Organic Agent Patents (Class 585/864)
  • Patent number: 9028677
    Abstract: In various aspects, the invention provides for processing a hydrocarbon feed having hydrocarbon and emulsified aqueous components demulsifying into hydrocarbon and aqueous phases over an initial demulsification time, with an active agent to form a treated feed. The active agent has an active agent solubility in the hydrocarbon component and in the aqueous component, the aqueous component has an aqueous component solubility in the hydrocarbon component. The active agent solubility in the hydrocarbon component is greater than the aqueous component solubility in the hydrocarbon component. The active agent solubility in the aqueous component is greater than the active agent solubility in the hydrocarbon component. The active agent solubility in the aqueous component is greater than the active agent solubility in the hydrocarbon component.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 12, 2015
    Assignee: Suncor Energy Inc.
    Inventors: Richard McFarlane, Michael Peter Singleton
  • Patent number: 9012713
    Abstract: The present invention provides a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a solvent comprising ethanol, treating the olefin stream comprising oxygenate with the solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent solvent comprising at least part of the oxygenate.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: April 21, 2015
    Assignee: Shell Oil Company
    Inventor: Jeroen Van Westrenen
  • Patent number: 8987540
    Abstract: The present invention relates to a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a solvent comprising propanol, treating the olefin stream comprising oxygenate with the solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent solvent comprising at least part of the oxygenate.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 24, 2015
    Assignee: Shell Oil Company
    Inventor: Jeroen Van Westrenen
  • Patent number: 8952211
    Abstract: A process for recovering ethylene is disclosed, the process including: recovering a ethylene-containing stream comprising methane, ethylene, and nitrogen oxides from at least one of an ethylene production process and an ethylene recovery process; separating the ethylene-containing stream via extractive distillation using at least one C2+ hydrocarbon absorbent to produce an overheads fraction comprising methane and nitrogen oxides and a bottoms fraction comprising the at least one C2+ hydrocarbon absorbent and ethylene; wherein the separating comprises operating the extractive distillation at temperatures and pressures sufficient to prevent any substantial conversion of nitrogen oxides to N2O3.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 10, 2015
    Assignee: Lummus Technology Inc.
    Inventors: Stephen J. Stanley, Stephen De Haan, Peter Daniel Kuzma, Jr.
  • Patent number: 8927800
    Abstract: We provide a method for making hydrocarbon products with reduced organic halide contamination, comprising: a. separating an effluent from an ionic liquid catalyzed hydrocarbon conversion reaction into: i. a hydrocarbon fraction comprising an organic halide contaminant and from greater than zero to less than 5000 wppm olefins; and ii. a used ionic liquid catalyst fraction comprising a used ionic liquid catalyst; and b. contacting the hydrocarbon fraction with an aromatic hydrocarbon reagent and an ionic liquid catalyst to reduce a level of the organic halide contaminant to from greater than zero to 20 wppm in a finished hydrocarbon product.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 6, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cedrick Mahieux, Sven Ivar Hommeltoft
  • Publication number: 20140378732
    Abstract: This disclosure relates to a process for polymerization comprising providing a recycle stream, wherein the recycle stream comprises one or more C6 to C12 conjugated or non-conjugated diene monomers and one or more C1 to C40 oxygenates. The recycle stream is contacted with an adsorbent bed to produce a treated recycle stream; wherein the adsorbent bed comprises at least two adsorbents to remove quenching agent and C1 to C40 oxygenates.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Suzzy C. Ho, Jo Ann M. Canich, Machteld M. Mertens, Periagaram S. Ravishankar, Patrick S. Byrne, Lisa B. V. Stefaniak
  • 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: 8771476
    Abstract: High temperatures and oxygen exposure during extractive distillation can result in polymerization of vinyl aromatic compounds. In various embodiments, the present disclosure relates to methods for inhibiting polymerization of vinyl aromatic compounds during extractive distillation. In various embodiments, the methods include a) providing a mixture containing at least one vinyl aromatic compound, b) adding at least one dinitrophenol inhibitor to the mixture, and c) after step b), performing an extractive distillation on the mixture to isolate the at least one vinyl aromatic compound. Purified styrene can be isolated by the methods described herein. In some embodiments, the dinitrophenol inhibitor is 2-sec-butyl-4,6-dinitrophenol (DNBP).
