And Liquid Contact (e.g., Scrubbing, Sorption, Etc.) Patents (Class 95/42)
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Patent number: 11852376Abstract: Devices, systems, facilities, and processes for direct air capture combined with carbon capture for reducing the overall emissions are disclosed herein. An exemplary system may include a first air blower configured to move a CO2 containing gas through a carbon capture unit; the carbon capture unit configured to separate and capture CO2 from the CO2 containing gas to generate a first CO2 rich stream; a second air blower configured to move an air from an air-cooled heat exchanger to a direct air capture unit; the direct air capture unit configured to capture CO2 from the air from the air-cooled heat exchanger to generate a second CO2 rich stream; and a sequestration compression unit configured to compress the first and second CO2 rich streams.Type: GrantFiled: March 14, 2023Date of Patent: December 26, 2023Assignee: NEXT CARBON SOLUTIONS, LLCInventors: Ivan Van der Walt, Ben Heichelbech, Connor Rivard, Vikrum Subra
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Patent number: 11161076Abstract: Devices, systems, and methods for power plant facilities are disclosed herein. A power plant facility includes a gas turbine; and a power generator that generates electricity from power supplied by the gas turbine. The power plant facility can also include at least one post-combustion capture unit that generates a CO2-rich stream from the combustion products of the gas turbine; and a sequestration compression unit that compresses and conveys at least one CO2-rich stream from a post-combustion capture unit, towards a sequestration site.Type: GrantFiled: December 22, 2020Date of Patent: November 2, 2021Assignee: NEXT CARBON SOLUTIONS, LLCInventors: Ivan Van der Walt, Ben Heichelbech, Alex Thompson, Vikrum Subra, Victor Fernandes, Michael Abegg
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Patent number: 9993766Abstract: A carbon dioxide capture apparatus according to an embodiment includes an absorber and a stripper. The liquid level of the absorbing liquid within the absorber is measured by an absorber level gauge. A regulating liquid that contains water and is used to control the proportion of water contained in the absorbing liquid is stored in a regulating liquid tank. The flow rate of the regulating liquid to be supplied from the regulating liquid tank to the absorber or the stripper is controlled by a regulating liquid control valve. A controller controls the opening degree of the regulating liquid control valve based on the liquid level of the absorbing liquid measured by the absorber level gauge.Type: GrantFiled: July 13, 2015Date of Patent: June 12, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Noriko Chiba, Masatoshi Hodotsuka, Norihide Egami
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Patent number: 9393515Abstract: In a method for purifying a flow rich in carbon dioxide and containing at least one impurity lighter than carbon dioxide, the flow is cooled in a heat exchanger (7) and partially condensed, the partially condensed flow is sent to a first phase separator (9) operating under a first pressure, a gas from the first phase separator is compressed and sent to a second phase separator (31) operating under a second pressure higher than the first pressure, a first liquid (11) is sent from the first phase separator to a housing (15) operating under a pressure lower than the first pressure, and a second liquid (33) is sent to the housing.Type: GrantFiled: November 14, 2011Date of Patent: July 19, 2016Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Alain Briglia, Philippe Court, Arthur Darde, Ludovic Granados, Jean-Pierre Tranier, Xavier Traversac
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Patent number: 9352273Abstract: There is provided a dehydration-compression system 10 in which CO2 loss is suppressed, and a CO2 recovery system including the dehydration-compression system. The dehydration-compression system 10 of the present invention includes multiple compressors 50 and a dehydration device 60. The dehydration device 60 includes: a contactor 62 which removes H2O contained in CO2 by absorbing the H2O into an dehydration solvent; a recovery part 74 which recovers the CO2 from the dehydration solvent discharged from the contactor 62; and a first circulating passage L31 which carries the CO2 released from the recovery part 74 to the upstream side of the contactor 62.Type: GrantFiled: February 25, 2014Date of Patent: May 31, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masayuki Inui, Takahito Yonekawa, Cole Maas, Tatsuya Tsujiuchi
