Separation Of Gas Mixture Patents (Class 62/617)
  • Patent number: 10753679
    Abstract: A system and method for capturing and separating carbon dioxide from mixed gas streams. The gas stream is processed in a structure including a compression module comprising a plurality of compressors, intercoolers and inter-stage condensate separators. The flow path from the compression module includes a plurality of flow separators, gas stream splitters, heat exchangers and at least a first mixer and a first expander. The gas stream is sequentially compressed and cooled to form process condensate and separate it from the compressed gas stream. The gas stream is further dried and cooled to liquefy carbon dioxide and separate it from the non-condensable portion. Selective expansion of liquid carbon dioxide streams provides cooling for the system, and further energy efficiency is achieved by selective recycling of portions of gas streams, allowing for compact equipment and economical operation, while providing for high purity product streams of carbon dioxide.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: August 25, 2020
    Assignee: HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF NATURAL RESOURCES
    Inventors: Kourosh Zanganeh, Ahmed Shafeen
  • Patent number: 10722812
    Abstract: A process to prevent fouling using a desublimating heat exchanger is disclosed. An outlet stream from the desublimating heat exchanger may be split into a plurality of parallel streams. The parallel streams may be sent through a plurality of discrete unit operations, and the unit operations may change the temperature of at least one of the parallel streams. Parallel streams of differing temperature may emerge from the unit operations. The parallel streams which are of a similar temperature may be mixed to form a warm stream and a cool stream. The warm stream and the cool stream may be sent to a mixing chamber. A mixed stream of substantially uniform temperature may emerge from the mixing chamber, and the mixed stream may be recycled back to the desublimating heat exchanger. The mixing chamber may be separate from the desublimating heat exchanger, or the parallel streams of differing temperature may be mixed in the desublimating heat exchanger.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 28, 2020
    Assignee: Hall Labs LLC
    Inventors: Larry Baxter, Kyler Stitt, Aaron Sayre, Christopher Hoeger
  • Patent number: 10577552
    Abstract: An in-line L-Grade recovery system having a first in-line separator in communication with a natural gas stream and configured to separate the natural gas stream into a gas stream and a liquid stream, a second in-line separator in communication with the first in-line separator and configured to separate the liquid stream into L-Grade and water, and a storage tank in communication with the second in-line separator and configured to store the L-Grade.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: March 3, 2020
    Assignee: Linde Aktiengesellschaft
    Inventors: John A. Babcock, Charles P. Siess, III
  • Patent number: 10464813
    Abstract: This invention is aimed at recovering and purifying nitrous oxide from the gas stream containing N2O to produce different grade of nitrous oxide by combination of unit operation including, but not limited to, wet scrubbing, adsorption, liquefaction, flash distillation or continuous distillation with reflux.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 5, 2019
    Assignee: VERSUM MATERIALS US, LLC
    Inventors: Guohua Xiu, Peng Zhang
  • Patent number: 10456734
    Abstract: Included are a CO2 absorber for removing CO2 from a CO2-containing flue gas with a CO2 absorbent, an absorbent regenerator for regenerating the absorbent, a rich solution supply line for supplying the rich solution from the absorber to a rich solution supply portion of the regenerator, a rich/lean solution heat exchanger for exchanging heat between the rich solution and the lean solution, a first rich solution dividing line for dividing the rich solution at a first dividing portion in the rich solution supply line and supplying the divided rich solution at a first supply position on a side wall of the regenerator, a first rich solution heat exchanger for preheating the divided rich solution, and a first flow rate control device for controlling a flow rate of the divided rich solution such that the rich solution is preheated to a predetermined temperature in the first rich solution heat exchanger.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: October 29, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
    Inventors: Tatsuya Tsujiuchi, Takashi Kamijo, Masayuki Inui, Osamu Miyamoto
  • Patent number: 10451008
    Abstract: The compression system comprises a main fluid inlet adapted to receive a production stream of natural gas; first and second stage scrubbers; first and second compression units; first and second heat exchange units; one or more liquid dump containers; and an engine. The engine operates within a range of 1600-2100 revolutions per minute and the compressed gas comprises a pressure within a range of 360-600 pounds per square inch. The system comprises a weight to thousand cubic feet of gas per day ratio of less than twenty.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: October 22, 2019
    Assignee: Precision Compression, LLC
    Inventor: Brian Benge
  • Patent number: 10350512
    Abstract: A system and apparatus for atmospheric water generation using alternative cold sources provides a thermally conductive thermal transfer media of carbon graphitic foam for capturing cold energy by direct or indirect exposure thereto, transferring the cold energy to a condenser exposed to air having moisture, and for condensing the moisture from the air into liquid and collecting the liquid water.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 16, 2019
    Assignee: Eco Squared Solutions, Inc.
