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159 results about "Oxygent" patented technology

Oxygent is a human blood substitute designed for surgical applications by the Alliance Pharmaceutical Corp. As of February 2005, the substance had not been approved for use by the Food and Drug Administration as there are questions about its safety. Phase 2 trials were announced in 2007. There are several advantages of using artificial blood substitutes instead of human blood transfusions: it will not spread blood-borne diseases; it is a universal replacement for people in any blood type; and it is acceptable to Jehovah's Witnesses who refuse human blood transfusions. Oxygent is a lecithin-stabilized emulsion of a perfluorocarbon.

Oxygen concentration apparatus

An oxygen concentration apparatus (300) according to the present invention has: pressure swing adsorption type oxygen concentration means (310); and a control means (350) that controls switching means (316) that switches between intake of pressurized air into an adsorption column (312) and exhaust from the adsorption column. The switching means is controlled based on pressure in oxygen concentrated gas in the conduit measured by pressure measuring means to adjust a cycle of adsorption and regeneration processes of the oxygen concentration means so that pressure at the upstream of flow rate adjusting means (340) can be controlled and, as a result, the need for a mechanical pressure regulating valve, that has been needed conventionally, can be eliminated. Further, there is also shown a gas supply apparatus that comprises ultrasonic type gas concentration and flow rate measuring means that comprises, in turn, two ultrasonic transducers that is disposed in an opposed manner in the conduit through which product gas flows so that a concentration value measured when the product gas output is stopped is determined to be a product gas concentration.
Owner:TEIJIN LTD

Oxygen concentrator

The present invention relates to an oxygen concentrator in which a pulsation detection device for detecting pulsation of oxygen supplied and a control device for controlling an amount of air supplied from a compressor based on the detection results in a pressure swing adsorption-type oxygen concentrator, which is equipped with an adsorption bed filled with an adsorbent capable of selectively adsorbing nitrogen relative to oxygen, the compressor for supplying air to the adsorption bed, a channel switching valve to repeat in a constant timing an adsorption step, in which air is supplied from the compressor to the adsorption bed to isolate concentrated oxygen and a desorption step, in which the adsorption bed is evacuated to regenerate the adsorbent and a flow rate measuring device for determining a supply flow rate of concentrated oxygen produced and an amount of oxygen produced is controlled by a feedback with a flow rate sensor by itself after paying attention to variation of a product flow rate caused by suppressing an amount of oxygen produced, thereby realizing an apparatus to satisfy secondary performance such as miniaturization, low power consumption and silencing.
Owner:TEIJIN LTD

Vapor phase oxidation of propylene to acrolein

An improved method for the selective vapor phase oxidation of propylene to acrolein in a recirculating solids reactor system using a bismuth molybdate multimetal oxide involving specific reactant concentrations (preferably 5 mol % to 30 mol % propylene, 0 to 20 mol % oxygen, and the remainder inert gas), particle size (1 to 300 micrometers), temperature (250 to 450.degree. C.) and gas (1 to 15 seconds) and solids (2 to 60 seconds) residence times. Such a process leads to improved selectivity and propylene conversion.
Owner:EI DU PONT DE NEMOURS & CO +1

Adsorbent cartridge for oxygen concentrator

A removable gas separation cartridge which includes a housing containing three columns, each having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using a vacuum swing absorption process.
Owner:VBOX

Scavenging oxygen

A container (22) includes a shell (24) made from a polymer, for example PET, and incorporating a catalyst, for example a palladium catalyst. A closure (40) incorporates a plug which includes a source of hydrogen, for example a hydride. In use, with container (22) including a beverage and closure (40) in position, the headspace in the container will be saturated with water vapor. This vapor contacts the hydride associated with plug (42) and as a result the hydride produces molecular hydrogen which migrates into the polymer matrix of shell (24) and combines with oxygen which may have entered the container through its permeable walls. A reaction between the hydrogen and oxygen takes place, catalysed by the catalyst, and water is produced. Thus, oxygen which may ingress the container is scavenged and the contents of the container are protected from oxidation.
Owner:COLORMATRIX HLDG

