Patents Examined by Thuan D. Dang
  • Patent number: 10675559
    Abstract: Method for the simulated moving bed separation of a feedstock (F), in which when a fluid/effluent (feedstock F, desorbent D, extract E, raffinate R) is injected/withdrawn into/from a chosen plate (Pi) using an external bypass line (Li?1/i, Li/i+1) connected to said chosen plate (Pi), the flow rate within the said external bypass line (Li?1/i, Li/i+1) is controlled in such a way that: a major proportion of the fluid/effluent (F, D, E, R) is injected/withdrawn into/from the chosen plate (Pi); and a minor proportion of the fluid/effluent (F, D, E, R) is injected/withdrawn into/from the adjacent plate (Pi?1, Pi+1) connected to the said external bypass line (Li?1/i, Li/i+1).
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: June 9, 2020
    Assignee: IFP Energies nouvelles
    Inventors: Damien Leinekugel Le Cocq, Gerard Hotier, Pierre-Yves Le Goff, Fabian Lambert
  • Patent number: 10668426
    Abstract: A process for producing an adsorption unit is disclosed, wherein an adsorber bed of the adsorption unit is filled with a bed of an adsorbent which is selected from a multitude of adsorbents by a test method, wherein, in the test method, a particle of each adsorbent is repeatedly laden with a sorbate and regenerated again, which converts the particle to an aged particle, and a fracture property B of the aged particle of each adsorbent is determined, wherein the adsorbent for the bed is selected depending on the fracture property B determined from the multitude of adsorbents.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 2, 2020
    Inventors: Matthias Grahl, Christian Voss, Helko Schneider, Philipp Keil
  • Patent number: 10669217
    Abstract: A process for hydrogenation of an aromatic hydrocarbon including introducing a hydrocarbon feed comprising the aromatic hydrocarbon, a hydrogen feed comprising hydrogen, and a hydrogenation catalyst into a hydrogenation reactor operable with a liquid phase and a gas phase to produce a hydrogenation product; removing a gas phase product stream comprising the hydrogenation product; withdrawing a portion of the liquid phase; subjecting the withdrawn portion to heat exchange to provide a reduced-temperature withdrawn portion; introducing the reduced-temperature withdrawn portion back into the hydrogenation reactor; and at least one of: (a) providing at least two heat exchangers to effect the subjecting of the withdrawn portion of the liquid phase to heat exchange; (b) separating a decomposition product of the hydrogenation catalyst, the hydrogenation catalyst, or both, from the withdrawn portion of the liquid phase prior to the heat exchange; and (c) reducing exposure of the hydrogenation catalyst to an oxygen-co
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: June 2, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Ryan W. Snell, Israel Garcia
  • Patent number: 10662126
    Abstract: Methods of simultaneously converting butanes and methanol to olefins over Ti-containing zeolite catalysts are described. The exothermicity of the alcohols to olefins reaction is matched by endothermicity of dehydrogenation reaction of butane(s) to light olefins resulting in a thermo-neutral process. The Ti-containing zeolites provide excellent selectivity to light olefins as well as exceptionally high hydrothermal stability. The coupled reaction may advantageously be conducted in a staged reactor with methanol/DME conversion zones alternating with zones for butane(s) dehydrogenation. The resulting light olefins can then be reacted with iso-butane to produce high-octane alkylate. The net result is a highly efficient and low cost method for converting methanol and butanes to alkylate.
    Type: Grant
    Filed: January 12, 2019
    Date of Patent: May 26, 2020
    Assignee: EXELUS, INC.
    Inventors: Mitrajit Mukherjee, Vamsi M. Vadhri, Narendra Joshi
  • Patent number: 10654770
    Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating diisobutylene to produce neopentane. The diisobutylene may be provided by the dimerization of isobutylene.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 19, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Kun Wang, Lorenzo C. DeCaul, James R. Lattner
  • Patent number: 10640437
    Abstract: Systems and methods for purifying crude propane streams are provided herein. For example, in some embodiments, methods are provided including passing a crude propane stream to a fixed bed reactor containing a Beta zeolite configured to reduce the propylene oxide content of the crude propane stream and produce a propylene-treated stream and contacting the propylene-treated stream with an acetaldehyde scavenger to produce a treated propane stream. In some embodiments, methods are provided including passing a crude propane stream through a water wash system to provide a treated propane stream having a lower propylene oxide content, a lower acetaldehyde content, or both.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: May 5, 2020
    Assignee: Lyondell Chemical Technology, L.P.
