92results about How to "Increased phase boundary area" patented technology

The invention discloses an organic waste gas microemulsion absorbent, and a preparation method and application thereof. The absorbent comprises the following components in percentage by mass: 99.8 to 99.4 percent of water, 0.01 to 2 percent of surfactant, 0.05 to 2 percent of aid and 0.1 to 2 percent of inorganic salt. The preparation method comprises the following steps of: dissolving the surfactant with the water to obtain solution of surfactant; dissolving the aid and the inorganic salt in the water to obtain solution of aid; and mixing the solution of surfactant and the solution of aid and continuously stirring the mixed solution at the same time to obtain the organic waste gas microemulsion absorbent. The organic waste gas microemulsion absorbent is suitable for treating organic waste gases, and has the advantages of broad raw material sources, low cost, low saturated vapor pressure, non-toxicity, stable chemical properties, less corrosion to equipment, high organic waste gas removal efficiency, no need of pre-treating the waste gases, less investment, low running cost and the like; and the saturated absorbent can be recycled so as to realize the comprehensive utilization of resources.

The invention discloses a TC4 titanium alloy solid welding wire for large-thickness ultra-narrow-gap laser wire filling welding and a preparation method thereof. The invention belongs to the technical field of welding materials. The invention provides the TC4 titanium alloy solid welding wire for large-thickness ultra-narrow-gap laser wire filling welding and the preparation method thereof. The solid welding wire is prepared from chemical components in percentage by mass as follows: 5.0%-7.0% of Al, 4.0%-6.0% of V, 1.5%-2.5% of Mo, 0.2%-0.5% of Cr, 0.5%-1.5% of Zr and the balance of Ti. The method comprises the following steps: weighing raw materials according to the chemical components of the welding wire, mixing the raw materials, pressing into an electrode block, welding into a consumable electrode, carrying out primary smelting to obtain a primary cast ingot, carrying out secondary smelting to obtain a titanium alloy cast ingot, turning a skin, cutting a dead head, forging into a square billet, rolling, drawing, straightening and polishing to obtain a wire material, carrying out vacuum annealing, carrying out drawing diameter reduction, stress relief annealing and cleaning in a vacuum tube type annealing furnace, winding on a wire reel, and vacuum plastic packaging to obtain the large-thickness ultra-narrow-gap TC4 titanium alloy solid welding wire for laser wire filling welding.

The invention provides a reaction system and a method for preparing formic acid by hydrogenating carbon dioxide. The reaction system for preparing formic acid by hydrogenating carbon dioxide comprisesa first reaction rectifying tower, a second reaction rectifying tower and a fine reactor, a hydrogen inlet, a carbon dioxide inlet and a solvent and catalyst mixing inlet are sequentially formed in the side wall of the reaction rectifying tower from top to bottom; a pneumatic micro-interface generator and a hydraulic micro-interface generator are arranged in the reaction rectifying tower, the pneumatic micro-interface generator is arranged between tower plates in the reactive distillation tower, is communicated with the hydrogen inlet and is used for dispersing and crushing incoming hydrogen,and the hydraulic micro-interface generator is arranged close to the bottom of the reaction rectifying tower, and is communicated with the carbon dioxide inlet and is used for dispersing and crushingentering carbon dioxide; and the solvent and catalyst mixing inlet is formed in the bottom of the reaction rectifying tower. The reaction system provided by the invention reduces the temperature andpressure of the hydrogenation reaction.

The invention discloses an oscillatory flow reactor of a packed bed. The oscillatory flow reactor comprises an oscillation generating mechanism, an inlet segment, a reaction segment and an outlet segment which are sequentially connected, wherein the inlet segment is composed of an air inlet segment and a liquid inlet segment which are connected in series, and the outlet segment is composed of an air outlet segment and a liquid outlet segment which are connected in series; the air inlet segment is provided with an air feeding hole and an air distributor located at the downstream of an air discharging hole; the liquid inlet segment is provided with a liquid feeding hole and a liquid distributor located at the downstream of a liquid discharging hole; the reaction segment is provided with a vertically-arranged reaction tube which is filled with filler or solid catalyst particles in the middle, a supporting device at the bottom and a pressing device at the top. The oscillatory flow reactor of the packed bed is suitable for industrial gas-liquid reaction taking the liquid phase as a main body, gas-liquid-liquid reaction or gas-liquid-solid three-phase reaction system containing a solid catalyst and can continuously and stably operate for a long term.

