39results about How to "Increase gas holdup" patented technology

The invention provides a supergravity nano-microbubble generating device and a reaction system. In the device, a liquid phase is a continuous phase, and a gas phase is a dispersed phase; gas enters the interior from a hollow shaft, and primary shearing is carried out on the gas through shearing action of aeration micropores for forming bubbles; then the bubbles are quickly separated from the surface of the rotating shaft under the action of the rotating shaft which rotates at a high speed; and secondary shearing is carried out under the strong shearing force of a super-gravity environment generated by the rotating shaft to form nano-microbubbles. The nano-microbubbles have the advantages of being fast and stable and having a small average particle size, the average particle size of the formed nano-microbubbles is in a range of from 800 nm to 50 microns, and the range of the average particle size of the bubbles can be adjusted and controlled by adjusting the rotating speed of the rotating shaft. According to the device, on one hand, the problem that a liquid phase in a conventional supergravity device is discontinuous and a liquid phase containing nano-microbubbles cannot be formedis solved, and on the other hand, the problem that nano-microbubbles are clustered on the surface of a static microporous medium is solved.

The invention relates to a gas distributor and a system comprising the distributor. The gas distributor of the present invention includes an annular gas distribution pipe, a gas distribution box located in the ring of the annular gas distribution pipe, and an air inlet pipe connected to the gas distribution pipe and the gas distribution box respectively; The trachea is respectively connected to the gas distribution pipe and the gas distribution box through at least two divided air intake branches, so as to realize the fixing and air intake of the gas distribution pipe and the gas distribution box; the surfaces of the gas distribution pipe and the gas distribution box are uniform Has pores. The gas distributor of the invention has the advantages of simple structure, stable operation and good uniform distribution performance.

The invention provides a supergravity nano-microbubble generating device and a reaction system. In the device, the liquid phase is a continuous phase, and the gas phase is a dispersed phase. The gas enters the interior through a hollow shaft, and the gas is subjected to shearing action by the aeration micropores. The first shearing forms bubbles, and then the bubbles are quickly separated from the surface of the rotating shaft under the action of the high-speed rotating shaft, and are subjected to secondary shearing under the strong shearing force of the supergravity environment formed by the rotating shaft to form nano-micro bubbles, which are fast, stable, and stable. The advantage of the small average particle size is that the average particle size of the formed nano-micro bubbles is between 800 nanometers and 50 microns, and the average particle size of the bubbles can be controlled by adjusting the rotation speed of the rotating shaft. On the one hand, the device overcomes the problem that the liquid phase is discontinuous and cannot form a liquid phase containing nano-micro-bubbles in the traditional hypergravity device, and on the other hand, it overcomes the problem of the aggregation of nano-micro-bubbles on the surface of the static microporous medium.

The invention discloses a magnetic-stirring gas-rising internal circulation denitrification type methane anaerobic oxidation bacterium enrichment device and method. The device comprises a reactor body, a reaction vessel, a reactor cover plate, a flow guiding cylinder, an effluent biomass entrapping ring an aeration pipe, wherein the reactor body is divided into a gas rising region and a liquid falling region by the flow guiding cylinder, the gas rising region is located between the reaction vessel and the flow guiding cylinder, the effluent biomass entrapping ring is arranged at the upper part of the gas rising region, the aeration pipe is arranged at the bottom part of the gas rising region, the liquid falling region is located inside the flow guiding cylinder, a temperature probe is arranged at the upper part of the liquid falling region, a stirring magneton is arranged at the bottom part of the liquid falling region, and the stirring magneton and the temperature probe are controlled by a constant temperature magnetic stirrer. According to the invention, a gas-rising type reactor and a magnetic stirring reactor are ingeniously combined, thus the mass transfer area is enlarged, the transfer performance is enhanced, the enrichment efficiency is increased, the cyclic utilization of methane gas is realized, the utilization rate of methane is improved, and the discharge amount ofexhaust gas is reduced.

The invention relates to a wing oxidation spray gun which pertains to the technical field of wet FGD equipment in a power plant and is characterized in that the extremity of the current linear oxidation spray gun is arranged into an elbow of 90 degrees and the elbow section is provided with flat plate wings that are fixedly connected with the elbow section. Two flat plate wings are symmetrically arranged at the both sides of the elbow section and are parallel to or form an angle of 2-8 degrees with the cross section of the elbow section. The invention is installed and applied in an absorptiontower of a wet FGD system and aims at providing sufficient air for absorption and oxidation reaction of sulfur dioxide in flue gas. Traditional linear oxidation spray gun has the disadvantages of lowoxidation efficiency, large energy consumption, large cavitation effect on a stirrer, etc., while the wing oxidation spray gun can effectively solve the problems. The invention is characterized by reasonable design, simple structure, easy production, convenient application, good stirring effect and high gas-holdup, which can not only improve oxidation efficiency but also reduce the energy consumption of an oxidation air blower.