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: July 8, 2014
    Assignee: GTC Technology LP
    Inventors: Amy Sealey, George A. Ball, B. Bryant Slimp, Jr.
  • Publication number: 20140187804
    Abstract: The present invention relates to a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a solvent comprising propanol, treating the olefin stream comprising oxygenate with the solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent solvent comprising at least part of the oxygenate.
    Type: Application
    Filed: December 20, 2013
    Publication date: July 3, 2014
    Applicant: Shell Oil Company
    Inventor: Jeroen VAN WESTRENEN
  • Publication number: 20140187836
    Abstract: The present invention relates to a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a liquid solvent comprising: (a) butanol; (b)alkyl tert-alkyl ether; or (c) alkyl tert-alkyl ether and butanol, treating the olefin stream comprising oxygenate with the liquid solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent liquid solvent comprising at least part of the oxygenate.
    Type: Application
    Filed: December 20, 2013
    Publication date: July 3, 2014
    Applicant: Shell Oil Company
    Inventors: Sivakumar SADASIVAN VIJAYAKUMARI, Jeroen VAN WESTRENEN
  • Publication number: 20140171665
    Abstract: The present invention provides a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a solvent comprising ethanol, treating the olefin stream comprising oxygenate with the solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent solvent comprising at least part of the oxygenate.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 19, 2014
    Applicant: Shell Oil Company
    Inventor: Jeroen VAN WESTRENEN
  • Publication number: 20140171720
    Abstract: We provide a process comprising: a. feeding a chlorinated-hydrocarbon and an ionic liquid catalyst to a treatment unit; b. operating the treatment unit at an elevated temperature to produce dechlorinated-hydrocarbon and HCl; and c. collecting the dechlorinated-hydrocarbon, wherein at least 90 wt % of the chlorides are removed. A second process comprises: a. creating an ionic liquid catalyst-rich zone in a distillation unit; b. passing chlorinated-hydrocarbon to the distillation unit; c. operating the unit under conditions causing removal of alkyl chloride to produce dechlorinated-hydrocarbon having a final boiling point close to a first final boiling point. A third process comprises: a. feeding alkylate gasoline blending component and ionic liquid catalyst to a treatment unit; b. operating the treatment unit; and c. collecting a dechlorinated-hydrocarbon, wherein at least 90 wt % of the chlorides have been removed and the dechlorinated-hydrocarbon has a second RON that is close to a first RON.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Hye Kyung Cho Timken, Michael Sean Driver
  • Patent number: 8673134
    Abstract: A method for the removal of nitrogen compounds from FCC feed or from catalytically cracked distillates including FCC cycle oils by using formaldehyde to selectively couple organic heterocyclic nitrogen species in the FCC feed or FCC distillate to form higher boiling coupling products out of the boiling range of FCC distillate. Removal of the nitrogenous compounds improves the operation of subsequent hydrodesulfurization steps needed for the distillate fraction to conform to low sulfur standards. The formaldehyde is preferably used in the form of paraformaldehyde. The reaction between the nitrogenous compounds in the cycle oil fraction with the formaldehyde is conveniently carried out in the cycle oil pumparound circuit of the FCC main column.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: March 18, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stacey E. Siporin, David Thomas Ferrughelli, Steven S. Lowenthal, Randolph J. Smiley, Alan Roy Katritzky, Bruce R. Cook
  • Publication number: 20140038867
    Abstract: A method of improving air release in lubricant base stocks and lubricating oils is provided. The method includes providing a Group I base stock, a Group II base stock or a combination thereof and adding to the base stock an effective amount of C7 to C80 paraffin, wherein the lubricant base stock provides air release according to the ASTM D3427 test at least 20% lower than the same lubricant base stock not including the C7 to C80 paraffin. Also provided are lube base stocks and lubricating oils with improved air release and methods of making such base stocks and oils.