The invention relates to an intelligent control reaction system and process for preparing butyl octanol through carbonylation of propylene. The intelligent control reaction system comprises an OXO unit, a butyraldehyde treatment unit, a butyraldehyde condensation unit, a hydrogenation reaction unit, a purification unit, a micro-interface generator and an intelligent control unit. According to theinvention, propylene and synthesis gas are treated by additionally arranging the micro-interface generator, the propylene and the synthesis gas are crushed to form micron-scale bubbles, and the micron-scale bubbles and a triphenylphosphine solution of a rhodium catalyst are mixed to form a gas-liquid emulsion, so the phase interface area of a gas phase and a liquid phase is increased, the OXO efficiency of the propylene and the synthesis gas is improved, the utilization rate of propylene is improved, and the production cost of butanol and octanol is reduced; and through the intelligent controlunit, a worker can know the real-time condition of each data returned by intelligent sensing modules at any time through mobile equipment, and can realize accurate control on the inner temperature and inner pressure of the whole reactor by changing preset values, so reaction efficiency is further improved.

The invention discloses a bottom-mounted micro-interface enhanced reaction device and method for residual oil hydrogenation reaction. The bottom-mounted micro-interface enhanced reaction device comprises a suspended bed reactor, an air inlet device, a liquid inlet device, at least one bubble breaker and a three-phase separator. Hydrogen and a residual oil raw material with a catalyst are preheatedand then enter the bubble breakers to form a micron-sized bubble system, and then the micron-sized bubble system enters the suspended bed reactor, flows from bottom to top and is subjected to a hydrogenation reaction under the action of the catalyst. After the reaction, the product enters the three-phase separator for separation, the gas is discharged from a gas phase outlet, the liquid is extracted from a liquid phase outlet, the solid slag is discharged from a solid phase outlet, and the gas, the liquid and the solid slag are separately collected for subsequent treatment. The reaction device and method provided by the invention have the advantages of ultralow hydrogenation reaction pressure, small gas-liquid ratio, large gas-liquid mass transfer area, high reaction rate, low energy consumption, flexible process, high production safety and the like.

The invention provides a formic acid preparation system and method. The formic acid preparation system comprises a reactive distillation column, and a hydrogen inlet, a carbon dioxide inlet and a solvent and catalyst mixed inlet are sequentially formed in the side wall of the reactive distillation column from top to bottom; a plurality of micro-interface generators are arranged in the reactive distillation column, the micro-interface generators are arranged among a plurality of tower plates in the reactive distillation column, and one of the micro-interface generators is communicated with a hydrogen inlet and is used for dispersing and crushing incoming hydrogen; another micro-interface generator is communicated with a carbon dioxide inlet and is used for dispersing and crushing entering carbon dioxide, and the rest micro-interface generators are communicated with the hydrogen inlet or the carbon dioxide inlet. The formic acid preparation system solves the problems of low reaction rateand low mass transfer rate between reaction phase interfaces in the prior art, lowers the temperature and pressure of the hydrogenation reaction, and enhances the reaction efficiency.

The invention provides a micro-interface fermentation system and a fermentation method thereof. The micro-interface fermentation system comprises a fermentation tank and a control system. The top of the fermentation tank is provided with a bacterial liquid inlet and a feed liquid inlet for bacterial liquid and feed liquid to enter, and the bottom of the fermentation tank is provided with a liquidoutlet for discharging fermentation products; liquid ejectors and two micro-interface generators are arranged in the fermentation tank, the two micro-interface generators are arranged at the bottom inthe fermentation tank side by side from top to bottom, the liquid ejector is arranged at the upper part in the fermentation tank, and a cleaning water inlet and air inlets are formed in the side wallof the fermentation tank; and the air inlets are communicated into the micro-interface generators through pipelines and are in one-to-one correspondence with the micro-interface generators. The micro-interface fermentation system provided by the invention solves the problem of low fermentation efficiency caused by the fact that air and fermentation liquor cannot be fully mixed in the fermentationtank in the prior art, and saves the labor cost of cleaning and field operation.

