171results 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 NO_x 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.

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 Al_aGa_bIn_(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 Al_cGa_dIn_(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.

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 switch device according to an embodiment of the technology includes a first electrode, a second electrode that faces the first electrode, and a switch layer provided between the first electrode and the second electrode. The switch layer includes a chalcogen element. The switch device further includes a diffusion suppressing layer that is in contact with at least a portion of a surface of the switch layer, and suppresses diffusion of oxygen into the switch layer.

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 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 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 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.

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.

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.