Patents Examined by Thuan D. Dang
  • Patent number: 10435340
    Abstract: A process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising introducing a feed stream comprising said mixture into a first distillation column, introducing a first stream comprising a heavy solvent above the feed stream into the first distillation column, introducing an aqueous stream below the feed stream into the first distillation column.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 8, 2019
    Inventors: Attapong Thirasak, Alisa Kammafoo, Wiroon Tanthapanichakoon, Zhongyi Ding, Sachin Joshi, Cole Nelson, Arnat Prombunglum
  • Patent number: 10434458
    Abstract: Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve passing an input feed stream through two swing adsorption systems as a purge stream to remove contaminants, such as water, from the respective adsorbent bed units. The wet purge product stream is passed to a solvent based gas treating system, which forms a wet hydrocarbon rich stream and a wet acid gas stream. Then, the wet hydrocarbon rich stream and the wet acid gas stream are passed through one of the respective swing adsorption systems to remove some of the moisture from the respective wet streams.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 8, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Robert D. Denton, Ananda K. Nagavarapu, Bruce T. Kelley, Robert A. Johnson, Bennett D. Marshall
  • Patent number: 10428277
    Abstract: A device for processing scrap rubber has a reactor with a screw conveyor disposed inside a heating chamber, a thermal decomposition unit, burners, a condenser, a cyclone filter, and devices for discharging solid residue and removing a gas-vapor mixture. The reactor has two sections connected in parallel. The thermal decomposition unit has screw conveyors in each section, the conveyors have axial heating pipes with a coil. Along the length of the conveyors plates are arranged at the corners of an equilateral triangle in contact with and perpendicular to the side surface of the heating tube. A cylinder furnace with an evaporator and a burner is connected to the ends of the pipes. An outlet of the condenser is connected to a liquid fraction separator, inlets of the coils are connected to an outlet of the evaporator, and an inlet of the evaporator is connected to an outlet from the separator.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 1, 2019
    Assignee: OOO “Nauchno-Proizvodstvennoe Obedinenie Innovatekh”
    Inventors: Aleksei S. Gradov, Evgeny S. Susekov, Sergei P. Susekov
  • Patent number: 10428284
    Abstract: Disclosed are Group III base stocks comprising greater than or equal to about 90 wt. % saturated hydrocarbons (saturates); a viscosity index from 120 to 145; a unique ratio of molecules with multi-ring naphthenes to single ring naphthenes (2R+N/1RN); a unique ratio of branched carbons to straight chain carbons (BC/SC); a unique ratio of branched carbons to terminal carbons (BC/TC); and unique MRV behavior as a function of base stock naphthene ratio (2R+N/1RN). A method for preparing the base stocks is also disclosed. Also disclosed is a lubricating oil having the base stock as a major component, and an additive as a minor component.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 1, 2019
    Inventors: Daniel J. Eichelsdoerfer, Richard C. Dougherty, Charles L. Baker, Jr., Debra A. Sysyn
  • Patent number: 10414702
    Abstract: Process for separating xylenes starting from a feed comprising cuts of isomers of aromatic hydrocarbons containing 8 carbon atoms, in a simulated moving bed, by selective adsorption of a xylene isomer in the presence of a desorbent, by means of particles of agglomerated zeolitic adsorbent based on zeolite crystals with a number-average diameter less than or equal to 1.2 ?m, wherein the number-average diameter of said particles of adsorbent is between 150 ?m and 500 ?m and the mechanical strength measured by the Shell method series SMS1471-74 adapted for agglomerates with a size below 500 ?m is greater than or equal to 2 MPa.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: September 17, 2019
    Assignees: IFP ENERGIES NOUVELLES, Arkema France
    Inventors: Catherine Laroche, Damien Leinekugel Le Cocq, Philibert LeFlaive, Frederic Augier, Ludivine Bouvier, Cecile Lutz, Sylvie Szendrovics, Quitterie Persillon
  • Patent number: 10399913
    Abstract: In a process for upgrading paraffins and olefins, a first feed comprising C14? olefins is contacted with an oligomerization catalyst in a first reaction zone under conditions effective for oligomerization of olefins to higher molecular weight hydrocarbons. Deactivated catalyst is removed from the first reaction zone at a first temperature and is contacted with an oxygen-containing gas and a hydrocarbon-containing fuel in a regeneration zone to regenerate the catalyst and raise the temperature of the catalyst to a second, higher temperature. A second feed comprising C14? paraffins is contacted with the regenerated catalyst in a second reaction zone to convert at least some of the paraffins in the second feed to a reaction effluent comprising olefins, aromatic hydrocarbons and regenerated catalyst; and the reaction effluent is supplied to the first reaction zone. A system for performing such a process and a product of such a process are also provided.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 3, 2019
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mohsen N. Harandi, John Dusseault
  • Patent number: 10384991
    Abstract: The presently disclosed subject matter relates to methods and systems for purifying 1,3-butadiene from a C4 hydrocarbon stream. An example method includes introducing a C4 hydrocarbon stream including 1,3-butadiene and acetlyenes to an organic azide in the presence of a catalyst to generate a first stream including triazole, separating triazole from the first stream to produce a second stream including 1,3-butadiene, and distilling 1,3-butadiene from the second stream to produce a purified 1,3-butadiene product stream.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: August 20, 2019
    Inventors: Kuldeep Wadhwa, Antonio Matarredona, Radu Ignat, Sekhar Mamilla, Christoph Roosen, Alex Londono
  • Patent number: 10351786
    Abstract: 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: Grant
    Filed: September 15, 2017
    Date of Patent: July 16, 2019
    Assignee: Lummus Technology Inc.
