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421results about How to "Increase absorption rate" patented technology

Photochemical advanced oxygenation-based simultaneous desulfuration and denitration system

The invention discloses a photochemical advanced oxygenation-based simultaneous desulfuration and denitration system. The system is provided with a burning and exhausting system consisting of a burner, an electrostatic dust collector, a heat exchanger, a spray tower, a liquid adding tower and a chimney, wherein fume generated by the burner enters the electrostatic dust collector, fume particles are removed from the fume by the electrostatic dust collector, the fume enters the heat exchanger and is cooled by the heat exchanger, and then the fume enters the spray tower; an UV light tube is arranged in the spray tower; hydrogen peroxide solution from the liquid adding tower is pumped by a circulating pump, sprayed into the spray tower through an atomizing nozzle and is activated by ultraviolet light to decompose hydrogen peroxide and then generate hydroxyl radicals (.OH) with strong oxidizing property; after being contacted with the fume in the spray tower, the hydroxyl radicals undergoes a gas-liquid absorption reaction with the fume to oxidize and remove NOx and SO2 in the fume; the fume, after being absorbed and washed, enters the chimney from the top of the spray tower and is exhausted; and sulfuric acid solution and salpeter solution generated in the spray tower are pumped into the separating column by the circulating pump and are reacted with added ammonia water to generate agricultural fertilizers including ammonium sulfate and ammonium nitrate.
Owner:SOUTHEAST UNIV

Method and apparatus for desulfurizing exhaust gas of seagoing vessel

The invention relates to a method and a device for desulfurizing exhaust smoke of a sea-going ship, which uses sea water to reduce discharge of sulfur dioxide and other pollutants of the sea-going ship. The method comprises the following steps of: sea water scrubbing, acidic sea water transferring, acid separating treatment, water discharge and so on. The device comprises a scrubber and a water-saving acid separator, wherein, the upper part of the scrubber is provided with a scrubbing layer, and is communicated with a scrubbing sea water pump through a pipeline; the lower part of the scrubber is provided with a cooling layer; one end of the scrubber is communicated with a smoke exhaust pipe of a ship engine through a scrubbing inlet pipe, while the other end of the scrubber is connected with a scrubbing exhaust pipe; the lower part of the scrubber is communicated with the water-saving acid separator; and the water-saving acid separator is connected with a mixed sea water pump, a draught fan and a main discharge pipe for suitably discharging sea water which is subject to the acid separating treatment. The method and the device have the advantages of high desulfurizing efficiency, small sea water consumption, low equipment manufacturing cost and low running cost.
Owner:WUHAN SAFE ENVIRONMENTAL PROJECT TECH INC

Method for preparing water absorption polymer with high liquid absorption speed, dispersity and dried degree

The invention discloses a preparation method of absorbent polymer which is characterized in high speed rate of liquid absorption, good dispersibility and high dry-touch degree. Acrylic acid is added into sodium hydroxide aqueous solution, which is uniformly mixed with acrylamide and then crosslinking agent, and foam stabilizer aqueous solution is added; while being aerated with nitrogen gas, the solution is ordinally added with polymerization initiator azodi (2-amidinopropane hydrochloride) aqueous solution, ammonium persulphate aqueous solution, sodium bisulfite aqueous solution and uniformly mixed; the aeration of nitrogen gas is stopped, and when the temperature of the solution is raised to 35 to 45 DEG C, the solution is added with foamer aqueous solution and uniformly mixed, so that porous gel is obtained; when the temperature is raised to 100 DEG C to 110 DEG C, the porous gel is put in the temperature environment of 80 to 90 DEG C for two the three hours; after being cooled down, the porous gel is taken out of a container, scissored into pieces, dried, crumbled and filtered, and grains are collected; crosslinking treatment agent is sprayed on the surface of grains, and after stirring and heating, the absorbent polymer is obtained. In three minutes, the volume of saline absorbed by the product prepared by the invention can reach 70 ml/gSAP.
Owner:段梦麟