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Patent number: 9181361Abstract: Provided are systems and methods for separating a purge gas recovered from a polyethylene product. The method includes recovering a polyethylene product containing one or more volatile hydrocarbons from a polymerization reactor and contacting the polyethylene product with a purge gas to remove at least a portion of the volatile hydrocarbons to produce a polymer product having a reduced concentration of volatile hydrocarbons and a purge gas product enriched in volatile hydrocarbons. The purge gas product is compressed to a pressure of 2,500 kPaa to 10,000 kPaa, and is then cooled and separated into at least a first product, a second product, and a third product. A portion of one or more of the first, second, or third products is then recycled as a purge gas, to the polymerization reactor, or to the purge gas product enriched in volatile hydrocarbons prior to compression, respectively.Type: GrantFiled: December 13, 2011Date of Patent: November 10, 2015Assignee: Univation Technologies, LLCInventors: Mark W. Blood, Randall L. Force, Theodore D. Duncan, George W. Schwarz, Jr., Daniel W. Mosser, Donald A. Fischer, Robert D. Olson, James Leland Swecker, II, Cloid Russell Smith, III
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Patent number: 8961663Abstract: An apparatus that separates and recovers CO2 from a CO2 absorbent that has absorbed CO2 includes a regeneration tower configured to apply heat to the CO2 absorbent that has absorbed CO2, configured to separate and remove CO2 from the CO2 absorbent, configured to exhaust CO2 gas, and configured to regenerate the CO2 absorbent, a plurality of compressors configured to compress the CO2 gas exhausted from the regeneration tower, a dehydration device provided between the plurality of compressors and configured to remove moisture from the compressed CO2, and a line configured to supply air or N2 gas into the dehydration device to preliminarily operate the dehydration device until a stable state is achieved before starting the compressor.Type: GrantFiled: September 6, 2012Date of Patent: February 24, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Taku Asano, Tatsuya Tsujiuchi, Richard Reinke
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Publication number: 20140366723Abstract: A device for separating liquid from gas in a well flow when compressing the well flow comprises a liquid separator (1?) having an inlet (13) for the well flow, an outlet (5) for gas and an outlet (4) for liquid. According to the invention separated liquid from the liquid separator (1?) is fine-divided in connection with the liquid outlet (4), and the fine-divided liquid is supplied into the gas outlet (5) at a mixing point (8) downstream the liquid separator (1?) and upstream a compressor (11).Type: ApplicationFiled: June 24, 2014Publication date: December 18, 2014Inventors: Kjeli Olav Stinessen, Geir Inge Olsen
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Patent number: 8858680Abstract: The present invention is directed to a method and a system for separating oxygen from air. A compressible air stream that contains oxygen is mixed in a substantially co-current flow with an incompressible fluid stream comprising an incompressible fluid in which oxygen is capable of being preferentially absorbed. Rotational velocity is imparted to the mixed streams, separating an incompressible fluid in which at least a portion of the oxygen is absorbed from other compressible components of the air stream. The compressible air stream may be provided at a stream velocity having a Mach number of at least 0.1.Type: GrantFiled: May 31, 2011Date of Patent: October 14, 2014Assignee: Shell Oil CompanyInventors: Frederik Arnold Buhrman, Jingyu Cui, Mahendra Ladharam Joshi, Stanley Nemec Milam, Scott Lee Wellington
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Patent number: 8852318Abstract: 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: GrantFiled: December 21, 2010Date of Patent: October 7, 2014Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'exploitation des Procedes Georges ClaudeInventors: Alain Briglia, Arthur Darde
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Patent number: 8790452Abstract: A system adapted to separate a natural gas feed stream into a sweetened gas stream, at least one liquid waste stream and at least one gaseous waste stream, and to discharge, recover or destroy the at least one liquid waste stream and the at least one gaseous waste stream.Type: GrantFiled: February 21, 2013Date of Patent: July 29, 2014Inventor: Richard Paul Posa
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Patent number: 8747520Abstract: The present invention are methods for removing preselected substances from a mixed flue gas stream characterized by cooling said mixed flue gas by direct contact with a quench liquid to condense at least one preselected substance and form a cooled flue gas without substantial ice formation on a heat exchanger. After cooling additional process methods utilizing a cryogenic approach and physical concentration and separation or pressurization and sorbent capture may be utilized to selectively remove these materials from the mixed flue gas resulting in a clean flue gas.Type: GrantFiled: May 3, 2011Date of Patent: June 10, 2014Assignee: Battelle Memorial InstituteInventors: Mark D. Bearden, Paul H. Humble
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Patent number: 8728200Abstract: A system for recycling a work gas used in a thermal reactor for treating sample materials includes a thermal reactor using a work gas from a first source mixed with carrier gases. The work gas has a boiling point higher than the carrier gases. The system includes a pump, a condenser which converts the work gas into a liquid, and a scrubber.Type: GrantFiled: January 4, 2012Date of Patent: May 20, 2014Assignee: Stion CorporationInventor: Robert D. Weiting
