By Suspension Of Metal Oxide Or Hydroxide Particles In Liquid Patents (Class 423/225)
  • Patent number: 10286356
    Abstract: The present invention relates to an aqueous alkanolamine solution demonstrating low volatility comprising 2-di-methylamino-2-hydroxymethyl-1, 3-propanediol useful for removing acid gases from gaseous mixtures. Said aqueous alkanolamine solution may further comprise one or more of an acid or acid-forming compound, another amino compound, an activator, a physical solvent, or one or more other compounds used in gal-liquid treatment practices. Further, the present invention relates to a process for removing acid gases from a gaseous mixture, preferably hydrogen sulfide, comprising the step of contacting the gaseous mixture with said aqueous alkanolamine solution. Examples of the gaseous mixtures include natural gas, synthesis gas, tail gas, and refinery gas.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: May 14, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Christophe R. Laroche, John R. Dowdle
  • Patent number: 10159930
    Abstract: The present invention relates to an aqueous alkanolamine solution demonstrating low volatility comprising 2-di-methylamino-2-hydroxymethyl-1, 3-propanediol useful for removing acid gases from gaseous mixtures. Said aqueous alkanolamine solution may further comprise one or more of an acid or acid-forming compound, another amino compound, an activator, a physical solvent, or one or more other compounds used in gal-liquid treatment practices. Further, the present invention relates to a process for removing acid gases from a gaseous mixture, preferably hydrogen sulfide, comprising the step of contacting the gaseous mixture with said aqueous alkanolamine solution. Examples of the gaseous mixtures include natural gas, synthesis gas, tail gas, and refinery gas.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 25, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Christophe R. Laroche, John R. Dowdle
  • Patent number: 9664446
    Abstract: The invention relates to a method for producing aggregate and calcium carbonate from concrete aggregate, and a device for carrying out said method.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: May 30, 2017
    Assignee: Cemex Research Group AG
    Inventor: Gunther Achenbach
  • Patent number: 9260302
    Abstract: High-pressure steam supply in hydrogen production process is made more efficient by water gas shift process which comprises, in alternating sequence: (a) a reaction stage wherein a feed gas comprising CO and H2O is fed into a water gas shift reactor containing a sorbent material capable of adsorbing H2O and CO2 and wherein a product gas issuing from the reactor is collected, (b) a regeneration stage wherein CO2 is removed from the reactor, (c) a loading stage, wherein H2O is fed into the reactor; wherein said feed gas mixture has a molar ratio of H2O to CO below 1.2, and the loading stage is performed at a lower pressure than the pressure of the reaction stage.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 16, 2016
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Hendricus Adrianus Johannes Van Dijk, Paul Dean Cobden, Stéphane Walspurger, Jan Wilco Dijkstra
  • Publication number: 20150110694
    Abstract: The present invention generally relates to methods and systems for carrying out a pH-influenced chemical and/or biological reaction. In some embodiments, the pH-influenced reaction involves the conversion of CO2 to a dissolved species.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 23, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Aly Eldeen O. Eltayeb, Michael C. Stern, Trevor Alan Hatton
  • Publication number: 20140374654
    Abstract: The invention involves the formation of a stable iron (II) oxide and/or hydroxide. Preferably these oxides and/or hydroxides are present as nanoparticles in the 5-10 nanometer range. It has been discovered that such particles can be formed at lower cost and with fewer impurities by using ferrous carbonate (FeCO3) from siderite as compared to known processes from various iron salts such as sulfates and chlorides. The novel nanoparticles are particularly adapted to removing sulfur compounds such as H2S from liquid and/or gaseous streams, such as hydrocarbon streams.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 25, 2014
    Applicant: New Technology Ventures, Inc.