Super-clean exhausting integral tower and treating technology for coal-fired boiler exhaust gas

The invention discloses a super-clean exhausting integral tower and treating technology for coal-fired boiler exhaust gas. The treating technology includes the steps that the exhaust gas is fed into an absorption tower through an exhaust gas inlet of the absorption tower and upwards flows, desulfurization spraying and primary demisting are sequentially carried out, ozone oxidation, alkali liquor atomization mixing denitration and wet-type electric precipitation are carried out at the same time, secondary demisting is finally carried out, and then the exhaust gas is exhausted through an exhaust gas outlet in the top of the absorption tower; ozone and denitration absorption liquor are fed into an oxidation and denitration section through an air way and a liquor way respectively and mixed through double-fluid denitration spraying guns to be atomized and sprayed into the exhaust gas; slurry generated by desulfurization spraying falls into a slurry pond, and air is introduced into the slurry pond for oxidation; atomization alkaline liquor is captured through wet-type electric precipitation, and washing water generated in the wet-type electric precipitation process and washing water generated after wet-type electric precipitation are collected through a liquid collecting tank and temporarily stored and filtered outside the absorption tower to be reused as washing water. By means of the super-clean exhausting integral tower and treating technology, the desulfurization efficiency of the absorption tower is improved; meanwhile, denitration, dust removing and demisting can be achieved, and therefore the coal-fired exhaust gas can meet the stricter exhausting standard.
Owner:ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECH

Zr-Co-Re thin film getter provided with protection layer, and preparation method thereof

The invention relates to a Zr-Co-Re thin film getter provided with a protection layer, and a preparation method thereof. The Zr-Co-Re thin film getter is composed of a getter layer and the protection layer; main components of the getter layer are Zr, Co, and one or more selected form rare earth elements La, Ce, Pr, and Nd; and main component of the protection layer is Ni. Pulsed laser deposition film plating is adopted, and deposition of the double-layer structured thin film getter containing the protection layer and the getter layer on texture monocrystalline silicon is carried out. The texture substrate is capable of increasing effective area of the getter thin film, and so that inspiratory flow rate and inspiratory capacity are increased. The surface of the getter layer is plated with a Ni protection layer; Ni is capable of realizing dissociation of hydrogen, and increasing absorption amount of hydrogen; and the Ni protection layer is capable of inhibiting absorption of oxygen and reducing activation temperature. Activation of the Zr-Co-Re thin film getter can be realized in roasting processes at a temperature of 180 to 350 DEG C; after roasting, the Zr-Co-Re thin film getter possesses excellent inspiration performance at room temperature, can be used for internal gas residue removing of high vacuum microelectronic devices.
Owner:GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG

Synthetic method for instant-absorption type super absorbent resin

InactiveCN103408689AImprove gel barrier phenomenonThe effect of absorption ratio is smallCross-linkOil phase
The invention relates to a synthetic method for a high-speed instant-absorption type super absorbent resin. The synthetic method comprises the following steps: 1) adding a copolymerization water-soluble monomer, a cross-linking agent and an initiator into a mixed aqueous solution of acrylic acid and sodium hydroxide, placing an obtained mixture in a glass container and carrying out stirring so as to prepare a water phase solution; 2) with a dispersant as a continuous phase of inverse emulsion polymerization, adding the dispersant into a reaction flask and then adding an emulsifier and a copolymerization hydrophobic monomer to prepare an oil phase solution; and 3) adding the water phase solution into the oil phase solution drop by drop, carrying out mixing and high speed stirring for emulsification, allowing a temperature to gradually rise after uniform stirring of a system, wherein time for a later-period polymerization reaction is 2.5 to 3.5 h, cooling to room temperature after completion of the reaction and successively carrying out filtering, washing and vacuum drying so as to obtain the white powdery water-absorption resin. The invention has the following beneficial effects: since synthesis conditions are simple, the imbibition rate of the resin can be improved while high water absorbency is maintained.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Ultrasound micro-needle composite transdermal drug delivery device