    Inventor: Charles B. Rau, III
  • Patent number: 10252912
    Abstract: The invention relates to a method of separating a phosgene- and hydrogen chloride-comprising stream (5), wherein said method comprises conveying the hydrogen chloride- and phosgene-comprising stream (5) into a distillation column (1), withdrawing at the bottom of the distillation column (1) a phosgene-comprising stream (7) and withdrawing at the top of the column an essentially hydrogen chloride-comprising stream (9). At least a portion of the stream (9) withdrawn at the top is compressed and at least partially condensed and at least a portion of the liquid and compressed essentially hydrogen chloride-comprising stream is decompressed and recycled into the top of distillation column (1) as reflux.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 9, 2019
    Assignee: BASF SE
    Inventors: Heiner Schelling, Torsten Mattke, Hans-Juergen Pallasch, Kai Thiele
  • Patent number: 10246394
    Abstract: A method for the processing, by separation technology, of a product stream (g), containing at least dimethyl ether, methanol, water, carbon dioxide, carbon monoxide and hydrogen, from a reactor (4) used for the synthesis of dimethyl ether (z) from synthesis gas (e), is proposed. The product stream (g) is fed, in at least partially gaseous form, into an absorption column (6) operated with a liquid reflux, a gaseous top stream (m) being removed from the absorption column (6) at the top and a liquid sump stream (p) being removed at the bottom. The sump stream (p) is at least partially fed into a first distillation column (5), a gaseous transfer stream (q) containing dimethyl ether and a stream (r) predominantly containing methanol and/or water being removed from the first distillation column (5).
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 2, 2019
    Assignee: LINDE AKTIENGESELLSCHAFT
    Inventors: Helmut Fritz, Andreas Peschel
  • Patent number: 10005032
    Abstract: In one embodiment, a carbon dioxide recovery apparatus includes a heat exchanger which heats a first rich liquid, a flow divider which divides the first rich liquid heated by the heat exchanger into a second rich liquid and a third rich liquid, a first release device which heats the second rich liquid and discharges a first semi-lean liquid, a second release device which heats the third rich liquid and discharges a second semi-lean liquid, and a regeneration tower which heats the first and second semi-lean liquids to generate a lean liquid. The first release device heats the second rich liquid, using the lean liquid. The second release device heats the third rich liquid, using a carbon dioxide-containing steam discharged at the regeneration tower. The heat exchanger heats the first rich liquid, using the lean liquid which has passed through the first release device.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: June 26, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hideo Kitamura, Satoshi Saito, Mitsuru Udatsu
  • Patent number: 9789440
    Abstract: A pollution reduction system includes a catalytic converter, fabric filtration and a plurality of cyclonic separators to effectively reduce CO, VOCs and particulate matter emissions from biomass fuel-fired furnaces, while efficiently extracting heat from exhaust gas.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: October 17, 2017
    Inventor: Jeffrey R. Hallowell
  • Patent number: 9675904
    Abstract: A regeneration tower may include: a rich absorbent liquid supplier that supplies rich absorbent liquid into a first housing; a rectifier positioned below the rich absorbent liquid supplier and rectifying flow of the rich absorbent liquid supplied downwardly in the first housing; a reboiler positioned below the rectifier and separating regeneration gas from the rich absorbent liquid by boiling the rich absorbent liquid; a separator that supplies the rich absorbent liquid from the rectifier to the rich absorbent liquid tank, bypassing the regeneration gas generated in the reboiler into the first housing through a path different from a supply path of the rich absorbent liquid to the reboiler; and a lean absorbent liquid tank receiving lean absorbent liquid from which the regeneration gas is separated in the reboiler, where the reboiler receives the rich absorbent liquid only through the rich absorbent liquid tank.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 13, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Institute of Energy Research