    Inventors: Floyd E. Farha, Veronica M. Irurzun
  • Patent number: 8916118
    Abstract: The invention relates to a CO2 y SO2 capture method comprising the following steps consisting in: a) introducing an aqueous stream of a hydroxide of an alkali or alkaline-earth metal and another gas stream of CO2 into a bubble column purifier/reactor, in order to form a carbonate of the alkali or alkaline-earth metal; b) introducing the carbonate of the alkali or alkaline-earth metal into a bubble column purifier/reactor, into which a stream of a gas mixture of CO2 and SO2 is introduced in order to form sulphite of an alkali or alkaline-earth metal and carbon dioxide; c) transforming the sulphite from step (b) into sulphate of said metal by means of oxidation with air; and d) re-circulating the unreacted CO2 produced during step (b) by reacting the slurry with the SO2, in the reactor from step (a).
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: December 23, 2014
    Assignees: Consejo Superior De Investigaciones Cientificas, Universidad De Sevilla, Universidad De Cadiz
    Inventors: Cristian Cardenas Escudero, Luis Maria Esquivias Fedriani, Victor Morales Florez, Alberto Santos Sanchez
  • Patent number: 8883104
    Abstract: In some embodiments, the invention provides systems and methods for removing carbon dioxide and/or additional components of waste gas streams, comprising contacting the waste gas stream with an aqueous solution, removing carbon dioxide and/or additional components from the waste gas stream, and containing the carbon dioxide and/or additional components, in one form or another, in a composition. In some embodiments, the composition is a precipitation material comprising carbonates, bicarbonates, or carbonates and bicarbonates. In some embodiments, the composition further comprises carbonate and/or bicarbonate co-products resulting from co-processing SOx, NOx, particulate matter, and/or certain metals. Additional waste streams such as liquid, solid, or multiphasic waste streams may be processed as well.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: November 11, 2014
    Assignee: Calera Corporation
    Inventors: William Randall Seeker, Brent Constantz, Vinod Khosla
  • 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: 8815192
    Abstract: A cyclical system that uses a metal hydroxide to produce a metal carbonate, remove carbon dioxide from a waste gas source, and produce more metal hydroxide needed for the beginning of the cycle. Initially, the metal hydroxide is mixed with waste gases in a carbon dioxide scrubber. The scrubber reacts the carbon dioxide with the metal hydroxide to produce a metal carbonate. Some of the metal carbon is removed, therein removing carbon dioxide from the environment. Some of the metal carbonate is heated to produce metal oxide and carbon dioxide. The carbon dioxide is drawn away. Oxygen is introduced into the reaction chamber. The oxygen reacts with the metal oxide to produce an oxidized metal oxide and heat. The oxidized metal oxide is reduced with an acid and volatile base to produce metal hydroxide. The metal hydroxide is recycled. The acid is regenerated. The volatile base is recovered and recycled.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: August 26, 2014
    Inventor: Calvin E. Phelps, Sr.
  • 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: 8741244
    Abstract: Methods for removing carbon dioxide and other pollutants from a gas stream are provided. The methods include obtaining hydroxide in an aqueous mixture, mixing the hydroxide with the gas stream to produce bicarbonate products or a combination of carbonate and bicarbonate products in an admixture, separating the products from the admixture, and using the products to perform ion-exchanges with one or more group-1 or group-2 salts to precipitate carbonates, wherein obtaining the hydroxide comprises obtaining a group-1 or group-2 salt; mixing the salt with acid and water, acid and steam, or acid, water, and steam to produce a protonated brine solution; and electrolyzing the protonated brine solution to produce a hydroxide; and wherein mixing the hydroxide with the gas stream comprises altering the product equilibrium to favor the production of bicarbonate products.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: June 3, 2014
    Assignee: Skyonic Corporation
    Inventor: Joe David Jones
  • 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: 8652435
    Abstract: An improved process for reduction-oxidation desulphurization uses an oxidizer operating at a pressure greater than the absorber where a liquid reduction-oxidation catalyst solution contacts a sulfur-containing gas feed stream.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: February 18, 2014
    Assignee: Merichem Company
    Inventor: Gary J. Nagl
  • Patent number: 8628603
    Abstract: A method for treating a process gas with a liquid comprises contacting a process gas with a hygroscopic working fluid in order to remove a constituent from the process gas. A system for treating a process gas with a liquid comprises a hygroscopic working fluid comprising a component adapted to absorb or react with a constituent of a process gas, and a liquid-gas contactor for contacting the working fluid and the process gas, wherein the constituent is removed from the process gas within the liquid-gas contactor.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 14, 2014