Method of treating cardio pulmonary diseases with no group compounds

Treatment of pulmonary disorders associated with hypoxemia and / or smooth muscle constriction and / or inflammation comprises administering into the lungs as a gas compound with an NO group which does not form NO2 / NOx in the presence of oxygen or reactive oxygen species at body temperature. Treatment of cardiac and blood disorders, e.g., angina, myocardial infarction, heart failure, hypertension, sickle cell disease and clotting disorders, comprises administering into the lungs as a gas, a compound which reacts with cysteine in hemoglobin and / or dissolves in blood and has an NO group which is bound in said compound so that it does not form NO2 / NOx in the presence of oxygen or reactive oxygen species at body temperature. Exemplary of the compound administered in each case is ethyl nitrite.
Owner:DUKE UNIV

Treating pulmonary disorders with gaseous agent causing repletion of GSNO

InactiveUS7045152B2Increased GSNO or glutathione (GSH)Avoid failureOrganic active ingredientsPeptide/protein ingredientsDiseaseMedicine
Pulmonary disorders in which the GSNO pool or glutathione pool in the lung is depleted and where reactive oxygen species in lung are increased, are treated by delivering into the lung as a gas, agent causing repletion or increase of the GSNO pool or protection against toxicity and does so independently of reaction with oxygen. Agents include ethyl nitrite, NOCl, NOBr, NOF, NOCN, N2O3, HNO, and H2S. Optionally, N-acetylcysteine, ascorbate, H2S or HNO is administered in addition to other GSNO repleting agent to potentiate the effect of said agent.
Owner:DUKE UNIV

Oxygen and nitrogen enriched atmospheres in aircraft

A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber membranes used to separate normal air into oxygen rich and nitrogen rich fractions in the oxygen enrichment unit are subjected to a modification technique before the tubes are coated with a selective polymer.
Owner:SMARTMEMBRANE CORP

Pulverulent mixtures containing hydrogen peroxide and hydrophobized silicon dioxide

The present invention is directed to pulverulent mixtures comprising hydrogen peroxide and hydrophobized, pyrogenically prepared silicon dioxide powder, preferably with a methanol wettability of at least 40. The pulverulent mixtures exhibit good storage stability and can be used for the controlled release of hydrogen peroxide and / or oxygen. The invention also includes methods of making these pulverulent mixtures and methods of using the mixtures in detergents, cleaning compositions, topical medications, antimicrobials and other products.
Owner:EVONIK DEGUSSA GMBH

Degassing membrane for dialysis

The degasser can have a degassing membrane that can be constructed from non-porous silica. The degassing membrane can be highly permeable to carbon dioxide but less permeable oxygen or nitrogen gases. Pressure in the dialysate and the degasser can be controlled in order to control the amount of carbon dioxide and other gases in dialysate leaving the degasser. The degassing membrane may be placed in a degassing module in a dialysate flow path to remove dissolved carbon dioxide from the dialysate.
Owner:MOZARC MEDICAL US LLC

Oxygen scavenger

InactiveUS20020100896A1Adequate effectExhibit excellent oxygen scavenging effectHydrogenOther chemical processesNaphthoquinonePhotochemistry
An oxygen scavenger, containing a heterocyclic compound having a N-substituted amino group as an effective component, can adequately exhibit the oxygen scavenging effect in not only feed water lines for high temperature water, a boiler, and steam and condensate return lines, but also feed water lines for low temperature water. The oxygen scavenger contains: a heterocyclic compound having a N-substituted amino group or a salt thereof; a hydroxybenzene derivative and / or a naphthoquinone derivative; and neutral amine.
Owner:KURITA WATER INDUSTRIES LTD