    Inventors: Sungyeoul Park, Yeoil Yoon, Sungchan Nam, Shin-Tae Bae
  • Patent number: 9618261
    Abstract: The present techniques are directed to a system and method for generating power and producing liquefied natural gas (LNG). The system includes a power plant configured to generate power, wherein an exhaust gas from the power plant provides a gas mixture including nitrogen and carbon dioxide. The system also includes a dehydration system configured to dehydrate the gas mixture to generate a nitrogen refrigerant stream and a refrigeration system configured to produce LNG from a natural gas stream using the nitrogen refrigerant stream.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: April 11, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard A. Huntington, Stanley O. Uptigrove, Russell H. Oelfke, O. Angus Sites
  • Patent number: 9504934
    Abstract: For an n-component mixture (n?3), an array of new distillation columns is disclosed with vertical partitions that allow independent control of the vapor flowrates in each partitioned zone, while operating the columns to produce constituent product streams. Specifically, all such more operable columns with vertical partitions for ternary and quaternary feed mixtures are illustrated. For a ternary feed, through extensive computation, the minimum heat duty for each of the new columns is same as for the FTC configuration. The new columns with vertical partitions become even more attractive when the vapor split between column sections must be controlled within a narrow range. Finally, it is disclosed how a new column with vertical partition(s) drawn for an n-component mixture can be adapted to distil feed mixtures that contain more than n-components.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: November 29, 2016
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Rakesh Agrawal, Gautham Madenoor Ramapriya
  • Patent number: 9285163
    Abstract: In a cooling and compressing process, a wet feed gas (1) that is rich in carbon dioxide is scrubbed with water and with an antifreeze agent in a column (3) in order to produce a flow of gas that is rich in carbon dioxide, water-depleted and cooled, the flow of gas rich in carbon dioxide is compressed in a compressor (20) and a liquid rich in carbon dioxide (18) is vaporized in order to cool the water and antifreeze agent before sending them to the scrubbing operation, it being possible for the liquid to originate from an external source.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: March 15, 2016
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Alain Briglia, Philippe Court, Arthur Darde
  • Patent number: 9126904
    Abstract: The present invention relates to a process for preparing isocyanates by reacting amines with phosgene in the liquid phase, where phosgene, hydrogen chloride and isocyanates are separated with stripping columns operated at different pressures.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 8, 2015
    Assignee: BASF SE
    Inventors: Torsten Mattke, Markus Hiller, Hans-Juergen Pallasch
  • Publication number: 20150128642
    Abstract: A supercritical water oxidation treatment system for organic wastewater with a high salinity crystallizes high-salinity wastewater by a low temperature of liquid oxygen, and decreases an inorganic salt content in the wastewater. Under supercritical water conditions, a hydrocyclone (4) separates most precipitated solid salts in the wastewater, so effectively prevents pipes and the tubular reactor (22) after the hydrocyclone (4) from plugging. Inorganic salts are able to be continuously separated from the system by the hydrocyclone (4) at the bottom of a desalination device, In addition, excess oxygen and gaseous products CO2 are recovered by a separation recovery part. The reaction time and the reaction temperature of supercritical water oxidation reaction are lowered due to the installation of a simple post-treatment unit (37). Moreover, the heat of the reactor effluent with a high temperature is recovered in the system, so operation cost of the system is reduced evidently.
