Abstract: Methods and apparatus for capturing carbon dioxide from ambient air and delivering said carbon dioxide to an enclosed environment are described. In general, the methods and apparatus comprise contacting a packed bed or fluidized bed device with a stream of ambient air, wherein the packed bed or fluidized bed device comprises a humidity-sensitive sorbent material that adsorbs carbon dioxide from the ambient air; contacting the packed bed or fluidized bed device with a stream of humid air to release the adsorbed carbon dioxide; delivering the released carbon dioxide to an enclosed environment; and optionally, repeating the steps of contacting the packed bed or fluidized bed device with ambient air and humid air in an alternating fashion.
Type:
Grant
Filed:
August 12, 2020
Date of Patent:
August 29, 2023
Inventors:
Alain L. Bourhis, David K. Steckler, Raffaella Sordella, Frank O'Keefe
Abstract: The present invention relates to a material and process for producing water- and oxygen-free halogen salts of an alkali metal or alkaline earth metal, or of a transition metal, or of a metal of groups 13 or 14 of the Periodic Table, in which at least one halogen salt is heated with a heating rate of from 0.2 K/min to 30 K/min, especially from 1.0 K/min to 10 K/min, proceeding from room temperature.
Type:
Grant
Filed:
November 17, 2016
Date of Patent:
August 29, 2023
Assignee:
DEUTSCHES ZENTRUM FÜR LUFT-UND RAUMFAHRT E.V.
Abstract: One or more embodiments relates to method for generating CHEFS having the steps of generating the CHEFS from a dope. One or more embodiments relates to a method for generating CHEFS having amine functional groups having the steps of generating a dope containing a BIAS with amine groups, at least one polymer, and at least one solvent; and forming CHEFS from the dope, wherein the generated CHEFS have no more than 30% amine loss compared to the BIAS.
Type:
Grant
Filed:
April 30, 2021
Date of Patent:
August 29, 2023
Assignee:
United States Department of Energy
Inventors:
McMahan L. Gray, Fan Shi, Shouliang Yi, Walter Chris Wilfong, Qiuming Wang
Abstract: Porous materials (such as organic polyamine cage compounds) and methods of stabilising porous materials which are otherwise prone to pore-collapse are described. Such stabilisation is accomplished through the use of molecular ties to create bridges between reactive groups of a (potentially) porous material to thereby strengthen and stabilise the porous structure. The chemistry involved in, and the results of, the stabilisation of porous materials to provide a new sorption composition comprising the very materials which are generally prone to pore-collapse are also described.
Abstract: The present invention provides a novel method for producing hydrogen fluoride which can suppress the occurrence of the pasty state over the whole process of producing hydrogen fluoride, reduce the problem of corrosion caused by sulfuric acid, and improve energy efficiency of the process. A method for producing hydrogen fluoride by reacting calcium fluoride and sulfuric acid comprises: (a) mixing and reacting calcium fluoride and sulfuric acid such that a mixture comprising calcium fluoride particles and sulfuric acid substantially maintains a form of particulate to obtain hydrogen fluoride while supplying sulfuric acid to the calcium fluoride particles at a flow rate of 0.002 to 1 mol/min relative to 1 mol of calcium fluoride to such an amount that a molar ratio of sulfuric acid/calcium fluoride is 0.9 to 1.1.
Abstract: An article for generating chlorine dioxide includes a canister containing a chlorine-dioxide generating composition. The articles in accordance with the invention are able to generate chlorine-dioxide gas, chlorine-dioxide solution, and chlorine-dioxide solution with surfactants. The canister includes at least one porous region that places an exterior of the canister in fluidic communication with an interior of the canister. The porous region, which in some embodiments, is realized as a mesh, is characterized by a size in a range of about 20 mesh to about 325 mesh.
Abstract: A system and method for inerting a fuel tank is disclosed. A fluid including non-condensable gas is directed from a vapor space in the fuel tank to a suction port of an ejector, and a motive fluid is directed to a motive fluid port of the ejector. The motive fluid and the non-condensable gas fluid are combined in the ejector and are directed from an outlet port of the ejector to the fuel tank. An inert gas is provided to the ejector motive fluid port, or to the second flow path, or to the first flow path.
