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Ammonia or ammonium hydroxide

Subclass of:

423 - Chemistry of inorganic compounds

423351000 - NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID)

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
423359000 From elemental hydrogen and nitrogen 64
423358000 From organic material containing nitrogen 7
423356000 From ammonium compound 6
423353000 From nitride of metal or silicon 3
20080213157PROCEDURES FOR AMMONIA PRODUCTION - Systems and methods for producing ammonia. In one approach, Li09-04-2008
20120070363METHOD FOR PRODUCING AMMONIA - A method for producing ammonia includes reacting SiO03-22-2012
20130171053METHOD FOR CONVERTING NITROGEN (N2) INTO AMMONIA AND/OR NITRATE - The present invention relates to a method for converting nitrogen (N07-04-2013
423354000 And producing inorganic carbon and nitrogen containing compound 2
20130287669AMMONIA GAS GENERATION FROM UREA FOR LOW TEMPERATURE PROCESS REQUIREMENTS - Disclosed are methods and apparatus for providing an ammonia feed for a low-temperature process. The process includes two defined stages, gasification and hydrolysis. In a first stage thermal reactor, an aqueous urea solution is fed to a gasification chamber and heated gases are controlled in response to demand from a low temperature process requiring ammonia. The heated gases and aqueous urea are introduced into the gasification chamber upstream to fully gasify the solution of aqueous urea to a first stage gas stream comprising ammonia and isocyanic acid. The first stage gas stream is withdrawn and maintained hot enough to prevent solids formation. All amounts of urea feed, water and heated gases fed into the first stage thermal reactor are monitored and adjusted as necessary to achieve efficient hydrolysis in the second stage hydrolysis reactor. The second stage gas stream is withdrawn from the second stage reactor responsive to demand from a low temperature process requiring ammonia.10-31-2013
20160251248Removal and recovery of phosphate from liquid streams09-01-2016
423355000 By hydrolyzing inorganic carbon and nitrogen containing compound 1
20140105807Non-thermal plasma synthesis with carbon component - The disclosure herein describes a method for producing ammonia by introducing N04-17-2014
Entries
DocumentTitleDate
20090035206Ammonia Synthesis Process - In an industrial scale ammonia synthesis process (02-05-2009
20090123361High Density Storage of Ammonia - A solid ammonia storage and delivery material comprising an ammonia absorbing/desorbing solid material, said storage and delivery material having been compacted to a density above 50% of the theoretic skeleton density provides a solid ammonia storage material which is easy to produce and handle and has a very high density of stored ammonia which is readily released under controlled conditions even though the porosity of the material is very low, and which storage material is safe for storage and transport of ammonia without special safety measures.05-14-2009
20090246114MICROPOROUS MOLECULAR SEPARATION MEMBRANE WITH HIGH HYDROTHERMAL STABILITY - A hydrothermally stable, microporous organic-inorganic hybrid membrane based on silica, having an mean pore diameter of between 0.2 and 1.5 nm, is characterised in that between 5 and 40 mole % of the Si—O—Si bonds have been replaced by moieties having the one of the formulas: Si—{[C10-01-2009
20090257940ENERGY CONVERSION SYSTEM - A system of hardware and controls, know as a Hydrogen Hub, that absorbs electric power from any source, including hydropower, wind, solar, and other energy resources, chemically stores the power in hydrogen-dense anhydrous ammonia, then reshapes the stored energy to the power grid with zero emissions by using anhydrous ammonia to fuel diesel-type, spark-ignited internal combustion, combustion turbine, fuel cell or other electric power generators.10-15-2009
20100086467Release of Stored Ammonia at Start-Up - A system for storage and dosing of ammonia, including a solid ammonia storage material capable of binding and releasing ammonia reversibly by adsorption/absorption. The system is able to release ammonia gradually according to a demand that can vary over time with intermediate periods of no ammonia demand. A main storage unit and a start-up storage unit are provided. The storage units hold ammonia storage material. At least one one-way valve is provided via which the one main storage unit is in communication with the start-up storage unit. The one-way valve prevents any back-flow of ammonia from the start-up storage unit to the main storage unit. Heating devices are arranged to heat the main storage unit and the start-up storage unit separately to generate gaseous ammonia by thermal desorption from the solid storage material. A controller controls the heating power of the main storage unit and the start-up storage unit, thereby enabling ammonia release from at least one of the start-up and/or the main storage unit. A dosing valve controls ammonia flow from the storage units according to a demand.04-08-2010