    Type: Application
    Filed: July 22, 2013
    Publication date: February 6, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Charles Lambert Baker, JR., Beatrice Marie Gooding, Paul Carl Naegely
  • Publication number: 20140005451
    Abstract: Embodiments of methods for purifying a biomass-derived pyrolysis oil are provided. The method comprises the step of contacting the biomass-derived pyrolysis oil with a first deoxygenating catalyst in the presence of hydrogen at first predetermined hydroprocessing conditions to form a first low-oxygen biomass-derived pyrolysis oil effluent. The low-oxygen biomass-derived pyrolysis oil effluent is contacted with an ionic liquid to remove phenolic compounds, nitrogen compounds and other impurities. This ionic liquid step may be followed by a second deoxygenation step or the deoxygenating may be completed and then followed by the ionic liquid purification step.
    Type: Application
    Filed: October 2, 2012
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Haiyan Wang, Alakananda Bhattacharyya, Christopher P. Nicholas
  • Patent number: 8608949
    Abstract: A process for removing a metal from a vacuum gas oil feed includes contacting the vacuum gas oil feed comprising the metal with a VGO-immiscible ionic liquid to produce a vacuum gas oil and VGO-immiscible ionic liquid mixture, and separating the mixture to produce a vacuum gas oil effluent having a reduced metal content relative to the vacuum gas oil feed.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Alakananda Bhattacharyya, Manuela Serban, Beckay J. Mezza, Kurt M. Vanden Bussche, Christopher P. Nicholas, Joseph A. Kocal, Warren K. Bennion
  • Patent number: 8608950
    Abstract: A process for removing a metal from a resid feed includes contacting the resid feed comprising the metal with a resid-immiscible ionic liquid to produce a resid and resid-immiscible ionic liquid mixture, and separating the mixture to produce a resid effluent having a reduced metal content relative to the resid feed.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Manuela Serban, Alakananda Bhattacharyya, Beckay J. Mezza, Kurt M. Vanden Bussche, Christopher P. Nicholas, Warren K. Bennion
  • Patent number: 8608943
    Abstract: A process for removing a nitrogen compound from a vacuum gas oil feed includes contacting the vacuum gas oil feed comprising the nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a vacuum gas oil and VGO-immiscible phosphonium ionic liquid mixture, and separating the mixture to produce a vacuum gas oil effluent having a reduced nitrogen content relative to the vacuum gas oil feed.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Manuela Serban, Alakananda Bhattacharyya, Beckay J. Mezza, Kurt M. Vanden Bussche, Christopher P. Nicholas, Joseph A. Kocal, Warren K. Bennion
  • Patent number: 8608952
    Abstract: A process for de-acidifying a hydrocarbon feed includes contacting the hydrocarbon feed containing an organic acid with a feed-immiscible phosphonium ionic liquid to produce a hydrocarbon and feed-immiscible phosphonium ionic liquid mixture and separating the mixture to produce a hydrocarbon effluent having a reduced organic acid content relative to the hydrocarbon feed. Optionally, a de-emulsifier is added to at least one of the contacting and separating steps.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Manuela Serban, Alakananda Bhattacharyya, Beckay J. Mezza, Kurt M. Vanden Bussche, Christopher P. Nicholas, Warren K. Bennion
  • Publication number: 20130303821
    Abstract: Systems and methods for inhibiting foam formation in an acid gas removal system are provided. Preconditioning a rich amine or triethylene glycol stream exiting an absorber of an acid gas removal system through a rotary separation turbine can provide pre-separation of gas from rich amine or triethylene glycol, as well as effectively reduces or inhibits foam formation. Systems provided enhance plant reliability and also recovers hydraulic power into electricity.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 14, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventor: Feng-Ran Sheu
  • Patent number: 8580107
