By Plural Serial Diverse Separations Patents (Class 585/802)
  • 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: 10599169
    Abstract: A system and method of optimizing Carbon Dioxide (CO2) delivery to crops during high-temperature periods. The method of facilitating plant growth includes the steps of (a) determining the wilting temperature of a set of plants; (b) measuring the ambient temperature of the plants; (c) supplying CO2 gas to the plants when the ambient temperature reaches a predetermined temperature point prior to the wilting temperature of the set of plants; and (d) continuing to supply CO2 gas to the plants until the ambient temperature of the set of plants falls below the predetermined temperature point, and then discontinuing supplying CO2 gas to the plants. Temperature of the plants is measured by a temperature sensor continuously monitoring the ambient temperature of the plants. A CO2 gas applicator disposed near the plants supplies CO2. The CO2 gas applicator is connected to a controller that is connected to a CO2 gas source.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: March 24, 2020
    Assignee: The Agricultural Gas Company
    Inventor: Stewart E. Erickson
  • Patent number: 10589215
    Abstract: The invention relates to a process for recovering methane from digester biogas or landfill gas. More specifically, the invention pertains to a method for producing biomethane that removes impurities from a compressed digester biogas with staged membrane modules of at least two different types, to produce a biomethane having at least 94% CH4, below 3% of CO2, and below 4 ppm of H2S.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 17, 2020
    Assignee: Air Liquide Advanced Technologies U.S. LLC
    Inventors: Yong Ding, Michael J. Mitariten
  • Patent number: 10493381
    Abstract: A separation zone and a method of separating a mixed stream are described. The separation zone includes a tank and a stack having a gas outlet. A first baffle is positioned between the sides and defines a disulfide liquid compartment. The stack is positioned above the disulfide liquid compartment. A second baffle is positioned between the first baffle and the second side and defines an alkali compartment. The second baffle has a height less than the height of the first baffle. A third baffle is positioned between the first and second baffles. The bottom of the third baffle is at a height less than the height of the second baffle, and the top of the third baffle is at a height greater than the height of the first baffle.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: December 3, 2019
    Assignee: UOP LLC
    Inventor: Luigi Laricchia
  • Patent number: 10472582
    Abstract: The invention is directed to a process and apparatus for removing hydrogen sulfide from a gas stream comprising biogas. In accordance with the invention the gas stream is contacted with an oxidizing agent present in a vessel, whereby said hydrogen sulfide is oxidized into elemental sulfur and said oxidizing agent is reduced, wherein oxygen containing gas is also fed to said vessel, wherein said oxygen oxidizes at least part of said reduced oxidizing agent.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: November 12, 2019
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Leon Christian Stille, Marco Johannes Gerardus Linders, Earl Lawrence Vincent Goetheer
  • Patent number: 10287514
    Abstract: A method for recovering synthetic oils from a feed stream, the method comprising separating at least a portion of the non-synthetic oil constituents from a commingled stream to produce a partially purified synthetic oil stream and one or more contaminant streams. Extracting at least a portion of the synthetic oil from the partially purified synthetic oil stream to produce a synthetic oil stream and a second contaminant stream.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: May 14, 2019
    Assignee: Gen III Oil Corporation
    Inventor: Martin R. MacDonald
  • Patent number: 9927171
    Abstract: A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the expanded first stream is heated to form a vapor fraction and a liquid fraction. The vapor fraction is combined with the tower overhead vapor, directed to a heat and mass transfer means inside a processing assembly, and cooled and partially condensed by the expanded first stream to form a residual vapor stream and a condensed stream. The condensed stream is combined with the liquid fraction and supplied to the tower at its top feed point.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 27, 2018
    Assignees: Ortloff Engineers, Ltd., S.M.E. Products LP
    Inventors: Hank M. Hudson, John D. Wilkinson, Joe T. Lynch, Scott A. Miller, Kyle T. Cuellar, Andrew F. Johnke, W. Larry Lewis
  • Patent number: 9919982
    Abstract: A method for gas processing, in particular for processing biogas of a biogas plant in which in one method step a membrane process or a reactive process is executed, and in at least one further method step an adsorption and/or absorption process is executed.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 20, 2018
    Assignee: Airbus DS GmbH