20100129283Chemical Reactor - A chemical reactor for catalytic reactions, comprises a substantially cylindrical shell (05-27-2010
20100172816Ammonia storage system - A system for storing ammonia comprises gas detector that is able to detect gases other than ammonia. The system further comprises thermally activatable ammonia stores, which can be activated to release ammonia upon heating. When the ammonia stores are not heated, the system is below ambient pressure and any leak will cause external gas to enter the system. Therefore, the gas detector is used to detect the presence of such external gas, which allows to detect leaks. The gas detector may be embodied as a thermal detector using a single heater and two temperature sensors for detecting a gas flow as well as external gas.07-08-2010
20100183497SYSTEM AND METHOD FOR AMMONIA SYNTHESIS - Systems and methods are disclosed herein for synthesizing ammonia using nano-size metal or metal alloy catalyst particles. Hydrogen and nitrogen gases are passed through a system comprising, for example, a bed of magnetite supporting nano-size iron or iron alloy catalyst particles having an optional oxide layer that forms the catalyst.07-22-2010
20100209329CATALYST FOR PRODUCING AMMONIA FROM HYDROCARBON AND NITROGEN OXIDES - Provided is a process for producing ammonia by the catalytic reduction of nitrogen oxide in the presence of a hydrocarbon, and in certain embodiments, in the presence of an oxygenated hydrocarbon.08-19-2010
20100254880STABILIZED COMPOSITIONS COMPRIZING AMMONIUM NITRATE - Preferred aspects of the present invention provide ammonium nitrate compositions comprising ammonium nitrate and at least one stabilizing agent, and preferably a third compound. In certain preferred embodiments, the stabilizing agent, together with third compound, is present under conditions and in amounts effective to substantially reduce the detonation sensitivity of the composition and/or to otherwise improve a desired property of the composition.10-07-2010
20100266475Production of Saturated Ammonia Storage Materials - A process for saturating a material capable of binding ammonia by ad- or absorption and initially free of ammonia or partially saturated with ammonia comprises treating said material under a pressure and associated temperature located on the vapor pressure curve of ammonia with an amount of liquid ammonia sufficient to saturate said material and an additional amount of a cooling agent selected from liquid ammonia, liquid or solid CO10-21-2010
20110033361METHOD FOR REMOVING HALOGEN FROM LIQUID AMMONIA - The present invention relates to a method for depleting halide ions from liquid ammonia, wherein the liquid ammonia is brought into contact with a strongly basic ion exchanger, where the basic structure of the strongly basic ion exchanger is a covalently crosslinked polymer matrix. Furthermore, the present invention relates to the use of an ammonia obtainable according to the invention as starting material in the production of amines.02-10-2011
20110097257AMMONIA RECOVERY DEVICE AND RECOVERY METHOD - A method includes a first step of, with a CO04-28-2011
20110165055SYSTEM AND METHOD FOR AMMONIA SYNTHESIS - Systems and methods are disclosed herein for synthesizing ammonia using nano-size metal or metal alloy catalyst particles. Hydrogen and nitrogen gases are passed through a system comprising, for example, a bed of magnetite supporting nano-size iron or iron alloy catalyst particles having an optional oxide layer that forms the catalyst.07-07-2011
20110176987Transfer apparatus and system, and uses thereof - A transfer apparatus for facilitating transfer between a higher density fluid and a lower density fluid. The apparatus includes a transfer chamber includes a higher density fluid zone and a lower density fluid zone adjacent each other. A moveable contactor is housed in the transfer chamber. At least a portion of the moveable contactor is moveable between the higher density fluid zone and the lower density fluid zone. A current generator connected to the transfer chamber generates a current in the lower density fluid zone. A transfer system includes a plurality of fluidly connected apparatuses in series.07-21-2011
20110236293INTEGRATED GAS REFINERY - The present invention relates to an integrated synthesis gas refinery plant and a process for the simultaneous production from a single synthesis gas stream X of a hydrogen stream useful for the production of ammonia, a hydrogen rich synthesis gas stream useful for the production of methanol, and a hydrogen depleted synthesis gas stream useful for the production of hydrocarbons.09-29-2011
20110236294Saturation of Ammonia Storage Materials in Containers - A method of saturating reversible ammonia storage materials inside a container for the purpose of achieving high volumetric ammonia storage capacity and containers filled with the materials are disclosed.09-29-2011
20120039787PROCESS FOR THE RECOVERY OF AMMONIA FROM A GASEOUS STREAM - A process for the recovery of ammonia contained in a gaseous stream is described, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing (S) with an aqueous washing solution (02-16-2012
