second outlet is connected to the separator. The catalyst outlet is connected to the first hydrogenation reactor for recycling the catalyst into the first hydrogenation reactor. Two micro-interface units are respectively disposed within the first hydrogenation reactor and the second hydrogenation reactor, and the micro-interface units are used for dispersing and breaking hydrogen into micro-bubbles with a micron-scale diameter.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: June 28, 2022
    Inventors: Zhibing Zhang, Zheng Zhou, Feng Zhang, Lei Li, Weimin Meng, Baorong Wang, Gaodong Yang, Huaxun Luo, Guoqiang Yang, Hongzhou Tian, Yu Cao
  • Patent number: 11364482
    Abstract: A catalyst, methods of making, and process of dehydrogenating paraffins utilizing the catalyst. The catalyst includes at least 20 mass % Zn, a catalyst support and a catalyst stabilizer. The catalyst is further characterizable by physical properties such as activity parameter measured under specified conditions. The catalyst may also be disposed on a porous support in an attrition-resistant form and used in a fluidized bed reactor.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: June 21, 2022
    Assignee: Exelus, Inc.
    Inventors: Mitrajit Mukherjee, Vamsi M. Vadhri, Narendra Joshi, Grace Brock
  • Patent number: 11358917
    Abstract: Systems and processes for producing isomerized alkenes are disclosed. The systems mainly include an isomerization unit, a dehydrogenation unit, and a MTBE synthesis unit. A hydrocarbon stream is fed into the isomerization unit to form iso-alkanes in a sulfur free hydrocarbon stream. The sulfur free hydrocarbon stream is heated and then combined with a sulfur-containing hydrocarbon stream comprising sulfur containing compounds to form a reactant feed stream to the dehydrogenation unit. The iso-alkanes is dehydrogenated to form iso-alkenes. The formed iso-alkenes comprising isobutylene can be used as a feed stock for the MTBE synthesis unit.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 14, 2022
    Inventors: Khaja Aliuddin Sharif, Mohammed Bismillah Ansari, Guillermo Leal
  • Patent number: 11358914
    Abstract: A process comprising A) continuously introducing into a reaction zone i) ethylene, ii) an iron salt, iii) a pyridine bisimine, iv) an organoaluminum compound, and v) an organic reaction medium, and B) forming an oligomer product in the reaction zone, the reaction zone having i) an iron of the iron salt concentration in a range of 5×10?4 mmol/kg to 5×10?3 mmol/kg, ii) an aluminum of the organoaluminum compound to iron of the iron salt molar ratio in a range of 300:1 to 800:1, ii) an ethylene partial pressure in a range of 750 psig to 1200 psig, iv) an ethylene to organic reaction medium mass ratio in a range of 0.8 to 4.5, v) a temperature in a range of 75° C. to 95° C., and optionally vi) a hydrogen partial pressure of at least 5 psi.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: June 14, 2022
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Steven M. Bischof, Brooke L. Small
  • Patent number: 11358916
    Abstract: Described is a process for producing field butane. The process includes increasing the n-butane concentration in field butane. The process may include a concentration process that includes distillation and a thermal cracking process.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 14, 2022
    Inventors: Vijay Dinkar Bodas, Sultan Al-Otaibe, Guillermo Leal, Mohammed Bismillah Ansari
  • Patent number: 11358912
    Abstract: A novel catalyst composition and its use in the oligomerization reactions of light alkenes to higher molecular weight hydrocarbons. The catalyst comprises boron added to an Al-containing or Ga-containing or Fe-containing support. The catalyst composition is an active and selective catalyst for the catalytic oligomerization reactions of light alkenes to higher molecular weight hydrocarbons.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: June 14, 2022
    Inventors: Jeffrey T. Miller, Rajamani Gounder, Fabio H. Ribeiro, Han-Ting Tseng, Philip M. Kester, Young Gul Hur, Yoon Rae Cho
  • Patent number: 11352568
    Abstract: Systems are provided that permit temperature control of a catalyst bed for conversion of alcohols to fuel hydrocarbons by modulating the water content of the alcohol feed stream provided to the catalyst bed. In some embodiments a secondary catalyst bed is provided for the conversion of light hydrocarbons found in the initial hydrocarbon product to fuel hydrocarbons that are liquid at ambient temperature and pressure.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: June 7, 2022
    Assignee: Vertimass, LLC
    Inventors: Charles E Wyman, John R Hannon
  • Patent number: 11339339
    Abstract: A natural gas processing system is configured to process a two-phase flow in a natural gas transportation system. The natural gas processing system has an off-gas compression package with a compressor suction drum, joined to a stabilizer and to a first stage compressor. A first stage off-gas after cooler is joined to the compressor suction drum and a second stage off-gas suction drum. The second stage off-gas suction drum is operatively coupled to a two-phase separator. A second stage compressor is joined to the second stage off-gas suction drum and a second stage off-gas after cooler. The second stage off-gas after cooler is operatively coupled to an acid gas removal system. The off-gas compression package separates the liquid phase from an off-gas phase.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: May 24, 2022
