154 results about "Oxygent" patented technology

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.

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.

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.

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.

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/NO_x 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/NO_x in the presence of oxygen or reactive oxygen species at body temperature. Exemplary of the compound administered in each case is ethyl nitrite.

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.

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.

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.

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.

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.

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 %.

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.

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.

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.

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.

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.

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.