172results about How to "Reduce the amount of oxygen" patented technology

A power generation system capable of eliminating NO, components in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a gas turbine engine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor; and an electrical generator.

A battery pack includes a battery having a risk of releasing a gas under abnormal conditions, a case that accommodates the battery, and an oxygen reducing portion that reduces an amount of oxygen within the case.

A process for preparing a polymer having a 2,5-furandicarboxylate moiety within the polymer backbone, and having a number average molecular weight of at least 25,000, includes a transesterification step, a polycondensation step, a drying and / or crystallizing step, and a step where the polymer is subjected to post condensation conditions, and to a polyester-containing bottle or film or fibre-containing woven or non-woven object made from melt-processing poly(ethylene-2,5-furandicarboxylate), where the poly(ethylene-2,5-furandicarboxylate) is obtainable by the process of the invention.

Process for producing a copper-containing aqueous solution, in which a copper mass is dissolved in the presence of air in an aqueous leach liquor containing monoethanolamine and an acid, wherein the amount of acid equivalents is between 0.05 and about 0.7 times the equivalents of monoethanolamine, and wherein the rate of copper dissolution into the aqueous leach liquor is greater than about 4.3 grams of copper per liter of leach liquor per hour until a product having at least about 80 grams per liter is obtained.

A semiconductor device including a transistor having excellent electrical characteristics is provided. Alternatively, a semiconductor device having a high aperture ratio and including a capacitor capable of increasing capacitance is provided. The semiconductor device includes a gate electrode, an oxide semiconductor film overlapping the gate electrode, an oxide insulating film in contact with the oxide semiconductor film, a first oxygen barrier film between the gate electrode and the oxide semiconductor film, and a second oxygen barrier film in contact with the first oxygen barrier film. The oxide semiconductor film and the oxide insulating film are provided on an inner side of the first oxygen barrier film and the second oxygen barrier film.

This method of upgrading a biomass comprises: an upgrading step for performing upgrading treatment of a cellulose based biomass with an oxygen / carbon atomic ratio of at least 0.5, in presence of water and under a pressure of at least saturated water vapor pressure, and reducing said oxygen / carbon atomic ratio of said biomass to no more than 0.38, and a separation step for separating an upgraded reactant obtained from said upgrading step into a solid component and a liquid component.

The invention relates to the technical field of electric pressure cooker, and discloses a fresh-keeping electric pressure cooker, which comprises a pot body, an outer pot, an inner pot, a sealing ring, an outer cover and an inner cover, wherein a ring with an upward opening is arranged outside the mouth of the inner pot. Groove, the sealing ring includes an upper lip and a lower lip, the upper lip fits the inside of the inner cover, and the lower lip extends into the circumferential groove when the inner cover is fastened; a hose is connected to the inner cover, and one end of the hose is sealed and connected to the The inner side of the inner cover; the pot body is provided with a micro vacuum pump, and the other end of the hose is connected to the micro vacuum pump; the inner cover is provided with a pressure detection device for detecting the gas pressure in the inner pot. The invention solves the problem of short preservation time for the remaining food in the pot, starts the micro-vacuum pump, draws out the residual air in the pot, and the pressure in the pot becomes smaller so that the lower lip is close to the inner wall of the circumferential groove, and the outside air cannot enter, achieving For the purpose of keeping the remaining food fresh for a long time, there is no need for the user to pour out the remaining food for fresh keeping, which greatly facilitates the use of the user.

Provided is a semiconductor device which can suppress an increase in oxygen vacancies in an oxide semiconductor layer and a manufacturing method of the semiconductor device. The semiconductor device includes a first oxide semiconductor layer over the first insulating layer; a second oxide semiconductor layer over the first oxide semiconductor layer; a third oxide semiconductor layer over the second oxide semiconductor layer; a source electrode layer and a drain electrode layer each over the third oxide semiconductor layer; a fourth semiconductor layer over the source and drain electrode layers, and the third oxide semiconductor layer; a gate insulating layer over the fourth oxide semiconductor layer; a gate electrode layer over the gate electrode layer and overlapping with the source and drain electrode layers, and the fourth oxide semiconductor layer; and a second insulating layer over the first insulating layer, and the source, gate, and drain electrode layers.