Abstract: An efficient photocatalyst nanocomposite comprising reduced graphene oxide, noble metal, and a metal oxide prepared by a one-step method that utilizes date seed extract as a reducing and nanoparticle determining size agent. The photocatalyst of the invention is a more effective sunlight photocatalyst than that prepared by traditional method in the photo decomposition of organic compounds in contaminated water.
Type:
Grant
Filed:
March 22, 2022
Date of Patent:
July 25, 2023
Assignee:
Imam Abdulrahman Bin Faisal University
Inventors:
Nuhad Abdullah Alomair, Hanan Hussein Amin Mohamed
Abstract: A potassium hexafluoromanganate (K2MnF6) composition includes no more than six parts per million of each of one or more Group 13 elements, no more than 520 parts per million of one or more alkaline earth metals, no more than fourteen parts per million of one or more transition metals, and/or no more than forty parts per million of calcium. A method for providing this composition, as well as lighting apparatuses, backlight units, and electronic devices including phosphors formed from the composition also are provided.
Type:
Grant
Filed:
August 19, 2016
Date of Patent:
July 18, 2023
Assignee:
CURRENT LIGHTING SOLUTIONS, LLC
Inventors:
William Winder Beers, James E. Murphy, John Matthew Root
Abstract: A method and a plant for capturing CO2 from an incoming flue gas. The flue gas can be exhaust gas from coal and gas fired power plants, cement factories or refineries. The incoming exhaust gas is cooled, mixed with air and compressed, and thereafter introduced into a combustion chamber together with gas and/or liquid fuel. Part of the combustion is achieved by separate burners with cooling/combustion air feed with a volume equal to the volume of CO2 captured. Said burners will elevate the temperature in the combustion chamber allowing combustion of exhaust gas with low oxygen content. CO2 is captured at high partial pressure before expansion by the gas turbine to produce power and generate steam in the heat recovery unit. The gas turbine will operate with high efficiency close to design parameters with respect to inlet temperature, pressure and flow.
Abstract: The invention relates to a process for the recovery and recycling of the iodine from aqueous solutions comprising iodine-comprising aromatic compounds in which the iodine contained in said aromatic compounds is directly converted into molecular iodine at a pH lower than 1, in the absence of a catalyst.
Type:
Grant
Filed:
June 7, 2018
Date of Patent:
July 4, 2023
Assignee:
BRACCO IMAGING SPA
Inventors:
Laura Galimberti, Andrea Banin, Sonia Gazzetto, Fernanda Di Giorgio, Roberta Fretta
Abstract: A total recycling system of capture, conversion and utilization of flue gas from factory, power plant and refinery. A combined decontamination and dust removal unit removes dust and oxides; a capture subsystem captures CO2; a water unit recovers water; a hydrogen unit decomposes water into hydrogen and oxygen, and the oxygen is fed into a water gas unit to support combustion and extract hydrogen; a conversion subsystem enables a catalytic reaction between CO2 and hydrogen to convert into methanol and diol; an utilization subsystem makes a supercritical CO2 nanocellulose slurry, then to be blended with other material particles and extruded to form a supercritical CO2 nanocellulose foam; an energy subsystem is configured with solar energy, wind energy, and supplements energy by means of residual heat and hydrogen power generation; the system achieve carbon dioxide emission's reduction, conversion and utilization, thoroughly improve air pollution and green house effects.
Abstract: Disclosed are a carbon dioxide absorbent composition in which an N-alkylaminoalkanol; a polyhydroxyamine-based compound; and ethylenediamine and/or diethylenetriamine are mixed, a method for preparing the same, and a method and an apparatus for carbon dioxide absorption/separation using the same. Since the carbon dioxide absorbent according to the present disclosure has superior carbon dioxide absorption capacity and remarkably lower absorbent recycling temperature as compared to the existing absorbents such as monoethanolamine, etc., total energy consumption in the capturing process can be reduced greatly. In addition, since carbon dioxide is recovered at low recycling temperature, contamination by water or absorbent vapor may be prevented.
