Treating Gas, Emulsion, Or Foam Patents (Class 435/266)
  • Patent number: 10300432
    Abstract: A system for producing an ion concentration gradient and a temperature-responsive electrolyte material which are utilizable, for example, for efficiently converting heat energy that has been discarded into reusable energy or for efficiently recovering an acid gas, such as carbon dioxide is provided. A temperature-responsive electrolyte is used to produce an ion concentration gradient by means of a temperature gradient. The temperature-responsive electrolyte is used in the state of an aqueous solution and also in the state of a solid phase.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 28, 2019
    Assignee: Kyushu University, National University Corporation
    Inventors: Yu Hoshino, Yoshiko Miura, Mengchen Yue, Kazushi Imamura
  • Patent number: 10273510
    Abstract: Described here is a method for increasing the transfer of a gas substrate in microbial fermentation, comprising incubating an emulsion comprising an oil phase and an aqueous phase droplet dispersed in the oil phase, and supplying the gas substrate to the oil phase, wherein the aqueous phase droplet comprises a microorganism, and wherein the emulsion is stabilized by a surfactant or an amphiphilic particle that is adsorbed to an interface of the oil phase and the aqueous phase. Also described is an emulsion for microbial fermentation, comprises an oil phase and an aqueous phase droplet dispersed in the oil phase, wherein the aqueous phase droplet comprises a microorganism, wherein the emulsion comprises a gas substrate externally-supplied to the oil phase, and wherein the emulsion is stabilized by a surfactant or an amphiphilic particle that is adsorbed to an interface of the oil phase and the aqueous phase.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 30, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Sindy Tang, Craig Criddle, Jaewook Myung, Minkyu Kim
  • Patent number: 10227612
    Abstract: A device for continuous dry methanation in a fermenter having a closed tank having at least one compartment to ferment the slurry comprising at least 17% dry matter. An injector to inject pressurized gas close to the bottom of the compartment via at least one chimney that descends through the compartment. The injected gas rising through the slurry creates a convective movement in the slurry around the chimney to stir the matter at the bottom of the compartment. The tank can include a first compartment into which the slurry is introduced and a second compartment into which the hydrolyzed slurry flows after hydrolysis and acidogenesis in the first compartment. Methanogenesis takes place in the second compartment.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: March 12, 2019
    Inventor: Michel Bonhomme
  • Patent number: 10226733
    Abstract: A formulation and process for capturing CO2 use an absorption mixture containing water, biocatalysts and a carbonate compound. The process includes contacting a CO2-containing gas with the absorption mixture to enable dissolution and transformation of CO2 into bicarbonate and hydrogen ions, thereby producing a CO2-depleted gas and an ion-rich solution, followed by subjecting the ion-rich solution to desorption. The biocatalyst improves absorption of the mixture comprising carbonate compounds and the carbonate compound promotes release of the bicarbonate ions from the ion-rich solution during desorption, producing a CO2 gas stream and an ion-depleted solution.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: March 12, 2019
    Assignee: CO2 SOLUTIONS INC.