    Inventors: Mehdi Nouri, Eberhard Lucke
  • Patent number: 11332419
    Abstract: Synthesizing an alkane includes heating a mixture including an alkene and water at or above the water vapor saturation pressure in the presence of a catalyst and one or both of hydrogen and a reductant, thereby hydrogenating the alkene to yield an alkane and water, and separating the alkane from the water to yield the alkane. The reductant includes a first metal and the catalyst includes a second metal.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 17, 2022
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Kirtland Robinson, Ian Gould, Christiana Bockisch, Everett Shock, Hilairy Hartnett, Lynda B. Williams
  • Patent number: 11331645
    Abstract: A filter media composition includes a ferrihydrite material having an average pore size (BJH) in a range from 1 to 3 nm and a surface area (BET) of at least 200 m2/g or at least 250 m2/g or at least 300 m2/g.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: May 17, 2022
    Assignee: 3M Innovative Properties Company
    Inventor: Matthew A. Rankin
  • Patent number: 11332420
    Abstract: Processes are described for isomerizing one or more C14-C24 alpha olefins to produce an isomerization mixture comprising one or more C14-C24 internal olefins comprising contacting an olefinic feed comprising the one or more C14-C24 alpha olefins with a catalyst under isomerization conditions, wherein the catalyst comprises a microporous crystalline aluminosilicate having an MWW framework. The resulting isomerization mixture typically exhibits a low pour point with maintained biodegradability properties as compared to the olefinic feed, and is particularly useful in drilling fluid and paper sizing compositions.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: May 17, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ronald Raymond Hill, Jr., Renyuan Yu, Elizabeth G. Mahoney, Anatoly I. Kramer, Wenyih F. Lai, Paul F. Keusenkothen, Nan Hu, Andrew P. Broenen, James R. Lattner
  • Patent number: 11312671
    Abstract: The selective dimerization of isoolefins, such as isobutene or isopentane, or mixtures thereof, may be conducted in a system including a series of fixed bed reactors and a catalytic distillation reactor. The system may provide for conveyance of the fixed bed reactor effluents, without componential separation, to a downstream reactor. It has been found that a high selectivity to the dimer may be achieved even though intermediate separation of the desired product from unreacted components between reactors is not performed. Further, embodiments provide for use of a divided wall column for recovery of a high purity dimer product, reducing unit piece count and plot size.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: April 26, 2022
    Inventors: Rosette Barias, Liang Chen, Michael Jon Scott
  • Patent number: 11312669
    Abstract: A process for olefin oligomerization can include: contacting a feedstock comprising at least one C3 to C20 olefin/paraffin under oligomerization conditions in the presence of a Si/Al ZSM-23 catalyst having no amine treatment and a Si/Al2 molar ratio of 20 to 60 and/or a Si/Al/Ti ZSM-23 catalyst having no amine treatment, a Si/Al2 molar ratio of 20 to 60, and a Ti/Al molar ratio of 0.1 to 3; and recovering an oligomeric product comprising dimers having a branching index of less than 2.1, trimers having a branching index of less than 2.1, and tetramers having a branching index of less than 2.1.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 26, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Shiwen Li, Alan A. Galuska, Jennifer A. Carvajal Diaz, Mika L. Shiramizu, Wenyih F. Lai, Lara A. Truter
  • Patent number: 11306047
    Abstract: An isomerization method consists of a deisobutanizer column receives feed comprising n-butane. The deisobutanizer column delivers its bottoms a portion to a reboiler and another portion along with hydrogen is routed to a isomerization reactor and the reactor effluent is returned to the column. A stabilizer which is integrated with the column, an overhead stream used as a reflux and bottoms containing an iso-butane-rich stream that is the iso-butane product stream. The column overhead effluent is routed to separator, which splits the hydrocarbons and effluent, where the hydrocarbons are routed to deisobutanizer column and effluent recycled to stabilizer, where the stabilizer separates the reactor effluent into product streams contains an iso-butane product stream, a n-butane product stream, and a lighter hydrocarbon product stream.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 19, 2022
    Inventors: Mikhail Andreevich Suprunov, Oleg Valerievich Giiazov, Dmitry Nikolaevich Shalupkin, Andrei Aleksandrovich Karmanovskii, Nikolai Vladimirovich Litvinenko, Sergey Yurievich Devyatkov
  • Patent number: 11306041
    Abstract: Catalytic methods for synthesis of super linear alkenyl arenes and alkyl arenes are provided. The methods are capable of synthesizing super linear alkyl and alkenyl arenes from simple arene and olefin starting materials and with high selectivity for linear coupling. Methods are also provided for making a 2,6-dimethylnapthalene (DMN) or 2,6-methylethylnapthalene (MEN).