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Patent number: 8641802Abstract: From the CO2-containing stream of process gas obtained in a process for the treatment of a CO2-containing stream of process gas, which is obtained in the production of pure synthesis gas from raw gas in the partial oxidation of heavy oils, petroleum coke or wastes, or in the gasification of coal, or when processing natural gas or accompanying natural gas, CO2 is removed physisorptively or chemisorptively, and the solvent loaded with CO2 is expanded to a lower pressure for the desorption of CO2. In order to generate CO2 as pure as possible, the contaminated CO2 is condensed to at least 60 bar[a] or below its critical temperature to at least 70 bar[a], and the impurities contained in the liquid CO2 are removed by stripping with gaseous CO2 guided in counterflow.Type: GrantFiled: September 5, 2008Date of Patent: February 4, 2014Assignee: LURGI GmbHInventors: Ulrich Koss, Manfred Meyer, Alexander Schriefl
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Patent number: 8597404Abstract: The present invention is directed to low emission power plant. A compressible feed stream is provided that is derived from a power production unit, where the compressible feed stream contains at least one target compressible component and at least one non-target compressible component, is mixed in a substantially co-current flow with an incompressible fluid stream comprising an incompressible fluid in which the target component(s) is/are capable of being preferentially absorbed. Rotational velocity is imparted to the mixed streams, separating an incompressible fluid in which at least a portion of the target component is absorbed from a compressible product stream containing the non-target compressible component(s). The compressible feed stream may be provided at a stream velocity having a Mach number of at least 0.1.Type: GrantFiled: May 31, 2011Date of Patent: December 3, 2013Assignee: Shell Oil CompanyInventors: Frederik Arnold Buhrman, Jingyu Cui, Mahendra Ladharam Joshi, Stanley Nemec Milam, Scott-Lee Wellington
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Publication number: 20130315818Abstract: A gas compressor comprises a source of high pressure fluid and a pressure vessel having a gas inlet for the gas to be compressed, a gas outlet for the compressed gas and a fluid inlet for the high pressure fluid. The compressor is arranged to introduce the high pressure fluid into the pressure vessel via the fluid inlet whereby to compress a volume of gas in the pressure vessel.Type: ApplicationFiled: February 7, 2012Publication date: November 28, 2013Inventor: Amitava Roy
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Patent number: 8585902Abstract: The present invention provides a process and an apparatus for transferring a solute from a first fluid to a second fluid immiscible in each other.Type: GrantFiled: June 19, 2008Date of Patent: November 19, 2013Assignee: Nagarjuna Energy Private LimitedInventors: Manoj Kumar Sarkar, Banibrata Pandey, Venkata Sunil Jagani, Venkata Prasad Kutikuppala
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Publication number: 20130213224Abstract: Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.Type: ApplicationFiled: March 19, 2013Publication date: August 22, 2013Applicant: ALSTOM TECHNOLOGY LTDInventor: Alstom Technology Ltd
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Patent number: 8475566Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas stream. The method is a two-step method in which carbon dioxide is compressed in the first step, while the residual carbon dioxide is recovered by an absorption process in a subsequent step. The present invention also relates to the use of the method for the recovery of carbon dioxide and a plant for recovery of carbon dioxide.Type: GrantFiled: June 6, 2005Date of Patent: July 2, 2013Assignee: Union Engineering A/SInventor: Rasmus Find
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Publication number: 20130125747Abstract: Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.Type: ApplicationFiled: November 17, 2011Publication date: May 23, 2013Applicant: ALSTOM TECHNOLOGY LTDInventors: Sanjay Kumar Dube, Daniel Nicolaus Secundus Mattstedt, Joseph P. Naumovitz
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Publication number: 20130055891Abstract: The invention relates to a method for treating a gas stream comprising combustion fumes containing CO2 in an initial proportion, water vapor, one or more volatile acid compounds, and one or more additional impurities selected from among oxygen, nitrogen and argon, comprising the steps of: i) compressing the gas stream to a final pressure of 1 bar to 74 bar absolute; ii) cooling the gas stream to a temperature of around ?10° C. to around ?130° C. and eliminating at least one additional impurity; and iii) recovering a CO2-enriched gas stream containing a final proportion of CO2 greater than the initial proportion of CO2 in the stream to be treated. In addition, the method comprises, prior to step i), a step of pre-drying the stream for removing therefrom at least a portion of the water vapor which it contains.Type: ApplicationFiled: February 25, 2011Publication date: March 7, 2013Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Explitation Des Procedes GeorgesInventors: Bruno Alban, Philippe Arpentinier, Alain Briglia, Serge Moreau, Fabrice Del Corso, Benoit Davidian
