243results about "Oxygen/ozone/oxide/hydroxide" patented technology

The present invention belongs to the technical field of design and synthesis of carbon-monoxide and carbon-dioxide-based Fischer-Tropsch synthesis catalysts, and discloses a novel iron-based Fischer-Tropsch synthesis catalyst containing both iron and carbon and a synthesis method and use thereof. The present invention specifically relates to a catalyst mixture for use in hydrogenation of CO and / or CO2, which catalyst mixture comprises i) iron oxide promoted by alkali metal, alkaline earth metal or transition metal, and ii) iron carbide. The invention further relates to a method for production of iron carbide composite comprising different iron carbides, and the use of said carbide composite in combination with alkali metal, alkaline earth metal or transition metal promoted iron oxide for use in hydrogenation of CO and / or CO2.

There is provided an aquaculture assembly for generating compressed air and concentrated oxygen. The assembly includes an aeration system. The assembly includes an oxygen concentrator. The assembly includes a compressor operatively connected to both the aeration system and the oxygen concentrator. The compressor selectively directs compressed air to the aeration system, the oxygen concentrator or both the aeration system and the oxygen concentrator. The assembly may include a variable speed engine directly coupled to the compressor. There is also provided oxygen generation system with a fluid-air heat exchanger configured to receive therethrough and cool compressed air. A filtration unit, downstream of the fluid-air exchanger, removes liquid from the compressed air so cooled. An oxygen concentrator, downstream of the filtration unit, includes one or more vessels via which the compressed air is selectively received. Each said vessel includes an adsorbent and a desiccant therewithin.

The invention relates to a method for simultaneously preparing lithium hydroxide and sulfuric acid. The invention provides a method for simultaneously preparing lithium hydroxide and sulfuric acid, which comprises the following steps: preparing a bipolar membrane electrodialysis device which comprises a first bipolar membrane, an anion exchange membrane, a cation exchange membrane and a second bipolar membrane, and forming an acid chamber between the first bipolar membrane and the anion exchange membrane, a salt chamber is formed between the anion exchange membrane and the cation exchange membrane, and an alkali chamber is formed between the cation exchange membrane and the second bipolar membrane; a lithium sulfate aqueous solution is added into a salt chamber of the bipolar membrane electrodialysis device, a sulfuric acid aqueous solution is added into an acid chamber, and a lithium hydroxide aqueous solution is added into an alkali chamber; and discharging the desalted solution formed in the salt chamber of the bipolar membrane electrodialysis device, discharging the sulfuric acid aqueous solution formed in the acid chamber, and discharging the lithium hydroxide aqueous solution formed in the alkali chamber.

The invention discloses a zero-carbon glass kiln process. A system required by the process comprises a photovoltaic power generation device, an air separation device, a water electrolysis hydrogen production device, a mixer, a methanation device, a waste heat boiler I, a reforming device, a glass kiln, a waste heat boiler II and a dust removal and desulfurization device. Green oxygen, green nitrogen and green hydrogen are produced through green electricity driving; the flue gas of the glass kiln is cyclically enriched into high-concentration carbon dioxide (95.0 v% or above), the high-concentration carbon dioxide and green hydrogen are subjected to a methanation reaction to produce methane, and the methane, the carbon dioxide and water vapor are subjected to a reforming reaction to produce carbon monoxide and hydrogen; carbon monoxide and hydrogen are used as fuel of the glass kiln, green oxygen and carbon dioxide are mixed to form carbon-based oxygen-enriched combustion which is used as a combustion improver of the glass kiln, carbon-based oxygen-enriched combustion of the glass kiln is carried out, and redundant carbon dioxide is sold. According to the invention, the purposes of greenness, energy conservation, almost no nitrogen oxide and zero carbon are realized.

Chemical reaction devices involving acid and / or base, and related systems and methods, are generally described.

The present invention relates to an alkaline electrolysis device comprising: - at least one electrolysis cell comprising a reactor chamber which comprises a hydrogen-side reactor chamber region containing the aqueous electrolyte for decomposing the aqueous electrolyte into gaseous hydrogen and an oxygen-side reactor chamber region containing the aqueous electrolyte for decomposing the aqueous electrolyte into gaseous oxygen; - a hydrogen separator connected to the hydrogen-side reactor chamber region for separating the gaseous hydrogen from the aqueous electrolyte introduced into the hydrogen separator; and - an oxygen separator connected to the oxygen-side reactor chamber region for separating the gaseous oxygen from the aqueous electrolyte introduced into the oxygen separator; wherein the hydrogen separator has a first hydrogen separator outlet for removing the aqueous electrolyte having a first hydrogen concentration and a second hydrogen separator outlet for removing the aqueous electrolyte having a second hydrogen concentration that is less than the first hydrogen concentration; and where the first hydrogen separator outlet and the second hydrogen separator outlet are connectable or connected to the reactor chamber.