    Inventors: Sylvie Fradette, Julie Gingras, Jonathan Carley, Glenn R. Kelly, Olivera Ceperkovic
  • Patent number: 10179883
    Abstract: Biogas containing H2S and CO2 is upgraded by removing H2S using PTSA and CO2 using two stages of gas separation membranes. The first stage permeate may optionally be used a regeneration gas stream. The second stage permeate may optionally be used a cool down gas stream. The PTSA unit includes two or more adsorbent beds each selective for water, VOCs, and H2S over CO2 and for H2S over methane.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: January 15, 2019
    Assignee: Air Liquide Advanced Technologies U.S. LLC
    Inventor: Michael J. Mitariten
  • Patent number: 10159932
    Abstract: A system for removing undesirable compounds from contaminated air includes a biofilter having porous glass media. Hydrogen sulfide is removed from contaminated air by passing the contaminated air through the biofilter.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: December 25, 2018
    Assignee: Evoqua Water Technologies LLC
    Inventor: Timothy Frank Matheis
  • Patent number: 10010832
    Abstract: The present invention relates to a novel membrane module for separating a fluid feed stream into a permeate stream and a retentate stream. The membrane module according to the invention is characterized in that all components are housed in a 20?, 40?, 45? HC, 45? PW or 53? HC container, whereby the membrane module can be transported and handled in a very simple and cost-effective manner despite its comparatively large volume and its high weight. The membrane module is furthermore characterized by its large membrane surface area compared with usually used membrane modules, whereby the number of individual membrane modules required in practical use can be reduced many times over. The present invention furthermore relates to a process for separating a fluid feed stream into a permeate stream and a retentate stream using the membrane module according to the invention.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 3, 2018
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum Fuer Material—und Kuestenforschung GmbH
    Inventors: Heiko Notzke, Torsten Brinkmann, Thorsten Wolff, Li Zhao, Sebastian Luhr
  • Patent number: 9862623
    Abstract: An electrolytic system for treating wastewater by electrocoagulation, electroflotation or a combination of both is disclosed. The electrolytic system comprises a first electrolytic reactor adapted for receiving the wastewater to be treated, the first electrolytic reactor comprising at least one cathode and at least one anode to perform a first electrolytic treatment for eliminating organic matter and calcium present in the wastewater that impact on nucleation of struvite; and a second electrolytic reactor downwardly connected to the first electrolytic reactor, the second electrolytic reactor comprising at least one cathode and at least one magnesium anode to perform a second electrolytic treatment for producing Mg2+ ions which react with NH4+ and orthophosphates from said wastewater to form a struvite precipitate. The electrolytic system allows eliminating simultaneously orthophosphate and ammonium from the wastewater while enabling the production of struvite.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: January 9, 2018
    Assignee: E2Metrix Inc.
    Inventor: Abderrazak Berrak
  • Patent number: 9861931
    Abstract: A method for recovering carbon dioxide from gas, which method includes the steps of: pressurizing gas, feeding pressurized gas and water used as a solvent to an absorption column to 3 to 10 bar absolute pressure, feeding water received from the absorption column and carbon dioxide absorbed therein to a desorption column for recovering carbon dioxide from the water, recirculating water exiting the desorption column to the absorption column, recovering carbon dioxide exiting the desorption column, feeding at least part of the gas to an auxiliary desorption column prior to pressurizing the gas, and sending water exiting the desorption column back to the auxiliary desorption column. The method also applies to a corresponding system.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: January 9, 2018
    Assignee: KAAKKOIS-SUOMEN AMMATTUKORKEAKOULU OY
    Inventors: Hannu Kuopanportti, Teijo Linnanen
  • Patent number: 9834792
    Abstract: Multi-stage, biological processes and systems for converting a C1 carbon source to desired end products are described. The processes comprise dividing a gaseous C1-containing substrate, in parallel, among multiple bioreactor stages. Liquid products are successively fed, in series, from a first bioreactor stage to downstream bioreactor stages. Operation can be simplified by avoiding the requirement for microorganism separation and recycle at each stage. In addition, overall vapor-liquid mass transfer for the combined stages is very favorable, leading to high end product productivity with comparably low byproduct metabolite productivity.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: December 5, 2017
    Assignee: LANZATECH NEW ZEALAND LIMITED
    Inventors: Simon Richard Trevethick, Jason Carl Bromley, Guy William Waters, Michael Koepke, Loan Phuong Tran, Rasmus Jensen Overgaard
  • Patent number: 9644176
    Abstract: A photobioreactor has an optical waveguide formed at least in part from a highly scattering optically transmitting polymer. The optical waveguide has a light distributing part immersed in a container holding photoactive biological material and a light collecting part outside the container.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: May 9, 2017
    Assignee: KELLOGG BROWN & ROOT LLC
    Inventor: Garry Henderson
  • Patent number: 9631154
    Abstract: A multi-stage process for recovering acid gas from natural gas having high acid gas contents utilizes two or more membrane absorption contactors arranged in series. The first membrane absorption contactor uses a physical solvent to remove a high volume of acid gas transferred across a membrane, and to reduce the acid gas content in the natural gas to a lower level that can be managed using chemical solvents. The second and, if needed, subsequent membrane absorption contactors can use a chemical solvent to remove acid gas transferred across the respective membranes and reduce the acid gas content in the natural gas to very low levels, if needed, depending on product specifications.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: April 25, 2017
    Assignee: Gas Technology Institute
    Inventors: Shaojun Zhou, Howard S. Meyer
  • Patent number: 9598288
    Abstract: Method for preparing zinc-histidine self-assembly biomimetic complex activating reaction to convert carbon dioxide into bicarbonate ion, zinc-histidine self-assembly biomimetic complex by preparation method, and method for reducing carbon dioxide using zinc-histidine self-assembly biomimetic complex.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: March 21, 2017
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY
    Inventors: Sang-Yup Lee, Min-Chul Kim, Yu-Kyoung Lee, Sunhyung Kim, Jinyoung Kwak, Youngjoon Lim, Sangwoo Park
  • Patent number: 9462757
    Abstract: Biomass production apparatus is disclosed and comprises a stack of trays, each tray, in use, being in receipt of a respective layer of liquid, the layers being spaced apart from one another such that each layer has associated therewith a respective headspace. Light sources are provided for each layer and are disposed in the headspace associated with said each layer, to illuminate, at least in part, said each layer.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: October 11, 2016
    Assignee: ALGAE DYNAMICS CORP.