    Inventors: Carsten Matthias, Walter Jehle
  • Patent number: 9895653
    Abstract: In a process for the separation of a stream containing carbon dioxide, water and at least one light impurity including a separation step at subambient temperature, the feed stream is compressed in a compressor comprising at least two stages to form a compressed feed stream, the compressed feed stream is purified in an adsorption unit to remove water and form a dried compressed stream, the dried compressed stream or a stream derived therefrom is cooled to a subambient temperature and separated by partial condensation and/or distillation in a separation apparatus, liquid enriched in carbon dioxide is removed from the separation apparatus, the adsorption unit is regenerated using a regeneration gas and the regeneration gas is formed by separating, by permeation in a permeation unit, the dried compressed stream or a gas derived therefrom, the permeate of the permeation unit constituting the regeneration gas.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: February 20, 2018
    Assignee: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Arthur Darde, Richard Dubettier-Grenier, David J. Hasse, Sudhir S. Kulkarni, Mathieu LeClerc, Paul Terrien
  • Patent number: 9458068
    Abstract: One exemplary embodiment can be a process for removing one or more sulfur compounds from a first liquid. The process can include passing the first liquid through a first inlet and a second liquid through a second inlet of a vessel, passing the first and second liquids through the passageway for facilitating contacting of the first and second liquids to extract the one or more sulfur compounds from the first liquid to the second liquid, and passing the first liquid through the first outlet and the second liquid through the second outlet. Often, the vessel has a plurality of vortex contactors, and a first outlet and a second outlet. The plurality of vortex contactors can include a first vortex contactor, in turn having at least one wall forming a perimeter about an interior region and including a first side and a second side forming a passageway communicating the first liquid from an exterior to the interior region, and a frustum positioned proximate to the passageway and abutting the at least one wall.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 4, 2016
    Assignees: UOP LLC, BORESKOV INSTITUTE OF CATALYSIS
    Inventors: Andrey Kuzmin, Aziz Sattar, Lev Davydov, Jonathan Andrew Tertel
  • Publication number: 20150141728
    Abstract: Methods and apparatuses are provided for producing low sulfur propane and butane. The method includes reacting a mercaptan in a washed feed stream with a caustic stream to produce a mercaptan salt in a rich caustic stream and a hydrocarbon treated stream. The mercaptan salt in the rich caustic stream is reacted with oxygen and water to produce a mixed caustic/disulfide stream, and the caustic and disulfides in the mixed caustic/disulfide stream are separated to produce a disulfide stream and the caustic stream. The hydrocarbon treated stream is fractionated to produce a propane stream, a butane stream, and a C5+ stream.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: UOP LLC
    Inventors: Luigi Laricchia, Jonathan Andrew Tertel
  • Publication number: 20150133711
    Abstract: Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 14, 2015
    Inventors: Lei JI, Ai-Fu CHANG, Michael Sean Driver, Hye-Kyung Cho Timken
  • Publication number: 20150119623
    Abstract: The present disclosure relates to a biogas purification system and method for removal of sulfur and halogenated compounds and acidic reaction products from biogas. A contaminant removal module is supplied containing a catalytic oxidation catalyst comprising vanadium oxide (V2O5) on a metal oxide support where the catalyst oxidizes 85% or more of the sulfur and halogenated compounds. This may be followed by a contaminant removal module containing alkali impregnated carbon which removes 85% or more of the acidic reaction products. If siloxane impurities are present in the biogas, one may utilize a contaminant removal module containing alumina oxide.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Inventor: Francis Y. Huang
  • Publication number: 20150112111
    Abstract: The present invention provides a novel system and method for sulphur and metal removal from crude oil and all liquid fuel fractions to biofuels by means of ultrasonic cavitation to enhance chemical reactions of said contaminants with sodium or potassium methylate and a water/fluoride mix in separate stages obtaining a solid form which is filtered out by the use of a centrifuge system. The resulting fuel is molecularly stable and cleaner than regular fuels.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 23, 2015
    Inventors: Carlos Jose Gonzalez, Miguel Jimenez, Luis Fernando Gutierrez
  • Patent number: 9011676
