Utilizing Carbonate As Reactant Patents (Class 423/232)
  • Patent number: 10123495
    Abstract: A system and method for creating a useful carbon-enriched media in a reactor which will assimilate carbon into an algae biomass, requires measuring a respective carbon concentration of the media, C(measured), as it enters, and as it leaves the reactor. Operationally, desired carbon concentration values are preset, C(set), and are provided along with values obtained for C(measured) as input to a system controller. Respective differentials between C(measured) and C(set) at the reactor's input and output ports are determined by the controller and are used to control a volumetric fluid flow rate of the media through the reactor. Specifically, the controller establishes a volumetric fluid flow rate of the media as it is passed through an absorber where the media is carbon-enriched by interaction with combustion gases from an external source (e.g. a power plant).
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: November 13, 2018
    Assignee: GENERAL ATOMICS
    Inventors: David W. Ordway, David A. Hazlebeck
  • Patent number: 9833746
    Abstract: Provided is a facilitated CO2 transport membrane having improved CO2 permeance and improved CO2 selective permeability. The facilitated CO2 transport membrane includes a separation-functional membrane comprising a hydrophilic polymer gel membrane which contains a CO2 carrier and a CO2 hydration catalyst, wherein the hydrophilic polymer is a copolymer including a first structural unit derived from an acrylic acid cesium salt or an acrylic acid rubidium salt and a second structural unit derived from vinyl alcohol. More preferably, the CO2 hydration catalyst has catalytic activity at a temperature of 100° C. or higher.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 5, 2017
    Assignees: Renaissance Energy Research Corporation, Sumitomo Chemical Company, Limited
    Inventors: Osamu Okada, Nobuaki Hanai, Peng Yan, Junya Miyata, Takehiro Nakasuji, Hayato Sugiyama
  • Patent number: 8936773
    Abstract: Provided herein are compositions, methods, and systems for a material containing metastable carbonate and stabilizer. Methods for making the compositions and using the compositions are also provided.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 20, 2015
    Assignee: Calera Corporation
    Inventors: Miguel Fernandez, Irvin Chen, Patricia Tung Lee, Matthew Ginder-Vogel
  • Patent number: 8926927
    Abstract: A process for the removal of co2 from a gas comprising the steps of: (a) contacting the gas (1) in an absorber (2) with an aqueous solution of one or more carbonate compounds in the presence of an accelerator, thereby reacting at least part of the co2 to form a bicarbonate compound, under conditions such that at least a part of the bicarbonate compound formed precipitates, forming a bicarbonate slurry; (b) subjecting at least part of the bicarbonate slurry to a concentration step (5) to obtain an aqueous solution (6) and a concentrated bicarbonate slurry (7), wherein the concentrated bicarbonate slurry comprises from 20 to 80 wt % of bicarbonate compounds; (c) returning at least part of the aqueous solution to the absorber; (d) pressurising (8) the concentrated bicarbonate slurry, (e) transferring the pressurized concentrated bicarbonate slurry to a regenerator (12) and applying heat to obtain a co2-rich gas stream (13) and a regenerated carbonate stream (14).
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: January 6, 2015
    Assignee: Shell Oil Company
    Inventor: Jiri Peter Thomas Van Straelen
  • Publication number: 20140374105
    Abstract: Process for the removal of CO2 from a gas comprising CO2, comprising the steps of: (a) contacting the gas in an absorber (102) with an aqueous solution of one or more carbonate compounds in the presence of an accelerator, thereby reacting at least part of the CO2 to form a bicarbonate compound, under conditions such that at least a part of the bicarbonate compound formed precipitates, forming a bicarbonate slurry; (b) subjecting at least part of the bicarbonate slurry to a concentration step (105) to obtain the aqueous solution and a concentrated bicarbonate slurry, wherein the concentrated bicarbonate slurry comprises in the range of from 10 to 60 wt % of bicarbonate compounds; (c) returning at least part of the aqueous solution to the absorber; (d) transferring a first part of the concentrated bicarbonate slurry to a first heat exchanger (110a), wherein the first part of the slurry is being heated against a hot lean solvent of a regenerator (112); (e) transferring a second part of the concentrated bicarbona
    Type: Application
    Filed: October 11, 2012
    Publication date: December 25, 2014
    Applicant: SHELL OIL COMPANY
    Inventor: Jiri Peter Thomas Van Straelen
  • Patent number: 8864876
    Abstract: The invention generally relates to a method for sequestration contaminates. More particularly, the invention relates to a significant performance enhancement over existing mineral carbonation processes through the use of a high mass transfer system and an efficient pH swing reaction. More particularly, aspects of the invention are directed to direct and indirect methods of sequestering contaminates.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: October 21, 2014
    Assignee: Neumann Systems Group, Inc.