20120039788PRODUCTION OF SATURATED AMMONIA STORAGE MATERIALS - A process for saturating a solid material capable of binding ammonia by ad- or absorption and initially free of ammonia or partially saturated with ammonia comprises treating said solid material under a pressure and associated temperature located on the vapor pressure curve of ammonia with an amount of liquid ammonia sufficient to saturate said solid material and an additional amount of a cooling agent selected from liquid ammonia, liquid or solid CO02-16-2012
20120237430Eliminating Hydrogen Sulfide from Liquid Ammonia - Processes for selectively eliminating hydrogen sulfide from liquid ammonia, either anhydrous or aqueous, are described herein. The processes generally include contacting a first liquid stream, anhydrous or aqueous, comprising ammonia and hydrogen sulfide, with a solution comprising sulfur dioxide to convert the hydrogen sulfide to thiosulfate.09-20-2012
20120251429SYSTEMS AND METHODS OF PRODUCING CHEMICAL COMPOUNDS - Systems and methods of producing chemical compounds are disclosed. An example chemical production system includes an intake chamber having intake ports for entry of a gas mixture. An igniter ignites the gas mixture in the intake chamber. A nozzle restricts exit of the ignited gas mixture from the intake chamber. An expansion chamber cools the ignited gas with a cooling agent. The expansion chamber has an exhaust where the cooled gas exits the expansion chamber. A chemical compound product is formed in the expansion chamber.10-04-2012
20120315209METHODS AND SYSTEMS FOR TREATING WATER STREAMS - Methods and systems for treating wastewater and process water streams are provided. In some embodiments, the wastewater and/or process water to be treated contains a target chemical (e.g., ammonia and/or ammonium). The methods and systems described herein may include recovering the target chemical from the water stream and/or producing a desired product (e.g., a fertilizer such as an ammonium salt) from the target chemical. In one set of embodiments, a method of treating wastewater and/or process water involves introducing the water stream into a system that includes a combination of two or more of, or all of, a reverse osmosis system, a reaction and separation system (e.g., a vacuum distillation system or other suitable separation system), and a membrane reactor system.12-13-2012
20130011321EXHAUST GAS TREATMENT APPARATUS AND METHOD - An exhaust gas treatment apparatus comprises an ammonia absorption system and an ammonia conversion system. The ammonia absorption receives ammonia-containing tail gas generated by a semiconductor process, and removes dust from the tail gas, absorbs and decomposes ammonia gas from the tail gas, converts the ammonia gas into aqueous ammonia, and emits the tail gas without the dust and the ammonia to an external environment. The ammonia conversion system receives the ammonia solution from the ammonia absorption system, and converts it into gaseous ammonia, and then converts the gaseous ammonia to produce liquid ammonia by vaporization and cooling-pressurized liquefaction. After that, the liquid ammonia is purified by a purification system to formed hi-purity liquid ammonia.01-10-2013
20130142723BIOMASS GASIFICATION SYSTEMS HAVING CONTROLLABLE FLUID INJECTORS - Biomass gasification systems including a reactor adapted to gasify a biomass feedstock to thermally convert the biomass feedstock into producer gas are provided. The reactor includes an enclosure disposed about a biomass gasification chamber. The enclosure includes an inlet, an outlet, and side walls disposed between the inlet and the outlet. The reactor also includes a plurality of fluid injectors disposed along a length of the side walls and adapted to inject fluid into the gasification chamber. The biomass gasification system also includes a control system communicatively coupled to the plurality of fluid injectors and adapted to independently control each fluid injector of the plurality of fluid injectors to independently control a flow of fluid through each fluid injector.06-06-2013
20130209345Method for recovering volatile components from a solid - The invention relates to a method for recovering volatile components from a solid (08-15-2013
20140093444Process for Ammonia Saturation of Solid Materials, and Corresponding Assembly - A process for ammonia saturation of a solid material capable of absorbing and desorbing ammonia, the solid material being composed of solid particles and includes placing the solid material in contact with a cooled surface, with the solid material being disposed against the cooled surface in a thin layer having a thickness of less than 100 mm. The process further includes injecting a stream of gaseous ammonia to be in contact with the solid material, while the solid material is in contact with the cooled surface.04-03-2014