    Abstract: A process for removing a sulfur compound from a vacuum gas oil feed includes contacting the vacuum gas oil feed comprising the sulfur compound with a VGO-immiscible ionic liquid to produce a vacuum gas oil and VGO-immiscible ionic liquid mixture, and separating the mixture to produce a vacuum gas oil effluent having a reduced sulfur content relative to the vacuum gas oil feed.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: November 12, 2013
    Assignee: UOP LLC
    Inventors: Alakananda Bhattacharyya, Manuela Serban, Beckay J. Mezza, Kurt M. Vanden Bussche, Christopher P. Nicholas, Joseph A. Kocal, Warren K. Bennion
  • Patent number: 8574426
    Abstract: The present invention involves a process for removing one or more polycyclic aromatic hydrocarbon compounds from a vacuum gas oil comprising contacting the vacuum gas oil with a vacuum gas oil-immiscible phosphonium ionic liquid to produce a mixture comprising the vacuum gas oil and the vacuum gas oil-immiscible phosphonium ionic liquid, and separating the mixture to produce a vacuum gas oil effluent and a vacuum gas oil-immiscible phosphonium ionic liquid effluent, the vacuum gas oil-immiscible phosphonium ionic liquid effluent comprising the polycyclic aromatic hydrocarbon compound.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: November 5, 2013
    Assignee: UOP LLC
    Inventors: Beckay J. Mezza, Alakananda Bhattacharyya, Haiyan Wang, Christopher P. Nicholas
  • Patent number: 8574427
    Abstract: A process for removing a refractory nitrogen compound from a hydroprocessed vacuum gas oil feed includes contacting the hydroprocessed vacuum gas oil feed comprising the nitrogen compound with a VGO-immiscible phosphonium ionic liquid to produce a hydroprocessed vacuum gas oil and VGO-immiscible phosphonium ionic liquid mixture, and separating the mixture to produce a hydroprocessed vacuum gas oil effluent having a reduced refractory nitrogen compound content relative to the vacuum gas oil feed.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: November 5, 2013
    Assignee: UOP LLC
    Inventors: Beckay J. Mezza, Haiyan Wang, Alakananda Bhattacharyya, Christopher P. Nicholas
  • Publication number: 20130178683
    Abstract: The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising: introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone, contacting said hydrocarbon stream in said absorption zone with an absorbent capable to absorb water and oxygenated contaminants at conditions effective to produce, an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content and an absorbent bottoms stream comprising the absorbent, hydrocarbons and having an enhanced oxygenated contaminants and water content, introducing the above absorbent bottoms stream in a stripping zone at conditions effective to produce, an absorbent bottoms stream essentially free of hydrocarbons, oxygenated contaminants and water and an overhead stream comprising essentially hydrocarbons, water and the oxygenated contaminants, recycling the absorbent bottoms stream of the stripping zone to the absorption zone, optionally fractionating the ov
    Type: Application
    Filed: December 20, 2010
    Publication date: July 11, 2013
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Laurent Avaullee, Jean-Pierre Thoret Bauchet
  • Publication number: 20130172654
    Abstract: The present invention is a process for removing oxygenated contaminants and water from an hydrocarbon stream comprising: introducing the contaminated hydrocarbon stream in a gaseous phase in an absorption zone, contacting said hydrocarbon stream in said absorption zone with an absorbent capable to absorb water and oxygenated contaminants at conditions effective to produce, an overhead hydrocarbon stream having a reduced oxygenated contaminants and water content and an absorbent bottoms stream comprising the absorbent, hydrocarbons and having an enhanced oxygenated contaminants and water content, introducing the above absorbent bottoms stream in a stripping zone at conditions effective to produce, an absorbent bottoms stream essentially free of hydrocarbons, oxygenated contaminants and water and an overhead stream comprising essentially hydrocarbons, water and the oxygenated contaminants, recycling the absorbent bottoms stream of the stripping zone to the absorption zone, optionally fractionating the ov
    Type: Application
    Filed: December 20, 2010
    Publication date: July 4, 2013
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Laurent Avaullee, Jean-Pierre Thoret Bauchet
  • Publication number: 20130165708