    Inventors: David Kurt Neumann, Boris R. Nizamov, Thomas Lee Henshaw, Jeremy L. Anderson
  • Patent number: 8857118
    Abstract: Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydraulic cements, as well as settable compositions, such as concretes and mortars, prepared therefrom. The cements and compositions produced therefrom find use in a variety of applications, including use in a variety of building materials and building applications.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 14, 2014
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Cecily Ryan, Laurence Clodic
  • Patent number: 8815191
    Abstract: A process for manufacturing a catalyst composition includes the steps of (i) combining one or more soluble metal compounds with a solution of an alkaline metal carbonate precipitant to form a precipitate of insoluble metal carbonates, (ii) processing the insoluble metal carbonates into a catalyst or catalyst precursor with the evolution of carbon dioxide, (iii) recovering at least a portion of the evolved carbon dioxide, and (iv) reacting the recovered carbon dioxide with a suitable alkaline metal compound in an absorber column to generate an alkaline metal carbonate, wherein at least a portion of the generated alkaline metal carbonate is used as a precipitant in step (i).
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: August 26, 2014
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Graeme Douglas Campbell, James Beaumond Hunter
  • Patent number: 8703082
    Abstract: The present invention relates to a method for capturing CO2 from exhaust gas in an absorber (A1), wherein the CO2 containing gas is passed through an aqueous absorbent slurry wherein said aqueous absorbent slurry comprises an inorganic alkali carbonate, bicarbonate and at least one of an absorption promoter and a catalyst, and wherein the CO2 is converted to solids by precipitation in the absorber, said slurry having the precipitated solids is conveyed to a separating device (F1), in which the solids are separated off, essentially all of at least one of the absorption promoter and catalyst is recycled together with the remaining aqueous phase to the absorber.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: April 22, 2014
    Assignee: Sinvent AS
    Inventors: Hallvard F. Svendsen, Finn Andrew Tobiesen, Thor Mejdell, Karl Anders Hoff
  • Patent number: 8691175
    Abstract: Systems, methods, and compositions are provided related to utilizing gypsum for CO2 sequestration to form solid products containing calcium carbonate.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: April 8, 2014
    Assignee: Calera Corporation
    Inventors: Teavor Kendall, William Bourcier, Peng Lu, Geoffrey Garrison
  • Publication number: 20140093440
    Abstract: A method for the reduction of corrosion in a treatment unit acid used for separating hydrogen sulfide from and acid gas stream using an alkaline absorption solution. Ions comprising the S2? and/or HS? ions formed by the absorption of the hydrogen sulfide in the absorbent solution are subjected to in situ electrochemical oxidization to form polysulfide ions which form a protective coating on the surfaces of the unit.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Gordon Bryce McGARVEY, Robert J. FALKINER, David R. SLIM, Bryan M. KNICKERBOCKER
  • Patent number: 8657925
    Abstract: A method of scrubbing flue gas includes introducing flue gas comprising an acidic gas through an inlet into a tower; spraying an acid-absorptive fluid into the tower such that the acid-absorptive fluid contacts the flue gas; accumulating the acid-absorptive fluid in a recycle tank portion of the tower; and introducing an oxygen-containing gas into the acid-absorptive fluid in the recycle tank portion of the tower, wherein the oxygen-containing gas is introduced through at least one opening of an aerator, each of the at least one openings are positioned to release the oxygen-containing gas at least at a distance greater than or equal to a predetermined radial distance from the flue gas inlet, the predetermined radial distance being equal to at least 10% of a diameter of the recycle tank portion of the tower.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 25, 2014
    Assignee: ALSTOM Technology Ltd
    Inventor: Dennis James Laslo
  • Patent number: 8603424
    Abstract: CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2-sequestering formed building material.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 10, 2013
    Assignee: Calera Corporation
    Inventors: Brent R Constantz, Andrew Youngs, Terence C Holland
