Patents Examined by Daniel Berns
  • Patent number: 11897840
    Abstract: The present application pertains to methods for making metal oxides and/or citric acid. In one embodiment, the application pertains to a process for producing calcium oxide, magnesium oxide, or both from a material comprising calcium and magnesium. The process may include reacting a material comprising calcium carbonate and magnesium carbonate. Separating, concentrating, and calcining may lead to the production of oxides such as calcium oxide or magnesium oxide. In other embodiments the application pertains to methods for producing an alkaline-earth oxide and a carboxylic acid from an alkaline earth cation-carboxylic acid anion salt. Such processes may include, for example, reacting an alkaline-earth cation-carboxylic acid anion salt with aqueous sulfur dioxide to produce aqueous alkaline-earth-bisulfite and aqueous carboxylic acid solution. Other useful steps may include desorbing, separating, and/or calcining.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: February 13, 2024
    Inventor: Ethan Novek
  • Patent number: 11884602
    Abstract: The invention comprises a method of sequestering carbon dioxide. The method comprises delivering hyaloclastite, a volcanic glass or pumice to a mill capable of reducing the particle size of the hyaloclastite, a volcanic glass or pumice; processing the hyaloclastite, a volcanic glass or pumice in the mill so that the processed hyaloclastite, a volcanic glass or pumice has a volume-based mean particle size of less than or equal to 40 ?m; and exposing the hyaloclastite, a volcanic glass or pumice to carbon dioxide in gaseous, liquid or solid form during or after the particle reduction process.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: January 30, 2024
    Inventor: Romeo Ilarian Ciuperca
  • Patent number: 11878269
    Abstract: A composition, process, and apparatus are disclosed. The composition includes a cyclopropeneimine-carbon dioxide (CPI-CO2) adduct. The process includes forming the CPI-CO2 adduct by reacting a CPI with CO2 gas. The apparatus includes components for providing the CPI and mixing the CPI with CO2 gas. The mixing results in formation of the CPI-CO2 adduct.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: January 23, 2024
    Assignees: International Business Machines Corporation, The Trustees of Columbia University in the City of New York
    Inventors: James L. Hedrick, Nathaniel H. Park, Luis M. Campos, Dino Wu, Daniel Malinowski
  • Patent number: 11873541
    Abstract: The present disclosure relates to a method for determining a source sink term of an ionic type rare earth ore leaching process. The method includes the following four steps: (1) determining an ion exchange selection coefficient of a rare earth ore sample; (2) determining the rare earth grade of the rare earth ore sample; (3) building a source sink term model of the ore leaching process; and (4) determining parameters in the source sink term model. The present disclosure can simulate the ionic type rare earth ore leaching process by combining a convection-dispersion equation, and determine the optimal concentration of the ore leaching agent. When an ammonium sulfate solution at an optimal concentration of 12.0 g/L is used to perform a column leaching test, the obtained rare earth leaching rate is up to 96.3 percent.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: January 16, 2024
    Inventors: Guanshi Wang, Ping Long, Shili Hu, Chenliang Peng, Lei Qin
  • Patent number: 11872519
    Abstract: Disclosed is a carbon dioxide absorbent and a carbon dioxide separation method using the same that greatly reduces energy consumption due to a small amount of latent heat required in regeneration of absorbents, enhances CO2 absorption rate, undergoes almost no thermal denaturation even at high temperatures while absorbing carbon dioxide, and results in a considerable reduction of the cost associated with absorption of carbon dioxide.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: January 16, 2024
    Inventors: Kwang Soon Lee, Hoon Sic Kim, Hui Yong Kim, Jung Hwan Kim, Sung June Hwang, Ja Yeop Kim, Shin Young Bae, Su Jin Na, Sang Do Park, Tae Sung Park, Yun Je Lee, Jong Kyun You
  • Patent number: 11857920
    Abstract: The disclosure provides seven integrated methods for the chemical sequestration of carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2) (collectively NOx, where x=1, 2) and sulfur dioxide (SO2) using closed loop technology. The methods recycle process reagents and mass balance consumable reagents that can be made using electrochemical separation of sodium chloride (NaCl) or potassium chloride (KCl). The technology applies to marine and terrestrial exhaust gas sources for CO2, NOx and SO2. The integrated technology combines compatible and green processes that capture and/or convert CO2, NOx and SO2 into compounds that enhance the environment, many with commercial value.