    Abstract: A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent that includes nitric acid to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. Methods of refining a natural oil are described.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Inventors: Bruce E. Firth, Sharon E. Kirk
  • Publication number: 20130165706
    Abstract: A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. The isomerization suppression agent is phosphorous acid, a phosphorous acid ester, phosphinic acid, a phosphinic acid ester or combinations thereof. Methods of refining natural oils are described.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Inventors: Bruce E. Firth, Sharon E. Kirk, Vasudeo S. Gavaskar
  • Patent number: 8455709
    Abstract: Apparatuses and systems for removing heavy hydrocarbons from a solvent stream are disclosed herein. The apparatuses extract heavy hydrocarbons into light hydrocarbons and provide a solvent stream having the heavy hydrocarbons removed. Two water washing steps are used to remove residual solvent from the heavy hydrocarbon solution in light hydrocarbons. In some embodiments, the second water wash is used for processing subsequent batches of the solvent stream. The heavy hydrocarbons and solvent can be recovered and processed further. Methods for removing heavy hydrocarbons from a solvent stream are also disclosed herein.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: June 4, 2013
    Assignee: GTC Technology US, LLC
    Inventors: Mircea Cretoiu, Joseph C. Gentry, Pradeep Pawar, Song Wang
  • Publication number: 20130071309
    Abstract: Aspects of the disclosure relate to the separation of gases and to a process for the removal of carbon dioxide gas using liquid absorbents.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: PETROLIAM NASIONAL BERHAD
    Inventors: David F. Wassell, Kenneth R. Seddon, Martin P. Atkins
  • Publication number: 20120273432
    Abstract: A filter device for filtering a suspension comprises at least one filter for continuous creation of a filter cake containing particles from the suspension; at least one dispensing device configured to apply at least one first wash liquid to the filter cake created by the at least one filter; and at least one steaming unit configured to steam the filter cake using steam, wherein the at least one dispensing device is integrated into a first process chamber and the at least one steaming unit is integrated into a second process chamber separated from the first process chamber by at least one partition wall. The at least one first wash liquid and a second wash liquid used for creating the steam may have boiling temperatures differing by at least 5° C.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 1, 2012
    Inventor: Urs Peuker
  • Publication number: 20120129924
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating hyperlipidemia, fatty liver, diabetes and obesity comprising a sesquiterpene derivative as an active ingredient. The sesquiterpene derivatives of the present invention leads to decrease in body fat weight, visceral fat weight and total cholesterol levels, triglyceride of plasma and liver tissue, blood glucose and blood insulin levels in a fast state, finally exhibiting efficacies on prevention or treatment of hyperlipidemia, fatty liver, diabetes and obesity.
    Type: Application
    Filed: October 20, 2008
    Publication date: May 24, 2012
    Applicant: KWANG DONG PHARM. CO., LTD.
    Inventors: Tae-Sun Park, Ha-Won Kim
  • Publication number: 20120029259
    Abstract: In various aspects, the invention provides for processing a hydrocarbon feed having hydrocarbon and emulsified aqueous components demulsifying into hydrocarbon and aqueous phases over an initial demulsification time, with an active agent to form a treated feed. The active agent has an active agent solubility in the hydrocarbon component and in the aqueous component, the aqueous component has an aqueous component solubility in the hydrocarbon component. The active agent solubility in the hydrocarbon component is greater than the aqueous component solubility in the hydrocarbon component. The active agent solubility in the aqueous component is greater than the active agent solubility in the hydrocarbon component. The active agent solubility in the aqueous component is greater than the active agent solubility in the hydrocarbon component.