    Assignee: Energy & Enviromental Research Center Foundation
    Inventors: Christopher L. Martin, Ye Zhuang
  • Patent number: 8617499
    Abstract: The disclosure utilizes a hydroxide sorbent for humidification and CO2 removal from a gaseous stream comprised of CO and CO2 prior to entry into a water-gas-shift reactor, in order to decrease CO2 concentration and increase H2O concentration and shift the water-gas shift reaction toward the forward reaction products CO2 and H2. The hydroxide sorbent may be utilized for absorption of CO2 exiting the water-gas shift reactor, producing an enriched H2 stream. The disclosure further provides for regeneration of the hydroxide sorbent at temperature approximating water-gas shift conditions, and for utilizing H2O product liberated as a result of the CO2 absorption.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 31, 2013
    Assignee: U.S. Department of Energy
    Inventors: Ranjani V. Siriwardane, James C. Fisher, II
  • Patent number: 8591847
    Abstract: A wet desulfurizing method for removal of H2S from gaseous stream at normal temperature, the method including: (a) contacting and reacting the gaseous stream containing H2S with a suspension containing desulfurizer in a desulfurization reactor; (b) leading the suspension containing waste agent produced by desulfurizing of desulfurizer after the reaction in step (a) to a regenerative reactor, and regenerating the waste agent using an oxygen-containing gas; (c) leading the suspension containing desulfurizer regenerated in step (b) to the desulfurization reactor in step (a), and contacting and reacting with the gaseous stream containing H2S. A simple method for removing hydrogen sulfide from gas at room temperature and normal pressure, which features high desulfurization rate and low cost.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 26, 2013
    Assignee: Beijing Sanju Environmental Protection and New Material Co., Ltd.
    Inventors: Zhenyi Liu, Zhiqiang Wu, Xiangsheng Wang
  • 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
  • Patent number: 8529858
    Abstract: A process for the energy efficient, environmentally friendly recovery of liquid and gaseous products from solid or semi-solid hydrocarbon resources, in particular, oil shale or tar sands. The process involves non-oxidative pyrolysis to recover fluid energy values, oxidative combustion to recover energy values as recoverable heat, and environmental sequestration of gases produced.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 10, 2013
    Assignee: JWBA, Inc.
    Inventor: Richard C. Russell
  • Patent number: 8501125
    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. Methods and processes of environmental remediation and recovering metals from waste streams are also provided.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: August 6, 2013
    Assignee: Expansion Energy, LLC
    Inventor: David Vandor
  • Patent number: 8470282
    Abstract: A method of producing calcium carbonate from lime comprises the steps of: (i) providing an aqueous solution comprising 10% to 35% by weight of dissolved polyhydroxy compound and 1% to 5% by weight of dissolved calcium hydroxide (expressed as Ca(OH)2) and having a pH of at least 11.5; (ii) treating the solution prepared in step (i) to remove solids including suspended solids; (iii) dispersing carbon dioxide through the solution so as to form calcium carbonate with a consequential reduction in the pH of the reaction mixture, (iv) during a time period beginning at the start of a sudden, short rise in pH and ended during a subsequent fall in pH but before it reaches 9.5 terminating the dispersion of carbon dioxide and adding an alkaline reagent to maintain a pH for the product mixture of at least 9.5, and (v) recovering precipitated calcium carbonate.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: June 25, 2013
    Assignee: CalciTech Synthetic Minerals Ltd.
    Inventors: Christoph Jensen, Ilka Markwardt
  • Patent number: 8470276
    Abstract: A process for CO2 separation using a regenerable Mg(OH)2 sorbent. The process absorbs CO2 through the formation of MgCO3 and releases water product H2O. The MgCO3 is partially regenerated through direct contact with steam, which acts to heat the magnesium carbonate to a higher temperature, provide heat duty required to decompose the magnesium carbonate to yield MgO and CO2, provide an H2O environment over the magnesium carbonate thereby shifting the equilibrium and increasing the potential for CO2 desorption, and supply H2O for rehydroxylation of a portion of the MgO. The mixture is polished in the absence of CO2 using water product H2O produced during the CO2 absorption to maintain sorbent capture capacity. The sorbent now comprised substantially of Mg(OH)2 is then available for further CO2 absorption duty in a cyclic process.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: June 25, 2013
    Assignee: U.S. Department of Energy
    Inventors: Ranjani V. Siriwardane, Robert W. Stevens, Jr.