    Type: Application
    Filed: December 5, 2012
    Publication date: May 14, 2015
    Inventors: Shuzhong Wang, Donghal Xu, Xingying Tang, Yanmeng Gong, Jie Zhang, Yuzhen Wang
  • Publication number: 20150114034
    Abstract: In a process for separating “heavy” impurities such as hydrogen sulfide from crude carbon dioxide comprising significant quantities of “light” impurities such as non-condensable gases, involving at least one heat pump cycle using as working fluid a fluid from the “heavy” impurity separation, the “light” impurities are removed from carbon dioxide-enriched gas generated in the “heavy” impurity separation. The carbon dioxide-enriched gas, or a compressed carbon dioxide-enriched gas produced therefrom, is at least partially condensed by indirect heat exchange against intermediate liquid also generated in the “heavy” impurity separation. Total and specific energy consumption is reduced compared to conventional processes in which “light” impurities are removed from carbon dioxide product gas.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Inventors: Paul Higginbotham, Galip Hakan Guvelioglu, John Eugene Palamara, Vincent White
  • Publication number: 20150114033
    Abstract: In a process for separating at least one “heavy” impurity such as hydrogen sulfide from crude carbon dioxide comprising significant quantities of at least one “light” impurity such as non-condensable gases, involving at least one heat pump cycle using carbon dioxide-containing fluid from the process as the working fluid, the “light” impurity is removed from the crude carbon dioxide and carbon dioxide is subsequently recovered from the removed “light” impurity, thereby improving overall carbon dioxide recovery and efficiency in terms of energy consumption.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Inventors: Paul Higginbotham, Galip Hakan Guvelioglu, John Eugene Palamara, Vincent White
  • Publication number: 20150107298
    Abstract: A hydrogen recycle process and system for use with chemical vapor deposition (CVD) Siemens type processes is provided. The process results in substantially complete or complete hydrogen utilization and substantially contamination-free or contamination-free hydrogen.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 23, 2015
    Inventors: Vithal Revankar, Sanjeev Lahoti
  • Publication number: 20150068247
    Abstract: A distillation apparatus of the present invention includes: a distillation column group in which a plurality of distillation columns (D1, D2, D3), which are respectively equipped with a reboiler (R1, R2, R3), is connected in the form of a distillation cascade; feed-gas condensers (C?2, C?3) which liquefy feed gases from respective former distillation columns (D1, D2) and feed said liquefied feed gases to respective latter distillation columns (D2, D3); gas-feeding lines (QA2, QA3) which connect the respective former distillation columns (D1, D2) and the respective feed-gas condensers (C?2, C?3); and liquid-feeding lines (QG2, QG3) which connect the respective feed-gas condensers (C?2, C?3) and the respective latter distillation columns (D2, D3).
    Type: Application
    Filed: March 19, 2013
    Publication date: March 12, 2015
    Inventor: Hitoshi Kihara
  • Publication number: 20150059402
    Abstract: According to certain embodiments of the invention, a gas containing at least 50% of carbon dioxide is cooled in a first exchanger so as to produce a cooled fluid, a liquid derived from the cooled fluid is sent to a distillation column to be separated therein, a head gas is withdrawn from the distillation column and reheated in the first exchanger, a vat liquid, which is richer in carbon dioxide than the gas containing at least 50% of carbon dioxide, is withdrawn and at least a portion thereof is heated in the first exchanger, at least a first portion of the vat liquid is vaporized in the first exchanger in order to produce a vaporized portion, the vaporized portion is sent back to the column and an NOx removal column is supplied with the liquefied cycle gas produced by vaporizing and reliquefying the vat liquid from the column.
    Type: Application
    Filed: March 5, 2013
    Publication date: March 5, 2015
    Inventors: Alain Briglia, Arthur Darde, Frederick Lockwood, Xavier Traversac
  • Patent number: 8966937
    Abstract: A process and to an apparatus for the generation and separation of a mixture of hydrogen and carbon monoxide is provided.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: March 3, 2015
    Assignee: L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Natacha Haik-Beraud, Antoine Hernandez, Pascal Marty, Bernd Polster
  • Publication number: 20150052939
    Abstract: A modular compressor and condensation system is provided with standard sized piping modules, pumping modules and air cooler modules. The modules are designed for standardized shipment and assembly on site with significantly decreased time in start up compared to customized systems. The system may be assembled in the factory for complete testing with only a minimum level of testing necessary at the installation site.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Richard L. Russeff, Gary W. Lowe, Jacob S. Rader
  • Publication number: 20150047390
    Abstract: In a process for separating a gas rich in carbon dioxide by distillation, the gas rich in carbon dioxide is cooled in a heat exchanger and is sent to a distillation column, a gas depleted in carbon dioxide is withdrawn from the top of the column and a liquid enriched in carbon dioxide is withdrawn from the bottom of the column, a gas enriched in carbon dioxide is compressed in a compressor down to a first pressure and at least one portion of the gas enriched in carbon dioxide originating from the compressor is expanded from the first pressure to a second pressure lower than the first pressure, for example the pressure of the column, and the expanded gas is used to heat the bottom of the column.
    Type: Application
    Filed: October 23, 2012
    Publication date: February 19, 2015
    Inventors: Authur Darde, Xavier Traversac
  • Publication number: 20150027165
    Abstract: The present invention is a novel method for removing tritium oxide contamination from a solution with water. The method captures the tritium oxide in a much smaller volume suitable for economical disposal. In so doing the original water is decontaminated of the tritium oxide and may be discharged.
