139results about How to "Increase mass transfer rate" patented technology

The invention discloses a jet aerator with low energy consumption and high oxygenation efficiency. The jet aerator comprises a Venturi tube and a quick-pass rhombic tube which are of a split structure, multi-rod supports are installed on the inner wall faces of round pipes at the two ends of the venturi pipe and support tail hook bionic stirring blades, a double-end reverse screw is arranged in the venturi pipe, one end of a quick-pass rhombic pipe is connected with the venturi pipe, the other end of the quick-pass rhombic pipe extends into an air suction chamber, and the upper portion of the air suction chamber is connected with an air supply pipe. The end, away from the Venturi tube, of the air suction chamber is connected with a mixing cavity tube, the mixing cavity tube is connected with the front end of a throat tube, a divergent wing-like blade set and a special-shaped taper hole plate are arranged in the mixing cavity tube, and a grid tray scattering nozzle is arranged in the throat tube; compared with a circular pipeline, the quick-passing rhombic pipe can provide higher water conveying capacity; the gradual change spiral body design on the double-end reverse screw can generate vortexes and turbulent flows, the turbulent flow intensity of water flow is improved, the mixing and diffusion capacity of the water flow is improved, and therefore the oxygenation efficiency is improved.

The invention relates to an organic wastewater photocatalytic rotational flow enhanced hydrogen production method and device, and provides an organic wastewater photocatalytic rotational flow enhanced hydrogen production method, which comprises the following steps: (A) shear oscillation mixing of a catalyst and wastewater, (B) wastewater rotational flow oscillation photocatalytic hydrogen production, and (C) gas-liquid-solid three-phase separation and catalyst reuse. The invention further provides an organic wastewater photocatalytic rotational flow enhanced hydrogen production device. Organic matter pollutants in water are decomposed under the action of the catalyst, chemical energy of the organic matter pollutants is recycled in the form of hydrogen, cooperation of wastewater photocatalytic hydrogen production and wastewater treatment is achieved, the reaction rate of wastewater photocatalytic hydrogen production is increased, and secondary pollution caused by the reaction catalyst is avoided.

The utility model relates to the technical field of organic solid waste resource utilization, and discloses an anaerobic digestion device for high-yield methane, which comprises an anaerobic reactor, a feed port and a discharge port are respectively arranged at the lower end and the upper end of the side wall of the anaerobic reactor, and an exhaust port is arranged at the top of the anaerobic reactor. A plurality of layers of electrodes which are horizontally arranged are arranged at the upper end in the anaerobic reactor, the electrodes are silk screen filler electrodes, the electrodes comprise positive electrodes and negative electrodes, and the positive electrodes and the negative electrodes are connected with an external power supply through wires. The water electrolysis device is arranged in the anaerobic reactor, the positive electrode generates oxygen, a micro-oxygen-consumption environment is generated around the positive electrode, hydrolytic bacteria are promoted to convert organic matter into low-molecular organic acid, a substrate is provided for methanogens, and methane generation is promoted; the negative electrode produces hydrogen, a hydrogen environment is generated around the negative electrode, hydrogen nutrition type methanogens are promoted to convert hydrogen and CO2 dissolved in the system into methane, and the purposes of reducing the carbon dioxide and improving the methane yield are achieved.

The utility model discloses a novel advanced oxidation device which comprises an outer shell, a gas-liquid mixing chamber, an ultrasonic atomization disc, a gas inlet hole, a water inlet hole, a connecting ozone generator, a UV reaction coil pipe and the like. Through ultrasonic wave catalysis and ultraviolet light catalysis, H2O is excited by O3 and a large amount of. OH with higher oxidability is generated, the mixing degree and turbulent fluctuation intensity of ozone and sewage are improved, the mass transfer coefficient is increased, the mass transfer rate of ozone is increased, and four-section oxidation reaction is carried out in one reactor, so that the ozone oxidation efficiency and effect are greatly improved; and a reinforced oxidation effect is generated on pollutants in the wastewater, so that the pollutants in the wastewater are degraded and removed.