    Inventor: Majid Keyvani
  • Patent number: 10626064
    Abstract: Processes for producing neopentane are disclosed herein. Processes comprise demethylating a C6-C8 alkane within a shell and tube reactor to produce a demethylation product including at least 10 wt % neopentane based on the weight of the demethylation product.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: April 21, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Etienne Mazoyer, Kevin B. Daly, Helge Jaensch, James R. Lattner
  • Patent number: 10618004
    Abstract: Provided is an abatement device that reduces an amount of drainage of circulating water. The abatement device lowers an average drainage flow of circulating water to a low flow, when a ratio of a concentration of silicon dioxide within the circulating water and a concentration of hydrogen fluoride within the circulating water is greater than or equal to a predetermined value at which hydrofluorosilicic acid can be produced, and raises the average drainage flow of the circulating water to a high flow higher than the low flow, when the ratio of the concentration of silicon dioxide within the circulating water and the concentration of hydrogen fluoride within the circulating water is less than the predetermined value.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 14, 2020
    Assignee: Edwards Japan Limited
    Inventors: Toshiki Yamada, Alexander Michael Pope, Alistair Bennett, Steven Barlow, Christopher Peter Jones
  • Patent number: 10619105
    Abstract: Various techniques are disclosed for pretreating municipal solid waste (MSW) and other biomass-containing feedstocks that may be of a poorer quality and consequently more difficult, or even impossible, to convert to higher value liquid products (e.g., transportation fuels) using conventional processes. Such conventional processes may otherwise be satisfactory for the conversion of the biomass portion of the feedstock alone. The pretreatment of biomass-containing feedstocks may generally include steps carried out prior to a hydropyrolysis step and optionally further steps, in order to change one or more characteristics of the feedstock, rendering it more easily upgradable.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: April 14, 2020
    Assignee: Gas Technology Institute
    Inventors: Larry G. Felix, Martin B. Linck, Terry L. Marker, Michael J. Roberts
  • Patent number: 10611657
    Abstract: The present invention provides a method and system for preparing fuel gas by utilizing an organic waste with high water content. The method comprises the following steps: 1) providing an organic waste with high water content; 2) performing hydrothermal reaction by using the organic waste with high water content as a reactant to obtain a hydrothermal reaction product; 3) enabling the hydrothermal reaction product to generate steam, and separating a solid product and an oily liquid product in the hydrothermal reaction product; 4) performing gasification reaction by using the solid product, the oily liquid product and the steam as reactants to obtain a gasification reaction product; and 5) purifying the gasification reaction product to obtain clean fuel gas. The present invention further provides a system for preparing fuel gas. The method can be used for preparing clean fuel gas from the organic waste with water content of 60% or more.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 7, 2020
    Assignee: Tongji University
    Inventors: Xiaohu Dai, Dezhen Chen, Yuyan Hu, Lijie Yin, Xiaobo Ma
  • Patent number: 10611966
    Abstract: A system and method for the pyrolysis of a pyrolysis feedstock utilizes a pyrolysis reactor having a pyrolysis conduit and a solids return conduit segment. Each segment is configured with an outlet and an inlet to receive and discharge solid materials that are circulated through the reactor through the different segments. A solids conveyor is disposed within the pyrolysis conduit segment to facilitate conveying solid materials from the solids inlet upward through the pyrolysis conduit segment toward the solids discharge outlet. A pyrolysis feedstock is introduced into the pyrolysis reactor and at least a portion of the feedstock is converted to pyrolysis gases within the pyrolysis conduit segment, which are discharged through a gas outlet.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 7, 2020
    Assignee: Duke Technologies, LLC
    Inventors: Michael D. Ackerson, Michael Steven Byars
  • Patent number: 10590346
    Abstract: Efficiency of a thermochemical regeneration combustion system is enhanced by incorporation of gaseous products from pyrolysis of fuel such as biomass.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 17, 2020
    Assignee: Praxair Technology, Inc.