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Publication number: 20130011321Abstract: An exhaust gas treatment apparatus comprises an ammonia absorption system and an ammonia conversion system. The ammonia absorption receives ammonia-containing tail gas generated by a semiconductor process, and removes dust from the tail gas, absorbs and decomposes ammonia gas from the tail gas, converts the ammonia gas into aqueous ammonia, and emits the tail gas without the dust and the ammonia to an external environment. The ammonia conversion system receives the ammonia solution from the ammonia absorption system, and converts it into gaseous ammonia, and then converts the gaseous ammonia to produce liquid ammonia by vaporization and cooling-pressurized liquefaction. After that, the liquid ammonia is purified by a purification system to formed hi-purity liquid ammonia.Type: ApplicationFiled: July 6, 2012Publication date: January 10, 2013Inventors: HSUEH YUAN LEE, Ding Chung LIOU
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Publication number: 20120137877Abstract: Disclosed is a gaseous fossil fuel fired, indirectly heated, Brayton closed cycle comprising an alkali metal seeded noble gases that is rendered non-equilibrium, electrically conducting in a magnetohydrodynamic (MHD) electric power generator with zero emissions from the combustion products, including physical separation and sequestration of the carbon dioxide (CO2) what is emitted from the fossil fuel, with said cycle combined with a Rankine steam turbine bottoming cycle to compress the noble gas, while another optional new or existing Rankine steam cycle is placed in parallel and separate from the MHD cycle, and it is fired by the solid char remaining if the MHD cycle is fired with the devolatilized coal, and/or with solid coal culm, and/or unburned carbon in coal power plant waste ash, in order to achieve high efficiency at low capital, low operating, and low fuel costs.Type: ApplicationFiled: November 22, 2011Publication date: June 7, 2012Inventor: Bert ZAUDERER
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Patent number: 8182576Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe and optimal operation of the system.Type: GrantFiled: August 22, 2011Date of Patent: May 22, 2012Assignee: A&B Process Systems CorporationInventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
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Publication number: 20120096861Abstract: According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that generates steam and an exhaust gas, an absorption tower that allows carbon dioxide contained in the exhaust gas to be absorbed in an absorption liquid, a regeneration tower that regenerates discharges a carbon dioxide gas from the absorption liquid, a reboiler that heats the absorption liquid of the regeneration tower, a turbine that is rotationally driven by the steam, a condenser that generates condensate by cooling steam exhausted from the turbine, a compressor that compresses the carbon dioxide gas, and a cooler that cools the carbon dioxide gas, which has been compressed by the compressor, while using a part of the condensate as cooling water. The reboiler is supplied with steam from the turbine and steam generated by the cooling of the carbon dioxide gas at the cooler.Type: ApplicationFiled: October 20, 2011Publication date: April 26, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Takeshi SASANUMA, Nobuo Okita, Takeo Takahashi, Mikio Takayanagi, Takeo Suga, Yuya Murakami, Toshihisa Kiyokuni, Hideo Kitamura
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Publication number: 20120090464Abstract: The process consists of a combination of a low temperature CO2 condensation separation step followed by either a physical or chemical solvent scrubbing process. The first step results in the partial pressure of CO2 in the gaseous steam being reduced to a value near the triple point pressure of CO2. Typically, the partial pressure of CO2 is reduced to the range 5.5 bar to 7.0 bar. The second stage process then removes the remaining CO2.Type: ApplicationFiled: October 12, 2011Publication date: April 19, 2012Inventor: Rodney J. Allam
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Publication number: 20120090463Abstract: A process and an apparatus for the treatment of a carbon dioxide-containing flue gas stream are described, at least part of the carbon dioxide present being removed from the flue gas stream in a separating device having in particular an absorption column 7 with the formation of a gas stream having a low carbon dioxide content and a carbon dioxide-rich gas stream. For overcoming the pressure drop caused by the carbon dioxide removal in the absorption column 7, it is proposed that the gas stream having a low carbon dioxide content and formed after the removal of the carbon dioxide from the flue gas stream is subjected to a gas stream compression, for example by means of a flue gas blower 14.Type: ApplicationFiled: April 8, 2010Publication date: April 19, 2012Applicant: Linde-Kca-Dresden GmbHInventors: Torsten Stoffregen, Veselin Stamatov, Thomas Walter