  • Patent number: 8574521
    Abstract: An apparatus and method for removing contaminants from a gas stream is provided which includes (a) introducing the gas stream into a reaction chamber of a scrubber; (b) oxidizing first contaminants in a liquid phase with a reactive species in a sump of the scrubber for providing an oxidizing solution; (c) oxidizing second contaminants in a gas phase of the gas stream above the sump with excess reactive species disengaging from the oxidizing solution in the sump; (d) oxidizing and scrubbing third contaminants in a gas-liquid contact assembly disposed above the gas stream.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: November 5, 2013
    Assignee: Linde Aktiengesellschaft
    Inventors: Naresh J. Suchak, Steven Finley
  • Publication number: 20130280152
    Abstract: The invention provides methods and apparatuses for removing carbon dioxide from a gas stream. In particular, the invention provides methods and apparatuses for absorbing carbon dioxide from a coal-fired boiler flue gas stream using an absorbing solution and for regeneration of an alkaline component used in the absorbing solution. In one embodiment, the invention provides a method for removing carbon dioxide from a gas stream by contacting a gas stream containing carbon dioxide with an alkaline liquid stream; absorbing at least a portion of the carbon dioxide into the alkaline liquid stream to produce absorbed carbon dioxide; and catalyzing a reaction of the absorbed carbon dioxide to a form of carbonate. In other embodiments, the invention provides a method for producing salable calcium carbonate, calcium chloride, and carbon dioxide gas.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventor: Uday Singh
  • Patent number: 8529854
    Abstract: The present invention relates to a new process for removal of carbon dioxide from a feed gas, wherein the feed gas is fed to and concentrated in a stripper column (A) before condensation of the gaseous carbon dioxide. The present invention also relates to different uses of the removed carbon dioxide and to a plant for removal of carbon dioxide from the feed gas.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: September 10, 2013
    Assignee: Union Engineering A/S
    Inventor: Rasmus Find
  • Patent number: 8512445
    Abstract: The present invention relates to systems and processes for reducing the amount of carbon dioxide in a carbon dioxide-containing gas. In particular, the carbon dioxide-containing gas is contacted with a carbonate-containing solution. At least a portion of carbon dioxide in the carbon dioxide-containing gas is absorbed in the carbonate-containing solution to produce a carbon dioxide-, carbonate-containing solution. A heat recovery mechanism is employed to recover heat from the carbon dioxide-, bicarbonate-, carbonate-containing solution exiting the chamber to maintain the temperature of the chamber within a range of from about 50° C. to about 90° C.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: August 20, 2013
    Inventors: Shiaoguo Chen, Zijiang Pan
  • Patent number: 8512660
    Abstract: The absorptive removal of carbon dioxide from biogas using a scrubbing liquid in which carbon dioxide is chemically bound proceeds by heating the loaded scrubbing liquid, occurring after the absorption, to a temperature at which liberation of CO2 begins. Immediately thereafter, the loaded scrubbing liquid is fed to at least one centrifugal separator for separating off the gas phase from the liquid phase, wherein methane and dissolved fractions of CO2 escape via the gas phase. After separation is complete, the gas phase is passed into the absorber unit and the liquid phase is further heated to the temperature required for desorption and fed to the desorption unit for regeneration.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 20, 2013
    Assignee: MT-Biomethan GmbH
    Inventors: Stephan Engelke, Uwe Jordan
  • Publication number: 20130164204
    Abstract: The present disclosure provides for a solvent composition for recovery of carbon dioxide from gaseous mixture, comprising diethanolamine, piperazine or its derivative, alkali salt, optionally along with cupric carbonate. The disclosure relates to improved solvent formulations that utilizes less energy and increased carbon capture efficiency. The disclosure also addresses the high CO2 loading capacity and energy requirement over the existing carbon dioxide capture solvent.
    Type: Application
    Filed: September 16, 2011
    Publication date: June 27, 2013
    Applicant: Carbon Clean Solutions Pvt. Ltd.