The invention aims to provide a marine exhaust gas SOx removal device for a rotary spraying refluxing bubble tower. The marine exhaust gas SOx removal device comprises a washing tower, a NaOH solution storage cabin, a waste liquid buffer tank and waste liquid centrifugal treatment equipment; the washing tower comprises a washing tower outer layer cylinder; a washing tower inner layer cylinder and a spiral rising washing pipeline are arranged in the washing tower outer layer cylinder; an exhaust gas inlet, an exhaust gas outlet and a washing liquid outlet are respectively formed in the outer wall of the washing tower outer layer cylinder; the exhaust gas inlet is connected with a marine diesel engine exhaust pipe; the exhaust gas outlet is communicated with the atmosphere; the washing liquid outlet is communicated with the waste liquid buffer tank; the waste liquid buffer tank is connected with the waste liquid centrifugal treatment equipment; the waste liquid centrifugal treatment equipment is connected with each of an oil contamination storage cabin and a heavy residue storage cabin. According to the marine exhaust gas SOx removal device, SO2 in exhaust gas is subjected to washing treatment by adopting two technologies, namely a novel rotary spraying washing technology and a novel pneumatic stirring bubbling washing technology; the contact path between the washing liquid and the exhaust gas is increased; the acting time is prolonged; the acting area is increased, so that the exhaust gas is treated sufficiently.

The invention discloses a seawater desulfurization auxiliary equipment system and a desulfurization method. The system comprises a dust removal device 1, an air separation device 2, a nitrogen compressor 3, a GLS (Gas-Liquid-Solid Chromatograph) seawater heat exchanger 4, a siphon well 5 and an absorption tower 6, wherein the air separation device 2 is connected with the nitrogen compressor 3, the dust removal device 1 and the GLS seawater heat exchanger 4 respectively; the GLS seawater heat exchanger 4 is connected with the absorption tower 6 and the siphon well 5 respectively. By utilizing the air separation device and the nitrogen compressor, most nitrogen gas is enriched; on one hand, the enriched nitrogen gas can be used for other purposes and comprehensive utilization of seawater is realized; on the other hand, internal pressure of flue gas is reduced and accurate control on flow speed of the flue gas is realized; then by utilizing the GLS seawater heat exchanger, the flue gas exchanges heat with circulation seawater entering a heat exchange device, and the temperature of the flue gas is controlled to be an optimal absorption temperature, so that the desulfurization efficiency is improved, the desulfurization time is shortened, and the electricity consumption in operation is reduced.

The present invention relates to a gas-liquid stirring reactor for synthesizing acrylic acid and ester through an acetylene carbonylation method. According to the gas-liquid stirring reactor, a reaction kettle with a steam heating jacket is adopted, the inner side of the kettle wall is provided with a baffle, an upper entering type stirring shaft is adopted, double layers of stirring paddles are adopted, the upper layer blade is a run-off type blade, the lower layer blade is an axial flow type blade and is arranged inside a diversion cylinder, and a porous gas distributor is arranged between the axial flow stirring paddle and the bottom of the stirring kettle. Compared with the gas-liquid stirring reactor in the prior art, the gas-liquid stirring reactor of the present invention has the following characteristics that: radial flow formation on the upper end blade zone is achieved, and regular and rapid axial flow formation on the lower end blade zone is achieved, such that bubbles in the radial flow zone are well dispersed into the lower segment kettle under a fluid drag force effect, and a flow type structure is formed through combination of the baffle so as to substantially improve effects of mixing and heat transfer, uniformly beak the bubbles, uniformly disperse the bubbles and effectively increase a gas-liquid mass transfer performance, wherein the flow type structure is that: two small axial flow circulations are nested inside the whole kettle large axial flow circulation. In addition, the gas-liquid stirring reactor is further suitable for other atmospheric or pressurized gas-liquid reactions.

The invention discloses a butane catalytic oxidation reaction device, which includes a reactor, a waste heat recovery boiler and a gas-liquid separation tank. The reactor includes a cylinder body and a gas distributor. There is a gas phase material outlet on the top, an oxygen inlet and a circulating butane inlet on the lower side wall of the cylinder, and a reactant outlet on the upper side wall of the cylinder, and the oxygen inlet is connected with the gas distributor; the gas phase material outlet is through a pipeline Connect the waste heat recovery boiler, the waste heat recovery boiler is connected to the gas-liquid separation tank through pipelines, the gas-liquid separation tank is connected to the oxygen inlet through the tail gas circulation pipeline, the gas-liquid separation tank is connected to the circulating butane inlet through the condensate circulation pipeline, and the butane raw material inlet is connected to the fresh Butane liquid delivery pipe connection. The reactor of the invention is suitable for the catalytic oxidation reaction of butane, has high reaction efficiency, is easy to operate continuously, and has stable production; the oxygen loss of the reaction tail gas is small, and the reaction heat is fully recovered and utilized.

The invention discloses a diversion tube loop reactor, and relates to an integrated multi-stage series two-stage conical diversion tube reactor sewage treatment device applied to the treatment of monosodium glutamate industrial wastewater. The PLC automatic control system is connected to a three-point water inlet system, a pulsed aeration system, a multi-stage series inductance cylinder reaction device and a membrane interception effluent system. connection, the bottom of the multi-stage series diversion cylinder reaction device is connected to the pulsed aeration system through a pipeline, and one side of the multi-stage series diversion cylinder reaction device is connected to the membrane interception effluent system through a pipeline; small footprint, The gas consumption is small, the fluid flow condition is good, and the treatment effect is strong.