An apparatus, includes: a first raw material supply unit 110 including a filter housing 111, a supply fan 112, a flow regulator 113, an electronic valve 114, and an air supply line 115, wherein the supply fan 112 is operated to suck in external air, in the process, the HEPA filter (not shown) mounted inside the filter housing 112 filters fine dust and adjusts the air supply flow rate from the flow regulator 113 to the appropriate flow rate and supplies through the supply line 115 to the ion generator 200; a second raw material supply unit 120 including a pressure regulator 122, a flow regulator 123, an electronic valve 124, and an air supply line 125.

This disclosure includes wound dressings and systems with remote oxygen generation for topical wound therapy and related methods. Some systems include a dressing for facilitating delivery of oxygen to the target tissue, the dressing having: a first manifold that defines a plurality of gas passageways and is configured to allow communication of oxygen to the target tissue; a gas-occlusive layer configured to be disposed over the first manifold and coupled to tissue surrounding the target tissue such that: an interior volume is defined between the gas-occlusive layer and the target tissue; and the gas-occlusive layer limits escape of oxygen from the interior volume between the gas-occlusive layer and the tissue surrounding the target tissue; a container outside the interior volume, the container having a sidewall that defines a chamber configured to be in fluid communication with the interior volume; and an oxygen-generating material disposed within the chamber of container and configured to release oxygen when exposed to water.

Provided herein is a method for removing carbon dioxide from an aqueous or gaseous stream by contacting the gaseous stream containing carbon dioxide when present with an aqueous solution containing ions capable of forming insoluble carbonates; contacting the aqueous solution containing carbon dioxide with an electroactive grid that induces its alkalization, thereby forcing carbonate solids to precipitate from the solution and thereby removing dissolved inorganic carbon by electrolysis; and removing the precipitated carbonate solids from the solution or from the surface of the grid where the carbonate solids may be deposited. Also provided herein is a flow-through electrolysis reactor, the flow-through electrolysis reactor comprising: an intake device connected to a rotating cylinder fluid comprising an electroactive grid, and a scraping device and / or a liquid spray-based device for separating solids from the surface of the grid.

Black mass from disused lithium batteries is leached for recovery of various metals in a process that includes precipitation, solvent exchange, ion exchange, and salt splitting to create multiple product streams for recovery of pure value products. Most typically, the process is a closed-loop process and allows for production of metallic cobalt and nickel, EMD, and a high purity lithium hydroxide or carbonate product with minimal generation of waste streams.

Provided herein are methods of removing carbon dioxide from an aqueous stream or gaseous stream by: contacting the gaseous stream comprising carbon dioxide, when present, with an aqueous solution comprising ions capable of forming an insoluble carbonate salt; contacting the aqueous solution comprising carbon dioxide with an electroactive mesh that induces its alkalinization thereby forcing the precipitation of a carbonate solid from the solution and thereby the removal of dissolved inorganic carbon by electrolysis; and removing the precipitated carbonate solids from the solution, or the surface of the mesh where they may deposit. Also provided herein are flow-through electrolytic reactors comprising an intake device in fluid connection with a rotating cylinder comprising an electroactive mesh, and a scraping device and / or liquid-spray based device for separating a solid from the mesh surface.

The invention provides a nano transition metal oxide and a gas-phase synthesis method and application thereof, and belongs to the technical field of metal oxides. The gas-phase synthesis method of the nano transition metal oxide comprises the following steps: respectively and continuously introducing transition metal carbonyl compound gas and ozone gas into a reaction device, so that the transition metal carbonyl compound gas and the ozone gas are subjected to oxidation reaction to obtain the nano transition metal oxide.

This paper discloses a rapid cyclic pressure swing adsorption (PSA) method for separating O2 from N2 and / or Ar. The method uses a carbon molecular sieve (CMS) adsorbent with a driving force of 1 atma and 86 atma, as indicated by a linear driving force model. o F measures at least 5% O2 / N2 and / or O2 / Ar kinetic selectivity and at least 0.2000% O2 adsorption rate (1 / s).