  • 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
  • Publication number: 20130115153
    Abstract: The present invention describes methods and systems for extracting, capturing, reducing, storing, sequestering, or disposing of carbon dioxide (CO2), particularly from the air. The CO2 extraction methods and systems involve the use of chemical processes. Methods are also described for extracting and/or capturing CO2 via exposing air containing carbon dioxide to a solution comprising a base—resulting in a basic solution which absorbs carbon dioxide and produces a carbonate solution. The solution is causticized and the temperature is increased to release carbon dioxide, followed by hydration of solid components to regenerate the base.
    Type: Application
    Filed: May 3, 2012
    Publication date: May 9, 2013
    Inventors: Klaus S. Lackner, Frank S. Zeman
  • Patent number: 8435470
    Abstract: A method for separating CO2 from combustion exhaust gas includes discharging the CO2-containing combustion exhaust gas mass flow into the carbonator of a carbonate looping system having at least one carbonator and one calciner. Combining the CO2 of the combustion exhaust gas mass flow with a carbonate-forming sorbent inside the carbonator to form a carbonate. Sending the carbonate as a carbonate-solids mass flow is sent to the calciner. Burning the carbonate at the carbonate-specific calcination temperature by the addition of heat provided by an additional firing that uses oxygen as the oxidant, whereby regenerated sorbent and a gas essentially containing CO2 is formed. Sending the hot regenerated sorbent to the carbonator as a sorbent-solids mass flow for carbonization of CO2, and discharging the hot gas as gas mass flow.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: May 7, 2013
    Assignee: ALSTOM Technology Ltd.
    Inventor: Bernd Epple
  • Patent number: 8383072
    Abstract: A process for the separation of carbon dioxide from gas mixtures is disclosed in which a metal oxide sorbent, which is used to capture and release carbon dioxide, is recycled. The process incorporates the regeneration of the carbon dioxide capture capacity of the metal oxide to maintain a high capture capacity over many cycles. The regeneration involves hydrating the metal oxide and then heating the resulting metal hydroxide under a gas atmosphere that is effective to suppress the dehydration of the hydroxide so that dehydration occurs at an elevated temperature. The regeneration may also be used independently from the carbon dioxide separation process to produce, from a metal hydroxide, a metal oxide having an enhanced resistance to attrition and fragmentation.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: February 26, 2013
    Assignee: Industrial Research Limited
    Inventors: Stuart Smedley, Vlatko Materic, Carolyn Mary Henderson
  • Patent number: 8383073
    Abstract: A method and apparatus for controlling emissions of acid forming gases such as sulfur dioxide from cement plants is disclosed. Gaseous effluent from the cement plant pyroprocessing chamber is routed to the plant's raw mill to heat and dry the feed meal used in cement production. When the raw mill is in operation microfine lime particles are sprayed into the raw mill using a nozzle system. The spraying of hydrated lime into the raw mill scrubs acid forming gases in the process gaseous effluent. When the raw mill is not operational, microfine lime is sprayed into a gas conditioning tower that is also used to reduce the temperature of the effluent gases to facilitate efficient collection of dust particles prior to emission of the cleansed effluent flow into the atmosphere.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: February 26, 2013
    Assignee: Envirocare International Inc.
