171results about How to "Reduce the amount of oxygen" patented technology

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.

In a semiconductor device including a transistor including an oxide semiconductor film and a protective film over the transistor, an oxide insulating film containing oxygen in excess of the stoichiometric composition is formed as the protective film under the following conditions: a substrate placed in a treatment chamber evacuated to a vacuum level is held at a temperature higher than or equal to 180° C. and lower than or equal to 260° C.; a source gas is introduced into the treatment chamber so that the pressure in the treatment chamber is set to be higher than or equal to 100 Pa and lower than or equal to 250 Pa; and a high-frequency power higher than or equal to 0.17 W / cm2 and lower than or equal to 0.5 W / cm2 is supplied to an electrode provided in the treatment chamber.

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 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.

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.

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 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.

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.

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.