    Inventor: Richard J. Rusiniak
  • Patent number: 9382120
    Abstract: A system for capturing and storing carbon dioxide. The CO2 sequestration system may include one or more sub-systems for generating electricity, a heat exchange system which may regulate temperature, and a conversion tank. The conversion tank may contain water with dissolved compounds and a catalyst. Carbon dioxide may be converted into carbonate minerals and drawn off to be used in any of a variety of applications.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: July 5, 2016
    Inventor: Farouk Dakhil
  • Patent number: 9150777
    Abstract: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of an internal breaker composition that contains at least one mineral oil, at least one polyalphaolefin oil, at least one saturated fatty acid and/or at least one unsaturated fatty acid. The internal breaker may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. In one non-limiting embodiment, the internal breaker, e.g. mineral oil, is added to the fluid after it has been substantially gelled. An oil-soluble surfactant is present to enhance or accelerate the reduction of viscosity of the gelled aqueous fluid.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 6, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: James B. Crews, Tianping Huang
  • Patent number: 9072995
    Abstract: A biofilter (1) having filter media (7) in a stowage space (5) having sidewalls and a bottom, inlet opening (15) for the unpurified gases/air and the stowage space (5) is made of flexible gas-tight material filled at least partly with the filter media (7). A biofilter system having two or more biofilters (1) is also described.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: July 7, 2015
    Inventor: Matti Mallinen
  • Publication number: 20150140643
    Abstract: A biological odor control system includes a vessel and a nutrient tank mounted and attached to an outer surface of the vessel such that the nutrient tank does not extend into a housing of the vessel. The vessel can include a housing, a gas inlet, a gas outlet, a first media bed positioned within the housing of the vessel, and an irrigation system adapted to provide moisture, nutrients, and/or mixtures thereof to the first media bed within the housing of the vessel. A vessel and method for treating odorous gas are also disclosed.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventor: Roop C. Jain
  • Patent number: 9029121
    Abstract: A method for the biological decomposition of organic compounds of the group of hydrocarbons, fats, oils, waxes, and derivatives thereof as well as mixtures thereof in media polluted therewith, in the presence of at least one dispersant, wherein the medium polluted with the pollutants is treated with at least one dispersant and with microorganisms.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 12, 2015
    Assignee: Total Marketing Services
    Inventors: Ursula Fritzmeier, Robert Mallee, Achim Wiessler
  • Patent number: 9018266
    Abstract: Provided is a defoamer for fermentation which has excellent dispersibility in water and forms neither a precipitate nor oil droplets when the dispersion is heated, and which is highly effective in defoaming fermentation media. This defoamer contains a reaction product obtained by mixing a fat or oil having an iodine value of 40 to 130 with glycerin or like in a molar ratio of from 3/2 to 1/2 to obtain a mixture, causing 4 to 17 mol of propylene oxide to add to 1 mol of the mixture, and then causing 20 to 40 mol of ethylene oxide and 70 to 110 mol of propylene oxide to block-wise add thereto in this order, the reaction product having an ethylene oxide/propylene oxide molar ratio of from 1/4 to 2/5.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: April 28, 2015
    Assignee: NOF Corporation
    Inventors: Satoko Matani, Susumu Tanaka
  • Publication number: 20150104857
    Abstract: The present invention relates to air purification. The present invention provides a system for reducing carbon dioxide concentration in air in locations with sub-tropical to temperate climates and method of reducing carbon dioxide concentration using the system.