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Publication number: 20120067059Abstract: A process for removing carbon dioxide from a fluid comprises the steps of: (a) treating the fluid by bringing it into countercurrent contact with a liquid absorbent in a first absorption zone and thereafter in a second absorption zone to absorb at least part of the carbon dioxide contained in the fluid into the absorbent; (b) depressurizing the loaded absorbent to release a first stream of carbon dioxide and yield a partially regenerated absorbent; (c) recycling a first stream of the partially regenerated absorbent into the first absorption zone; (d) heating a second stream of the partially regenerated absorbent to release a second stream of carbon dioxide and yield a regenerated absorbent; (e) recycling the regenerated absorbent into the second absorption zone; (f) condensing water vapour entrained in the second stream of carbon dioxide by cooling the second stream of carbon dioxide and transferring at least part of the heat recovered to the partially regenerated absorbent by indirect heat exchange.Type: ApplicationFiled: May 25, 2010Publication date: March 22, 2012Applicants: JGC Corporation, BASF SEInventors: Torsten Katz, Georg Sieder, Koji Tanaka
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Publication number: 20120000357Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe an optimal operation of the system.Type: ApplicationFiled: August 22, 2011Publication date: January 5, 2012Inventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
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Method for removing hydrocarbons from a vapour-gas mixture and a device for carrying out said method
Patent number: 8034159Abstract: A method for cleaning hydrocarbons from a gas-vapor medium ejected to the atmosphere, formed while storing oil or gasoline or filling a container therewith is provided. The medium is pumped out and compressed in a gas-liquid jet apparatus due to energy of oil or gasoline supplied by a pump. The formed mixture is separated in a separator, where a pressure of 0.7 to 2.5 MPa is maintained, and gas from the separator is compressed in a jet apparatus by oil or gasoline supplied by a pump. The gas medium cleaned from the hydrocarbons is outputted and the saturated absorbent is directed to a desorber where a pressure is generated to be lower than the pressure in the separator. The liquid medium is removed from the separators and to a container or to a storage tank from which oil or gasoline is simultaneously supplied to pump inlets or to the separators.Type: GrantFiled: July 24, 2006Date of Patent: October 11, 2011Inventor: Valery Grigorievich Tsegelsky -
Patent number: 8007567Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe and optimal operation of the system.Type: GrantFiled: August 13, 2008Date of Patent: August 30, 2011Assignee: A & B Process Systems CorporationInventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
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Publication number: 20110203314Abstract: Acid gas is removed from a feed gas using a physical solvent that is regenerated using successive flashing stages after heating of the rich solvent using low-level waste heat that is preferably produced or available within the acid gas removal plant. Especially preferred waste heat sources include compressor discharges of the refrigeration system and/or recompression system for CO2, and/or (low level) heat content from the feed gas.Type: ApplicationFiled: September 30, 2009Publication date: August 25, 2011Applicant: Fluor Technologies CorporationInventor: John Mak
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Publication number: 20110052453Abstract: A method and apparatus for removing carbon dioxide and other pollutants from a gas stream having components that work synergistically. The invention includes an ammonia based scrubbing solution for SO2 scrubbing; an SO2 absorption section (250) to create contact between the flue gas and the ammonia based scrubbing solution to remove SO2 from the flue gas; a wet electrostatic precipitator to remove aerosols and fine particulate matter from the flue gas; a regenerable carbonate scrubbing solution for CO2 scrubbing, a CO2 absorption section (252) for removal of CO2 adapted to create contact between the flue gas and the scrubbing solution and which operates at a temperature between 32 and 66 degrees C.Type: ApplicationFiled: October 31, 2008Publication date: March 3, 2011Inventors: Christopher McLarnon, Joanna Duncan, Francis Alix, Aytac Sezgi, Wade Amos, Roberto Bosco, Brian Grandjean, Michelle Livingston