    Abstract: Elimination of mercury contained in a hydrocarbon feed by: a) feed 1 is mixed with a hydrogen stream 14 and a gaseous fraction 13 originating from c), b) mixture 1a contacted with a catalyst to convert mercury compounds to elemental mercury producing an effluent containing elemental mercury 6, c) effluent containing elemental mercury is cooled to between 20° C. and 80° C., then, at 1.5 MPa and 3.5 MPa and between 20° C. and 80° C., separation 10 of said effluent containing the elemental mercury into a gaseous fraction 11 and a liquid fraction 15, at least a part of said gaseous fraction 11 being recycled to step a), d) fractionation 20 of liquid fraction 15 to produce a gaseous phase 42 and a liquid phase 21, and e) contacting at least a part of gaseous phase 42 with a mercury collection material 43.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: April 21, 2015
    Assignee: AXENS
    Inventors: Jean Christophe Candelon, Annick Pucci, Clotilde Jubin
  • Patent number: 8981174
    Abstract: Methods and systems for processing crude oil comprise adding water to the crude oil to produce an emulsion comprising brine and oil and solids; separating oil from brine including producing brine comprising a rag layer; separating the rag layer into a hydrocarbon emulsion having finer solids and brine comprising larger solids; and passing the hydrocarbon emulsion along a cross-flow filter to produce a retentate comprising brine and solids and a permeate comprising hydrocarbon.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Pall Corporation
    Inventor: Thomas Harris Wines
  • Publication number: 20150073194
    Abstract: A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the expanded first stream is heated to form a vapor fraction and a liquid fraction. The vapor fraction is combined with the tower overhead vapor, directed to a heat and mass transfer means inside a processing assembly, and cooled and partially condensed by the expanded first stream to form a residual vapor stream and a condensed stream. The condensed stream is combined with the liquid fraction and supplied to the tower at its top feed point.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 12, 2015
    Inventors: Hank M. Hudson, John D. Wilkinson, Joe T. Lynch, Scott A. Miller, Kyle T. Cuellar, Andrew F. Johnke, W. Larry Lewis
  • Publication number: 20150073196
    Abstract: A process and an apparatus are disclosed for a compact processing assembly to remove C5 and heavier hydrocarbon components from a hydrocarbon gas stream. The hydrocarbon gas stream is expanded to lower pressure and supplied to the processing assembly between an absorbing means and a mass transfer means. A distillation vapor stream is collected from the upper region of the absorbing means and cooled in a first heat and mass transfer means inside the processing assembly to partially condense it, forming a residual vapor stream and a condensed stream. The condensed, stream is supplied to the absorbing means at its top feed point. A distillation liquid stream is collected from the lower region of the mass transfer means and directed into a second beat and mass transfer means inside the processing assembly to heat it and strip out its volatile components.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 12, 2015
    Inventors: Scott A. Miller, John D. Wilkinson, Joe T. Lynch, Hank M. Hudson, Kyle T. Cuellar, Andrew F. Johnke, W. Larry Lewis
  • Publication number: 20150073195
    Abstract: A process and an apparatus are disclosed for a compact processing assembly to fractionate lighter components from mixed hydrocarbon streams. The hydrocarbon stream is supplied to the processing assembly between an absorbing means and a mass transfer means. A distillation vapor stream is collected from the upper region of the absorbing means and cooled in a first heat and mass transfer means inside the processing assembly to partially condense it, forming a volatile stream and a condensed stream. The condensed stream is supplied to the absorbing means as its top feed. A distillation liquid stream is collected from the lower region of the mass transfer means and heated in a second heat and mass transfer means inside the processing assembly to strip out its volatile components, forming a relatively less volatile stream and a vaporized stream. The vaporized stream is supplied to the mass transfer means as its bottom feed.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 12, 2015
    Inventors: Joe T. Lynch, John D. Wilkinson, Scott A. Miller, Hank M. Hudson, Kyle T. Cuellar, Andrew F. Johnke, W. Larry Lewis
  • Publication number: 20150038759
    Abstract: The invention involves a process for treating a natural gas stream comprising sending the natural gas stream first to an adsorbent unit for removal of mercury. Then the gas stream is sent to an absorbent unit containing a chemical solvent and a physical solvent for removal of carbon dioxide, hydrogen sulfide, carbonyl sulfide and organic sulfur compounds to produce a partially purified natural gas stream. This stream is dehydrated and becomes the product stream. The partially purified natural gas stream to a dehydration unit to remove water to produce a natural gas product stream. The impurities absorbed by the absorption unit are removed and a liquid stream is separated that contains the sulfur impurities. This liquid stream may be purified and stabilized before being shipped for further treatment.