    Type: Application
    Filed: October 12, 2014
    Publication date: April 16, 2015
    Inventors: Di ZHANG, Yeuk Tin LAU, Ka Yip FUNG, Ka Ming NG
  • Publication number: 20150099289
    Abstract: The present invention generally relates to carbonic anhydrase xerogel particles comprising a polysilicate-polysilicone copolymer and carbonic anhydrase. The carbonic anhydrase xerogel particles can be used for carbon dioxide capture.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 9, 2015
    Inventors: Tracy L. Bucholz, Aleksey Zaks, Dawn Powell, Luke Weber, Matthew Hulvey, John Reardon, Brett Rambo
  • Patent number: 8969067
    Abstract: There is provided a process of growing a phototrophic biomass in a reaction zone. Gaseous exhaust material is produced with a gaseous exhaust material producing process, wherein the gaseous exhaust material includes carbon dioxide. A discharge of the gaseous exhaust material is supplied to the reaction zone and is modulated. A bypass gaseous exhaust material, being supplied to another unit operation, is also modulated.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 3, 2015
    Assignee: Pond Biofuels Inc.
    Inventors: Steven C. Martin, Max Kolesnik, Jaime A. Gonzalez
  • Publication number: 20150050712
    Abstract: The present invention generally relates to improvements in enzyme immobilization, particularly for use in the field of carbon dioxide capture and sequestering. It has been discovered that the utilization of sol-gel processes to immobilize enzymes in polysilicate-polysilicone copolymer coatings and particles, and the deposition of these coatings on solid state supports or use of suspensions of these particles, provides significant benefits for use in industrial applications involving enzymatic catalysts.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 19, 2015
    Inventors: Brett M. Rambo, Tracy L. Bucholz, Dawn C. Powell, Luke E. Weber, Alexander J. Linder, Caroline M.H. Duesing, Aleksey Zaks
  • Patent number: 8956854
    Abstract: A zero-discharge landfill process is disclosed herein. The process described in the present invention recycles the exhaust gases from a combustion engine which reheats the landfill and provides moisture. Additionally, the CO2 from the exhaust gases releases additional methane. Methane production in landfills can thus be enhanced by the method of the present invention. Furthermore, a portion of the exhaust gas can be used to cultivate algae in a cultivation tank. The cultivation of the algal species is enhanced in the presence of water, CO2, CO, and the elevated temperatures. Optionally, a first portion of the cultivated algae can be passed through the landfill to increase methane production in the landfill and a second portion of the cultivated algae can be transferred to a biodiesel production tank, for the conversion of the one or more algal oils and lipids to a biodiesel or a biofuel by a transesterification reaction.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: February 17, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Russell R. Chianelli, Xiomara Carolina Chianelli
  • Publication number: 20150044757
    Abstract: Methods and systems for capturing and storing carbon dioxide are disclosed. In some embodiments, the methods include the following: mixing materials including magnesium or calcium with one or more acids and chelating agents to form a magnesium or calcium-rich solvent; using the organic acids derived from biogenic wastes as acids or chelating agents; generating carbonate ions by reacting a gas including carbon dioxide with a carbonic anhydrase biocatalyst; reacting the solvent with the carbonate ions to form magnesium or calcium carbonates; recycling a solution containing the biocatalyst after forming magnesium or calcium carbonates for re-use in the generating step; using the magnesium and calcium carbonates as carbon neutral filler materials and using the silica product as green filler materials or inexpensive absorbents.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 12, 2015
    Inventors: Ah-Hyung Alissa Park, Edward J. Swanson, Huangjing Zhao, Greeshma Gadikota, Patrick V. Brady, Tushar Patel, Scott Banta
  • Patent number: 8945248
    Abstract: Biomass gasification systems including a biofilter assembly adapted to be disposed within a filter unit of a biomass gasification system are provided. The biofilter assemblies may be adapted to filter particulate matter from a producer gas flowing through the filter unit while allowing a remainder of the producer gas to pass through the biofilter assembly. The biofilter assembly may include a support structure and a biofilter disposed on the support structure and including a biomaterial adapted to be gasified in a biomass gasification reactor of the biomass gasification system.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: February 3, 2015
    Assignee: General Electric Company
    Inventors: Omprakash Mall, Amol Mahulkar
  • Patent number: 8932847