    Inventors: Liang Chen, Peter Loezos, Rama Rao Marri, Bryan Tomsula, Jon A. Hood, Hardik Singh, Michael Dorsey, Justin Breckenridge
  • Patent number: 10350538
    Abstract: In various aspects, methods are provided for hydrogen production while reducing and/or mitigating emissions during various refinery processes that produce syngas, such as power generation. Syngas can be effectively separated to generate high purity carbon dioxide and hydrogen streams, while reducing and/or minimizing the energy required for the separation, and without needing to reduce the temperature of the flue gas. In various aspects, the operating conditions, such as high temperature, mixed metal oxide adsorbents, and cycle variations, for a pressure swing adsorption reactor can be selected to minimize energy penalties while still effectively capturing the CO2 present in syngas.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: July 16, 2019
    Inventors: Narasimhan Sundaram, Hans Thomann, David C. Calabro, Frank Mittricker
  • Patent number: 10350537
    Abstract: Methods are provided for the production of nitrogen, hydrogen, and carbon dioxide from an exhaust gas. Exhaust gas from combustion in a fuel rich (or reducing) atmosphere is primarily composed of CO2, CO, N2, H2O, and H2. CO may be converted to CO2 and H2 via the water gas shift reaction. Carbon dioxide may then be effectively separated from nitrogen and hydrogen to produce a carbon dioxide stream and a nitrogen/hydrogen stream. The nitrogen/hydrogen stream may then be effectively separated to produce a high purity nitrogen stream and a high purity hydrogen stream. The process may be done in any order, such as separating the nitrogen first or the carbon dioxide first.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: July 16, 2019
    Inventors: Narasimhan Sundaram, Hans Thomann
  • Patent number: 10343957
    Abstract: Oxidative dehydrogenation is an alternative to the energy extensive steam cracking process presently used for the production of olefins from paraffins, but has not been implemented commercially partially due to the unstable nature of hydrocarbon/oxygen mixtures, and partially due to the cost involved in the construction of new facilities. An oxidative dehydrogenation chemical complex designed to reduce costs by including integration of an oxygen separation module that also addresses safety concerns and reduces emission of greenhouse gases is described.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 9, 2019
    Assignee: NOVA Chemical (International) S.A.
    Inventors: Kamal Serhal, Vasily Simanzhenkov, Shahin Goodarznia, David Gent, Mark Williamson
  • Patent number: 10336663
    Abstract: The present invention discloses processes for oligomerizing an olefin feedstock containing C4 to C20 alpha olefins using a catalyst system containing a metallocene compound, an organoaluminum compound, and a suspension of a chemically-treated solid oxide. The liquid medium for the suspension of the chemically-treated solid oxide can be an alpha-olefin oligomer product formed by the oligomerization process.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 2, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Graham R. Lief, Eric J. Haschke, Pasquale Iacono
  • Patent number: 10329494
    Abstract: The present disclosure relates to a system and a process for producing biofuel. The system comprises at least one feed tank; a low pressure pump; a high pressure pump; a first heat exchanger; a second heat exchanger; a reaction vessel; a precipitation vessel; a first pressure let-down station; a third heat exchanger; a second pressure let-down station; a gas-liquid separator; and a biofuel separator. The process comprises pressurizing and heating a feed, followed by reforming the pressurized and heated feed to obtain a slurry. The solids are separated from the slurry by precipitation to obtain a mixture comprising biofuel and the non-reformed feed. The mixture is then cooled and de-pressurized, followed by separation of gases and the non-reformed feed to obtain the biofuel. The system and process of the present disclosure can be used to produce biofuel from diverse, easily available and inexpensive starting material.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: June 25, 2019
    Inventors: Ramesh Bhujade, Rajaram Shrimant Ghadge, Roshni Krishnarao Bahekar, Somesh Gupta, Nitin Nagwani, Piyush Jain, Nikhlesh Saxena, Pavan Kumar Konakandla
  • Patent number: 10329498
    Abstract: A process is presented for the purification of an olefins feed stream to a benzene alkylation unit. The process removes heavy aromatics in an adsorbent system comprising at least two adsorbent units. The unit passes the olefins feed stream to a first adsorbent unit, while the second adsorbent unit is either in regeneration mode, or standby mode. The process switches the feed stream to the second adsorbent unit and displaces the fluid in the second adsorbent unit, while maintaining the flow of the purified feed stream to the benzene alkylation unit.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 25, 2019