    Inventor: Prateek Bumb
  • Patent number: 8470275
    Abstract: Reduced-carbon footprint concrete compositions, and methods for making and using the same, are provided. Aspects of the reduced-carbon footprint concrete compositions include CO2-sequestering carbonate compounds, which may be present in the hydraulic cement and/or aggregate components of the concrete. The reduced-carbon footprint concrete compositions find use in a variety of applications, including use in a variety of building materials and building applications.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: June 25, 2013
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Andrew Youngs, Terence C. Holland
  • Patent number: 8440006
    Abstract: An apparatus 100 for scrubbing flue gas 122, the apparatus 100 including a tower 140 having an inlet 120 receiving a flow of flue gas 122 and a recycle tank portion 142; a fluid 162 disposed in the recycle tank portion 142; and an aerator 150 having at least one opening 152 for introduction of an oxygen-containing gas 154 into the fluid 162, wherein the at least one opening 152 is positioned to release the oxygen-containing gas 154 at least at a distance greater than or equal to a predetermined radial distance F from the inlet 120, the predetermined radial distance F being equal to at least 10% of a diameter of the recycle tank portion 142.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: May 14, 2013
    Assignee: ALSTOM Technology Ltd
    Inventor: Dennis J. Laslo
  • Patent number: 8431100
    Abstract: CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2-sequestering formed building material.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: April 30, 2013
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Andrew Youngs, Terence C. Holland
  • Patent number: 8414853
    Abstract: A solvent based flue gas processing system for removing CO2 from a flue gas stream is described. A catalyst is provided to increase the efficiency of the solvent in capturing CO2 from the flue gas stream or in regenerating the solvent.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: April 9, 2013
    Assignee: ALSTOM Technology Ltd
    Inventors: Zheng Liu, Naresh B. Handagama
  • Publication number: 20130071307
    Abstract: The absorptive removal of carbon dioxide from biogas using a scrubbing liquid in which carbon dioxide is chemically bound proceeds by heating the loaded scrubbing liquid, occurring after the absorption, to a temperature at which liberation of CO2 begins. Immediately thereafter, the loaded scrubbing liquid is fed to at least one centrifugal separator for separating off the gas phase from the liquid phase, wherein methane and dissolved fractions of CO2 escape via the gas phase. After separation is complete, the gas phase is passed into the absorber unit and the liquid phase is further heated to the temperature required for desorption and fed to the desorption unit for regeneration.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: MT -Biomethan GmbH
    Inventors: Stephan Engelke, Uwe Jordan
  • Publication number: 20130058853
    Abstract: A gas separation process for treating an exhaust gas stream from a combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, and flowing a second portion of the exhaust stream and at least a portion of an off-gas stream from the carbon dioxide capture step across the feed side of a membrane, while flowing a sweep gas stream, usually air, across the permeate side, and then passing the resulting permeate sweep stream back to the combustor.
    Type: Application
    Filed: October 31, 2012
    Publication date: March 7, 2013
    Applicant: MEMBRANE TECHNOLOGY AND RRESEARCH, INC
    Inventor: Membrane Technology and Rresearch, Inc
  • Patent number: 8388919
    Abstract: The present invention is based on the realization that the carbon dioxide component of industrial gas streams also containing steam can be processed so to utilize either as latent and/or sensible heat the heat available from the steam component to assist in separating carbon dioxide from the remainder of the gas stream. For example, flue gases produced by power stations burning brown coal, black coal or natural gas inherently contain a useful amount of energy that can be harnessed according to the present invention. According to particular preferred forms of the invention, nitrogen and sulphur constituent such as SOx and NOx, H2S and other nitrogen containing compounds may also be removed from the gas stream through direct contact with the absorbing medium and used to produce by-products such as fertilizer material.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: March 5, 2013
    Assignee: CO2CRC Technologies Pty Ltd
    Inventors: Barry Hooper, Geoff Stevens, Sandra Kentish
  • Publication number: 20130052111
    Abstract: The invention relates to a method for removing gas components SOX, NOx, and CO2 from a flue gas, comprising the steps of: a) contacting the flue gas with a first liquid medium which provides a first plasma containing reactive electrons or ions in an amount such that the gas molecules SOX are subject to impingement of the electrons or ions in the first plasma to enable the dissociation of the gas molecules SOX so as to remove SOx from the flue gas; b) contacting the flue gas obtained from step a) with a second liquid medium which provides a second plasma containing reactive electrons or ions in an amount such that the gas molecules CO2 are subject to impingement of the electrons or ions in the second plasma to enable the dissociation of the gas molecules CO2 so as to remove CO2 from the flue gas; and c) contacting the flue gas obtained from step b) with a third liquid medium which provides a third plasma containing reactive electrons or ions in an amount such that the gas molecules NOx are subject to impingeme
    Type: Application
    Filed: May 26, 2010
    Publication date: February 28, 2013
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Publication number: 20130052110
    Abstract: A process for removing CO2 from a CO2 containing gas stream in which the CO2 containing gas stream is contacted with an aqueous ammonium solution. The aqueous ammonia solution comprises 0.1-40% w/v, v/v/ w/w ammonia, and a soluble salt at a concentration range of 0.01%-10% wt or v/v or w/v, the soluble salt having cations selected from the group of group IA, IIA, IIIA and IVA metals with counter anions selected from the group of anion of group VIIA elements, NO3?, SO42?, OH43?, PO43? and HCO3?. The invention also extends to a CO2 capture solvent comprising an aqueous ammonia solution and the above soluble salt.
