833 results about "Oxygen enhanced" patented technology

The present invention relates generally to systems and methods for increasing oxygen availability to implantable devices. The preferred embodiments provide a membrane system configured to provide protection of the device from the biological environment and / or a catalyst for enabling an enzymatic reaction, wherein the membrane system includes a polymer formed from a high oxygen soluble material. The high oxygen soluble polymer material is disposed adjacent to an oxygen-utilizing source on the implantable device so as to dynamically retain high oxygen availability to the oxygen-utilizing source during oxygen deficits. Membrane systems of the preferred embodiments are useful for implantable devices with oxygen-utilizing sources and / or that function in low oxygen environments, such as enzyme-based electrochemical sensors and cell transplantation devices.

An oxygen enriched boiler having a burner subassembly and a steam subassembly is disclosed. The burner subassembly has a fuel inlet, an oxidant inlet, a combustion chamber, a flue gas composition detector and a flue gas outlet. The fuel inlet provides fuel to the combustion chamber, the oxidant inlet provides an oxygen-enriched inlet stream to the combustion chamber, the combustion chamber burns the fuel and the flue gas composition detector measures at least one characteristic of the flue gas. The steam subassembly has a supply water inlet, a heat exchange zone, a water drum, a steam quality actuator and a steam outlet. The supply water inlet provides feed water to the heat exchange zone, the heat exchange zone transfers heat generated by combustion of the fuel to the water to generate steam, the water drum receives the heated water and steam from the heat transfer zone and maintains the water and steam at a selected steam pressure and water level, and the steam quality actuator regulates at least one characteristic of the steam. Flue gas characteristics, as well as other boiler performance variables, are monitored. At least one controller actuates on the oxidant injections to control combustion. The controller calculates the optimum oxidant distribution in real-time for a series of injection points to minimize undesired flue gas emissions while maintaining the desired steam conditions and boiler operating conditions.

The present invention relates to a composition comprising a hydrogel polymer having less than 100% haze, and distributed therein an oxygen enhancing effective amount of oxygen permeable particles having an oxygen permeability of at least about 100 barrer, average particle size less than about 5000 nm.

A method for generating hydrogen and / or synthesis gas in a production facility where little or no export steam is produced. Most or all of the high pressure steam produced from the waste heat from the process is used in the steam-hydrocarbon reformer with little or no steam export. The method uses oxygen enhanced combustion which may involve oxygen lancing and / or oxygen-enrichment. Plant efficiencies using the method and prior art-type methods are compared.

Fuel such as coal is combusted by feeding fuel and gaseous oxidant containing more than 21 vol. % oxygen, and preferably 21.8 to 29 vol. % oxygen, to a combustion stage at a stoichiometric ratio below that at which, if the stage were operated with air as the only oxidant, the same amount of NOx would be produced, and combusting the fuel and oxidant in said stage to produce combustion products and unburned fuel.

An oxygen setpoint controller (SPC) and a user's display for a rebreathing apparatus wherein the user exhales oxygen depleted breath into a closed rebreathing loop, the CO2 is scrubbed from the exhaled gases, oxygen is added to the rebreathing loop to maintain the oxygen at a specified partial pressure, and the oxygen enhanced gases in the rebreathing are provided to the user. The SPC is able to detect the failure of any of the oxygen sensors and provide an alarm condition to the user. The SPC further operates to provide dive data such as rate of ascent, time of dive, depth, and PPO2 to the uses, and to store and retain dive data for further review. The SPC further provides numerical dive data to a heads up display (HUD). The HUD further includes a tricolor LED displaying selected analog parameters.