    Type: Application
    Filed: May 27, 2014
    Publication date: January 29, 2015
    Inventors: Randall N. Avery, Charlie Booth, Keith Moser
  • Publication number: 20150027164
    Abstract: In one embodiment, a carbon dioxide separating and capturing system includes an absorption tower to allow a gas containing carbon dioxide to contact with an absorption liquid and discharge a first rich liquid which is the absorption liquid having absorbed the carbon dioxide, and a regeneration tower to cause the absorption liquid to release a gas containing the carbon dioxide and discharge a lean liquid whose carbon dioxide concentration is lower than that of the rich liquid. The system further includes a reboiler to heat the absorption liquid in the regeneration tower by using steam, and a flow divider to divide the first rich liquid into second and third rich liquids. The system further includes a first heat exchanger to heat the second rich liquid by using the lean liquid, and a second heat exchanger to heat the third rich liquid by using water discharged from the reboiler.
    Type: Application
    Filed: January 15, 2014
    Publication date: January 29, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takashi OGAWA, Hideo Kitamura
  • Publication number: 20150013349
    Abstract: A low-temperature device for separating and purifying gas based on a small-sized low-temperature refrigerating machine includes a primary, secondary and quaternary heat exchanger, at least one small-sized low-temperature refrigerating machine, and at least one liquid collecting tank. The small-sized low-temperature refrigerating machine includes a first cold head and a second cold head, the secondary heat exchanger is provided on the first cold head to form a primary cold head heat exchanger, the quaternary heat exchanger is provided on the second cold head to form a secondary cold head heat exchanger, a mixed gas outlet is connected to an inlet of the primary cold head heat exchanger. By using primary and secondary cold heads of the small-sized low-temperature refrigerating machine as cold sources, gases having different condensing temperature are liquefied and solidified separately, and two or more gases can be separated and purified at a lower cost.
    Type: Application
    Filed: March 23, 2012
    Publication date: January 15, 2015
    Applicant: CSIC PRIDE (NANJING) CRYOGENIC TECHNOLOGY CO., LTD.
    Inventors: Wenqing Dong, Wei Chao, Jie Chen, Ao Li, Jinlin Gao
  • Publication number: 20140377164
    Abstract: A process of producing degassed liquid sulfur within a horizontal sulfur condenser may include condensing a portion of a Claus process gas introduced into a condenser tube to produce liquid sulfur; creating first and second chambers above a liquid sulfur reservoir with a baffle; passing the liquid sulfur and the Claus process gas into the first chamber; forcing the Claus process gas from the liquid reservoir within the first chamber to the second chamber; causing a chemical reaction between dissolved hydrogen sulfide in the liquid sulfur and sulfur dioxide from the Claus process gas on a catalyst to produce elemental sulfur and reducing the dissolved H2S content of the remaining sulfur; converting hydrogen sulfide by a Claus reaction; decomposing polysulfanes to hydrogen sulfide and sulfur, freeing elemental sulfur from hydrogen sulfide; forcing the Claus process bubbles from the liquid reservoir into the second chamber above the liquid reservoir.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 25, 2014
    Applicant: PHILLIPS 66 COMPANY
    Inventor: Alfred E. Keller
  • Publication number: 20140366576
    Abstract: This invention is aimed at recovering and purifying nitrous oxide from the gas stream containing N2O to produce different grade of nitrous oxide by combination of unit operation including, but not limited to, wet scrubbing, adsorption, liquefaction, flash distillation or continuous distillation with reflux.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 18, 2014
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Guohua Xiu, Peng Zhang
  • Patent number: 8911535
    Abstract: A process for efficiently removing carbon dioxide from a hydrocarbon containing feed stream utilizing a membrane separation unit in conjunction with a heat exchanger and a carbon dioxide separation unit wherein the streams obtained in the carbon dioxide separation unit are utilized to provide the cooling effect in the heat exchanger.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: December 16, 2014
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Sudhir S. Kulkarni, Edgar S. Sanders, Jr.