    Type: Application
    Filed: February 21, 2011
    Publication date: February 28, 2013
    Inventors: Phil Jackson, Moetaz Ibrahim Attalla, Benjamin Jack Ballinger
  • Patent number: 8357344
    Abstract: The gaseous effluent to be treated is contacted in column C1 with an absorbent solution selected for its property of forming two separable phases when it is heated. The regenerated absorbent solution is separated into two phases in drum B1; a fraction rich in water and a fraction rich in reactive compounds. Separation allows to optimize the operations performed on the regenerated absorbent solution. On the one hand, separation allows to carry out vaporization, through reboiler R1, of a fraction of the absorbent solution, preferably containing a limited reactive compound concentration in relation to the absorbent solution, thus limiting their degradation. On the other hand, separation of the phases allows to reduce the amount of solution to be treated in order to remove the non-regeneratable salts and thus to reduce the costs linked with their elimination. Finally, separation allows to eliminate the degradation products by carrying out a specific and suitable purification for each phase.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: January 22, 2013
    Assignee: IFP
    Inventors: Pierre-Antoine Bouillon, Marc Jacquin
  • Publication number: 20130004394
    Abstract: CO2 capture from flue gas is a costly procedure, usually due to the energy required for regeneration of the capture medium. One potential medium which could reduce such an energy consumption, however, is Na2CO3. It has been well studied as a sorbent, and it is understood that the theoretical energy penalty of use of Na2CO3 for CO2 separation is low, due to the relatively low heat of reaction and low heat capacity of the material. While it offers some advantages over other methods, its primary downfall is the slow reaction with CO2 during adsorption and the slow Na2CO3 regeneration process. In an effort to reduce the energy penalty of post-combustion CO2 capture, the catalytic decomposition of NaHCO3 is studied. Nanoporous TiO(OH)2 is examined as a potential catalytic support for a cyclic Na2CO3/NaHCO3 based CO2 capture process.
    Type: Application
    Filed: May 11, 2012
    Publication date: January 3, 2013
    Inventor: Maohong Fan
  • Publication number: 20120237421
    Abstract: A method for the removal of CO2 from exhaust gases, e.g., exhaust gases from plants for pig-iron production or exhaust gases from synthesis-gas plants, includes removing CO2 using chemical and/or physical absorption, wherein the heat for regenerating the absorbent is obtained at least partially from an air separation plant. As a result, the CO2 can be separated from the exhaust gases to a greater extent than in the pressure-swing adsorption of other gases, but a lower-order energy carrier can additionally be used for this purpose.
    Type: Application
    Filed: September 7, 2010
    Publication date: September 20, 2012
    Inventors: Robert Millner, Jan-Friedemann Plaul, Johannes Leopold Schenk, Kurt Wieder
  • Publication number: 20120132443
    Abstract: A process for the removal of CO2 and/or H2S from a gas comprising CO2 and/or H2S. The process comprises contacting the gas in an absorber with an absorbing solution wherein the absorbing solution absorbs at least part of the CO2 and/or H2S so as, to produce a CO2 and/or H2S lean gas and a CO2 and/or H2S rich absorbing solution. At least part of the CO2 and/or H2S rich absorbing solution is heated to produce a heated CO2 and/or H2S rich absorbing solution. At least part of the CO2 and/or H2S is removed from the heated CO2 and/or H2S rich absorbing solution in a regenerator to produce a CO2 and/or H2S rich gas and a CO2 and/or H2S lean absorbing solution. In the process, at least part of the heat for heating the CO2 and/or H2S rich absorbing solution in step b) is obtained in a sequence of multiple heat exchangers.