The invention belongs to the field of chemical engineering technique and equipment, and particularly relates to a method for continuously producing polycarbonate by copolymerizing carbon dioxide and propylene oxide with a circulation flow reactor. The method comprises the following steps: introducing dry inert gas to replace atmosphere and remove water in the circulation flow reactor; adding propylene oxide, catalyst and carbon dioxide; copolymerizing the carbon dioxide and the propylene oxide under certain temperature and pressure to generate polycarbonate; and separating to obtain the aliphatic polycarbonate product, wherein the unreacted raw materials and gas are redistributed into the circulation flow reactor for cyclic utilization. The circulation flow reactor comprises a reactor shell, a raw material gas inlet, a gas distributor, a guide flow cylinder, a liquid feed port and a gas outlet, wherein a multilayer large-pore screen can be arranged in the guide flow cylinder, so that the circulating flow is divided into at least two stage when the pores of the guide flow cylinder wall are opened. The invention has the advantages of simple structure, low investment, good gas-liquid contact, good mass transfer, short time, high efficiency and the like, and is convenient to operate.

The invention provides a reinforced micro-interface reaction system and method for preparing formic acid through carbon dioxide hydrogenation. The reinforced micro-interface reaction system for preparing formic acid through carbon dioxide hydrogenation comprises a first reactive distillation column, a second reactive distillation column and a fine reactor, wherein the first reactive distillation column and the second reactive distillation column are connected in parallel; a hydrogen inlet, a carbon dioxide inlet and a solvent and catalyst mixing inlet are sequentially formed in the side wallsof the first reactive distillation tower and the second reactive distillation tower from top to bottom; a flow-separating micro-interface generator is arranged in each of the first reaction rectifyingtower, the second reaction rectifying tower and the fine reactor, wherein the flow-separating micro-interface generator is formed by arranging a plurality of flow-separating channels on a micro-interface generator body; and the hydrogen inlet and the carbon dioxide inlet are connected with any of the flow-separating micro-interface generator arranged in the first reaction rectifying tower and thesecond reaction rectifying tower. According to the enhanced micro-interface reaction system, the temperature and pressure of hydrogenation reaction are reduced.

The invention relates to an automatic strengthening system and process for preparing hydrogen peroxide based on an anthraquinone method. The automatic strengthening system comprises a raw material supply unit, a reaction unit, a separation unit, a micro-interface generator and an automatic control unit. According to the invention, the micro-interface generator is arranged in the reaction unit, hydrogen and air are crushed into micron-sized small bubbles in the micro-interface generator, and the micro-bubbles have additional pressure and are not easy to coalesce with each other when colliding with each other, so that the hydrogen has a larger phase interface area compared with hydrogen before being crushed, therefore, the hydrogen microbubbles can be more easily mixed with an anthraquinonederivative-containing working solution to form a gas-liquid emulsion, and the air bubbles can be more easily mixed with a 2-ethylanthraquinone-containing hydrogenated solution to form a gas-liquid emulsion, thereby achieving the effect of enhancing mass transfer within a lower preset operation condition range, and increasing the yield of hydrogenation reaction and oxidation reaction.

The invention discloses a process for removing tobacco odour, which comprises the following steps of: removing dust and watersoluble harmful substances or constituents in gas to be treated by using a wet scrubber, removing water mist in the gas by using a demister, oxidizing the harmful substances or constituents in the gas by using a photocatalytic odour processor, and discharging the processed gas to the air by using a main air blower. The wet scrubber is a hypergravity gas dust-removing and sulphur-removing integrated machine, the gas to be treated is washed with circulating water, and the circulating water is cooled by a cooling air blower. The photocatalytic odour processor is a tube self-cleaning photocatalytic odour processor. The hypergravity gas dust-removing and sulphur-removing integrated machine and the photocatalytic odour processor can be used independently and combined for use. Both the hypergravity gas dust-removing and sulphur-removing integrated machine (Patent No. ZL200920233065.5) and the tube self-cleaning photocatalytic odour processor (Patent No. 201010273561.0) are inventions of the applicant, have applied the national patent, and are batch-produced, and are put on the market and gained public praise.