  • Patent number: 8900355
    Abstract: Impure carbon dioxide (“CO2”) comprising a first contaminant selected from the group consisting of oxygen (“O2”) and carbon monoxide (“CO”) is purified by separating expanded impure carbon dioxide liquid in a mass transfer separation column system. The impure carbon dioxide may be derived from, for example, flue gas from an oxyfuel combustion process or waste gas from a hydrogen (“H2”) PSA system.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: December 2, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Vincent White, Rodney John Allam
  • Publication number: 20140338395
    Abstract: Embodiments described herein provide methods and systems for generating a CO2 product stream. A method described includes generating a liquid acid gas stream including H2S and CO2. The liquid acid gas stream is flashed to form a first vapor stream and a bottom stream. The bottom stream is fractionated to form a second vapor stream and a liquid acid waste stream. The first vapor stream and the second vapor stream are combined to form a combined vapor stream. The combined vapor stream is treated in an absorption column to remove excess H2S, forming the CO2 product stream.
    Type: Application
    Filed: November 16, 2012
    Publication date: November 20, 2014
    Inventors: Russell H. Oelfke, Tor Vestad
  • Publication number: 20140338394
    Abstract: In one embodiment, a carbon dioxide separating and capturing apparatus includes an absorption tower to allow a gas containing carbon dioxide to contact with an absorption liquid and discharge a rich liquid, a regeneration tower to cause the absorption liquid to release a gas containing the carbon dioxide and discharge a lean liquid, and first and second regenerative heat exchangers to heat the rich liquid with the lean liquid. The first regenerative heat exchanger heats the rich liquid with the lean liquid from the second regenerative heat exchanger and discharges the rich liquid in a liquid phase, and the second regenerative heat exchanger heats the rich liquid in the liquid phase with the lean liquid from the regeneration tower. The lean liquid from the first regenerative heat exchanger and the rich liquid from the second regenerative heat exchanger are fed to the absorption and regeneration towers, respectively.
    Type: Application
    Filed: January 24, 2014
    Publication date: November 20, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yukio Oohashi, Takashi Ogawa, Hideo Kitamura
  • Publication number: 20140331715
    Abstract: Process for producing purified synthesis gas from soot-containing synthesis gas having a temperature of at least 5° C. above its dew point comprising the steps of (a) cooling the soot-containing synthesis gas to a temperature below its dew point by indirect heat exchange in a shell-tube heat exchanger without removing the condensate formed, thereby forming a synthesis gas/condensate mixture; and (b) contacting the synthesis gas/condensate mixture with a scrubbing liquid to remove the condensate resulting in a purified synthesis gas and used scrubbing liquid, wherein the soot-containing synthesis gas in step (a) is passed through the shell-tube heat exchanger at the tube side.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 13, 2014
    Inventors: Jacobus Eilers, Arjan Allert Jonckers, Leendert Johannes Arie Zoetemeijer
  • Patent number: 8882890
    Abstract: Embodiments of apparatuses and methods for separating liquefiable hydrocarbons from H2-, hydrocarbon-containing gas streams are provided. In one example, a method comprises positioning a H2-, hydrocarbon-containing gas stream in an internal volume of a vessel below a heat exchange absorption section. A hydrocarbon-containing liquid stream is positioned in the internal volume above the heat exchange absorption section. The hydrocarbon-containing liquid stream is countercurrent contacted with at least a portion of the H2-, hydrocarbon-containing gas stream along a tube portion of the heat exchange absorption section to separate H2 and C3+ hydrocarbons. The hydrocarbon-containing liquid stream and the at least the portion of the H2-, hydrocarbon-containing gas stream are cooled along the tube portion to facilitate separating H2 and C3+ hydrocarbons.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: November 11, 2014
    Assignee: UOP LLC
    Inventors: Frank S. Rosser, Larry D. Awe
  • Publication number: 20140326021
    Abstract: The invention relates to an inerting system as well as an inerting method for reducing oxygen in which an oxygen content which is predefinable and reduced in comparison to normal ambient air is set and maintained in the spatial atmosphere of an enclosed room (2). To this end, the inerting system (1) comprises a compressor system (3) for compressing an initial gas mixture as well as a gas separation system (10) connected to the compressor system (3). At least a portion of the oxygen contained within the compressed initial gas mixture is separated in the gas separation system (10). The gas separation system (10) is designed to be selectively operated in either a VPSA mode or a PSA mode.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Applicant: Amrona AG
    Inventor: Ernst Werner Wagner
  • Patent number: 8869553
    Abstract: A process and a device for the cryogenic separation of a mixture of hydrogen and carbon monoxide, in particular of a mixture having, as main components, hydrogen and carbon monoxide is presented.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: October 28, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Philippe Court, Antoine Hernandez