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Publication number: 20110005389Abstract: The present invention relates to a process and plant for the recovery of carbon dioxide from a gas stream by means of pressure swing adsorption using an adsorbent, such as X or Y type Zeolite adsorbents. The gas feed stream suitably has a moderate concentration of carbon dioxide, such as gas emitted from the filling bowl of the carbonated drinks bottling plant and is recovered without rinsing or purging the adsorbent with a high purity carbon dioxide gas stream. The process therefore provides the advantage of being capturing carbon dioxide from the effluent that would otherwise be emitted to the atmosphere and captures the carbon dioxide in a manner that minimises operational and capital expenditure. The present invention also relates to a process for utilizing one dry stream from a gas separation unit (adsorption or membrane process) to conduct evaporative cooling of water, which is used as the water in a liquid ring vacuum pump thereby decreasing the vacuum level and improving the performance.Type: ApplicationFiled: December 12, 2008Publication date: January 13, 2011Inventors: Paul Anthony Webley, Jun Zhang
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Publication number: 20110000366Abstract: From the CO2-containing stream of process gas obtained in a process for the treatment of a CO2-containing stream of process gas, which is obtained in the production of pure synthesis gas from raw gas in the partial oxidation of heavy oils, petroleum coke or wastes, or in the gasification of coal, or when processing natural gas or accompanying natural gas, CO2 is removed physisorptively or chemisorptively, and the solvent loaded with CO2 is expanded to a lower pressure for the desorption of CO2. In order to generate CO2 as pure as possible, the contaminated CO2 is condensed to at least 60 bar[a] or below its critical temperature to at least 70 bar[a], and the impurities contained in the liquid CO2 are removed by stripping with gaseous CO2 guided in counterflow.Type: ApplicationFiled: September 5, 2008Publication date: January 6, 2011Applicant: LURGI GMBHInventors: Ulrich Koss, Manfred Meyer, Alexander Schriefl
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Publication number: 20100263529Abstract: A method for the purification of a feed gas stream containing at least CO2 and at least one impurity with by the incorporation of a purification step, enabling water to be at least partially removed is provided.Type: ApplicationFiled: July 8, 2008Publication date: October 21, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Bruno Alban, Christophe Claeys, Philippe Court, Arthur Darde, Guillaume De Smedt, Bao Ha, Vladimir Hasanov, Simon Jallais, Christian Monereau, Serge Moreau, Elise Renou, Ivan Sanchez-Molinero, Jean-Pierre Tranier
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Publication number: 20100218674Abstract: A CO2 recovery apparatus according to a first embodiment of the present invention includes: a CO2 absorber that brings flue gas containing CO2 into contact with CO2 absorbing liquid to reduce CO2 in the flue gas; a regenerator that reduces CO2 in CO2 absorbing liquid (rich solvent) that has absorbed the CO2 in the CO2 absorber to regenerate the CO2 absorbing liquid, so that the regenerated absorbing liquid (lean solvent), having CO2 reduced in the regenerator, is reused in the CO2 absorber; a first compressor to a fourth compressor that compress the CO2 gas released from the regenerator; and an O2 reducing apparatus arranged between the second compressor and a second cooler to reduce O2 in the CO2 gas.Type: ApplicationFiled: October 27, 2009Publication date: September 2, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keiji Fujikawa, Takuya Hirata, Tatsuya Tsujiuchi, Tsuyoshi Oishi
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Publication number: 20100139484Abstract: A process for producing a pressurised CO2 stream in a power plant integrated with a CO2 capture unit, wherein the power plant comprises at least one gas turbine (1) coupled to a heat recovery steam generator unit (2) and the CO2 capture unit comprises an absorber (18) and a regenerator (21), the process comprising the steps of: (a) introducing hot exhaust gas exiting a gas turbine into a heat recovery steam generator unit to produce a first amount of steam and a flue gas stream (17) comprising CO2; (b) removing CO2 from the flue gas stream comprising CO2 by contacting the flue gas stream with absorbing liquid in an absorber (18) to obtain absorbing liquid enriched in CO2 (20) and a purified flue gas stream; (c) contacting the absorbing liquid enriched in CO2 with a stripping gas at elevated temperature in a regenerator (21) to obtain regenerated absorbing liquid and a gas stream enriched in CO2 (23); (d) pressurising the gas stream enriched in CO2 using a CO2 compressor (24) to obtain the pressurised CO2 streType: ApplicationFiled: January 23, 2008Publication date: June 10, 2010Applicant: SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ B.V.Inventors: Kuei-Jung Li, Georgios Protopapas
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Publication number: 20100064725Abstract: In a method of treating a hydrocarbon stream, such as a natural gas stream, a partly condensed feed stream (10) is supplied to a first gas/liquid separator (2), where it is separated into a gaseous stream (20) and a liquid stream (30). The liquid stream (30) is expanded and fed (40) into a second gas/liquid separator (3), and the gaseous stream (20) is split into at least two sub-streams (50, 70). A first sub-stream (50) of the at least two sub-streams is expanded, thereby obtaining an at least partially condensed first sub-stream (60), and subsequently fed (60) into the second gas/liquid separator (3). A second sub-stream (70) of the at least two sub-streams is cooled against a cold stream (120), thereby obtaining an at least partially condensed second sub-stream (90, 90a), which is fed (90, 90a) into the second gas/liquid separator (3) from which a gaseous stream (130) and a liquid stream (100, 100a) are removed.Type: ApplicationFiled: October 23, 2007Publication date: March 18, 2010Inventors: Jill Hui Chiun Chieng, Akash Damodar Wani
