4results about How to "Raise oxygen partial pressure" patented technology

This utility model discloses a micro hyperbaric oxygen chamber and its highly integrated micro hyperbaric oxygen chamber main unit, relating to the field of micro hyperbaric oxygen chamber technology. The highly integrated micro hyperbaric oxygen chamber main unit includes: a shell; an oxygen generation and pressurization device, which includes an air compressor for pressurizing air to a set pressure and a molecular sieve for oxygen generation, the air compressor being connected to the chamber body via an air supply pipe; a pressure regulating and filtration device, which is used to regulate the concentration and pressure of oxygen, the molecular sieve being connected to the pressure regulating and filtration device, the pressure regulating and filtration device being connected to the chamber body via an oxygen supply pipe; a water treatment device, which includes a collection tank and a water processor located in the collection tank, the shell having a guide pipe for guiding the condensate generated by the chamber's air conditioning system and the pressure regulating and filtration device into the collection tank, the water processor being used to vaporize the condensate in the collection tank; and a control device. This device can effectively treat the chamber's air conditioning water and the main unit's condensate, integrating oxygen generation, pressurization, and condensate treatment functions into one unit.

The invention relates to the field of catalyst regeneration, and discloses a regeneration method of a catalyst for preparing olefin through alkane dehydrogenation, and the method comprises the following steps: (1) carrying out first charring on a spent catalyst in a charring zone of a first regenerator; (2) performing second charring on the product obtained in the step (1) in a charring area of a second regenerator to obtain a regenerated catalyst; wherein the pressure of the charring area of the second regenerator is 0.01-0.3 MPa higher than that of the charring area of the first regenerator. According to the method, the regeneration efficiency of the catalyst is improved, the problem of activity reduction caused by difficult removal of deposited carbon of the catalyst is solved, and the operation cycle of the device is prolonged.

The present invention provides a positive electrode material and a preparation method and application thereof. The positive electrode material includes secondary particles formed by the accumulation of primary particles; the surface of the secondary particles is coated with a first coating layer, and the primary particles include primary particles with a self-coating layer; wherein the average size of the primary particles is ≤500nm. The positive electrode material with a polycrystalline structure provided by the present invention is not only coated on the surface of the secondary particles, but the primary particles also have a self-coating layer. On the one hand, it has excellent antioxidant and corrosion resistance, which helps to reduce the side reactions between the positive electrode active material and the electrolyte and improve the cycle performance of the battery; on the other hand, it helps to suppress the stress and strain of the matrix particles, inhibit the release of oxygen and the dissolution of transition metals, prevent the formation of CEI and the deconstruction of the near-surface structure, and improve the crystalline phase structure stability of the positive electrode active material.

The present application relates to the technical field of interventional medical instruments, in particular to a pressure-controllable super-high-oxygen myocardial perfusion device and a pressure control method. The device comprises a normal-pressure oxygenation cavity, a heat exchange cavity and a high-pressure oxygenation cavity connected in sequence, and a main circulation loop and a static high-pressure oxygenation bypass; the inlet and outlet of the high-pressure oxygenation cavity are both provided with a blockage type peristaltic pump with pumping and sealing functions, the peristaltic pump is internally provided with an oxygenation membrane, and is configured with a pressurizing mechanism for simultaneously pressurizing liquid sides and oxygen sides on both sides of the oxygenation membrane, and a heat exchange mechanism for cooling the perfusion liquid to about 14 DEG C. The present application can prepare super-high-oxygen myocardial protective liquid with oxygen partial pressure higher than 700 mmHg through static, low-temperature and high-pressure oxygenation while maintaining extracorporeal circulation continuous perfusion, significantly improve the myocardial protection effect, and has the advantages of compact structure, precise control and safe operation.