    Abstract: A bioreactor designed to produce N2O from organic nitrogen and/or reactive nitrogen in waste is coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical reaction, e.g., catalytic decomposition to form oxygen and nitrogen gas. Heat from the exothermic reaction may be used to generate power. The bioreactor may use communities of autotrophic microorganisms such as those capable of nitrifier denitrification, ammonia oxidizing bacteria, and/or ammonia oxidizing archaea. A portion of the N2O dissolved in aqueous effluent from the bioreactor may be separated to increase the amount of gas phase N2O product. The amount of the gas phase N2O in a gas stream may also be concentrated prior to undergoing the chemical reaction. The N2O may alternatively be used as an oxidant or co-oxidant in a combustion reaction, e.g., in the combustion of methane.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: January 13, 2015
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Brian J. Cantwell, Craig S. Criddle, Kevin Lohner, Yaniv D. Scherson, George F. Wells
  • Patent number: 8932849
    Abstract: A method to produce N2O from organic nitrogen and/or reactive nitrogen in waste uses a bioreactor coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical reaction, e.g., catalytic decomposition to form oxygen and nitrogen gas. Heat from the exothermic reaction may be used to generate power. The N2O may alternatively be used as an oxidant or co-oxidant in a combustion reaction, e.g., in the combustion of methane.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: January 13, 2015
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yaniv D. Scherson, Brian J. Cantwell, Craig S. Criddle
  • Patent number: 8932848
    Abstract: A bioreactor designed to produce N2O from organic nitrogen and/or reactive nitrogen in waste is coupled to a hardware reactor device in which the N2O is consumed in a gas phase chemical reaction, e.g., catalytic decomposition to form oxygen and nitrogen gas. Heat from the exothermic reaction may be used to generate power. The N2O may alternatively be used as an oxidant or co-oxidant in a combustion reaction, e.g., in the combustion of methane. The bioreactor may have various designs including a two-stage bioreactor, a hollow-fiber membrane bioreactor, or a sequencing batch reactor. The bioreactor may involve Fe(II)-mediated reduction of nitrite to nitrous oxide.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 13, 2015
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Brian J. Cantwell, Craig S. Criddle, Yaniv D. Scherson, George F. Wells, Xing Xie, Koshlan Mayer-Blackwell
  • Publication number: 20140377814
    Abstract: The present invention relates to a method for biologically treating carbon dioxide using the sulfur-oxidizing chemolithoautotroph Sulfurovum lithotrophicum 42BKT. The method of the present invention may enable carbon dioxide to be fixed or converted in high-concentration and high-pressure conditions which do not allow the biological photosynthetic conversion of microalgae or the like, and may exhibit high efficiency in the fixation of carbon dioxide as compared to existing methods for biologically treating carbon dioxide using microalgae. Further, the method of the present invention may use a gas mixture without a process of separating nitrogen and other gases, thus simplifying the process of the fixation or conversion of carbon diode.
    Type: Application
    Filed: September 20, 2012
    Publication date: December 25, 2014
    Inventors: Chang Ha Lee, Ik Sung Ahn, Hyuk Sung Kwon, Jae Hyuk Lee
  • Publication number: 20140370578
    Abstract: A process of removing SO2 from a flue gas with a trickling filter using modified ceramsite packing is described. The biological flue gas desulfurization process includes: feeding the flue gas containing sulfur dioxide through the column bottom into the biomembrane trickling filter at certain temperature, contacting with the modified ceramsite biomembrane packing and purifying, which purified flue gas is discharged via the column top; and spraying the nutrient fluid rich in high concentration of the desulfurization strain through the top to the modified ceramsite biomembrane packing, thereby the sulfur-bearing pollution source in the flue gas is degraded, so as to discharge a purified flue gas satisfying the environmental requirements.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF NANJING CHEMICAL INDUSTRIAL GROUP
    Inventors: Aixiang HAO, Songbai Mao, Jing Kong
  • Publication number: 20140370576
    Abstract: Disclosed is a method for removing carbon dioxide from a gas stream, comprising placing the gas stream in contact with a resin, wetting the resin with water, collecting water vapor and carbon dioxide from the resin, and separating the carbon dioxide from the water vapor. The resin may be placed in a chamber or a plurality of chambers connected in series wherein the first chamber contains resin that was first contacted by the gas, and each successive chamber contains resin which has been wetted and carbon dioxide collected from for a greater period of time than the previous chamber, and so on, until the last chamber. Secondary sorbents may be employed to further separate the carbon dioxide from the water vapor.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 18, 2014
    Applicant: Kilimanjaro Energy, Inc.