A nitride semi-conductor light emitting device has a p-type nitride semi-conductor layer 7, an n-type nitride semi-conductor layer 3, and a light emission layer 6 which is interposed between the p-type nitride semi-conductor layer 7 and the n-type nitride semi-conductor layer 3. The light emission layer 6 has a quantum well structure with a barrier layer 6b and a well layer 6a. The barrier layer 6b is formed of AlaGabIn(1-a-b)N (0<a<1, 0<b<1, 1−a−b>0), and contains a first impurity at a concentration of A greater than zero. The well layer 6a is formed of AlcGadIn(1-c-d)N (0<c<1, c<a, 0<d<1, 1−c−d>0), and contains a second impurity at a concentration of B equal to or greater than zero. In the nitride semi-conductor light emitting device of the present invention, the concentration of A is larger than that of B, in order that the barrier layer 6b has a concentration of oxygen smaller than that in the well layer 6a.

NOx emissions may be lowered from the combustion of coal in a furnace. The method includes providing a furnace having a combustion chamber in which is combusted coal and oxygen. Further, coal and a metal containing combustion catalyst are delivered into the combustion chamber together with a reduced amount of oxygen as compared the amount of oxygen combusted in the combustion chamber without the metal-containing combustion catalyst. The thermal efficiency and combustion stability of the furnace are not decreased as a result of the reduction combustion air and provision of metal containing additives to the combustion chamber.

A process of preparing articles having gaseous NO sequestered therein is disclosed, as well as articles prepared thereby. Also disclosed are articles having gaseous NO sequestered therewithin and having reduced amount of oxygen-containing and / or nitrogen-containing reactive species. Also disclosed are processes of preparing packaged articles having a non-gas permeable package that comprises gaseous NO therein and packaged articles made therefrom. Also disclosed are charging devices which can be utilized in the above-described processes. The articles prepared by the above-described processes are preferably medical devices such as indwelling catheters, intubation devices and tampons. Tampons having sequestered therein gaseous NO, uses thereof and processes of preparing same are also disclosed.

In a hybrid vehicle, when the shift position SP is set to the S position at which a driver is allowed to select any one of the shift positions SP1 to SP6, and it is determined that warm-up of a purifying device has not been completed, the target air-fuel ratio AF* is set based on the S position / low coolant temperature-time target air-fuel ratio setting map. The air-fuel ratio AF* set based on the S position / low coolant temperature-time target air-fuel ratio setting map tends to be richer than the target air-fuel ratio AF* set based on any one of the normal-time target air-fuel ratio setting map and the D position / low coolant temperature-time target air-fuel ratio setting map that are used when the D position is selected.

A power generation system capable of eliminating NO components in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a turbine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor feeding gas to the combustor and turbine; and an electrical generator.

A molded oxygen absorbent composition is composed of a molded product of an oxygen absorbent composition which contains an oxygen absorbing substance, water or moisture, and a swelling component capable of being swelled with water or moisture. The molded oxygen absorbent composition is reduced in its size and excellent in oxygen absorbing property.

A multistage oxygen-added catalytic partial oxidation process and apparatus for converting H2S in an acid gas stream to elemental sulfur and water are disclosed. Each staged addition of oxygen or air at the top of the catalyst bed and at points along the catalyst bed maintain oxygen-limited H2S catalytic partial oxidation conditions whereby incidental SO2 production is minimized.

According to an exemplary embodiment of the invention an oxygen supply system for an aircraft is provided, wherein the said system comprises a control valve, a reservoir bag, a respiration device and a sensor device, wherein the control valve is designed in such a way that oxygen can be supplied to the reservoir bag until a predetermined quantity of oxygen is adjusted in the reservoir bag. The respiration device may be designed in such a way that breathing gas can be provided for a passenger. The sensor device may be designed in such a way that an exhalation is detectable. The reservoir bag may he designed in such a way that a predetermined quantity of oxygen can be metered into the reservoir bag during the exhalation. Moreover the reservoir bag may be designed in such a way that breathing gas can be supplied to the respiration device in a pulse-like fashion. The oxygen supply system may comprise a first operation mode and a second operation mode. Furthermore a method for supplying a passenger with oxygen in an aircraft is provided.