    Type: Application
    Filed: December 17, 2009
    Publication date: February 2, 2012
    Applicant: SUNCOR ENERGY, INC.
    Inventors: Richard A. McFarlane, Michael Peter Singleton
  • Patent number: 8058498
    Abstract: Process for removing oxygen-containing organic compounds from mixtures of hydrocarbon compounds, in which a liquid phase (1) containing hydrocarbons and oxygenates is charged to a first column (3), a light fraction is separated as top product (5) by distillation, and that a heavier C4+ fraction is removed from the bottom, the light fraction (5) and a gaseous mixture of hydrocarbons and oxygenates (2) is charged to a second column (7), and separated into a light and a heavy hydrocarbon fraction distillation, and an additional solvent (6) is supplied to the upper part of the second column (7), which dissolves the oxygenates and, the solvent and oxygenates being discharged as bottom product (9) and a hydrocarbon product (8), which is free from oxygenates leaves the top of the column (7). The solvent optionally is wholly or partly regenerated and recirculated to the extractive distillation column.
    Type: Grant
    Filed: October 11, 2004
    Date of Patent: November 15, 2011
    Inventors: Sandra Jensen, Martin Rothaemel, Harald Koempel, Herrmann Bach, Gerhard Birke
  • Patent number: 8013197
    Abstract: A method for the absorption of alkynes and diolefins from an ethylene or propylene containing stream with conversion to alkenes by catalytic hydrogenation in a solvent over a fixed bed comprising a supported catalyst.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: September 6, 2011
    Assignee: Synfuels International, Inc.
    Inventors: Edward R. Peterson, Sean C. Gattis
  • Patent number: 7968758
    Abstract: A process for the dissociation of methyl tert-butyl ether (MTBE), which includes at least a) catalytic dissociation of MTBE which is present in two streams I and VII over a catalyst to give a dissociation product II, b) separation by distillation of the dissociation product II obtained in a) into an overhead stream III containing more than 90% by mass and a bottom stream IV containing diisobutene, MTBE and more than 80% of the methanol present in the dissociation product II, c) separation by distillation of the bottom stream IV obtained in b) into a methanol-containing bottom stream V, a side stream VI containing diisobutene, methanol and MTBE and an overhead stream VII containing MTBE and methanol and d) recirculation of the overhead stream VII to a).
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Franz Nierlich, Silvia Santiago Fernandez, Walter Luh, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
  • Patent number: 7956230
    Abstract: A method for reducing halide concentration in a hydrocarbon product made by a hydrocarbon conversion process using an ionic liquid catalyst comprising a halogen-containing an acidic ionic liquid comprising: (i) separating at least a portion of the hydrocarbon product from the ionic liquid catalyst used in the hydrocarbon conversion process from the hydrocarbon product; (ii) contacting at least a portion of the separated hydrocarbon product with an ionic liquid catalyst having the same formula as the ionic liquid catalyst used in the hydrocarbon conversion process; (iii) separating at least a portion of the hydrocarbon product from the ionic liquid catalyst of step (ii); and (iv) recovering at least a portion of the separated hydrocarbon product of step (iii) having a halide concentration less than the halide concentration of the hydrocarbon product of step (i) is disclosed.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: June 7, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung C. Timken, Michael S. Driver, Thomas V. Harris
  • Patent number: 7910786
    Abstract: Isobutene is prepared by a process in which a) an MTBE-containing stream I is separated by distillation into an MTBE-containing overhead stream II and a bottom stream III which comprises compounds having boiling points higher than that of MTBE; and b) the MTBE present in the overhead stream II is dissociated over a catalyst to give a dissociation product IV; wherein the stream I has a proportion of 2-methoxybutane (MSBE) of greater than 1000 ppm by mass, based on MTBE, and wherein the separation by distillation in step a) and/or the dissociation in step b) is carried out so that the dissociation product IV has a concentration of less than 1000 ppm by mass of linear butenes, based on a C4-olefin fraction.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: March 22, 2011
    Assignee: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
  • Patent number: 7875759