  • Patent number: 10322366
    Abstract: Wet-type carbon dioxide capturing equipment includes a CO2 absorption tower where CO2 of an exhaust gas reacts with an absorbent, a CO2 stripping tower where CO2 is separated from a rich solution absorbed the CO2 in the CO2 absorption tower, a reboiler for supplying thermal energy to the CO2 stripping tower to separate the CO2 from the rich solution in the CO2 stripping tower, a first heat exchanger for heating the rich solution by exchanging heat between a lean solution having the CO2 separated therefrom in the CO2 stripping tower and the rich solution, a mechanical vapor recompressor (MVR) for compressing a CO2 gas separated in the CO2 stripping tower, and a second heat exchanger for separating a portion of CO2 from the rich solution by heating the rich solution by exchanging heat between the CO2 gas compressed in the MVR and the rich solution passing through the first heat exchanger, in which the rich solution having CO2 that is not separated in the second heat exchanger is input to the CO2 stripping tower
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 18, 2019
    Inventors: Young Ill Lee, Tea Young Lim, Seong Pill Cho, Eun Kyu Choi, Sung Mun Yoon
  • Patent number: 10322982
    Abstract: The present invention relates to energy saving method and apparatus for preparing styrene and alpha-methylstyrene concurrently, by which economic feasibility may be improved by reusing energy during preparing styrene and alpha-methylstyrene concurrently.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Mi-Kyung Kim, Jae-Ik Lee, Jong-Ku Lee, Jeong-Seok Lee
  • Patent number: 10300459
    Abstract: A process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system having a Group 4 or Group 5 metal oxide and a support. The process includes obtaining a product stream containing butadiene from the dehydration reactor. Another process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system containing a tungsten oxide supported on a zeolite or a tantalum oxide supported on a zeolite. The process includes obtaining a product stream containing butadiene from the dehydration reactor.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 28, 2019
    Inventors: Sivadinarayana Chinta, Kaushik Gandhi
  • Patent number: 10301894
    Abstract: An experimental device of polyphase separation of natural gas hydrate drilling fluid, and method of use thereof, comprising a solid-phase separator, a liquid injection module, a gas injection module and a gas-liquid separator. The solid-phase separator comprises a first filter device and a second filter device, the gas injection module injects gas into the solid-phase separator while the liquid injection module injects liquid into the solid-phase separator, and the gas-liquid separator is communicated with the solid-phase separator through a pressure control valve.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: May 28, 2019
    Inventors: Xiaosen Li, Yu Zhang, Yi Wang, Gang Li, Ningsheng Huang, Zhaoyang Chen
  • Patent number: 10294172
    Abstract: Provided here are processes and systems for conversion of alkyl-bridged non-condensed alkyl multi-aromatic compounds to alkyl mono-aromatic compounds. One system includes a hydrodearylation reactor adapted to receive a hydrogen stream and a feed stream and to produce a reactor effluent stream in presence of a catalyst. The feed stream contains one or more of heavy alkyl aromatic compounds and one or more alkyl-bridged non-condensed alkyl multi-aromatic compounds. The reactor effluent stream contains one or more alkyl mono-aromatic compounds. The system also includes a first separator fluidly coupled to the hydrodearylation reactor and adapted to receive the reactor effluent stream and to produce a hydrodearylated gas stream and a hydrodearylated liquid stream. The system also includes a second separator fluidly coupled to the first separator and adapted to receive a portion of the hydrodearylated gas stream and to produce a hydrocarbon liquid stream and a vapor stream rich in hydrogen.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: May 21, 2019
    Inventors: Bruce Richard Beadle, Vinod Ramaseshan, Rakan Sulaiman Bilaus, Omer R. Koseoglu, Robert P. Hodgkins
  • Patent number: 10294175
    Abstract: Disclosed is a process for the conversion of acyclic C5 feedstock to a product comprising cyclic C5 compounds, such as for example, cyclopentadiene, and catalyst compositions for use in such process. The process comprising the steps of contacting said feedstock and, optionally, hydrogen under acyclic C5 conversion conditions in the presence of a catalyst composition to form said product. The catalyst composition comprising a crystalline aluminosilicate having a constraint index of less than or equal to 5, and a Group 10 metal, and, optionally, a Group 11 metal, in combination with a Group 1 alkali metal and/or a Group 2 alkaline earth metal.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 21, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Jeremy W. Bedard, Karl G. Strohmaier, Machteld M. W. Mertens, Robert T. Carr, Jane C. Cheng