A multistage oxygen-added catalytic partial oxidation process and apparatus for converting H2S in an acid gas stream to elemental sulfur and water are disclosed. Each staged addition of oxygen or air at the top of the catalyst bed and at points along the catalyst bed maintain oxygen-limited H2S catalytic partial oxidation conditions whereby incidental SO2 production is minimized.

The present invention is directed to a novel process and method for treating nitrogen that is contained in an organic waste stream using aeration at a preferred predetermined mass loading in an aerobic volume followed by treatment in an anoxic / anaerobic volume. The present invention also includes the solid humus material produced from the treatment of an organic waste stream aeration at a predetermined loading in an aerobic volume followed by treatment in an anoxic / anaerobic volume and the removal of said humus solids.

The present invention provides a chemical reactor with which nitrogen oxide emission control can be performed very efficiently at a low applied voltage when an excess of oxygen is present in a combustion exhaust gas. The present invention is a chemical reactor in which the upper cathode, lower cathode, and anode that make the chemical reactor are a mixture of an electron-conductive substance and an ion-conductive substance, and the electron-conductive substance and ion-conductive substance of the upper cathode are mixed in a specific ratio, which makes it possible to lower the applied voltage and reduce the power consumption of the chemical reactor, and is also a method for the emission control of nitrogen oxides in which this chemical reactor is used.

A molded oxygen absorbent composition and a process of producing the molded oxygen absorbent composition are disclosed. The molded oxygen absorbent composition is composed of a molded product of an oxygen absorbent composition which contains an oxygen absorbing substance, water or moisture, and a swelling component capable of being swelled with water or moisture. The product is formed by pressure molding the composition. The molded oxygen absorbent composition is reduced in its size and excellent in oxygen absorbing property.

A gas sensor is provided for determining the concentration of a gas component in a measuring gas, in particular for determining the oxygen concentration in the exhaust gas of internal combustion engines, which has an electrode pair situated on a solid-state electrolyte and made up of an outer pump electrode and an inner pump electrode, which is accessible to the measuring gas supplied via a diffusion barrier, the electrode pairs being triggered in a clocked manner and having a potential of varying polarity applied in each clock-pulse period. To improve the measuring precision of the gas sensor without additional electrodes, a cavity is situated between the diffusion barrier and the inner pump electrode, the cavity serving as storage volume for the oxygen pumped through the solid-state electrolyte.

A field effect transistor comprises a SiC substrate 1, a source 3a and a drain 3b formed on the surface of the SiC substrate 1, an insulating structure comprising an AlN layer 5 formed in contact with the SiC surface and having a thickness of one molecule-layer or greater, and a SiO2 layer formed thereon, and a gate electrode 15 formed on the insulation structure. Leakage current can be controlled while the state of interface with SiC is maintained in a good condition.

A stream of primarily water is treated to remove oxygen before injecting the water into an underground hydrocarbon reservoir. The pressure of water moving through a conduit (12) is reduced to a low level to maximize the dissolution of oxygen and other gases that are dissolved in the water. The resulting two phase mixture is separated by centrifugal action caused by rotating the water inside the conduit. The rotation is induced by flowing the water past fixed spin blades (20). The oxygen and any other gases are removed from the center of the conduit through a gas pipe (30) and eventually pass out of the system to the atmosphere via a vacuum pump (50). As an enhancement, nitrogen may be introduced upstream of the centrifuge. The nitrogen injection saturates the water-gas solution to improve the dissolution of oxygen from the low pressure water, and also improves the efficiency of the gas-liquid separation by adjusting the gas volume fraction downstream of the fixed spin blades (20) to an optimal proportion of the total flow.