    Inventors: Allen B. Wright, Klaus S. Lackner, Ed Leon-Guerrero, Ursula Ginster, Tymothy Catterson, Karl Madison, Ryuhei Ishikawa, George W. Grimm, Mark Malcomson, Ping Liu
  • Publication number: 20140370577
    Abstract: Implementations disclosed herein provide a scrubber system for the reduction and removal of acid gas from a gas stream. The scrubber system includes a dry chemical scrubber having an amount of bacteria therein. A gas stream containing an acid gas contaminant such as H2S is directed into and treated by the dry chemical scrubber; both media within the scrubber system and bacteria reduce the level of acid gas contaminant in the gas stream. In some implementations, the bacteria is carried over from a biological scrubber fluidly connected upstream of the dry chemical scrubber. The pH of the gas stream from the biological scrubber may be regulated prior to passing into the dry chemical scrubber.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Inventors: John Jenkins, Thomas A. Jones, Paul Bertram Trost, Frederick T. Varani, Aaron F. Primmer, Nathan A. Emsick
  • Patent number: 8895280
    Abstract: The present invention generally relates to improvements in enzyme immobilization, particularly for use in the field of carbon dioxide capture and sequestering. It has been discovered that the utilization of sol-gel processes to immobilize enzymes in polysilicate-polysilicone copolymer coatings and particles, and the deposition of these coatings on solid state supports or use of suspensions of these particles, provides significant benefits for use in industrial applications involving enzymatic catalysts.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 25, 2014
    Assignee: Akermin, Inc.
    Inventors: Brett M. Rambo, Tracy L. Bucholz, Dawn C. Powell, Luke E. Weber, Alexander J. Linder, Caroline M. H. Duesing, Aleksey Zaks
  • Publication number: 20140329299
    Abstract: A method for removing carbon dioxide from methane-containing crude gases, especially biogas, by pressure scrubbing, using a physical solvent, includes circulating the contaminated scrubbing solution after regeneration. A plant suitable for carrying out the method considerably reduces the methane loss which arises through methane slippage and improves the overall energy balance of the method. Laden scrubbing solution obtained from the pressure scrubbing is treated at least in one flash stage before the first stripping stage. In addition, a nitrogen, oxygen, carbon dioxide and methane-containing gas mixture drawn off from the flash stage is cleaned in a scrubbing stage by purified scrubbing solution drawn off from the second stripping stage and supplied in countercurrent, forming a high-purity methane gas.
    Type: Application
    Filed: December 16, 2011
    Publication date: November 6, 2014
    Inventor: Lothar Guenther
  • Patent number: 8871485
    Abstract: Disclosed herein are modified carbonic anhydrase enzymes, and a process of using same for the extraction, production and purification of carbon dioxide gas. More particularly, modified carbonic anhydrase enzymes are used for the production, purification of carbon dioxide and the products of the hydration reaction, hydrogen and bicarbonate ions Also, this technology is used to enhance the production of carbon dioxide in blood or in reverse osmosis desalination to remove carbon dioxide. Specifically, the invention relates to a modified carbonic anhydrase enzyme possessing improved activity and a process whereby immobilized modified carbonic anhydrase contained within a reactor device catalyzes the reversible hydration of carbon dioxide.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: October 28, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Robert McKenna, David N. Silverman
  • Patent number: 8865453
    Abstract: Biochemical decomposition of undesirable gaseous contaminants, including nitrogen oxides, VOC's, carbon monoxide and sulfur oxides, and malodorous contaminants, is achieved by passing a gas stream through a managed landfill providing microbiological activity capable of degrading the contaminants. Gases suitable for treatment include fuel combustor exhaust, landfill gases, putrescent gases and the like. The landfill functions as a biological reactor (bioreactor), where water is added if or as necessary to achieve concentrations between about 20% and about 65% by weight, and desired microbial contaminant abatement action. By a permeation of the polluted gas through the landfill, there is a consumption of polluting gases by microorganisms present in the landfill. The process enables increased combustion of fuels, such as landfill gases, whose energy values are currently wasted or are not available due to emissions problems.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: October 21, 2014
    Assignee: Intititute For Environmental Management
    Inventor: Don C. Augenstein
  • Publication number: 20140295531
    Abstract: The invention relates to the field of reduction of CO2 emission, more in particular to CO2 capture and conversion. The invention further relates to the culturing of algae. One object of the present invention is to provide an alternative method for capturing and conversion of CO2 from a gaseous stream.