Generation of high octane hydrogen gas from acetic acid

A device and method for generation of high octane hydrogen gas from acetic acid includes providing an electrolysis unit having a cathode, an anode, neutral elements, gaskets, and an electrolyte including acetic acid; applying pulse-width-modulated power to the cathode and anode to produce hydrogen and oxygen gas from the electrolyte; transporting the gas and some of the electrolyte from the electrolysis unit to a reservoir; transporting the electrolyte in the reservoir back to the electrolysis unit, thereby reusing the electrolyte; refilling the reservoir with distilled water when the level of electrolyte in the reservoir is low; utilizing a condensate trap to dump water that condenses out of the gas in the reservoir; and transporting the gas in the condensate trap for use. The hydrogen and oxygen gas may be provided to the air intake of an engine.
Owner:HAYLIN HYDROGEN SYST

Method for preparing arsenic trioxide from arsenic sulfide waste

The invention provides a method for preparing arsenic trioxide from arsenic sulfide waste. The arsenic sulfide waste is soaked in a sodium hydroxide solution to extract arsenic sulfide, arsenic sulfide mixes with an excessive amount of arsenic acid, and the mixture reacts at a temperature ranging from 40 DEG C to 95 DEG C for 0.5 to 3 hours, to produce a mixture containing arsenous acid and elemental sulfur; the mixture containing arsenous acid and elemental sulfur mixes with 2 to 5 times (by mass) of water and then oxygen gas is introduced so that arsenous acid is oxidized into arsenic acid, and the reaction product is filtered to remove elemental sulfur and thus to produce an arsenic acid solution; and the arsenic acid solution is reduced by sulfur dioxide gas to arsenous acid with a lower solubility, the reaction liquid is distilled under a reduced pressure to produce a saturated solution of arsenous acid, the saturated solution of arsenous acid is cooled so that arsenous acid is crystallized and then filtered to produce a filter cake of arsenous acid, and the filter cake of arsenous acid is dried and pulverized to obtain an arsenic trioxide product. The method has a short process flow, increases the recovery rate of arsenic, avoids the production of secondary pollutants, adopts simple equipment, greatly reduces the cost of arsenic recovery and is worthy to be widely applied.
Owner:JIANGSU ZHONGKE MACHINERY

Method and device for the autonomous production, preparation, and supply of breathing gas to divers at extreme depths

The invention relates to a fully closed circuit-pendulum-storage system wherein a given amount of a ready to breathe gas mixture made of various inert gases including hydrogen and oxygen is continuously conveyed between two highly pressurized gas containers. Initially, the required breathing gas leaves the pressurized gas container and reaches the circuit at a constant dosage according to the overdosing principle. The circuit consists of an inhalation bag, a diving helmet, an exhalation bag and a single or double pack CO2 absorption filter. At a depth of 0-100 m a mixture of oxygen, nitrogen and helium is used as a breathing gas. At a depth of 100-700 m a given amount of hydrogen is mixed therewith according to the wishes of the diver, whereby the oxygen content should not exceed 3 vol. %. When the diver emerges from a depth of over 100 m, the hydrogen is removed from the breathing gas and from the circuit by means of palladium membrane diffusion or catalytic water conversion. The removal of hydrogen is controlled by hydrogen detectors. At this point only, the oxygen content can exceed 3 vol %.
Owner:TODOROV GUEORGUI

Hydrogen lighter-than-air ship

A lighter-than-air ship using hydrogen or other gas as a lift gas with at least one hydrogen fuel cell aboard. The fuel cell can draw hydrogen fuel from the lift gas reservoir to produce electricity both for the ship's use and optionally for propulsion. The waste product of the fuel cell is water which can be used for the needs of a crew on the ship. The hydrogen lift gas chamber, which can be compartmentalized for lift control, can be surrounded by a safety jacket filled with an inert gas and contain optional hydrogen and / or oxygen sensors.
Owner:ORO GRANDE TECH