    Abstract: A process for extracting natural gas liquids (NGLs) from natural gas that involves contacting natural gas from one source with crude, or heavy, oil from a different source under conditions that promote enrichment of the crude or heavy oil with NGLs from the natural gas. Apart from functioning as an absorbent fluid, the crude or heavy oil also functions as the carrier medium for the absorbed. NGLs. When practicing the process, unlike conventional methods, there is no need to regenerate the absorbent fluid, in this case the crude and heavy oil, for recycling.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: January 25, 2011
    Inventor: Rafael Bin Mohd Shamsudin
  • Publication number: 20100261945
    Abstract: Provided is a method of separating an aromatic compound from a mixture containing the aromatic compound and an aliphatic compound. The method includes separating an aromatic compound from a mixture containing the aromatic compound and an aliphatic compound, wherein the separating is performed using a liquid-liquid extracting method using an ionic liquid as an extracting solvent.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 14, 2010
    Applicant: Samsung Engineering Co., Ltd.
    Inventors: Myong Hoon LIM, Young Mi Kim, Yong Soo Kim, Jae Eun Rho, Hyun Woo, Young Youl Koo
  • Publication number: 20100173806
    Abstract: A method of extracting hydrocarbon-containing organic matter from a hydrocarbon-containing material includes the steps of providing a first liquid comprising a turpentine liquid; contacting the hydrocarbon-containing material with the turpentine liquid to form an extraction mixture; extracting the hydrocarbon material into the turpentine liquid; and separating the extracted hydrocarbon material from a residual material not extracted.
    Type: Application
    Filed: September 17, 2008
    Publication date: July 8, 2010
    Applicant: GREEN SOURCE ENERGY LLC
    Inventors: Liang-tseng Fan, Mohammad Reza Shafie, Julius Michael Tollas, William Arthur Fitzhugh Lee
  • Patent number: 7744749
    Abstract: The reduction in the sulfur-containing content of diesel fuel is achieved by oxidation in the presence of a catalyst followed by a liquid-liquid countercurrent extraction.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: June 29, 2010
    Assignee: Saudi Arabian Oil Company
    Inventors: Gary M. Martinie, Farhan M. Al-Shahrani, Bashir O. Dabbousi
  • Patent number: 7737318
    Abstract: The invention relates to a process for preparing 1-butenic fractions having less than 2000 ppm of isobutene in relation to 1-butene from technical mixtures of C4 hydrocarbons I which contain at least 1-butene and 2000 ppmw to 8% by mass of isobutene based on the 1-butene, with or without n-butane, isobutane and/or 2-butenes.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: June 15, 2010
    Assignee: Evonik Oxeno GmbH
    Inventors: Silvia Santiago-Fernandez, Armin Rix, Jochen Praefke, Dirk Roettger, Markus Winterberg, Wilfried Bueschken
  • Patent number: 7692053
    Abstract: 1,3-butadiene is obtained by extractive distillation with a selective solvent from a C4 cut comprising C4 acetylenes as secondary components in a dividing wall column having a bottom evaporator, in which a dividing wall is disposed in the longitudinal direction of the column to form a first subregion, a second subregion and a lower combined column region. The column is disposed upstream of an extractive wash column. The energy input into the dividing wall column via the bottom evaporator is controlled in such a way that a bottom stream containing solvent, C4 acetylenes and 1,3-butadiene restricted such that the loss of 1,3-butadiene is economically acceptable, is drawn off and fed to an acetylenes outgasser where the C4 acetylenes are stripped out overhead and purified solvent is obtained as the bottom stream.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: April 6, 2010
    Assignee: BASF Aktiengesellschaft
    Inventor: Bernd Heida
  • Publication number: 20090299122
    Abstract: Process for producing purified hydrocarbon gas from a gas stream comprising methane and acidic contaminants, which process comprises the steps cooling the gas stream by expansion to form a mixture comprising solid and/or liquid acidic contaminants and a vapour containing gaseous hydrocarbons and a reduced amount of acidic contaminants; separating the solid and/or liquid acidic contaminants from the first mixture, yielding partly purified gas; compressing the partly purified gas; and contacting the compressed partly purified gas with an absorbing liquid to yield the purified hydrocarbon gas.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Inventors: Henricus Abraham GEERS, Esther Lucia Johanna Van Soest-Vercammen
  • Patent number: 7582312
    Abstract: Methods of producing lung surfactant formulations through solvent dissolution and lyophilization are described as well as surfactant formulations derived therefrom. Methods of treating respiratory distress dysfunction are also provided.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: September 1, 2009
    Assignee: Discovery Laboratories, Inc.