    Type: Application
    Filed: August 10, 2012
    Publication date: October 2, 2014
    Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Earl Lawrence Vincent Goetheer, Peter Geerdink, Ikenna Sunday Ngene, Leo Jacques Pierre Van Den Broeke
  • Patent number: 8846381
    Abstract: A biogas desulfurization device comprises an anaerobic system, a desulfurization liquid circulating system, an oxygen supply device and a desulfurization system, wherein the anaerobic system is used for generating biogas and filling the generated biogas into the desulfurization system, the desulfurization liquid circulating system is used for filling the desulfurization liquid into the desulfurization system and recycling the desulfurization liquid that has undergone the desulfurization operation, the oxygen supply device is used for filling air into the desulfurization system, and the desulfurization system which comprises at least one stage desulfurization tower group is used for carrying out the desulfurization operation on the biogas from the anaerobic system, the desulfurization operation is conducted by the desulfurization liquid received from the desulfurization liquid circulating system in an aerobic environment.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: September 30, 2014
    Assignee: Beijing Helee Bio-Energy Technology Co., Ltd.
    Inventor: Wenzhi Pan
  • Patent number: 8846377
    Abstract: A process for capturing CO2 includes contacting a CO2-containing gas with an absorption mixture optionally within a packed reactor is provided. The absorption mixture includes a liquid solution and micro-particles. The micro-particles include a support material and biocatalyst supported by the support material and are sized and provided in a concentration such that the absorption mixture flows through the packed reactor and that the micro-particles are carried with the liquid solution to promote dissolution and transformation of CO2 into bicarbonate and hydrogen ions. The absorption mixture and micro-particles may be provided in an absorption reactor so as to be pumpable. Furthermore, a process for desorbing CO2 gas from an ion-rich aqueous mixture includes providing biocatalytic micro-particles and feeding the mixture to a desorption reactor, to promote transformation of the bicarbonate and hydrogen ions into CO2 gas and water.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: September 30, 2014
    Assignee: CO2 Solutions Inc.
    Inventors: Sylvie Fradette, Julie Gingras, Normand Voyer, Jonathan Carley, Glenn R. Kelly, Olivera Ceperkovic
  • Publication number: 20140256022
    Abstract: A photobioreactor having an optical waveguide formed at least in part from highly scattering optically transmitting polymer. The optical waveguide has a light distributing part immersed in a container holding photoactive biological material and a light collecting part outside the container.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 11, 2014
    Inventor: Garry Henderson
  • Publication number: 20140256026
    Abstract: Several embodiments of the invention relate generally to a system and methods for the treatment of gaseous emissions comprising methane and one or more non-methane compounds that can influence the metabolism of methane-oxidizing microorganisms. In several embodiments, there is provided a system and methods for the treatment of methane emissions through the use of methanotrophic microorganisms to generate functionally consistent and harvestable products. Certain embodiments of the invention are particularly advantageous because they reduce environmentally-destructive methane emissions and produce harvestable end-products.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: NEWLIGHT TECHNOLOGIES, LLC
    Inventors: Markus Donald Herrema, Kenton Kimmel
  • Publication number: 20140242680
    Abstract: Methods and systems for removing volatile organic compounds from spent air are provided. The method can include oxidizing cumene in the presence of an oxidant to produce an oxidized product containing methanol and a spent air, separating the spent air from the oxidized product, contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air, and contacting the first purified air with a biological material to produce a treated air.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventor: Eric Wing-Tak WONG
  • Publication number: 20140234946
    Abstract: Aspects of the invention include methods of removing carbon dioxide (CO2) from a CO2 containing gas. In some instances, the methods include contacting CO2 containing gas with a bicarbonate buffered aqueous medium under conditions sufficient to produce a bicarbonate rich product. Where desired, the resultant bicarbonate rich product or a component thereof may then be stored or further processed, e.g., combined with a divalent alkaline earth metal cation, under conditions sufficient to produce a solid carbonate composition. Aspects of the invention further include systems for practicing the methods, as well as products produced by the methods.