20140205529METHOD FOR STORING A GAS BY CHEMISORPTION ON A POROUS MATERIAL COMPRISING EXPANDED GRAPHITE - Method for storing a gas in solid phase so that it can be distributed in gaseous phase, that consists in introducing the gas in gaseous phase into a storage tank (07-24-2014
20140271438EXTRACTION OF NITROGEN FROM ORGANIC MATERIALS THROUGH AMMONIFICATION BY MIXED BACTERIAL POPULATIONS - The invention provides a process for producing ammonia or ammonium from an organic material by fermenting a medium comprising organic material in the presence of a mixed bacterial population capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.09-18-2014
20140286849Mixtures of Ammonia and Ionic Liquids - Mixtures of ammonia and ionic liquids are provided that are suitable for use as absorption cooling fluids in absorption cycles, and ammonia storage.09-25-2014
20140322124METHOD OF PROCESSING DISCHARGE GAS DISCHARGED FROM PRODUCTION PROCESS OF GALLIUM NITRIDE COMPOUND SEMICONDUCTOR - The present invention provides a method of processing discharge gas containing ammonia, hydrogen, nitrogen, and an organic metal compound discharged from the production process of a gallium nitride compound semiconductor. The discharge gas is brought into contact with a cleaning agent prepared by impregnating an alkali metal compound with a metal oxide to remove the organic metal compound from the discharge gas. The discharge gas from which an organic metal compound is removed is brought into contact with an ammonia decomposition catalyst on heating to decompose the ammonia into nitrogen and hydrogen. The discharge gas in which ammonia is decomposed is brought into contact with palladium alloy membrane on heating to recover hydrogen that has penetrated through the palladium alloy membrane. After an organic metal compound is removed to liquefy the ammonia contained in the discharge gas as described above, a pressurization process and a cooling process is conducted by a heat pump to pressurize and cool the discharge gas from which an organic metal compound is removed to liquefy the ammonia contained in the discharge gas and separate the liquefied ammonia from hydrogen and nitrogen so as to recover the liquefied ammonia. The recovered hydrogen and ammonia are supplied to and reused in the production process of a gallium nitride compound semiconductor.10-30-2014
20150098888METHOD FOR PRODUCING AMMONIA OR AMMONIUM BY FERMENTATION - The invention provides a process for producing ammonia or ammonium from an organic material, the method by contacting the organic material with at least one hydrolytic enzyme, in a medium, to produce a medium including hydrolyzed or partially hydrolyzed organic material suitable for microbial fermentation. The hydrolyzed or partially hydrolyzed medium with organic material is then fermented in the presence of at least one microorganism capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.04-09-2015
20150104371CATALYTIC AMMONIA SYNTHESIS BY TRANSITION METAL MOLECULAR COMPLEXES - This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to catalysts and catalytic methods for reduction of molecular nitrogen. The molecular catalytic platform provided herein is capable of the facile reduction of molecular nitrogen under useful conditions such as room temperature or less and atmospheric pressure or less.04-16-2015
20150147259METHODS AND SYSTEMS FOR FORMING AMMONIA AND SOLID CARBON PRODUCTS - Methods of concurrently forming ammonia and solid carbon products include reacting a carbon oxide, nitrogen, and a reducing agent at preselected reaction conditions in the presence of a catalyst to form a solid carbon product entrained in a tail gas mixture comprising water and ammonia; separating entrained solid carbon product from the tail gas mixture; and recovering water and ammonia from the tail gas mixture. Systems for forming ammonia and solid carbon products from a gaseous source containing carbon oxides include mixing means for mixing the gaseous source with a reducing agent, reactor means for reacting at least a portion of the gaseous source with the reducing agent in the presence of a catalyst to produce the solid carbon products and a tail gas mixture comprising the ammonia, and solid separation means for separating the solid carbon products from the tail gas mixture.05-28-2015
20150291438Polygeneration Production of Power and Fertilizer Through Emissions Capture - Method for the production of ammonia, and optionally urea, from a flue gas effluent from an oxygen-fired, process, wherein the production of ammonia and optionally urea includes a net power production. Also provided is a method to effect cooling in an oxygen-fired process with air separation unit exit gases utilizing either closed or open cooling loop cycles.10-15-2015