    Inventor: James J. Schwab
  • Patent number: 8372365
    Abstract: An improved process for reduction-oxidation desulphurization uses an oxidizer operating at a pressure greater than the absorber where a liquid reduction-oxidation catalyst solution contacts a sulfur-containing gas feed stream.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: February 12, 2013
    Assignee: Merichem Company
    Inventor: Gary J. Nagl
  • Patent number: 8367025
    Abstract: The disclosure provides methods and systems for sequestering and/or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: February 5, 2013
    Assignee: C-Quest Technologies LLC
    Inventor: Douglas C. Comrie
  • Patent number: 8354086
    Abstract: A CO2 control device and method for capturing CO2 from fluid flow, including: a flow-through apparatus and an CO2 absorbing filter treated with an alkaline material which is housed within the flow-through apparatus. The flow-through apparatus receives fluid flow and the CO2 from the fluid flow is absorbed by the CO2 absorbing filter. The absorbed CO2 is converted into CaCO3 which is combined with volcanic ash to form a useful cement material.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: January 15, 2013
    Inventors: Kenneth D. Murray, Katherine A. Murray
  • Patent number: 8333944
    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: November 9, 2010
    Date of Patent: December 18, 2012
    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
  • Publication number: 20120294788
    Abstract: A water-desalination and carbon dioxide extraction method employs a greenhouse having a transparent, double-pane roof structure and containing an open-top receptacle for a receiving quantity of saline water or an aqueous mixture, derived from flue gas, of dissolved and suspended alkaline metal salts, which roof structure and receptacle are substantially coextensive and rectangular. A series of remotely controllable nozzles, capable of producing sheet-like discharges, withdraw the saline water or the aqueous mixture from the receptacle and discharges it into the overlying space for exposure to solar radiation passing through the roof structure, for controlled absorption of solar energy by the saline water or for effecting release carbon dioxide at elevated temperatures. Ambient air, heated during passage through channels in the transparent roof structure, may be used in a second greenhouse for promoting evaporation of free water or in other method steps.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Inventor: William Arthur Walsh, JR.
  • Patent number: 8211394
    Abstract: A CO2 control device and method for capturing CO2 from fluid flow, including: a flow-through apparatus and an CO2 absorbing filter treated with an alkaline material which is housed within the flow-through apparatus. The flow-through apparatus receives fluid flow and the CO2 from the fluid flow is absorbed by the CO2 absorbing filter. The absorbed CO2 is converted into CaCO3 which is combined with volcanic ash to form a useful cement material.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 3, 2012
    Inventors: Kenneth D. Murray, Katherine A. Murray
  • Publication number: 20120121488
    Abstract: The disclosure provides methods and systems for sequestering and/or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicant: C-QUEST TECHNOLOGIES LLC
    Inventor: Douglas C. Comrie
  • Patent number: 8119091
    Abstract: A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated by causticization to generate carbon dioxide and sodium hydroxide. The first aqueous solution of step (a) is formed by scrubbing a gas containing carbon dioxide with an aqueous solution of sodium hydroxide.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: February 21, 2012
    Assignee: Carbon Engineering Limited Partnership
    Inventors: David Keith, Maryam Mahmoudkhani
  • Patent number: 8114367
    Abstract: A method of sequestering a greenhouse gas is described, which comprises: (i) providing a solution carrying a first reagent that is capable of reacting with a greenhouse gas; (ii) contacting the solution with a greenhouse gas under conditions that promote a reaction between the at least first reagent and the greenhouse gas to produce at least a first reactant; (iii) providing a porous matrix having interstitial spaces and comprising at least a second reactant; (iv) allowing a solution carrying the at least first reactant to infiltrate at least a substantial portion of the interstitial spaces of the porous matrix under conditions that promote a reaction between the at least first reactant and the at least second reactant to provide at least a first product; and (v) allowing the at least first product to form and fill at least a portion of the interior spaces of the porous matrix, thereby sequestering a greenhouse gas.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: February 14, 2012
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Richard E. Riman, Vahit Atakan
  • Patent number: 8105558
    Abstract: The disclosure provides methods and systems for sequestering and/or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: January 31, 2012
    Assignee: C-Quest Technologies, LLC
    Inventor: Douglas C. Comrie
  • Publication number: 20110135548
    Abstract: The disclosure provides methods and systems for sequestering and/or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.