    Type: Application
    Filed: June 18, 2010
    Publication date: May 31, 2012
    Inventor: Jiri Peter Thomas Van Straelen
  • Publication number: 20120058032
    Abstract: The present invention provides a method and apparatus for removing a contaminant, such as carbon dioxide, from a gas stream, such as ambient air. The contaminant is removed from the gas stream by a sorbent which may be regenerated using a humidity swing, a thermal swing, or a combination thereof. The sorbent may comprise a substrate having embedded positive ions and individually mobile negative ions wherein the positive ions are sufficiently spaced to prevent interactions between the negative ions. Where a thermal swing is used, heat may be conserved by employing a heat exchanger to transfer heat from the regenerated sorbent to an amount of sorbent that is loaded with the contaminant prior to regeneration.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Inventors: Klaus S. Lackner, Allen B. Wright
  • Patent number: 8034316
    Abstract: Carbon blacks, such as rubber blacks, having a low PAH concentration are described. Furthermore, elastomeric or rubber compositions containing the carbon black of the present invention are further described, as well as methods of making carbon black having a low PAH concentration.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: October 11, 2011
    Assignee: Cabot Corporation
    Inventors: Irina S. Yurovskaya, William L. Sifleet, Steven J. List, Martin C. Green, Anand Prakash
  • Publication number: 20110243822
    Abstract: The present invention relates to a method for potassium or nitrogen based fertilizer production from the byproducts of flue gas processing. Further, the present invention relates to a method for isolating fertilizer precursors from a stream of flue gas. The method including a dry sorbent operation, wet scrubbing operation and an oxidization step to remove air pollutants, a carbon dioxide capture step and a sodium bicarbonate precipitation step. The steps involved in the removal of air pollutants are used to isolate precursors for the production of fertilizer. Additionally, the present invention relates to a method for the removal of carbon dioxide from a flue gas stream.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: AIRBORNE TECHNOLOGIES INC.
    Inventor: MURRAY EDWARD ARNE MORTSON
  • Publication number: 20110195005
    Abstract: The present invention is based on the realization that the carbon dioxide component of industrial gas streams also containing steam can be processed so to utilize either as latent and/or sensible heat the heat available from the steam component to assist in separating carbon dioxide from the remainder of the gas stream. For example, flue gases produced by power stations burning brown coal, black coal or natural gas inherently contain a useful amount of energy that can be harnessed according to the present invention. According to particular preferred forms of the invention, nitrogen and sulphur constituent such as SOx and NOx, H2S and other nitrogen containing compounds may also be removed from the gas stream through direct contact with the absorbing medium and used to produce by-products such as fertiliser material.
    Type: Application
    Filed: April 19, 2011
    Publication date: August 11, 2011
    Applicant: CO2CRC TECHNOLOGIES PTY LTD.
    Inventors: Barry Hooper, Geoff Stevens, Sandra Kentish
  • Publication number: 20110159575
    Abstract: A method for collecting combustion gases by (a) contacting a liquid phase with a gas flow containing said gases, where the liquid phase contains carbonate/bicarbonate buffer salts in a ratio of around 2:1, with a total inorganic carbon concentration no higher than 25 g/L and pH values between 8 and 12; and (b) recovering the CO2-rich liquid phase produced in step (a).
    Type: Application
    Filed: March 9, 2009
    Publication date: June 30, 2011
    Inventors: Francisco Gabriel Acién Fernández, Emilio Molina Grima, José María Fernández Sevilla, Cynthia Victoria González López, Bernardo Llamas Moya, Juan Carlos Ballesteros Aparicio
  • Patent number: 7919064
    Abstract: There is provided a process for the capture and sequestration of carbon dioxide that would otherwise enter the atmosphere and contribute to global warming and other problems. CO2 capture is accomplished by reacting carbon dioxide in flue gas with an alkali metal carbonate, or a metal oxide, particularly containing an alkaline earth metal or iron, to form a carbonate salt. A preferred carbonate for CO2 capture is a dilute aqueous solution of additive-free (Na2CO3). Other carbonates include (K2CO3) or other metal ion that can produce both a carbonate and a bicarbonate salt. Examples of suitable metal oxides include several alkaline earths including CaO and MgO. The captured CO2 is preferably sequestered using any available mineral or industrial waste that contains calcium magnesium or iron in non-carbonate forms, or iron in the Fe+2 oxidation state.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: April 5, 2011
    Assignee: Michigan Technological University
    Inventors: Surendra Komar Kawatra, Timothy C. Eisele, John J. Simmons
  • Publication number: 20110070137
    Abstract: Processes are disclosed for managing the reduction of carbon dioxide emissions by a process of mining, acquiring water, capturing carbon and disposing of water containing bicarbonates. A number of process configurations of accelerated weathering of carbonate mineral-containing materials (AWC) reactors are disclosed.