    Inventor: Hisashi Kobayashi
  • Patent number: 10590009
    Abstract: The present invention relates to a method for treating a waste water stream. Said waste water comprises hydrocarbons and oxygenates such as alcohols, aldehydes, ketones, carboxylic acids, and has a COD of up to 5 wt %. The invention relates to a distillation column for treating a waste water stream and a system for treating a waste water stream.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: March 17, 2020
    Inventors: Kai Jürgen Fischer, Matthias Behn
  • Patent number: 10590048
    Abstract: An integrated process for producing C3-C4 olefins or di-olefins including: contacting a hydrocarbon feed and a catalyst feed in a fluidized dehydrogenation reactor under conditions such that a product mixture is formed and the catalyst is at least partially deactivated; transferring the product mixture and the catalyst from the reactor to a cyclonic separation system under conditions such that the product mixture is converted to form a new product mixture and is separated from the catalyst; transferring at least a portion of the catalyst to a regenerator vessel and heating it in order to combust the coke deposited thereon; subjecting the catalyst to a conditioning step to form an oxygen-containing, at least partially reactivated catalyst; and transferring the partially reactivated catalyst back to the fluidized dehydrogenation reactor.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: March 17, 2020
    Assignee: Dow Global Technologies LLC
    Inventor: Matthew T. Pretz
  • Patent number: 10584292
    Abstract: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight-chain propyl group (R1—CH2—CH2—CH2—R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or R1 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: March 10, 2020
    Inventors: Eugine Choi, Matthew W. Boland, Zhisheng Gao, Luca Salvi, Shamel Merchant, Bruce W. Crawley
  • Patent number: 10577292
    Abstract: The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area ?55%. The refractory can include non-oxide ceramic.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: March 3, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Changmin Chun, Dhaval A. Bhandari, Federico Barrai
  • Patent number: 10577548
    Abstract: An enhanced diluent (EDIL) composition used to prepare a transportable dense crude oil composition is disclosed. An EDIL composition contains a usually used dense crude hydrocarbon diluent (DIL) plus an additive (ADD) composition that permits the amount of EDIL used in the resulting diluted transportable dense crude (EDIL:DC) to be lessened by about 20 to about 60 percent, while maintaining the viscosity and other properties of the usually used DC:DIL composition. A contemplated ADD composition is a mixture of three components, a solvent mixture, a diol and a surfactant. A contemplated EDIL composition contains about 1 to about 20 percent by weight of the ADD composition. Admixture of EDIL with a dense crude at about 80 to about 40 percent by volume of the amount of DIL usually used provides an easily transportable enhanced dense crude composition. A method of preparing a transportable dense crude composition is also disclosed.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 3, 2020
    Inventors: Rathin Datta, Ramon Burgues, Elena Osta, James E. Opre
  • Patent number: 10569217
    Abstract: The invention relates to a process for recovering methane from digester biogas or landfill gas. More specifically, the invention pertains to biomethane production that substantially removes carbon dioxide from a digester biogas or landfill gas using first, second, and third purification stages each comprising one or more membranes selective for carbon dioxide over methane. A retentate from the first stage is separated by the one more membranes of the second stage into a second state retentate, forming a biomethane product gas. A permeate from the first stage is separated by the one or more membranes of the third stage into a third stage retentate and a third stage permeate. Recovery of methane from the biogas is boosted by feeding the third stage retentate to the first purification stage. The recovery may be optionally further boosted by compressing the second stage permeate with the biogas at a main compressor.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: February 25, 2020
    Assignee: Air Liquide Advanced Technologies U.S. LLC
    Inventor: Michael J. Mitariten
  • Patent number: 10557322
    Abstract: A separation system for use with weighting materials in drilling fluids, the separation system has a body with an interior, a distribution chamber positioned in the interior of the body, a drilling fluid inlet pipe extending into the body in communicating with the distribution chamber, an overflow chamber positioned in the body, and at least one separation chamber positioned in the body and extending below the distribution chamber. The distribution chamber is configured to allow the drilling fluid to pass to the separation chamber. The separation chamber has a high-gravity solids outlet adjacent a lower end thereof and a fluid outlet adjacent an upper end thereof. The fluid outlet communicates with the overflow chamber. The separation channel has an inner diameter that tapers so as to narrow from the upper end thereof to the lower end thereof.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: February 11, 2020
    Assignee: FSI HOLDINGS, LLC
    Inventors: Octavio Perez, Ben Hiltl
  • Patent number: 10556846
    Abstract: The invention relates to the field of petrochemistry and petroleum refining, and more-specifically to methods and devices for producing a concentrate of aromatic hydrocarbons from liquid hydrocarbon fractions, which involve feeding initial components into a mixer, heating said components, feeding same to a reactor in which the heated components are converted into aromatic hydrocarbons in the presence of a catalyst, separating same into liquid and gas phases, feeding the gas phase into the mixer, and feeding the liquid phase into a rectification column, from which an aromatic hydrocarbon concentrate is collected, and can be used in petroleum refining and in petrochemistry for producing a concentrate aromatic hydrocarbons. According to the invention, methanol is additionally fed into the mixer. Hydrocarbon components which remain in the rectification column following collection are at least partially fed into the mixer.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: February 11, 2020
    Assignee: NGT Global AG
    Inventors: Vladimir Vladislavovich Imshenetskiy, Denis Vasilyevich Pchelintsev, Iosif Izrailevich Lishchiner, Olga Vasilyevna Malova, Andrey Leonidovich Tarasov