    Type: Application
    Filed: September 4, 2013
    Publication date: August 21, 2014
    Applicant: BLUE PLANET, LTD.
    Inventors: Brent Richard Constantz, Mark Bewernitz, Jacob Schneider, Chris Camire
  • Publication number: 20140199639
    Abstract: There is provided a process for growing a phototrophic biomass in a reaction zone, wherein the reaction zone includes a reaction mixture that is operative for effecting photosynthesis upon exposure to photosynthetically active light radiation, wherein the reaction mixture includes phototrophic biomass that is operative for growth within the reaction zone. The process includes supplying at least a fraction of gaseous exhaust material, being discharged from an industrial process, to the reaction zone, exposing the reaction mixture to photosynthetically active light radiation and effecting growth of the phototrophic biomass in the reaction zone, wherein the effected growth includes growth effected by photosynthesis, and modulating distribution of a molar rate of supply of carbon dioxide, being exhausted from the reaction zone, as between a smokestack and at least another point of discharge.
    Type: Application
    Filed: March 14, 2013
    Publication date: July 17, 2014
    Applicant: Pond Biofuels Inc.
    Inventors: Jaime A. Gonzalez, Steven C. Martin, Max Kolesnik
  • Patent number: 8778661
    Abstract: A biological composite and method for reducing H2S are disclosed. The biological composite for reducing H2S includes a carrier and Thermus sp. immobilized on the carrier. Therefore, if a sample containing H2S has contact with Thermus sp. or the carrier with Thermus sp. immobilized thereon, the amount of H2S can be reduced.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: July 15, 2014
    Assignee: National Chiao Tung University
    Inventors: Ching-Ping Tseng, Yu-Pei Chen
  • Patent number: 8772015
    Abstract: A biofilter media has one or more of a set of desired physical characteristics. The set of physical characteristics includes a sphericity of 0.75 to 1, a particle size of 1 to 16 or 4 to 8 mm, a uniformity coefficient of 2 or less and a surface area of 800 to 2000 m2/m3 of media. The media is coated, supports microorganisms and is used to treat a waste gas stream.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: July 8, 2014
    Assignee: Biorem Technologies Inc.
    Inventors: Hidayat Husain, Brian P. Herner
  • Patent number: 8765451
    Abstract: The present invention provides a method of treating an off-gas stream (80) comprising NH3 and H2S to provide a sulphate stream (910), the method comprising the steps of: (i) providing a first off-gas stream (80) comprising NH3, H2S, CO2 and optionally one or more of HCN, COS and CS2; (ii) passing the first off-gas stream (80) to an incinerator (300) to oxidize NH3, H2S, and optionally one or more of HCN, COS and CS2 to provide a second off-gas stream (310) comprising N2, H2O, SO2 and CO2; (iii) scrubbing the second off-gas stream (310) with a first aqueous alkaline stream (380, 876a) in a caustic scrubber (350) to separate SO2 and a part of the CO2 from the second off-gas stream to provide a spent caustic stream (360) comprising carbonate and one or both of sulphite and bisulphite and a caustic scrubber off-gas stream (370) comprising N2 and CO2; and (iv) passing the spent caustic stream (360) to an aerator (900) comprising sulphur-oxidizing bacteria in the presence of oxygen to biologically oxidize sulphite
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: July 1, 2014
    Assignee: Shell Oil Company
    Inventor: Sandra Schreuder
  • Publication number: 20140178961
    Abstract: The present invention relates to a construct for accomplishing fixation of carbon dioxide and/or reduction of carbon dioxide emission in a heterotrophic microorganism (for example, a heterotrophic fermentation strain, such as E. coli), a vector comprising the construct, a heterotrophic microorganism (for example, a heterotrophic fermentation strain, such as E. coli) comprising the construct or being transformed with the vector, and a method for fixing carbon dioxide and/or reducing carbon dioxide emission in a heterotrophic microorganism (for example, a heterotrophic fermentation strain, such as E. coli).
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: SHELL OIL COMPANY
    Inventors: Xuefeng LU, Liu YANG, Zhengxu GAO, Xiaoming TAN