    Type: Application
    Filed: May 24, 2010
    Publication date: March 24, 2011
    Inventors: Dana Brock, Michael H. Kobler, John David Watson
  • Patent number: 7910079
    Abstract: A method and an apparatus for removing carbon dioxide (CO2) from sulphur dioxide containing (SO2) flue gases, wherein the flue gases are washed with washing solution in a scrubber, which comprises at least two washing stages. In the first washing stage the flue gases are washed for removing the sulphur dioxide in the flue gases and after that in the second washing stage for removing carbon dioxide (CO2). Sodium carbonate solution (Na2CO3) is used as washing solution in both the first and the second washing stages.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 22, 2011
    Assignee: Metso Power Oy
    Inventors: Mikko Anttila, Risto Hämäläinen, Seppo Tuominiemi
  • Patent number: 7906088
    Abstract: Mixing small amounts of an inorganic halide, such as NaCl, to basic copper carbonate followed by calcination at a temperature sufficient to decompose the carbonate results in a significant improvement in resistance to reduction of the resulting copper oxide. The introduction of the halide can be also achieved during the precipitation of the carbonate precursor. These reduction resistant copper oxides can be in the form of composites with alumina and are especially useful for purification of gas or liquid streams containing hydrogen or other reducing agents. These reduction resistant copper oxides can function at near ambient temperatures.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: March 15, 2011
    Assignee: UOP LLC
    Inventors: Vladislav I. Kanazirev, Peter Rumfola, III
  • Publication number: 20110059000
    Abstract: Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include precipitating a storage stable carbon dioxide sequestering product from an alkaline-earth-metal-containing water and then disposing of the product, e.g., by placing the product in a disposal location or using the product as a component of a manufactured composition. Also provided are systems for practicing methods of the invention.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 10, 2011
    Inventors: BRENT R. CONSTANTZ, Andrew Youngs, Philip Brian Tuet, Sidney Omelon, Kasra Farsad, Ryan J. Gilliam, Valentin Decker, Donald W. Kirk, J. Douglas Way, Allen J. Bard, Robert Danziger, Miguel Fernandez, Cecily Ryan
  • Patent number: 7887694
    Abstract: Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include precipitating a storage stable carbon dioxide sequestering product from an alkaline-earth-metal-containing water and then disposing of the product, e.g., by placing the product in a disposal location or using the product as a component of a manufactured composition. Also provided are systems for practicing methods of the invention.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: February 15, 2011
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Andrew Youngs, Philip Brian Tuet, Sidney Omelon, Kasra Farsad, Ryan J. Gilliam, Valentin Decker, Donald W. Kirk, J. Douglas Way, Allen J. Bard, Robert Danziger, Miguel Fernandez, Cecily Ryan
  • Patent number: 7879305
    Abstract: A fluidized bed reactor device for sequestering flue gas CO2 from a flue gas source is provided. The fluidized bed reactor device comprises an operating portion having a first end and a second end. A flue gas inlet is formed at the first end of the operating portion with the flue gas inlet receiving flue gas from the flue gas source. A flue gas outlet formed at the second end of the operating portion. A distributor plate is mounted within the operating portion adjacent the first end of the operating portion. A volume of fly ash is encased within the operating portion between the second end and the distributor plate with the flue gas traveling through the distributor plate and the fly ash creating reacted flue gas wherein the reacted flue gas exits the operating portion through the flue gas outlet.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: February 1, 2011
    Assignee: University of Wyoming
    Inventors: Katta J. Reddy, Morris D. Argyle
  • Patent number: 7842126
    Abstract: Two methods are provide for the separation of carbon dioxide from the flue gases. The first method utilizes a phase-separating moiety dissolved in an aqueous solution of a basic moiety to capture carbon dioxide. The second method utilizes a phase-separating moiety as a suspended solid in an aqueous solution of a basic moiety to capture carbon dioxide. The first method takes advantage of the surface-independent nature of the CO2 absorption reactions in a homogeneous aqueous system. The second method also provides permanent sequestration of the carbon dioxide. Both methods incorporate the kinetic rate enhancements of amine-based scrubbing while eliminating the need to heat the entire amine solution (80% water) in order to regenerate and release CO2. Both methods also take advantage of the low-regeneration temperatures of CO2-bearing mineral systems such as Na2CO3/NaHCO3 and K2CO3/KHCO3.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 30, 2010