    Type: Application
    Filed: July 9, 2014
    Publication date: February 5, 2015
    Inventors: Shain-Jer Doong, Lubo Zhou
  • Patent number: 8940956
    Abstract: Methods and systems for processing crude oil comprise adding water to the crude oil to produce an emulsion comprising brine and oil and solids; separating oil from brine including producing brine comprising a rag layer; separating the rag layer into a hydrocarbon emulsion having finer solids and brine comprising larger solids; and passing the hydrocarbon emulsion along a cross-flow filter to produce a retentate comprising brine and solids and a permeate comprising hydrocarbon.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: January 27, 2015
    Assignee: Pall Corporation
    Inventor: Thomas Harris Wines
  • Publication number: 20150005561
    Abstract: An adsorption process using a fractionation column including a drying section is described. The drying section dries the desorbent and removes water from the adsorption process resulting in increased capacity for the adsorbent bed.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: Jeffrey L. Pieper, Stephen W. Sohn, Peter M. Bernard, Cynthia K. Zimmerman
  • Publication number: 20150005562
    Abstract: An exemplary embodiment can be a process for removing one or more sulfur compounds in a gas hydrocarbon stream. The process may include feeding the gas hydrocarbon stream to a prewash zone containing an alkali stream and passing the gas hydrocarbon stream from the prewash zone to an extraction zone. Usually, the gas hydrocarbon stream includes one or more sulfur compounds and the prewash zone includes a hollow fiber membrane.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Jonathan Andrew Tertel, Aziz Sattar, Bhargav Sharma
  • Publication number: 20140371507
    Abstract: One exemplary embodiment can be a process for separating at least one amine from one or more hydrocarbons for regenerating the at least one amine. The process can include passing the at least one amine after contacting with the one or more hydrocarbons from a first vessel to a second vessel. Often, the second vessel includes one or more walls surrounding one or more baffles and contains at least one coalescing zone.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Luigi Laricchia, Javier Rios
  • Publication number: 20140371508
    Abstract: One exemplary embodiment can be a process for removing carbonyl sulfide in a gas phase hydrocarbon stream. The process may include combining the gas phase hydrocarbon stream with another stream including an alkali and an alkanolamine, and passing the combined stream to a prewash zone including a vessel. The gas phase hydrocarbon may include carbonyl sulfide, and the alkali can include at least one of potassium hydroxide, sodium hydroxide, and ammonia. Usually, the vessel contains a contacting zone and a coalescing zone for removing the carbonyl sulfide.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Luigi Laricchia, Jessy E. Trucko
  • Publication number: 20140371505
    Abstract: One exemplary embodiment can be a process for treating a hydrocarbon stream. The stream can include passing the hydrocarbon stream into a vessel containing a packed zone and a coalescing zone, passing an amine stream into the vessel at a location above an inlet for the hydrocarbon stream, and withdrawing the hydrocarbon stream.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventor: Luigi Laricchia
  • Publication number: 20140371506
    Abstract: One exemplary embodiment can be a process for removing one or more sulfur compounds from one or more hydrocarbons. The process may include passing a hydrocarbon stream from a prewash zone containing a coalescing zone to an extraction zone. Often, the zones are contained within a single vessel and the coalescing zone comprises an oleophilic media.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventor: Luigi Laricchia