The invention provides an erythromycin processing system and a processing method thereof. The erythromycin processing system comprises a fermentation device and a control system, wherein the fermentation device is formed by connecting two fermentation tanks in parallel, a bacterial liquid inlet and a feed liquid inlet for bacterial liquid and feed liquid to enter are formed in the top of each fermentation tank, a liquid outlet is formed in the bottom of each fermentation tank and is used for discharging a fermentation product; liquid ejectors and micro-interface generators are arranged in eachfermentation tank, the micro-interface generator positioned at the upper part is close to the top of the fermentation tank, the micro-interface generator positioned at the lower part is close to thebottom of the fermentation tank, the liquid ejectors are arranged at the upper part in the fermentation tank, two liquid ejectors are respectively arranged on the side walls of the fermentation tank,and another liquid ejector is arranged opposite to the micro-interface generator at the upper part. The erythromycin processing system solves the problem that air and fermentation liquor cannot be fully mixed in the fermentation tank in the prior art.

The invention provides a gasification furnace chilling chamber containing a flow-guiding cylinder and an application method thereof. The gasification furnace chilling chamber comprises a shell, wherein a downcomer is arranged in the shell; the outer side of the downcomer is sleeved by a coaxial flow-guiding cylinder; an annular gap is formed between the flow-guiding cylinder and the downcomer; oneend of the downcomer is connected with a gasification furnace; the other end of the downcomer is provided with a gas distribution device which is a conical section in butt joint with the outer edge of the downcomer; and the conical section is provided with gas holes. According to the invention, liquid circulation is formed through arrangement of the flow-guiding cylinder, so deposition of fine coal ash particles is prevented, and the problem of blockage caused by fine particles is effectively solved; meanwhile, through arrangement of the gas distribution device, small bubbles can be effectively formed; the phase boundary area of the bubbles is increased; the humidifying, dust-removing, ash-removing and cooling effects of a water bath are greatly improved; thus, the situation that synthesis gas carries excessive coal ash to enter a next working section is reduced.

The invention provides a method for adjusting and controlling magnesium hydroxide with the low specific surface area. The shape-controllable magnesium hydroxide with the low specific surface area is prepared through a method of combination of the precipitation process of a confined space and hydro-thermal treatment, wherein the specific surface area is equal to or smaller than 5 m<2>/g. The methodcomprises the specific processes: a magnesium chloride aqueous solution and a sodium hydroxide aqueous solution are prepared correspondingly and continuously introduced into a microreactor to be subject to a precipitation reaction, reaction slurry is subjected to hydro-thermal treatment twice after flowing out from the microreactor, after hydro-thermal treatment is completed, the slurry is centrifuged, washed and dried, and then the magnesium hydroxide with the low specific surface area is obtained. The shape of the magnesium hydroxide with the low specific surface area can be adjusted and controlled by changing the molar ratio of Mg2+ and OH-. The precipitation process is achieved in the microreactor, the reaction process is semicontinuous and easy to amplify, and thus an obtained product is low in specific surface area, controllable in shape and good in lot-to-lot repeatability.

The invention provides a micro-interface enhanced reaction system for preparing polypropylene. The system is characterized by comprising a prepolymerization reactor and a polymerization reactor whichare connected in sequence, the prepolymerization reactor is provided with a prepolymerization micro-interface generator used for dispersing crushed materials into micro-bubbles, and the polymerizationreactor is provided with a micro-interface generator set used for dispersing the crushed materials into micro-bubbles; a polymerization reaction product outlet is formed in the bottom of the polymerization reactor and is connected with a flash tank for decomposing a catalyst in a polymer; a product outlet for discharging a polypropylene product is formed in the bottom of the flash tank. The micro-interface generator is arranged on the prepolymerization reactor, and meanwhile, the micro-interface generator unit is arranged on the polymerization reactor, so that the mass transfer area between agas-phase material and a liquid-phase material is increased, the reaction efficiency is improved, and the energy consumption is reduced; and moreover, the temperature and the pressure in the polymerization reactor are reduced, and the safety and the stability of the whole system are improved.