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Robert Dilmore, Douglas Allen, Yee Soong, Sheila Hedges
  • Publication number: 20100267123
    Abstract: A method of recovering carbon dioxide from a stream of flue gases, includes: contacting the stream at a gas pressure above atmospheric pressure with an aqueous solvent system, containing ammonium, carbonate and bicarbonate ions, at a temperature above 10° C. to effect absorption of CO2 from the stream, and separating the solvent containing the absorbed CO2 (as carbonate, bicarbonate and CO2(aq)) from the stream of CO2-leaner flue gases to form a CO2 and/or bicarbonate-rich solvent stream. In a second aspect, the CO2-leaner flue gases are cooled by contact with water that dissolves ammonia therefrom, and recycling said dissolved ammonia back to said solvent system. Apparatus is also disclosed.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 21, 2010
    Inventor: Louis Wibberley
  • Publication number: 20100254869
    Abstract: A device for purifying smoke gases comprising a cylindrical container with a gas inlet at its bottom region and a gas exit for purified gas in its top region, as well as an inlet for washing liquid and an exit for spent washing liquid, wherein the container internally does not include any current baffles so that the gas and liquid can rotate freely, and wherein the container internally has a stirring device of perforated plates, e.g. netting discs, for optimal mixing of gas and fluid. It is also disclosed a process for purifying such smoke gases, wherein such a purification device is used.
    Type: Application
    Filed: May 26, 2008
    Publication date: October 7, 2010
    Applicant: CO2 Purification AS
    Inventor: Thomas Thomassen
  • Publication number: 20100196235
    Abstract: The invention provides a process for sequestration of carbon dioxide by mineral carbonation comprising the following steps: (a) converting a magnesium or calcium sheet silicate hydroxide into a magnesium or calcium ortho- or chain silicate by bringing the silicate hydroxide in direct or indirect heat-exchange contact with hot flue gas to obtain the silicate, silica, water and cooled flue gas; (b) contacting the silicate obtained in step (a) with carbon dioxide to convert the silicate into magnesium or calcium carbonate and silica.
    Type: Application
    Filed: May 16, 2008
    Publication date: August 5, 2010
    Inventors: Jacobus Johannes Cornelis Geerlings, Evert Wesker
  • Patent number: 7758836
    Abstract: A system and method for removing sulfur-containing contaminants from indoor air includes a panel system having a first layer and a second layer. The first layer can include a base media onto which sodium bicarbonate is attached. The second layer can include a base media onto which activated carbon is attached. Indoor air including sulfur-containing contaminants can contact and pass through the first layer. Sulfuric acid can react with the sodium bicarbonate to produce sodium sulfate, which can, in turn, act as a drying agent for organic sulfur-containing contaminants in the indoor air, such as carbon disulfide and carbonyl sulfide. As a result of such drying, the second layer can more effectively trap and/or bind (adsorb) the organic sulfur-containing contaminants so that these contaminants are removed from the contaminated air. The treated air can be returned to an indoor space of the structure.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: July 20, 2010
    Inventors: Ronald G. Huggins, Carl M. Sabatello, Paul T. Sabatello
  • Publication number: 20100172813
    Abstract: A method for separating carbon dioxide from a flue gas using a membrane (membrane module) is characterized in that the flue gas is at temperatures above the condensation point of the water vapor before entering the membrane separation stage. In this way, condensation of any potentially entrained water vapor out of the flue gas is avoided, so as to consistently prevent clogging of the membrane pores. The high temperatures can be achieved in different ways. The temperature of the flue gas can easily be increased to the necessary temperatures by way of an upstream heat exchanger or a burner. A compressor, which is connected upstream of the membrane module and also advantageously increases the CO2 partial pressure, brings about the necessary temperature increase at the same time. As a further alternative for the invention, the CO2 separation is performed even before desulfurizing the flue gas.
    Type: Application
    Filed: May 30, 2008
    Publication date: July 8, 2010
    Inventors: Jewgeni Nazarko, Ernst Riensche, Ludger Blum, Reinhard Menzer, Wilhelm Albert Meulenberg, Martin Bram