  • Publication number: 20140357925
    Abstract: A natural gas feedstream containing contaminants such as carbon dioxide is purified by passing the contaminated natural gas stream through a membrane to remove the bulk of the contaminant, passing the purified natural gas stream to a TSA unit to remove additional contaminant from the natural gas stream to a desired specification, and regenerating the TSA adsorbent by heating the adsorbent with a heated contaminant-containing permeate stream from the membrane.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Michael J. Mitariten, Roy Brown
  • Publication number: 20140357926
    Abstract: A process for treatment of a natural gas stream, or other methane containing stream that passes through a guard bed for removal of mercury and hydrolysis of COS, followed by treatment with an absorbent unit containing an amine solvent for removal of carbon dioxide and hydrogen sulfide. The gas is then dried by a molecular sieve bed. The regeneration gas for the molecular sieve adsorbent bed is chilled to remove liquid hydrocarbons and sulfur compounds. The process is accomplished without the use of an absorbent unit to remove the sulfur compounds.
    Type: Application
    Filed: May 21, 2014
    Publication date: December 4, 2014
  • Patent number: 8894820
    Abstract: One exemplary embodiment can be a fractionation zone for an alkylation apparatus. The fractionation zone can be a column adapted to receive a feed including at least one alcohol, water, and at least one ketone. The column may provide an overhead stream including the at least one ketone and a side-stream including the at least one alcohol and water.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: November 25, 2014
    Assignee: UOP LLC
    Inventors: Charles P. Luebke, David N. Myers
  • Patent number: 8895794
    Abstract: We provide a process for producing high quality gasoline blending components, comprising: a) operating an alkylation reactor in an alkylate mode wherein a gasoline blending component is made having a RON of 90 or higher; and b) operating the alkylation reactor in a distillate mode wherein a second gasoline blending component and a distillate product is made, and wherein the second gasoline blending component has a RON of 85 or higher. Also, we provide an alkylation process unit, comprising: a control system connected to an alkylation reactor, that enables the alkylation reactor to operate in both an alkylate mode that produces a gasoline blending component having a RON of 90 or higher and in a distillate mode that produces a second gasoline blending component having a RON of 85 or higher.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 25, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Timken, Shawn Winter, Howard S. Lacheen, Sven Ivar Hommeltoft
  • Publication number: 20140343341
    Abstract: [PROBLEM] To provide an industrially advantageous method and system that are simple and have superior energy efficiency for obtaining high-purity propane from low-purity propane. [SOLUTION] Water, carbon dioxide, at least one of ethane and propylene, and at least one of isobutane and normal butane present in low-purity propane in a gaseous phase are adsorbed by means of a zeolite molecular sieve that preferentially adsorbs water and carbon dioxide over propane, an activated carbon molecular sieve that preferentially adsorbs ethane and propylene over propane, and activated carbon that preferentially adsorbs isobutane and normal butane over propane. Propane is condensed in a state in which nitrogen and oxygen are maintained in a gaseous state by introducing the low-purity propane in a gaseous phase into a partial condenser. Nitrogen and oxygen in the gaseous phase are extracted from the partial condenser.