The present invention is directed to piezo photocatalytic process for the production of hydrogen from water, wherein the process comprises the steps of: (a) providing non-metal-doped barium titanate which includes at least one defect; (b) contacting the non-metal-doped barium titanate provided in step (a) with water to form a mixture; and (c) subjecting the mixture formed in step (b) to: (i) actinic radiation; and (ii) mechanical force, to produce hydrogen from the water, as well as non-metal-doped barium titanate and methods of production thereof.

The present invention relates to an exothermic process for producing metal oxides or metalloid oxides, comprising introducing metal and / or metalloid precursors into a flame formed by burning a gas mixture comprising oxygen and hydrogen, at least a portion of the hydrogen being obtained from the electrolysis of water or an aqueous solution using electrical energy obtained at least in part from a renewable energy source, and at least a portion of the thermal energy of the flame being transferred by at least one exchanger to a first heat transfer medium, thereby heating the first heat transfer medium to a maximum temperature in the range between 80°C and 150°C.

[Problem] Provided are an ammonia-hydrogen mixed fuel production apparatus and a fuel supply system, which are capable of stably acquiring hydrogen from ammonia even when a required ratio of a fuel is changed. [Solution] An ammonia-hydrogen mixed fuel production apparatus 1010A includes an oxygen separator 13 that separates oxygen (O2) 12 from air 11 at a desired concentration, a reforming reactor 15 that converts ammonia (NH3) supplied from a raw material supply portion 14 into hydrogen (H2) by using the oxygen of the desired concentration from the oxygen separator 13, and a gas component analyzer 17 that measures a concentration of one or both of the hydrogen and the ammonia in a reformed gas 16 from the reforming reactor 15.

An ethylene production apparatus for producing ethylene from a methane-containing gas includes a ceramic membrane having at least one of oxide ion conductivity and proton conductivity; a first catalyst layer that is disposed on a first face of the ceramic membrane and includes a catalyst for accelerating oxidative-coupling-of-methane reaction; a methane supply unit that supplies the methane-containing gas to a space located on the same side as the first face of the ceramic membrane; and a charge transfer unit that transfers an electron from the first face to a second face of the ceramic membrane or transfers a hole from the second face to the first face. The ethylene production apparatus produces ethylene in the first catalyst layer upon supply of the methane-containing gas from the methane supply unit.

[Problem] To provide: an ammonia-hydrogen mixed fuel production apparatus capable of stably obtaining hydrogen from ammonia even when there is a change in the required ratio of fuel; and a fuel supply system. [Solution] An ammonia-hydrogen mixed fuel production apparatus 1010A comprises: an oxygen separation device 13 that separates oxygen (O2) 12 at a desired concentration from air 11; a reforming reactor 15 that converts ammonia (NH3) supplied from a raw material supply unit 14 into hydrogen (H2) by using the oxygen having the desired concentration from the oxygen separation device 13; and a gas component analyzer 17 that measures the concentration of one or both of hydrogen and ammonia in a reformed gas 16 from the reforming reactor 15.

The present application relates to a method and a plant (10) for processing an oxygen gas which is produced by electrolysis of water and / or steam and is used as an oxidizing agent in a metallurgical facility (1), wherein the oxygen gas produced by electrolysis is subjected to at least one drying step, via which the accompanying gases hydrogen and water contained in the oxygen gas are removed, preferably quantitatively.

A heat exchanger comprises a plurality of cells formed by a stack of alternate planar flow-guide plates (1) and heat transfer plates (2), each heat transfer plate having at least three apertures (3, 4, 6) therethrough, each aperture defining a part of a respective one of at least three fluid flow paths in the heat exchanger. Each flow-guide plate has apertures therethrough corresponding to at least two of the flow paths and a larger aperture (5, 7, 8) therethrough configured to guide fluid in the remaining flow path across the face of the heat transfer plates between which the flow-guide plate is located, each successive flow-guide plate in the stack forming part of a different flow path from the preceding one in the stack.

The present invention relates to an enhanced catalytic nickel oxide sheet having an organic part which includes non-stoichiometric nickel oxides dispersed in an organic matrix, wherein the catalytic sheet is supported on a substrate. The invention also relates to a method for obtaining the catalytic film and to its uses as an electrode in electrocatalysis of water or in photocatalysis.