To obtain a spouted-pouch package having a high degree of deoxidation by a method in which even a liquid filling which readily lathers can be packed while being inhibited from lathering. [MEANS FOR SOLVING PROBLEMS] A before-packing deoxidation step (1) is performed before a liquid filling is packed into a pouch. The step (1) comprises: a vacuum step (1-1) in which the pouch is evacuated under vacuum; an inert-gas blow step (1-2) in which an inert gas is blown into the pouch after the vacuum step; and a gas-diminishing vacuum step (1-3) in which the gas in the pouch after the inert-gas blow step is discharged under vacuum to diminish the gas in the pouch to a given amount. Thereafter, the pouch is evacuated in a second before-packing evacuation step (2-1) and then packed with the filling. After the packing, gas replacement is conducted.

A cultivating method and system of mushrooms, a rearing rack and a cultivating method and rearing system of Ganoderma lucidum are provided, thereby inhibiting infection of bacteria without inhibiting the growth of fruit bodies of mushrooms, and improving crop yield of mushrooms. The cultivating method of mushrooms comprises the steps of: cultivating a plurality of the rearing racks containing the mushroom inoculated medium(hyphae) covered with an air-penetrating cover in a cultivating chamber at a certain temperature and humidity for a certain period of time; and pulling out the racks from the cultivating chamber, wherein the cultivation period of time for each rack is different from others; the temperature is 5 to 40 deg. C and the humidity is 40 to 85%; a light is irradiated to the rearing racks; and the mushroom is Ganoderma lucidum. The rearing rack(20) comprises a mushroom inoculated medium(hyphae) storing portion(22a, 22b, 22c); a cover installed in the mushroom inoculated medium(hyphae) storing portion(22a, 22b, 22c) to encompass the mushroom inoculated medium(hyphae)(10); and a moving device(24) which moves the mushroom inoculated medium(hyphae) storing portion within a cultivating chamber.

A double-air-gap ozone generating device comprises a barrel-shaped outer electrode, an inner electrode which is arranged inside the outer electrode, a left pattern plate, a right pattern plate, a medium pipe which is arranged between the outer electrode and the inner electrode, a left end cover, a right end cover and an electrode which penetrates through the left end cover and is connected with the inner electrode, wherein the left pattern plate and the right pattern plate are used for supporting the outer electrode, the left end cover and the right end cover are used for fixing the inner electrode, the outer electrode and the medium pipe, the gap between the outer electrode and the medium pipe is an outer gap, the gap between the medium pipe and the inner electrode is an inner gap, three position limiting steps are arranged on one sides, oppositely arranged, of the left end cover and the right end cover, and axial grooves are formed in the left end cover and the right end cover along the axial line direction. The double air gap ozone generation device has the advantages that under the situation that the size of the volume of a discharging unit is unchanged, the size of discharging area is multiply increased, ozone concentration and ozone generating efficiency are improved, and the manufacture cost and the operation cost of the ozone generator are reduced.

An oxygen supply system for an aircraft includes a control valve, a reservoir bag, a respiration device and a sensor device, wherein the control valve is designed in such a way that oxygen can be supplied to the reservoir bag until a predetermined quantity of oxygen is adjusted in the reservoir bag. The respiration device may be designed in such a way that breathing gas can be provided for a passenger. The sensor device may be designed in such a way that an exhalation is detectable. The reservoir bag may be designed in such a way that a predetermined quantity of oxygen can be metered into the reservoir bag during the exhalation. The reservoir bag may be designed in such a way that breathing gas can be supplied to the respiration device in a pulse-like fashion. The oxygen supply system may include a first and a second operation mode.

The invention discloses a fireproof door. The fireproof door includes a narrow-side door frame made of metal materials, a concave cavity is formed in one of the surfaces of the door frame, one or morefireproof plates are arranged at the bottom of the concave cavity in an elastic hinging mode, the tops of the fireproof plates are moving ends, the outer side surfaces of the moving ends of the topsof the fireproof plates are sealed and limited by a limiting and sealing mechanism, the fireproof plates are parallel to the horizontal plane in the natural state and are laid in the concave cavity equidistantly, a filling cavity is formed between the adjacent fireproof plates, and the filling cavities are internally filled with fire insulation materials. According to the fireproof door, in case of a fire, a fire source can be flipped, thus the fire source stays away from a door body, the inside fireproof plates without making contact with the fire source are used for continuously preventing the fire, fireproof time of the fireproof plates is greatly increased, and a great deal of time is earned for rescuing and escaping.