The invention provides a caprolactam production wastewater treatment system and method. The treatment system comprises a raw water tank, a wastewater heat exchanger, a wastewater heater and an oxidation reactor which are sequentially connected, wherein a material inlet, a material outlet, a heat source inlet and a heat source outlet are formed in the wastewater heat exchanger; oxidized water from the oxidation reactor enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a finished product tank, the material inlet is connected with the raw water tank, the material outlet is connected with the wastewater heater, a micro-interface generation system is arranged in the oxidation reactor, and the micro-interface generation system is used for dispersing the crushed gas into bubbles. According to the treatment system, after the micro-interface generator is arranged, the contact of thereaction phase interface is improved, and a good wastewater treatment effect can be obtained without using a catalyst or by adding a small amount of the catalyst.

The invention provides a black and odorous water body treatment system and a black and odorous water body treatment method applying the system. The black and odorous water body treatment system comprises a water inlet tank, an ozone generator, an oxidation tower, an MABR reactor, a water outlet tank and a tail gas destroying device, wherein a micro-interface generator is also arranged at the bottom of the oxidation tower and is used for crushing gas emitted by the ozone generator into bubbles. According to the invention, the micro-interface generator can smash bubbles into micron-sized bubbles, so that the phase interface area between a gas phase and a liquid phase is increased, and ozone gas can be better dissolved in black and odorous water to form a gas-liquid emulsion for increasing the reaction efficiency; and the ozone gas in the black and odorous water body is crushed into small bubbles, and the volume of the gas is reduced, so that the floating buoyancy of the bubbles is reduced, the retention time of the ozone gas in the black and odorous water body is prolonged, and the reaction efficiency is further improved.

The invention discloses a laterally-arranged micro-interface enhanced reaction device and method for hydrogenation reactions of residual oil. The laterally-arranged micro-interface enhanced reaction device comprises a bubbling type reactor, a gas inlet device, a liquid inlet device, at least one bubble breaker, a gas-liquid separator and a circulating pump. Hydrogen and a residual oil raw materialwith a catalyst are preheated and then enter the bubble breakers to form a micron-sized bubble system; then the micron-sized bubble system enters the bubbling type reactor and flows from bottom to top, and a hydrogenation reaction is carried out under the action of the catalyst; and a product obtained after completion of the reaction enters the gas-liquid separator for separation, gas is discharged from a gas phase outlet, liquid with the catalyst enters the circulating pump from a liquid phase outlet and is subsequently conveyed, a part of the liquid is extracted as hydrogenated oil, and therest part of the liquid circularly enters the bubble breaker and is used for bubble breaking according to process requirements. The reaction device and method provided by the invention have the advantages of ultralow hydrogenation reaction pressure, small gas-liquid ratio, large gas-liquid mass transfer area, high reaction rate, low energy consumption, flexible process, high production safety andthe like.

The invention provides a black and odorous water remote control system and a black and odorous water remote control method applying the system. The black and odorous water remote control system comprises a water inlet tank, an ozone generator, an oxidation tower, an MABR reactor, a water outlet tank, a tail gas destroying device and an intelligent control unit, wherein a micro-interface generatoris also arranged at the bottom of the oxidation tower and is used for crushing gas emitted by the ozone generator into bubbles. According to the invention, the micro-interface generator can smash bubbles into micron-sized bubbles, so that the phase interface area between a gas phase and a liquid phase is increased, and ozone gas can be better dissolved with black and odorous water to form a gas-liquid emulsion for increasing the reaction efficiency; and the ozone gas in the black and odorous water is crushed into small bubbles, and the volume of the gas is reduced, so that the floating buoyancy of the bubbles is reduced, the retention time of the ozone gas in the black and odorous water is prolonged, and the reaction efficiency is further improved.

The invention provides an intelligent reaction system and method for preparing Nmethyl sodium taurate, and the system comprises an amination reaction kettle, an amination reaction product from the amination reaction kettle enters a first gas-liquid separation tank after reaction through a tubular reactor, and the side wall of the amination reaction kettle is provided with a raw material inlet, Theraw material inlet is provided with a microinterface generator used for dispersing crushed materials into microbubbles, the side wall of the microinterface generator is provided with a methylamine inlet, and the methylamine inlet is connected with a vaporizer so as to vaporize methylamine. According to the intelligent reaction system for preparing the N-methyl sodium taurate, the microinterface reactor is arranged at the raw material inlet of the amination reaction kettle, so that the problem of low reaction efficiency of the system due to the fact that methylamine and sodium isethionate cannot be fully mixed in the reaction kettle in the prior art is solved.