The invention relates to an ultrasound micro-needle composite transdermal drug delivery device which comprises an ultrasound transdermal drug delivery system and a porous micro-needle transdermal drug delivery system. The ultrasound transdermal drug delivery system comprises an ultrasonator, a control mechanism and an ultrasonic wave transmission dielectric layer arranged on the outer side of an end plate of a shell; the porous micro-needle transdermal drug delivery system comprises a drug storage pool, a liquid inlet pipe, a miniature peristaltic pump, a liquid outlet pipe, a drug inlet pool and poly-p-xylylene thin film, a plurality of micro needles are arranged on the poly-p-xylylene thin film, one end of each micro needle is communicated with the drug inlet pool, and the other end of each micro needle is used for being in contact with the skin for drug delivery. The ultrasound micro-needle composite transdermal drug delivery device solves the technical problems that irritabilities of patients are prone to being caused by an existing transdermal drug delivery device, the existing transdermal drug delivery device is low in drug delivery speed and poor in drug delivery effect, and the lengths of the micro needles cannot be adjusted when the existing transdermal drug delivery device acts on different parts of the human body so that the existing transdermal drug delivery device is limited in application range; the ultrasound micro-needle composite transdermal drug delivery device is high in drug delivery speed, good in drug delivery effect and suitable for application and popularization.
Owner:HENAN UNIV OF SCI & TECH

Non-aqueous decarburization solution for capturing carbon dioxide in mixed gas and application thereof

The invention provides non-aqueous decarburization solution for capturing carbon dioxide in a mixed gas, and belongs to the technical field of capturing of carbon dioxide gas. The invention relates to a non-aqueous decarburization solution, wherein a main absorption component is N-ethyldiethanolamine, and a solvent is N,N-diethylethanolamine. Because the non-aqueous decarburization solution has a high boiling point and low viscosity, uses tertiary amine capable of participating in CO2 absorption as the solvent, and uses secondary amine with a fast absorption speed and a high absorption amount, and easy to regenerate as the main absorption solvent, the absorption capacity, purification degree and desorption speed for carbon dioxide are increased, the temperature range of the reaction is expanded, the volume of a regeneration tower is reduced, the energy consumption of the regeneration is greatly reduced, and the equipment investment and operation cost are reduced. The non-aqueous decarburization solution provided by the invention is mainly used for capturing carbon dioxide in the tail gases of multiple chemical reactions, the tail gases of steel plants and cement plants, ore decomposition gas, combustion flue gas, natural gas, city gas and marsh gas, and has wide application prospect.
Owner:DALIAN UNIV OF TECH

Astaxanthin self-emulsifying soft capsule preparation and preparation thereof

The invention discloses an astaxanthin self-emulsifying soft capsule preparation and a method for preparing the same, which relates to an astaxanthin preparation, in particular to the astaxanthin self-emulsifying soft capsule preparation capable of self-emulsifying in a body after oral administration as well as the method for preparing the same. The invention provides the astaxanthin self-emulsifying soft capsule preparation which has high bioavailability and good oxidation resistance and can self-emulsify in the body after the oral administration. The compositions of the astaxanthin self-emulsifying soft capsule preparation and the content by mass ratio are as follows: astaxanthin raw material: oil phase: emulsifier: coemulsifier is equal to 1: 20-60: 10-70: 0-30, wherein, an oil phase adopts natural vegetable oil or fatty acid ester, the emulsifier adopts nonionic emulsifier, and the coemulsifier adopts chain alcohol or short chain alcohol. The astaxanthin raw material, the oil phase, the emulsifier and the coemulsifier are added into a container, N2 is aerated into the container, and astaxanthin self-emulsifier is obtained by ultrasonic vibration; and the astaxanthin self-emulsifier is cooled to be the room temperature and is pressed to obtain the astaxanthin self-emulsifying soft capsule preparation.
Owner:XIAMEN UNIV
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