20150307796SYSTEM AND METHOD FOR ELECTRICALLY-COUPLED HEAT ENGINE AND THERMAL CYCLE - In accordance with an embodiment of the invention, there is provided a device for generating electrical energy using a thermal cycle of a working gas. The device comprises at least one piston movably mounted in a container to form a working chamber between the at least one piston and the container, the working chamber containing the working gas performing the thermal cycle. An electrical circuit is mounted stationary relative to the container, the electrical circuit being electromagnetically coupled to provide a motive force to the at least one piston. An electronic power converter is electrically connected to the electrical circuit and to an electrical bus, and an electrical storage device is electrically connected to the electrical bus. The at least one piston is movably mounted such that its motion electromagnetically induces current in the electrical circuit. An electronic controller is electronically connected to the electronic power converter to control motion of the at least one piston to perform, in the thermal cycle, at least one of: (i) expanding the working gas beyond the volume at which compression of the working gas is begun within the thermal cycle or (ii) exhausting the working gas to a remaining volume less than the smallest volume of compressed gas within the thermal cycle. The electronic controller further controls flow of electrical energy to and from the electrical bus to effect a net positive average power transfer from the working gas to the electrical bus over the course of the thermal cycle.10-29-2015
20150336830Removal and recovery of phosphate from liquid streams - An economical method for recovering phosphate or phosphate and nitrogen from liquid streams. A liquid containing phosphate is introduced into a culture of autotrophic microorganisms in the presence of natural or artificial light, thereby producing a liquid effluent with elevated pH and reduced alkalinity. The alkalinity is reduced through the consumption of bicarbonate/carbonate by the autotrophic microorganisms. The effluent is then chemically treated with low-cost chemicals to provide Ca11-26-2015
20160016808Method for recovering volatile components from a solid - In a method for recovering volatile components from a solid material, a liquid phase is mechanically removed from the solid material. Subsequently, the solid material is dried by exposing the solid material to superheated steam circulating in a closed circuit. From the closed circuit excess steam that contains volatile components given off by the solid material is removed. The volatile components are separated from the excess steam by condensing the excess steam to a condensed phase and the volatile components are from the condensed phase by adding suitable ions to the condensed phase to crystallize the volatile components.01-21-2016
20160101987METHOD OF PROCESSING DISCHARGE GAS DISCHARGED FROM PRODUCTION PROCESS - The present invention provides a method of processing discharge gas containing ammonia, hydrogen, nitrogen, and an organic metal compound discharged from the production process of a gallium nitride compound semiconductor. The discharge gas is brought into contact with a cleaning agent prepared by impregnating an alkali metal compound with a metal oxide to remove the organic metal compound from the discharge gas. The discharge gas from which an organic metal compound is removed is brought into contact with an ammonia decomposition catalyst on heating to decompose the ammonia into nitrogen and hydrogen. The discharge gas in which ammonia is decomposed is brought into contact with palladium alloy membrane on heating to recover hydrogen that has penetrated through the palladium alloy membrane. After an organic metal compound is removed to liquefy the ammonia contained in the discharge gas as described above, a pressurization process and a cooling process is conducted by a heat pump to pressurize and cool the discharge gas from which an organic metal compound is removed to liquefy the ammonia contained in the discharge gas and separate the liquefied ammonia from hydrogen and nitrogen so as to recover the liquefied ammonia. The recovered hydrogen and ammonia are supplied to and reused in the production process of a gallium nitride compound semiconductor.04-14-2016
20160145113VENT LINE FOR USE IN AMMONIA AND HYDROGEN PLANTS - In an ammonia or hydrogen plant comprising a desulfurisation section, a reforming section and a shift section, where the shift section comprises a low temperature shift converter and a medium temperature shift converter, a vent line is arranged downstream from the low temperature shift converter and the medium temperature shift converter in order to allow the shift converters to be re-heated with process gas at a low pressure (typically 3-7 bar). This way condensation of water vapour in the process gas is avoided. By applying this vent line it becomes possible to save significant time, more specifically 8-24 hours, for restarting the production after temporary shut-down thereof, because a heat-up of the LTS/MTS converter in circulating nitrogen is avoided.05-26-2016
20190144292MANUFACTURING SYSTEM OF ELECTRONIC-GRADE AMMONIA SOLUTION05-16-2019

Patent applications in class Ammonia or ammonium hydroxide

Patent applications in all subclasses Ammonia or ammonium hydroxide

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