  • Publication number: 20140305161
    Abstract: There is provided a method and an apparatus for efficiently obtaining 2,3,3,3-tetrafluoropropene with low contents of both organic impurities and water. The method for continuously purifying crude 2,3,3,3-tetrafluoropropene containing water and one or more organic impurities, the method including using an apparatus having a distillation column with X stages (3?X, the stage closest to a column top is the first stage) and a unit for cooling and condensing a distillate; supplying the crude 2,3,3,3-tetrafluoropropene to an m-th stage (n+1?m?X, 2?n?X?1) of the distillation column, recirculating at least part of the distillate cooled and condensed in the unit for cooling and condensing to an h-th stage (1?h?n?1) of the distillation column; and taking out a liquid phase part of an n-th stage of the distillation column to obtain a purified product of 2,3,3,3-tetrafluoropropene.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 16, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi Kawaguchi, Hirokazu Takagi, Masaaki Tsuzaki, Masato Fukushima, Hidekazu Okamoto
  • Publication number: 20140305162
    Abstract: Process for the purification and separation of a synthesis gas stream containing hydrogen, carbon monoxide and carbon dioxide in which synthesis gas is purified in a purification unit (W) involving a methanol washing step to remove carbon dioxide, the carbon dioxide depleted synthesis gas is purified by adsorption (P) to produce a purified synthesis gas stream and the purified gas stream is sent to a cryogenic separation unit (C) where it is cooled and separated by cryogenic separation in a column of a column system, at least one stream (13) enriched in carbon monoxide is removed from a column of the column system, warmed and divided in two, one part of the stream being removed from the cryogenic separation unit as a first stream, the other part of the stream forming a second stream (13B, 15B) and being sent to the purification unit wherein it is warmed and the warmed second stream is mixed with the first stream.
    Type: Application
    Filed: November 13, 2012
    Publication date: October 16, 2014
    Inventors: Guylaine Callens, Antoine Hernandez, Pascal Marty, Manfred Meyer, Denis Prost, Alexander Schriefl, Jean-Marc Tsevery, Marie-Pascal Victor
  • Patent number: 8852318
    Abstract: In a method for compressing a water-containing CO2-rich fluid wherein the CO2-rich fluid is compressed in a compressor located upstream from the compression step, an antifreeze agent is injected into the water-containing CO2-rich fluid in order to lower the water solidification temperature. The antifreeze agent-containing CO2-rich fluid is frozen, water is extracted from the frozen fluid, and the frozen fluid is compressed in the compressor.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 7, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'exploitation des Procedes Georges Claude
    Inventors: Alain Briglia, Arthur Darde
  • Patent number: 8845786
    Abstract: The present invention relates to a method for purifying a gas stream including CO2, elemental mercury (Hg0) and nitrogen oxides (NOx).
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: September 30, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Alain Briglia, Christian Monereau
  • Publication number: 20140260419
    Abstract: A portion of the overhead vapor from a distillation column is used to heat a process stream. The temperature and flow rate of the stream out of a heat exchanger are controlled so that the vapor is condensed.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: UOP LLC
    Inventors: Paul C. Steacy, Lawrence W. Miller, Thuy T. Vu
  • Patent number: 8828122
    Abstract: A system includes an acid gas removal (AGR) system configured to remove an acid gas from an untreated syngas to generate a treated syngas, a hydrogen separation system configured to receive the treated syngas to generate a non-permeate and a permeate, and an expander configured to expand the non-permeate to generate a cooled non-permeate. The AGR system includes a solvent chiller configured to cool a solvent via heat exchange with the cooled non-permeate.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: September 9, 2014
    Assignee: General Electric Company
    Inventors: Pradeep Stanley Thacker, Sachin Suhas Naphad, Rupinder Singh Benipal
  • Patent number: 8828350
    Abstract: A system and method are provided for recovering a re-usable grade of sulphur hexafluoride (SF6) from a potentially contaminated gas source. The system includes extraction vessels connected to the potentially contaminated gas source. A first cryogenic means reduces the temperature of the extraction vessel to a temperature below the phase transition of SF6 causing a pressure differential which causes the potentially contaminated gas to enter the extraction vessels. The SF6 turns to liquid and/or solid form in the extraction vessel. Non-condensed contaminant gas is evacuated from the extraction vessels. Recovery vessels are connected to the extraction vessel. A second cryogenic means is used to reduce the temperature of the recovery vessels. Raising the temperature of the extraction vessels creates a pressure differential which causes a re-usable grade of SF6 to enter the recovery vessels.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: September 9, 2014
    Assignee: ABB Technology Ltd.