Skin lotion comprising aqueous dispersion of ultra-fine noble metal particles

Use in cosmetic lotions a dispersion solution of super-fine noble metal particles obtained by burning a mixture gas of oxygen and hydrogen in high-pressure water and using the combustion gas to melt noble metal and thus causing super-fine noble metal particles to micro-disperse in water, wherein such production process is implemented using an apparatus for producing a cosmetic lotion that comprises a pressure-resistant container equipped with a high-pressure water tank, an injection nozzle for mixture gas of oxygen and hydrogen, a noble metal bar, an ignition device and a combustion chamber.
Owner:PHILD CO LTD

Method for biologically removing sulfureted hydrogen from marsh gas

The invention discloses a method for biologically removing sulfureted hydrogen from a marsh gas, which comprises the following steps: (1) introducing the marsh gas from an air inlet of a filling spray absorber; (2) removing the H2S from the marsh gas by filling and reacting the marsh gas with spray liquid, wherein the spray liquid is a solution containing NaOH and Na2CO3; (3) discharging the purified marsh gas and the spray liquid absorbing the H2S from the absorber; (4) delivering a part of the spray liquid discharged from the absorber back to the absorber for circulated spray, adding a nutrient fluid into the other part of the spray liquid and then delivering the other part of the spray liquid into a biological filtration tower, wherein the nutrient fluid contains a nitrogen source and a phosphorus source; (5) spraying the mixed solution of the spray liquid and the nutrient fluid delivered to the biological filtration tower onto a biological filter material, introducing air from the air inlet of the biological filtration tower to allow microorganisms in the biological filter material to convert sulphions in the mixed solution into sulphate with the oxygen in the air; and (6) delivering the solution which is obtained by the treatment in the step (5) and serves as the spray liquid into the packed spray absorber for cycle use.
Owner:ZHEJIANG UNIV

Regeneration method of dehydrogenation catalyst for low-carbon alkane

The invention discloses a regeneration method of a dehydrogenation catalyst for low-carbon alkane, and belongs to the field of regeneration techniques of catalysts. The regeneration method of the dehydrogenation catalyst for the low-carbon alkane, which is provided by the invention, comprises the following processes: (1), introducing an inert gas into an inactivated dehydrogenation catalyst, and performing sweeping to lower the temperature to be 200 DEG C; (2), switching the inert gas to a gas mixture containing a reducing gas, and changing the temperature and sweeping to remove a carbon deposit by multiple procedures; (3), carrying out sweeping treatment again by using the inert gas. The catalyst treated by the three steps can be used for the dehydrogenation reaction of the low-carbon alkane continuously by switching a reaction gas. The regeneration method of the dehydrogenation catalyst for the low-carbon alkane, which is provided by the invention, avoids the use of an oxygen gas, so as to have high regeneration efficiency, reduce the reoccurring reaction time of the catalyst, and prevent the catalyst from being sintered; and the catalytic activity of the regenerated catalyst reaches the level of a fresh catalyst.
Owner:GUANGDONG UNIV OF TECH

Method for extracting, oxidizing and desulfuring fuel oil in ionic liquid

The invention discloses a method for extracting, oxidizing and desulfuring fuel oil in ionic liquid. The method comprises the steps of mixing the ionic liquid, a catalyst and the fuel oil in ratio, and adding the mixture into a high-pressure kettle, wherein a ratio of the total volume of the ionic liquid and the fuel oil to the volume of the high-pressure kettle is 3: (6-10); sealing the high-pressure kettle, feeding oxygen into the high-pressure kettle, performing replacement for three times till the oxygen pressure reaches 0.1-0.5MPa, switching off an oxygen valve, and switching on magnetic stirring and oil bath heating, wherein a ratio of the volume of an extracting agent to the volume of the fuel oil is (0.1-5): 1 and a mole ratio of the catalyst to the total sulfur content of the fuel oil is (0.1-5): 1; stirring and heating to 30-130 DEG C, and generating reaction for 1-5 hours. The method has the advantages of mild operation condition, no use of sacrificial agent and low cost.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI