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Publication number: 20100037772Abstract: The present invention is a biogas processing system having a compressor having a biogas input and output, a pump having a water input and output, a scrubber tower having a mixing chamber connected to a biogas input, a water pump input, a water output, and a processed biogas output, and a filtration member connected to the water output to remove contaminants from the water exiting the first scrubber tower. The system also includes devices for heating and cooling the recycled flow of water to enhance the ability of the water to absorb contaminants from the biogas and the ability of a stripper to remove absorbed contaminants from the water in a closed loop water system, and a controller for closely controlling the operating parameters of the system to achieve safe an optimal operation of the system.Type: ApplicationFiled: August 13, 2008Publication date: February 18, 2010Inventors: Kevin L. Roe, David J. Mandli, Amanda M. Neuhalfen
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Publication number: 20090223366Abstract: A method of separating/purifying a gas mixture (M), includes a step consisting in capturing at least one gas which can generate anionic species by dissolution in aqueous phase. The invention is characterised in that it also includes the following steps consisting in: suspending an absorbent product in the aforementioned aqueous phase, the absorbent product consisting of a lamellar double hydroxide or a mixed oxide which is believed to be amorphous and which originates from the moderate heat treatment of lamellar double hydroxides having an affinity for the above-mentioned gas; distributing the gas mixture (M) in the aqueous phase; and recovering the adsorbate from the absorbent product in suspension.Type: ApplicationFiled: November 17, 2006Publication date: September 10, 2009Applicant: BUREAU DE RECHERCHES GEOLOGIQUES ET MINIERES (B.R.G.M.)Inventors: Alain Seron, Fabian Delorme
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Publication number: 20090101007Abstract: The present invention relates to a method for recovery of carbon dioxide from a gas stream. The method is a two-step method in which carbon dioxide is compressed in the first step, while the residual carbon dioxide is recovered by an absorption process in a subsequent step. The present invention also relates to the use of the method for the recovery of carbon dioxide and a plant for recovery of carbon dioxide.Type: ApplicationFiled: June 6, 2005Publication date: April 23, 2009Inventor: Rasmus Find
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Publication number: 20090013868Abstract: A process for separating carbon dioxide from a compressed, dried and cooled carbon dioxide containing fluid comprises separating the fluid into at least a carbon dioxide enriched stream, and a carbon dioxide depleted stream, expanding at least part of the carbon dioxide lean stream in an expander, compressing a process stream wherein the power for the compression step is at least in part provided by the power generated by the expander.Type: ApplicationFiled: July 11, 2007Publication date: January 15, 2009Inventors: Arthur Darde, Bao Ha, Jean-Pierre Tranier
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Publication number: 20090013869Abstract: The process and the device are used to produce a pressurized gaseous product by low-temperature separation of air in a distillation system, which has at least one high-pressure column (7) and one low-pressure column (8). A process air stream is compressed in a main air compressor. At least a part of the compressed process air stream (1) is introduced (6) into the high-pressure column (7). A first air stream (10, 13, 14, 17, 18), which is formed at least by a part of the process air stream (1), is compressed to a high air pressure (11, 15), which is at least 1 bar above the operating pressure of the high-pressure column (7). A liquid product stream (21, 47) is removed from the distillation system, brought (48, 51) to an elevated pressure in the liquid state, and evaporated or pseudo-evaporated with the first air stream (17) under this elevated pressure by indirect heat exchange (4), and finally drawn off as a gaseous product stream (50, 53).Type: ApplicationFiled: July 7, 2008Publication date: January 15, 2009Inventors: Dietrich Rottmann, Christian Kunz