    Type: Application
    Filed: October 3, 2012
    Publication date: November 20, 2014
    Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Junichi Kawakami, Shinichi Tai, Saori Tanaka
  • Publication number: 20140336433
    Abstract: One exemplary embodiment can be a process for initiating operations of a separation apparatus. The process may include passing a hydrocarbon carrier having a sulfiding agent through an exchanger for heating the hydrocarbon carrier prior to entering a stripper.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 13, 2014
    Applicant: UOP, LLC
    Inventors: Richard Hoehn, Shannon Maureen Sullivan, Krishnan Vaidyanathan
  • Publication number: 20140323789
    Abstract: Methods and systems for processing crude oil comprise adding water to the crude oil to produce an emulsion comprising brine and oil and solids; separating oil from brine including producing brine comprising a rag layer; separating the rag layer into a hydrocarbon emulsion having finer solids and brine comprising larger solids; and passing the hydrocarbon emulsion along a cross-flow filter to produce a retentate comprising brine and solids and a permeate comprising hydrocarbon.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 30, 2014
    Applicant: Pall Corporation
    Inventor: Thomas Harris Wines
  • Publication number: 20140323788
    Abstract: One exemplary embodiment can be a process for modifying an apparatus. The apparatus can include adding an adsorption zone upstream of a hydrocracking zone and a downstream of a vacuum distillation zone to adsorb polynuclear aromatic compounds originating from a feed provided to the vacuum distillation zone.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 30, 2014
    Applicant: UOP, LLC
    Inventor: Dorothy M. Richmond
  • Publication number: 20140323790
    Abstract: A method for removing high-boiling hydrocarbons from water-soluble solvent flows, wherein said solvent flows are produced in industrial processes which circulate a solvent as a part of the process, and the solvent must be periodically or permanently freed of high-boiling hydrocarbons which influence the quality or the desired properties of the solvent in an unwanted way, and water is added for carrying out the method in a phase separator, so that the high-boiling hydrocarbons are separated off because of their immiscibility with water, and then the water-miscible phase containing water and solvent is returned to the process. According to the invention, the proportion of high-boiling hydrocarbons in circulating solvents in an industrial process can be kept permanently low.
    Type: Application
    Filed: November 11, 2011
    Publication date: October 30, 2014
    Applicant: THYSSENKRUPP UHDE GmbH
    Inventors: Johannes Menzel, Holger Thielert
  • Patent number: 8864952
    Abstract: Embodiments of apparatuses and methods for separating a paraffin isomerization-zone effluent are provided. In one example, an apparatus comprises a DIB column configured for fractionating the paraffin isomerization-zone effluent to form a branched C4 hydrocarbon-rich stream. The DIB column comprises a vessel. The vessel comprises a cylindrical wall that extends vertically and that encloses an internal cylindrical volume having a lower portion extending to an upper portion. An internal swage is disposed in the lower portion of the internal cylindrical volume. A plurality of fractionation trays includes an upper fractionation tray that is disposed in the internal cylindrical volume above the internal swage and a lower fractionation tray that is disposed in the internal swage. The lower fractionation tray has a smaller diameter than the upper fractionation tray.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 21, 2014
    Assignee: UOP LLC
    Inventors: Anurag Sinha, Manoj Kumar, David James Shecterle, Douglas A. Becci
  • Patent number: 8864975
    Abstract: Integrated hydroprocessing methods using high activity, low density catalysts are provided. The high activity catalysts allow for lower temperature operation, which reduces catalyst degradation, while the low density of the catalysts means a corresponding reduction in the amount of metal needed to fill a reactor volume. The methods allow for flexible processing of feedstocks with a variety of wax contents.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: October 21, 2014
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Darden Sinclair, Michel Daage, Charles J. Mart, Louis Burns, Timothy L. Hilbert
  • Patent number: 8864976