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 19, 2022
    Assignee: University of Virginia Patent Foundation
    Inventors: William Schinski, Alan Goldman, Thomas B. Gunnoe, Michael S. Webster-Gardiner, Nichole Schwartz
  • Patent number: 11299443
    Abstract: Systems and methods are provided for oligomerization of olefins to distillate boiling range products while also recycling naphtha boiling range olefins as part of the feed. By performing the olefin oligomerization while also recycling naphtha boiling range olefins, it has been discovered that the resulting distillate boiling range products can have an unexpected improvement in diesel combustion quality, such as an unexpected improvement in cetane rating. In order to manage coke formation and maintain consistent activity profile for the oligomerization catalyst, the reaction can be performed in a moving bed reactor. Additional temperature control can be maintained by the recycling of the naphtha boiling range portions of the oligomerization product back to the reactor.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: April 12, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Arsam Behkish, Lei Zhang, Brandon J. O'Neill, Mark A. Deimund, Alice Lin
  • Patent number: 11299444
    Abstract: Processes are provided for the removal of hydrogen from a mixture. The process can be performed by contacting a mixture comprising hydrogen, oxygen, and one or more organic compounds with a synthetic zeolite to produce water or steam. The synthetic zeolite can include Si and Al and has a SiO2:Al2O3 molar ratio of greater than 4:1, an 8-membered ring zeolite having a framework type of AEI, AFT, AFX, CHA, CDO, DDR, EDI, ERI, IHW, ITE, ITW, KFI, MER, MTF, MWF, LEV, LTA, PAU, PWN, RHO, SFW or UFI, a degree of crystallinity of at least 80% as measured by ASTM D535-197, and at least 0.01 wt % of at least one catalytic metal, based on a weight of the synthetic zeolite, where the at least one catalytic metal can include Ru, Rh, Pd, Ag, Os, Ir, Pt, Au, Mo, W, Re, Co, Ni, Zn, Cr, Mn, Ce, Ga, alloys thereof, or mixtures thereof. At least 95% of the catalytic metal can be disposed within a plurality of pores of the synthetic zeolite.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 12, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Aaron Sattler, Michele L. Paccagnini, Pedro M. Serna Merino, Henry K. Klutse
  • Patent number: 11286217
    Abstract: A dehydrogenation process and apparatus contact a paraffinic stream with dehydrogenation catalyst to product olefinic product gases. The olefinic product gases are separated from spent dehydrogenation catalyst and contained in a confined space that has a smaller volume than the reactor particularly at the same elevation. The containment of the olefinic product gases facilitates quenching the olefinic product gases to terminate reaction and improve selectivity to propylene.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: March 29, 2022
    Assignee: UOP LLC
    Inventors: Lev Davydov, Richard A. Johnson, II
  • Patent number: 11285406
    Abstract: An apparatus for filtering and degassing a plastic melt, in particular of a thermoplastic plastic melt, comprising a feeding extruder (11) which comprises at least one extrusion worm (13) which is rotatable in a housing, wherein the feeding extruder opens into the feeding region of one or several parallel melt filter modules (31) and a discharge extruder (21) with at least one extrusion worm (23) is situated in the discharge region of the melt filter(s), said discharge extruder being operated in the opposite direction of the feeding extruder in such a way that the worm tip (24) acts as the intake zone and the region near the drive acts as the discharge zone, wherein, for discharging the melt, a discharge aperture (27) in the housing is provided before the drive (22) of the discharge extruder, wherein the shaft of the extrusion worm of the discharge extruder is sealed against the drive of the discharge extruder with a sealing element (26) and wherein the feeding extruder opens into melt valves (25) and/or melt
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: March 29, 2022
    Assignee: Next Generation Analytics GmbH
    Inventor: Friedrich Kastner
  • Patent number: 11285427
    Abstract: The invention includes methods for removing higher acetylenes from a gaseous stream that includes a hydrogen fraction and a non-hydrogen fraction, wherein the gaseous stream includes less than about 4% in total of diacetylene and vinylacetylene, where the method includes the following steps: (i) an adsorption that passes the gaseous stream at a preselected superficial linear gas velocity across an adsorption bed supported within an enclosure, the adsorption bed containing a crystalline porous ceramic adsorbent to adsorb the higher acetylenes onto the adsorbent, thereby producing a saturated adsorption bed and a purified gaseous stream including less than about 25 ppm of diacetylene that regenerates the saturated adsorbent bed by passing a regeneration gas across the saturated adsorption bed to desorb the higher acetylenes retained thereupon, thereby producing a regenerated adsorbent bed and a contaminated gas stream bearing the higher acetylenes; and (iii) a purging step that removes the contaminated gas stre
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: March 29, 2022
    Assignee: Transform Materials LLC
    Inventors: Alexander Olson Santana, James Nathan Ashcraft, David S. Soane