    Inventors: Mark Johnson, Roy Coe
  • Publication number: 20090171053
    Abstract: An object of the present invention is to provide highly pure ?-methylstyrene by efficiently removing polar substances present in the ?-methylstyrene. The present invention discloses a method for purifying ?-methylstyrene by reacting polar substances contained in the ?-methylstyrene in the presence of a basic substance, and separating a reaction product of the polar substance and the ?-methylstyrene.
    Type: Application
    Filed: April 16, 2007
    Publication date: July 2, 2009
    Inventors: Yuji Okada, Kenji Ebara
  • Patent number: 7553406
    Abstract: This invention relates to a process for removing polarizable impurities from hydrocarbons and mixtures of hydrocarbons using ionic liquids as an extraction medium. By way of extraction, the degree of contamination of the hydrocarbon or mixture of hydrocarbons is reduced to a low or very low level. The specific ionic liquids are compounds of the Formula 1, which are organic salts that are liquid or can be melted to form a liquid and that can form at least a biphasic mixture with a hydrocarbon. The process is suitable for purifying a wide range of hydrocarbons under a wide range of process conditions.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: June 30, 2009
    Assignee: Merck Patent GmbH
    Inventors: Peter Wasserscheid, Andreas Bösmann, Andreas Jess, Leonid Datsevich, Christoph Schmitz, Andrea Wendt
  • Publication number: 20090112041
    Abstract: The invention relates to a process to reduce the pour point of a waxy paraffinic feedstock comprising a fraction boiling above 450° C. by diluting said feedstock with a solvent comprising an aliphatic ketone compound and an aromatic compound, wherein the volume ratio of ketone compound to aromatic compound is lower than 0.7:1, chilling the mixture to a temperature at which wax is caused to precipitate, physically removing the wax from an oil phase and recovering an oil product having a lower pour point than the waxy paraffinic feedstock, wherein at least part of the waxy paraffinic feedstock is derived from Fischer-Tropsch synthesis products.
    Type: Application
    Filed: June 22, 2006
    Publication date: April 30, 2009
    Inventors: Gilbert Robert Bernard Germaine, Francois Panissaud
  • Patent number: 7465846
    Abstract: This invention relates to a commercially viable process for extracting oxygenates from a hydrocarbon stream, typically a fraction of the condensation product of a Fischer-Tropsch reaction, while preserving the olefin content of the condensation product. The oxygenate extraction process is a liquid-liquid extraction process that takes place in an extraction column using a polar organic solvent, such as methanol, and water as the solvent, wherein the polar organic solvent and water are added separately to the extraction column.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: December 16, 2008
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Johan Pieter de Wet, Wilhelmina Jansen, Paul Jacobson
  • Patent number: 7462277
    Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: December 9, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Till Adrian, Thomas Hill, Klaus Kindler, Bernd Heida