    Abstract: Integrated hydroprocessing methods using high activity, low density catalysts are provided. The high activity catalysts allow for blocked operation when processing lube range feedstocks of widely varying characteristics, such as wax content, without having to substantially change the configuration or operating conditions of the process train. Instead, the different feedstocks can be accommodated by varying the reaction temperature in the process train.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: October 21, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Darden Sinclair, Michel Daage, Charles J. Mart, Louis Burns, Timothy L. Hilbert
  • Publication number: 20140309471
    Abstract: An exemplary embodiment can be a process for sweetening natural gas to liquefied natural gas specifications. The process can include providing a membrane contactor having a lumen side and a shell side. A feed natural gas is introduced to the lumen side of the membrane contactor. An absorption solvent is introduced to the shell side of the membrane contactor. CO2 and H2S are removed with the absorption solvent from the feed natural gas resulting in a sweetened natural gas containing less than 50 ppmv CO2 and less than 4 ppmv H2S. Corresponding or associated systems for such sweetening of natural gas are also provided.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 16, 2014
    Inventors: Shaojun ZHOU, Howard S. Meyer
  • Publication number: 20140303421
    Abstract: Systems and methods for conditioning synthetic crude oils are provided herein. The systems and methods described herein subject the synthetic crude to one or more process solutions to provide conditioned synthetic crude exhibiting, for example, a reduced TAN.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Applicant: Agilyx Corporation
    Inventors: James Michael Bennett, Kevin Clark DeWhitt
  • Patent number: 8853485
    Abstract: The present invention provides a method for preparing the polymer grade low-carbon olefin through separation of the methanol pyrolysis gas, including steps of the compression, impurity removal, and absorption and separation. In the absorption and separation step, the pyrolysis gas is sent to the front-end ethylene removing column, and then is, with the C4 absorbent, further absorbed and separated to produce polymer grade ethylene products, polymer grade propylene products, and C4 and C5 products. The moderate-temperature and moderate-pressure separation without a cold box according to the present invention provides safer production process, less investment in the equipment, as well as easier separation and lower energy consumption as a result of the front-end ethylene removing and C4 absorption and separation process.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: October 7, 2014
    Assignees: China MTO Limited, Daqing Petrochemical Engineering Co., Ltd.
    Inventors: Huiling Zhang, Longwu Cheng, Zhiyuan Song, Xiaojian Min
  • Patent number: 8846994
    Abstract: The invention relates to a method for producing low-odor n-butane by catalytic hydrogenation of a feed mixture. The aim of the invention is to provide such a method, wherein the feed material, in addition to n-butane, n-butene and up to 1 mass % formic acid and/or up to 1 mass % pentanals and/or up to 0.5 mass % pentanols, also comprises carbon monoxide. The aim is achieved by treating the feed mixture in the temperature range of 15 to 120° C. with an aqueous solution of an alkali metal or alkaline earth metal hydroxide in the concentration range of 0.5 to 30 mass % and subsequently subjecting the feed mixture to the catalytic hydrogenation.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: September 30, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Gerd Lueken, Alfred Kaizik, Markus Winterberg, Wilfried Bueschken, Dirk Fridag
  • Publication number: 20140271419
    Abstract: Systems and methods for removal of gas phase contaminants may utilize catalytic oxidation. For example, a method may include passing a gas that includes a gas phase contaminant through a catalytic membrane reactor at a temperature of about 150° C. to about 300° C., wherein the catalytic membrane reactor includes a bundle of tubular inorganic membranes, wherein each of the tubular inorganic membranes comprise a macroporous tubular substrate with an oxidative catalyst and a microporous layer disposed on a bore side of the macroporous tubular substrate, and wherein at least about 50% of the gas flows through the tubular inorganic membranes in a Knudsen flow regime; and oxidizing at least some of the gas phase contaminant with the oxidative catalyst layer, thereby reducing a concentration of the gas phase contaminant in the gas.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicants: UNIVERSITY OF SOUTHERN CALIFORNIA, GC ENVIRONMENTAL, MEDIA AND PROCESS TECHNOLOGY INC.