    Type: Application
    Filed: February 11, 2011
    Publication date: June 9, 2011
    Inventor: Douglas C. Comrie
  • Patent number: 7947240
    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: October 8, 2008
    Date of Patent: May 24, 2011
    Assignee: Expansion Energy, LLC
    Inventor: David Vandor
  • Patent number: 7947239
    Abstract: The present invention describes methods and systems for extracting, capturing, reducing, storing, sequestering, or disposing of carbon dioxide (CO2), particularly from the air. The CO2 extraction methods and systems involve the use of chemical processes, mineral sequestration, and solid and liquid sorbents. Methods are also described for extracting and/or capturing CO2 via condensation on solid surfaces at low temperature.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: May 24, 2011
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Klaus S. Lackner, Patrick Grimes, Samuel C. Krevor, Frank S. Zeman
  • Patent number: 7914758
    Abstract: A CO2 control device and method for capturing CO2 from fluid flow, including: a flow-through apparatus and an CO2 absorbing filter treated with an alkaline material which is housed within the flow-through apparatus. The flow-through apparatus receives fluid flow and the CO2 from the fluid flow is absorbed by the CO2 absorbing filter. The absorbed CO2 is converted into CaCO3 which is combined with volcanic ash to form a useful cement material.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 29, 2011
    Inventors: Kenneth D. Murray, Katherine A. Murray
  • Patent number: 7906086
    Abstract: The disclosure provides methods and systems for sequestering and/or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: March 15, 2011
    Inventor: Douglas C. Comrie
  • 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: 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: 20100260653
    Abstract: Apparatuses and methods for removing carbon dioxide and other pollutants from a gas stream are provided. The methods include obtaining hydroxide in an aqueous mixture, and mixing the hydroxide with the gas stream to produce carbonate and/or bicarbonate. Some of the apparatuses of the present invention comprise an electrolysis chamber for providing hydroxide and mixing equipment for mixing the hydroxide with a gas stream including carbon dioxide to form an admixture including carbonate and/or bicarbonate.
    Type: Application
    Filed: May 28, 2010
    Publication date: October 14, 2010
    Inventor: Joe David Jones
  • Patent number: 7780932
    Abstract: A process for desulfurizing an SO2-comprising gaseous stream comprising the steps of: a. providing an aqueous feed comprising an anion selected from a group consisting of carbonate, bicarbonate, hydroxide, sulfite, and hydrogen sulfite; b. providing an SO2-comprising gaseous feed; and c. contacting the aqueous feed and the gaseous feed to generate a desulfurized gaseous product comprising less than 40% of the feed SO2 content, and an aqueous product; wherein the contacting is carried out in a cyclone unit comprising a housing defined by a cylindrical peripheral wall and provided with at least one inlet opening for receiving fluids thereinto and with at least one swirling means, and wherein the cyclone unit is characterized in that the velocity of the gaseous stream inside the cyclone unit is between 20 m/sec and 120 m/sec.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: August 24, 2010
    Assignees: Clue AS, Eyal Research Consultants Ltd.
    Inventors: Riki Canari, Aharon Eyal
  • Patent number: 7655202
    Abstract: A process for treating flue gas containing fly ash and carbon dioxide is disclosed. In the process, carbon dioxide and fly ash are contacted with an aqueous metal hydroxide solution to convert carbon dioxide into a metal carbonate, and wherein the metal carbonate and the metal hydroxide cause the fly ash to undergo a geopolymerization reaction and form a geopolymerized fly ash. The geopolymerized fly ash is recovered for disposal or for further use, such as a concrete additive.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: February 2, 2010
    Assignee: Ceramatec, Inc.
    Inventors: Ashok V. Joshi, Chett Boxley
  • Patent number: 7648688
    Abstract: Disclosed herein is a method of separating carbon dioxide from a gas mixture using a biopolymer, including: introducing hemocyte or extrapallial fluid, extracted from shells, into a reactor filled with 1 L of a solution containing a calcium source, and then dissolving the hemocyte or extrapallial fluid in the solution to form a mixed solution; and mixing carbon dioxide or a gas mixture containing carbon dioxide into the mixed solution to separate carbon dioxide from the gas mixture.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 19, 2010
    Assignee: Korea Institute of Energy Research
    Inventors: Soon-Kwan Jeong, Seung-Woo Lee, Si-Hyun Lee, Cheong-Song Choi, Sang-Do Kim
  • 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