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Publication number: 20080302240Abstract: Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide. Natural gas liquids may be first separated and removed before fractionation. After fractionation, the waste stream is pressurized and transmitted to a remote injection well for injection either for disposal of the waste stream and preferably to urge hydrocarbons toward the producing well. A hydrocarbon stream proceeds from fractionation to a methanol absorber system which removes carbon dioxide gas. The hydrocarbon stream is thereafter separated into at least hydrocarbon gas, nitrogen and helium. Some of the nitrogen is reintroduced into a fractionation tower to enhance the recovery of hydrocarbons. A methanol recovery system is provided to recover and reuse the methanol. The hydrocarbons are sold as natural gas and the helium is recovered and sold. Excess nitrogen is vented.Type: ApplicationFiled: August 22, 2008Publication date: December 11, 2008Inventor: Donald Leo Stinson
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Method for Removing Hydrocarbons From a Vapour-Gas Mixture and a Device for Carrying Out Said Method
Publication number: 20080282881Abstract: A method for cleaning hydrocarbons from a gas-vapor medium ejected to the atmosphere, formed while storing oil or gasoline or filling a container therewith is provided. The medium is pumped out and compressed in a gas-liquid jet apparatus due to energy of oil or gasoline supplied by a pump. The formed mixture is separated in a separator, where a pressure of 0.7 to 2.5 MPa is maintained, and gas from the separator is compressed in a jet apparatus by oil or gasoline supplied by a pump. The gas medium cleaned from the hydrocarbons is outputted and the saturated absorbent is directed to a desorber where a pressure is generated to be lower than the pressure in the separator. The liquid medium is removed from the separators and to a container or to a storage tank from which oil or gasoline is simultaneously supplied to pump inlets or to the separators.Type: ApplicationFiled: July 24, 2006Publication date: November 20, 2008Inventor: Valery Grigorievich Tsegelsky -
Publication number: 20080168797Abstract: A gas condensate production plant comprises a plurality of separation units in which C2 and/or C3 lighter components are stripped from the separator feeds using compressed heated stripping vapor produced from the feed in respective downstream separation units. Contemplated plants substantially reduce heating and cooling duties by using the waste heat from the compressor discharges in the separation process. Furthermore, the multi-stage fractionation according to the inventive subject matter provides improved gas condensate recovery at reduced energy costs.Type: ApplicationFiled: June 22, 2005Publication date: July 17, 2008Applicant: FLUOR TECHNOLOGIES CORPORATIONInventor: John Mak
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Patent number: 7377956Abstract: Method and system for processing natural gas containing contaminants through the use of one or more rotary screw compressors. A natural gas containing a contaminant (e.g., water or carbon dioxide and/or hydrogen sulfide) and a contaminant removing agent are combined and processed within a rotary screw compressor. The contaminant removing agent may be a dehydrating agent such as a glycol or a carbon dioxide and/or hydrogen sulfide removing agent such an amine. The method and system of the present invention also may employ a series of rotary screw compressors to process natural gas containing a plurality of contaminants.Type: GrantFiled: July 15, 2005Date of Patent: May 27, 2008Assignee: RDC Research LLCInventors: Richard P. Cheney, Jr., Brad Salzman
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Publication number: 20080034965Abstract: A combined compressor and dehydrator apparatus including a gas compressor unit with an exhaust through which exhaust gas is expelled from said gas compressor unit; a glycol dehydrator unit with a glycol reboiler; a means of transferring heat from said exhaust of said gas compressor unit to said glycol reboiler of said glycol dehydrator unit; and a skid; wherein said gas compressor unit, said glycol dehydrator unit and said means of transferring heat are fixedly attached to said skid.Type: ApplicationFiled: November 22, 2006Publication date: February 14, 2008Applicant: Leader Energy Services Ltd.Inventors: Swen Theil, Rick Bower
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Patent number: 7029589Abstract: A method or process of treating a contaminated fluid (10) having at least one contaminant having a property selected from the group consisting of being volatile, hazardous, tacky and a combination thereof is provided. The method comprises contacting the contaminated fluid with an effective amount of an agent (12) selected from oxidizing agents, free radical producing agents and a combination thereof for an effective amount of time to convert a substantial amount of the at least one contaminant to at least one corresponding modified contaminant having a property selected from the group consisting of being non-volatile, less volatile than the converted contaminant non-hazardous, less hazardous than the converted contaminant, non-tacky and a combination thereof; and generating a treated fluid (14) having a level of the at least one contaminant and of the at least one corresponding modified contaminant to allow the treated fluid to at least meet requirements for release, reuse or further treatment.Type: GrantFiled: April 4, 2001Date of Patent: April 18, 2006Inventor: Michael P. McGinness