    Type: Grant
    Filed: May 21, 2022
    Date of Patent: January 2, 2024
    Inventor: Robert George Richardson
  • Patent number: 11850570
    Abstract: Supported amine polymer adsorbents based on polymers containing only or primarily primary amines sites are to be used as regenerable adsorbents for CO.sub.2 capture from ultra-dilute gas streams, such as ambient air, or from mixtures of gases containing preferably at least 10% oxygen. and can also be useful for use at the moderate gas pressures found in typical post-combustion capture processes, such as flue gas from large point sources such as coal-fired power plants. Preferred supported solid amine adsorbents of this invention are based on poly(allylamine) (“PAA”) and poly(vinyl amine) (“PVAm”), both of which are linear polymers, and their derivatives, containing substantially all primary amine groups, supported on substrates. Preferred such substrates include silica mesocellular foam (MCF) and mesoporous-.gamma.-alumina, as well on mesoporous-.gamma.-alumina coated throughout the pores of MCF, most preferably of monolithic structure.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: December 26, 2023
    Assignee: Georgia Tech Research Corporation
    Inventors: Ratayakorn Khunsupat, Christopher W. Jones, Sumit Bali
  • Patent number: 11850551
    Abstract: A method for treating sulfur contaminants is provided. The method comprises introducing a methylmorpholine-N-oxide solution to a vessel, wherein the vessel comprises a water layer and a gas layer, wherein the water layer and the gas layer comprise the hydrogen sulfide; introducing methylmorpholine-N-oxide into the water layer; and treating the water layer by allowing the methylmorpholine-N-oxide to react with the hydrogen sulfide.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: December 26, 2023
    Assignee: United Laboratories International, LLC
    Inventor: Stephen D. Matza
  • Patent number: 11851625
    Abstract: Methods are provided for reducing the quantity of acid gas reinjected into a reservoir by partial CO2 removal processes. The methods include acid gas removal, acid gas enrichment, generation of a CO2 rich stream and an H2S rich stream, and reinjection of the H2S rich stream into the reservoir. The acid gas enrichment can be performed by a solvent-based acid gas enrichment unit, a membrane-based acid gas enrichment unit, or a combination of a solvent-based acid gas enrichment unit a and membrane-based acid gas enrichment unit. The system includes an acid gas removal unit, one or more acid gas enrichment units, and an acid gas reinjection compressor. The acid gas enrichment unit can be a solvent-based acid gas enrichment unit, a membrane-based acid gas enrichment unit, or a solvent-based acid gas enrichment unit and a membrane-based acid gas enrichment unit.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: December 26, 2023
    Inventors: Milind Vaidya, Sebastien Duval, Feras Hamad, Ghulam Shabbir, Nasser Al-Aslai, Ahmad Bahamdan, Richard Baker, Tim Merkel, Kaaeid Lokhandwala
  • Patent number: 11845058
    Abstract: A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: December 19, 2023
    Inventors: Jeffrey R. Long, Thomas M. McDonald
  • Patent number: 11845038
    Abstract: Methods of reducing acid gas from a stream, comprising contacting the stream with a solvent system comprising a glycerol derivative are described herein. Disclosed herein is a composition comprising a glycerol derivative and an acid gas. A method for sweetening a natural gas stream comprising contacting a solvent system comprising a glycerol derivative with a natural gas stream is described herein.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: December 19, 2023
    Inventors: Jason E. Bara, Brian Flowers, Max Mittenthal
  • Patent number: 11840669
    Abstract: The present invention relates to a method for producing a hydrocarbon, including a step (Y) of converting a reaction product of at least one sulfur compound selected from the group consisting of hydrogen sulfide and a compound containing a —SH group which are contained in a hydrocarbon with an ?,?-unsaturated aldehyde compound into a water-soluble compound in the presence of water, and a step (Z) of separating oil and water.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: December 12, 2023
    Assignee: KURARAY CO., LTD.