    Inventor: Anthony Stokes
  • Publication number: 20140245781
    Abstract: The invention relates to a process for removing oxygen from liquid argon using a TSA (temperature swing adsorption) cyclical process that includes cooling an adsorbent bed to sustain argon in a liquid phase; supplying the adsorbent bed with a liquid argon feed that is contaminated with oxygen and purifying the liquid argon thereby producing an argon product with less oxygen contaminant than is in the initial liquid argon feed; draining the purified residual liquid argon product and sending purified argon out of the adsorbent bed. Regeneration of specially prepared adsorbent allows the adsorbent bed to warm up to temperatures that preclude the use of requiring either vacuum or evacuation of adsorbent from the bed.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Inventors: Persefoni E. Kechagia, Neil A. Stephenson, Philip A. Barrett, Hai Du, Steven J. Pontonio
  • Publication number: 20140238023
    Abstract: A device for automatically detecting and removing air from a gas mixture of an organic gas and air includes calculating a saturation pressure value based on a temperature of the gas mixture in a reservoir 1, and obtaining a pressure threshold value by adding a margin value to the saturation pressure value. When the pressure value inside the reservoir 1 is higher than the pressure threshold value, air is detected to be in the gas mixture. After this detection, a controller 5 pressurizes and introduces the gas mixture into a pressure container 2 to condense the organic gas in the gas mixture, thus producing a diluted gas mixture. Subsequently, the diluted gas mixture is introduced to a supply side of a membrane unit 3, the organic gas in the diluted gas mixture is recovered at a permeation side thereof, and a residual gas is discharged outside of the device.
    Type: Application
    Filed: October 19, 2012
    Publication date: August 28, 2014
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Mikiko Hatama, Kokan Kubota, Yoshitaka Kawahara, Hiroaki Sgu, Ichiro Myogan, Isamu Osawa
  • Publication number: 20140216104
    Abstract: Proposed is a method for dehydrating a CO2 containing gas (1) by cooling the gas (1) and separating the condensed water from the gas (1), wherein the gas is contacted with liquid CO2 to condense water contained in the gas (1) and the condensate is separated from the remaining gas. Further, a device for dehydrating a CO2 containing gas is proposed, comprising a gas feeding system for feeding the gas which has to be dehydrated, wherein the device comprises a CO2 feeding system for feeding liquid CO2, a contacting device (C) for contacting the gas and the liquid CO2 for cooling the gas (1) to condense the water contained in the gas (1), and which comprises a first separator (4) for separating the condensate from the remaining gas.
    Type: Application
    Filed: October 10, 2012
    Publication date: August 7, 2014
    Applicant: VICTORIA CAPITAL INVESTMENTS GROUP LTD.
    Inventors: Salavat Zainetdinovich Imaev, Leonard Makarovich Dmitriev
  • Publication number: 20140208798
    Abstract: An integrated apparatus for separating a mixture of carbon dioxide and at least one other gas and for separating air by air distillation is provided. The apparatus includes a CO2 separation unit configured to separate the mixture, an air separation unit configured to separate air by cryogenic distillation, a water cooling tower that operates by direct contact, a line for sending water to the top of the tower, a line for sending at least one portion of the nitrogen-enriched gas stream to a lower level of the tower, a cooled water line for withdrawing cooled water from the tower and means for cooling the air upstream of the air separation unit, the cooled water line being connected to means for cooling the air upstream of the air separation unit and to the inlet and/or to the outlet of the unit for separating the gaseous mixture.
    Type: Application
    Filed: May 29, 2012
    Publication date: July 31, 2014
    Applicant: L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Marie Cognard, Arthur Darde, Benoit Davidian, Richard Dubettier-Grenier, Frederick Lockwood, Christophe Szamlewski, Xavier Traversac
  • Patent number: RE45309
    Abstract: Systems and methods of capturing and sequestering carbon dioxide, comprising mixing a substantially non-aqueous solvent and an alkali such that the solvent and alkali form a solvent suspension, mixing water and a flue gas containing carbon dioxide with the solvent suspension such that a reaction occurs, the reaction resulting in the formation of a carbonate, water and heat.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: December 30, 2014
    Assignee: Expansion Energy LLC
    Inventor: David Vandor