Type:
Grant
Filed:
February 15, 2021
Date of Patent:
June 6, 2023
Assignees:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, KOREA LAND & HOUSING CORPORATION
Inventors:
In Wook Nah, Jae Ik Kim, Soon Jong Kwak, In Hwan Oh, Daeseung Kyung, Youngjong Sim, Yeongmin Kim, Han-Guen Ahn, Sang-Ick Choi
Abstract: A method and apparatus for purifying gas where gas is treated in a multistage treatment having at least two ejector stages, a motive medium including liquid, steam or gaseous agent at high pressure injected by an ejector of the ejector stage, and the gas is sucked into the same ejector and mixed with the motive medium for forming a mixture, at least a part of gas and/or liquid phase of the mixture is supplied to a second ejector stage having so that a second motive medium which includes liquid, steam or gaseous agent is injected to the ejector and the gas and/or the liquid phase is sucked into the same ejector in which the gas and/or liquid phase is mixed with the second motive medium for forming a second mixture, at least one of the mixtures includes an additive for removing impurities of the gas, and a purified gas is formed.
Type:
Grant
Filed:
May 9, 2018
Date of Patent:
May 30, 2023
Assignee:
TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
Inventors:
Kristian Melin, Pekka Simell, Esa Kurkela, Marjut Suomalainen
Abstract: A process for producing a deacidified fluid stream from a fluid stream comprising methanol and at least one acid gas and an apparatus for carrying out the process.
Type:
Grant
Filed:
May 31, 2019
Date of Patent:
May 16, 2023
Assignee:
BASF SE
Inventors:
Georg Sieder, Raquel Fernandez Rodiles, Thomas Ingram
Abstract: A collection of systems joined together and formed into a processes to capture CO2 in the dry atmospheric air using an air vacuum pump with attached big fan. The big fan suctions the air while the air vacuum pump pulls the air/gases into the air storage tank. The air/gas being transferred to the built-in freezer in order to freeze it and defrost the ice to liquid. The liquid is drained and transferred to the liquid storage tank. An electrolysis chamber that contains silica gel and peridotite powder allow the separation of molecules upon the application of electrical field. The aqueous silica gel mixed with peridotite powder is the medium serve as an absolute molecular sieves of carbon molecules. A tracking dye is added to the peridotite powder to track the movement of molecules. The liquified gases are injected to the aqueous silica gel. Electrolysis begins by connecting the anode and cathode points to the power supply and electrolysis chamber.
Abstract: The present disclosure relates to a cucurbituril-polyethylenimine-silica complex, a method for preparing the same and a carbon dioxide absorbent containing the same. According to the present disclosure, a cucurbituril-polyethylenimine-silica complex may be prepared by forming a complex wherein a cucurbituril is bound to polyethylenimine and including the same inside silica, and it may be used as a carbon dioxide absorbent with superior thermal stability and prevented formation of urea.
Type:
Grant
Filed:
October 24, 2019
Date of Patent:
May 9, 2023
Assignee:
KOREA INSTITUTE OF ENERGY RESEARCH
Inventors:
Hyun-uk Kim, Young Cheol Park, Jong-ho Moon, Hoon Beom Park, Muhammad Sohail
Abstract: A system for reducing the release of hydrocarbons emitted from a hydrocarbon source into the atmosphere includes a hydrocarbon supply conduit configured to receive the emitted hydrocarbons. In addition, the system includes an air supply conduit coupled to an air source. Further, the system includes a combustion device coupled to an outlet end of the hydrocarbon supply conduit and an outlet end of the air supply conduit. The combustion device is configured to receive the hydrocarbons from the hydrocarbon supply conduit and the air from the air supply conduit, and combust the hydrocarbons. Still further, the system includes a catalytic converter spaced apart from the combustion device and a transfer conduit extending from an outlet of the combustion device to an inlet of a catalytic converter. The catalytic converter is configured to receive the combustion products and any un-combusted hydrocarbons from the transfer conduit, and oxidize the un-combusted hydrocarbons.
Abstract: When coal is combusted, such as in the process of generating electricity, fly ash is produced in abundant quantities. Methods and systems are provided for extracting materials, such as rare earth elements critical for national security or nuclear power generation, from fly ash. A method of processing fly ash includes installing a collection system in a fly ash pond. The method further includes applying water to the top surface of the fly ash pond, such that the water leaches through fly ash and into the collection system. The leached water is processed to remove materials, such as rare earth elements. Systems are also provided.
Abstract: The disclosure provides a method of treating flue gas that has one or more components. The method comprises passing a solution through both a magnetic field and an electric field to form an activated solution. The method also comprises contacting the activated solution with the flue gas so that the one or more components of the flue gas are at least partially absorbed by the activated solution to form a residue solution.