    Inventors: Naoya Minamoto, Katsuji Ujita, Takuo Tsuruta
  • Patent number: 11833469
    Abstract: The present invention provides an integrated process for carbon dioxide capture, sequestration and utilisation, which comprises: a) providing an aqueous slurry comprising an aqueous liquid and a particulate solid comprising an activated magnesium silicate mineral; b) in a dissolution stage, contacting a CO2-containing gas stream with the aqueous slurry at a first pressure to dissolve magnesium from the mineral to provide a slurry comprising a magnesium ion enriched carbonated aqueous liquid and a magnesium depleted solid residue; and c) in a precipitation stage, precipitating magnesium carbonate from magnesium ions dissolved in step b) by multiple successive stage-wise reductions in pressure, with each stage being at a lower pressure than the preceding stage; wherein each successive stage-wise reduction in pressure releases CO2 which is correspondingly stage-wise compressed and recycled back into the dissolution stage.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 5, 2023
    Assignee: Mineral Carbonation International Pty Ltd
    Inventors: Emad Benhelal, Geoffrey Frederick Brent, Eric Miles Kennedy, Timothy Kenilworth Oliver, Mark Stuart Rayson, Michael Stockenhuber
  • Patent number: 11826719
    Abstract: Disclosed is an adsorbent containing a metal oxide for adsorption of hydrogen sulfide in biogas, and a biogas purification system using the same.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 28, 2023
    Assignee: Korea Institute of Energy Research
    Inventors: Il Hyun Baek, Sung Chan Nam
  • Patent number: 11813582
    Abstract: A resin includes a functionalized aminopolymer having amine sites for capturing carbon dioxide molecules, where each aminopolymer molecule has at least one functional group amenable to crosslinking, a porogen, and a crosslinking initiator. A product includes an aminopolymer material formed into a self-supporting structure, the aminopolymer material including crosslinked aminopolymers having amine sites for the capture of carbon dioxide molecules.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: November 14, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Simon Hoching Pang, Melinda Lia Wah Jue
  • Patent number: 11801472
    Abstract: Certain implementations of amine sweetening of flash gas are described. Flash gas including acid gas is flowed from a flash drum through a column section connected to the flash drum. A lean amine stream is flowed through the column section. The lean amine stream is configured to treat the acid gas flowed from the flash drum through the column section. A quantity of the lean amine stream flowed through the column section is controlled based, in part, on a rate at which the flash gas including the acid gas is flowed from the flash drum through the column section and a concentration of the acid gas in the flash gas.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 31, 2023
    Assignee: Saudi Arabian Oil Company
    Inventor: Nasser A. Al-Qahtani
  • Patent number: 11786860
    Abstract: The present invention relates to a biocompatible task specific hybrid solvent (TSHS) composition that synergistically increases the carbon capture efficiency and utilizes less energy for CO2 desorption over the existing solutions. Further, the process of synthesizing such composition is discussed in this disclosure. Also, the present disclosure provides a process that involves a task specific hybrid solvent (TSHS) composition for selective capturing CO2 from any gaseous stream.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: October 17, 2023
    Inventors: Prakash Chandra Sahoo, Manoj Kumar, Ravi Prakash Gupta, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
  • Patent number: 11779879
    Abstract: The present invention concerns the field of capturing the CO2 from a gaseous effluent. The incoming gaseous effluent is burned with a fuel, so as to obtain a hot gaseous effluent rich in acidic compounds, and the hot gaseous effluent rich in acidic compounds is cooled to give a cold effluent rich in acidic compounds, which is subsequently used in the step of contacting with an absorbent solution rich in acidic compounds.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: October 10, 2023
    Assignee: IFP Energies nouvelles
    Inventors: Florent Guillou, Berenice Moroy, Vania Santos-Moreau
  • Patent number: 11773017
    Abstract: A new integrated method to capture polluted CO2 using CaO produced from phosphogypsum calcination using sulfur as non-CO2 fuel where (1) both pollutants of phosphogypsum and CO2 are transformed into environmentally neutral or useful products such as limestone or clinker and sulfuric acid; (2) low-CO2 CaO produced from calcination of phosphogypsum with sulfur as fuel can be used to produce low-CO2 clinker that replaces the use of high-CO2 limestone as raw material; (3) the use of sulfur as fuel to calcine phosphogypsum allows the production of low-cost sulfuric acid.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: October 3, 2023
    Inventor: Malik Mohammad Odeh Aqel
  • Patent number: 11745137
    Abstract: Disclosed herein is a method and system for CO2 removal from a gas stream using a diamine solvent having a Formula I R1(R2)N-L1-NH—R3??Formula I. With respect to Formula I, each of R1 and R2 independently is aliphatic, cycloaliphatic, or R1 and R2 together with the nitrogen to which they are attached, form a heterocyclyl ring; L1 is aliphatic, cycloaliphatic, or L1 and R1 together with the nitrogen to which they are attached form a heterocyclyl ring; and R3 is aliphatic, cycloaliphatic, cycloalkylalkyl, or alkoxyalkyl. And/or the compound may have a viscosity of less than 75 cP at a CO2-loading of 40 mol % and at a temperature of 40° C.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: September 5, 2023
    Assignee: Battelle Memorial Institute
    Inventors: Deepika Malhotra, Phillip K. Koech, David J. Heldebrant, Vassiliki-Alexandra Glezakou, Roger J. Rousseau, Manh Thuong Nguyen, Robert Perry, Jordan P. Page, David C. Cantu