Oxygen-enriched and flameless gas burner and control method thereof

The invention discloses an oxygen-enriched and flameless gas burner which comprises a burner casing, an air distribution plate, a prechamber, an oxygen nozzle and a fuel nozzle. A channel penetrating a wall body of a furnace wall of a heating furnace is arranged on the furnace wall. The burner casing is installed on one side of the channel, and the prechamber is formed in the space in the channel. A combustion-supporting air channel is arranged on the burner casing, and the fuel nozzle penetrates through the burner casing in an inserting mode. A fuel channel is arranged on the fuel nozzle. An air inlet and a fuel inlet are arranged on the air distribution plate. The oxygen nozzle is provided with an oxygen pipe and installed on the furnace wall of the heating furnace, the oxygen channel is communicated with a hearth of the heating furnace, the oxygen nozzle is slantingly arranged on the furnace wall of the heating furnace, and a spray head end of the oxygen nozzle is close to the prechamber. The oxygen-enriched and flameless gas burner organically combines the dilution combustion technology and the oxygen-enriched combustion technolog, achieves flameless combustion in the furnace, meanwhile optimizing temperature distribution in the furnace, and reduces NOx emission.
Owner:WISDRI WUHAN WIS IND FURNACE

H2-O2-H2O fuel generator

A Hydrogen fuel producing electrolytic device incorporating an electrode assembly producing Hydrogen and Oxygen gases without the aid of chemical electrolytes. The device will supply any combustion based devices using fossil, synthetic, or organic fueled engines. The present invention is used to augment or support any combustion process thereby increasing fuel efficiency or lowering adverse greenhouse gas emissions. An embodiment of the present invention causes self induced, pumping removing the produced H2 and O2 gases efficiently at a rapid rate from the cathode and anode electrode surfaces. Non rigid mountings of individual tubular anodes and or cathodes one within the other allowed for effect in the form of micro oscillations through electro attractive forces of the anodes and cathodes in a non uniform electrolytic fluid.
Owner:SCHADECK MATHEW A +1

Integration of catalytic SO2 oxidation and oxyfuel sour compression

Sulfur dioxide (SO2) may be removed from carbon dioxide feed gas by contacting the carbon dioxide at an elevated temperature and an elevated pressure with a catalyst for oxidizing SO2, in the presence of oxygen (O2) to convert SO2 to sulfur trioxide (SO3); contacting SO3 in the resultant SO3-enriched carbon dioxide gas with water to produce sulfuric acid and SO2-depleted carbon dioxide gas; and separating the sulfuric acid from the SO2-depleted carbon dioxide gas. If present, NOx is also removed from the carbon dioxide feed gas as nitric acid to produce SO2-depleted, NOx-lean carbon dioxide gas. The method has particular application in the removal of SO2 and NOx from flue gas produced by oxyfuel combustion of a hydrocarbon fuel or carbonaceous fuel, within or downstream of the CO2 compression train of a CO2 recovery and purification system.
Owner:AIR PROD & CHEM INC

Targeted oxygen delivery via intravenous or intra-arterial infusion of oxygenated polymerized hemoglobin solutions

InactiveUS20100209532A1Restore oxygenationImprove integrityBiocideMembranesVeinOxygenated Hemoglobin
A method of delivering oxygen to a tissue, a blood vessel, an organ, or a region of an organ, under an ischemic condition, or prophylactically preventing occurrence of an ischemic condition, of a subject, comprising the step of administering to the subject an oxygenated hemoglobin solution, wherein the oxygenated hemoglobin solution includes polymerized hemoglobin, and wherein about 80% by weight, or greater, of the polymerized hemoglobin is oxyhemoglobin.
Owner:HEMOGLOBIN OXYGEN THERAPEUTICS
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