The disclosure provides a method of producing hydrogen. The method comprises conducting a thermochemical reaction by contacting a metal, or an alloy thereof, with steam to produce a metal oxide and / or a metal hydroxide and hydrogen. The method then comprises contacting the metal oxide and / or the metal hydroxide produced in the thermochemical reaction with water or a basic aqueous solution to produce a solution comprising a metal ion. Finally, the method comprises conducting an electrochemical reaction by applying a voltage across an anode and a cathode, whereby at least a portion of the cathode contacts the solution comprising the metal ion, to produce hydrogen, oxygen and the metal, or the alloy thereof.

The invention discloses a synthesis method of a metal oxide material, which belongs to the field of oxide materials, and comprises the following steps: step 1, selecting metal salts corresponding to more than five metal elements, and completely dissolving the metal salts in a reducing substance containing hydroxyl functional groups until the metal salts are completely dissolved to form a solution; the metal element range is composed of Li, Na, K, Mg, Ca, Al, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Cd, Sn, Cs, La, Ba, Ce, Nd, W, Re, Ir, Pt and Bi. 2, tannic acid is used as a reducing agent and added into the solution, and a mixed solution is formed; and step 3, adding alkali into the mixed solution for reaction to obtain the multi-element amorphous metal oxide. The multi-element amorphous metal oxide can be prepared, the cost is low, the operation is simple and easy, the production period is short, and the energy consumption is low.

A processing system and method of producing a particulate material are provided. The processing system includes a system inlet connected to one or more gas lines to deliver one or more gases into the processing system, a buffer chamber, a dispersion chamber, a heating assembly, a reaction chamber and a system outlet for delivering particulate material out of the processing system. The method includes delivering one or more gases via a system inlet into a buffer chamber of a processing system, jetting a liquid mixture into one or more streams of droplets using one or more power jet modules into the processing system, delivering flows of one or more heated gases via a heating assembly, forming a reaction mixture and processing the reaction mixture at a reaction temperature into a product material inside the reaction chamber.

To provide a gas supply device capable of performing an energy-saving operation by supplementing the lack of heating capacity for preheating a solid electrolyte by heating a gas on an intake side of a gas generation unit or alternating a heating mechanism for preheating the solid electrolyte, and a gas production method using the gas supply device.SOLUTION: A gas supply device including a gas generation unit with a solid electrolyte comprises a gas generation unit, and a heat conduction mechanism which can exchange heat in a gas on the intake side or a gas on the exhaust side of the gas generation unit.SELECTED DRAWING: Figure 1

A composition based on zirconium oxides, cerium oxides, and at least one rare earth element other than cerium, having a cerium oxide content of at most 50% by mass, characterized in that, after calcination at 1000 °C for 6 hours, it exhibits a maximum reducibility temperature between 450 °C and 480 °C and a specific surface area between 55 m² 2 / g and 60 m 2 / g.

The present invention provides a syringe which can inhibit the decomposition of hydrogen peroxide. The present invention provides a syringe which is pre-filled with a hydrogen peroxide solution, wherein at least the syringe barrel of the syringe is made of a material with high decomposition ability of hydrogen peroxide, and the inner wall of the syringe barrel is coated with an oily composition containing silicone oil.

A method for efficient photocatalysis in which electric charge carriers are energetically excited upon absorption of electromagnetic radiation, characterized in that the charge carriers are separated by a pyroelectric field.

To provide a hydrogen production device in which the total light utilization efficiency is made higher than before by efficiently utilizing a wide range of wavelength components from ultraviolet light of sunlight to infrared light including visible light.SOLUTION: A hydrogen production device that has a photocatalyst and generates hydrogen from water comprises a wavelength separation unit that separates sunlight into wavelengths, an infrared light conversion unit that converts infrared light separated by the wavelength separation unit into visible light, and an ultraviolet light conversion unit that converts ultraviolet light separated by the wavelength separation unit into visible light.SELECTED DRAWING: Figure 2

The storage apparatus according to the invention, a geo hydrogen storage system, is a system consisting of a plurality of groundwater wells drilled into the ground. Hydrogen is produced by electrolysis using green energy. The hydrogen and the associated oxygen are stored in and recovered from cartridges installed in said wells being flooded by the groundwater and located at appropriate distances from each other. The system uses closed-circuit circulating water to transport the gases generated in electrolysis in the form of bubbles. The gases are separated from the circulating water by volume expansion and form gas bubbles when they reach the corresponding cartridge. This gas bubble will, with continued operation, squeeze larger and larger volume of water from the groundwater in the cartridge, thereby pressurizing the system.