    Inventors: Theodore T. Tsotsis, Fokion Egolfopoulos, Nitin Nair, Richard Prosser, Jyh-Yih Ren, Paul Liu, Alireza Divsalar, Yousef Motamedhashemi, Majid Monji
  • Publication number: 20140275691
    Abstract: A system and method for efficiently removing hydrogen sulfide from a natural gas feed stream to produce a Stinson Process feed stream and an acid gas stream. A first solvent separates the majority of the carbon dioxide and hydrocarbons from the hydrogen sulfide in the natural gas feed to produce the Stinson feed stream. By removing the majority of the hydrogen sulfide prior to feeding the Stinson Process, a carbon dioxide stream suitable for use in flooding operations may be produced with the Stinson Process. The system and method also increase the concentration of hydrogen sulfide in the acid gas stream, making it suitable for sulfur recovery operations. The system and method are particularly suitable for natural gas feed streams containing 0.5%-20% hydrogen sulfide and at least 20% carbon dioxide. Operation in an anhydrous mode with the addition of nitrogen aids in solvent recovery for recycling.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Butts Properties, LTD.
    Inventor: Rayburn C. Butts
  • Publication number: 20140257009
    Abstract: A method for recovering synthetic oils from a feed stream, the method comprising separating at least a portion of the non-synthetic oil constituents from a commingled stream to produce a partially purified synthetic oil stream and one or more contaminant streams. Extracting at least a portion of the synthetic nil from the partially purified synthetic oil stream to produce a synthetic oil stream and a second contaminant stream.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: VeroLube, Inc.
    Inventor: Martin R. MacDonald
  • Publication number: 20140257008
    Abstract: A method for recovering synthetic oils from a feed stream, the method comprising separating at least a portion of the non-synthetic oil constituents from a commingled stream to produce a partially purified synthetic oil stream and one or more contaminant streams. Extracting at least a portion of the synthetic oil from the partially purified synthetic oil stream to produce a synthetic oil stream and a second contaminant stream.
    Type: Application
    Filed: January 30, 2014
    Publication date: September 11, 2014
    Applicant: VeroLube, Inc.
    Inventor: Martin R. MacDonald
  • Publication number: 20140243572
    Abstract: A gaseous component is extracted non-cryogenically from a feed gas containing condensable hydrocarbons. The feed gas is passed first through a module containing polymeric fibers useful for removing water vapor from the gas. The gas is then passed through a module containing polymeric fibers selected such that they remove some, but not all, of the carbon dioxide in the stream. The gas is then passed through a module containing polymeric fibers selected to remove at least some of the remaining carbon dioxide as well as heavy hydrocarbons, defined as C5 and heavier, from the stream. The invention is especially useful in processing raw methane taken from a well, and in producing methane which is relatively free of water vapor, carbon dioxide, and heavy hydrocarbons.
    Type: Application
    Filed: January 15, 2014
    Publication date: August 28, 2014
    Applicant: Generon IGS, Inc.
    Inventors: Marc Straub, John A. Jensvold
  • Publication number: 20140243566
    Abstract: Methods and apparatuses for reducing an aromatic concentration in a hydrocarbon stream are provided. In an embodiment, a method for reducing an aromatic concentration in a hydrocarbon stream includes saturating aromatics in the hydrocarbon stream to form a low aromatic hydrocarbon stream comprising no more than about 2 weight percent (wt %) aromatics. Further, the method includes passing the low aromatic hydrocarbon stream through an adsorption zone to remove aromatics therefrom to form an aromatic-depleted product stream comprising less than about 10 weight parts per million (wppm) aromatics.
    Type: Application
    Filed: May 5, 2014
    Publication date: August 28, 2014
  • Patent number: 8816148
    Abstract: A process comprising receiving a hydrocarbon feed stream comprising carbon dioxide, separating the hydrocarbon feed stream into a light hydrocarbon stream and a heavy hydrocarbon stream, separating the light hydrocarbon stream into a carbon dioxide-rich stream and a carbon dioxide-lean stream, and feeding the carbon dioxide-lean stream into a hydrocarbon sweetening process, thereby increasing the processing capacity of the hydrocarbon sweetening process compared to the processing capacity of the hydrocarbon sweetening process when fed the hydrocarbon feed stream.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: August 26, 2014
    Assignee: Pilot Energy Solutions, LLC
    Inventor: Eric Prim