The invention discloses an organic extraction device for preparing an organic framework material, and relates to the technical field of extraction devices. Comprising an extraction tank, the extraction tank is provided with an upper feeding port, a lower feeding port, an upper discharging port and a lower discharging port, and fixing rings distributed in a linear array mode are installed in the extraction tank; the fixed shell is rotationally connected to the extraction tank; the plurality of first telescopic shells and the plurality of second telescopic shells are embedded in the fixed shell; the first turntable is in limited sliding connection with the fixed shell; and the second turntable is connected to the fixed shell in a limiting and sliding manner. By detecting the concentration of an organic component in a stock solution, when the concentration of the organic component is increased, the distance between the first turntable and the second turntable and the fixed ring is reduced, so that the flow area of liquid in the extraction tank is reduced, a higher shearing force is generated when the solution flows, the dispersion degree of liquid drops of the solution is increased, and the extraction efficiency is improved. The mixing speed of the stock solution and the extractant is accelerated, and the mass transfer efficiency is improved.

The invention discloses a method for extracting chitin from shiitake mushroom residues by using an ultrasonic-assisted deep-eutectic solvent, which belongs to the technical field of polysaccharide extraction and comprises the following steps: preparing dried shiitake mushroom powder, preparing the deep-eutectic solvent and extracting the chitin. According to the method for extracting the chitin from the mushroom residues through the ultrasonic-assisted deep-eutectic solvent, the natural deep-eutectic solvent serves as the solvent, ultrasonic synergistic extraction is adopted, the chitin extraction rate and the product purity are greatly improved, the extraction efficiency is high, the method is easy to operate, the process is easy to control, and the method is environmentally friendly, low in production cost and suitable for industrial production. A new thought is provided for further utilization of mushroom processing waste resources.

The invention discloses a modified bismuth-based catalyst as well as a preparation method and application thereof, and belongs to the field of electrochemical reduction CO2 catalysis. By hybridizing boron-doped oxidized carbon black and bismuth oxide, in-situ synthesis of the bismuth oxide and advanced construction of a BiOC structure are realized. Particularly, in the electroreduction process of carbon dioxide, the bismuth oxide can be partially, spontaneously and irreversibly reconstructed into basic bismuth carbonate (Bi2O2CO3), and basic bismuth carbonate composite bismuth oxide (Bi2O2CO3 / Bi2O3) is formed. Due to the structure, the application performance of the catalyst in carbon dioxide electroreduction is remarkably improved, and the catalyst has high formic acid selectivity, high catalytic efficiency, excellent stability and large working current capacity.

The present invention proposes a MABR membrane assembly, a MABR reactor, a MABR reactor operation method and a MABR biofilm optimization control method, which adopts a cross-flow working mode between horizontal membrane filaments and water flow to improve the mass transfer efficiency of the matrix and metabolites in the MABR biofilm; the composite structure membrane assembly is used to promote the complementarity and symbiosis of various microorganisms such as carbon removal aerobic bacteria, nitrifying bacteria, denitrifying bacteria and anaerobic ammonia oxidizing bacteria; different areas such as MABR membrane reaction area, pre-reaction area and water distribution and gas distribution area are constructed in the same reactor to complete short-range nitrification or partial short-range nitrification reaction, short-range denitrification reaction and anaerobic ammonia oxidation reaction respectively, so as to achieve efficient biological denitrification of sewage with low carbon-nitrogen ratio in a single-stage MABR reactor. At the same time, the optimization control method of the MABR biofilm solves the problems that the overly thick biofilm in the MABR reactor is not easy to be effectively washed, and the fixed gas washing frequency and intensity are difficult to simultaneously adapt to the biofilm washing and film removal requirements of membrane filaments in different parts.

The utility model discloses a desulfurizing absorption tower synergistic device which comprises a multiphase flow reinforced rotary-cut turbulent flow unit arranged at the upper part in a tower body of a first-stage absorption tower, and the multiphase flow reinforced rotary-cut turbulent flow unit is arranged between a spraying layer and a flue gas inlet in the absorption tower; the multiphase flow reinforced rotary-cut turbulent flow unit comprises a horizontal mounting plate and a turbulent flow module arranged on the mounting plate; the turbulent flow module comprises an inner cylinder, a middle cylinder and an outer cylinder, the inner cylinder is sequentially sleeved with the middle cylinder and the outer cylinder, first blades are evenly distributed between the middle cylinder and the outer cylinder in the circumferential direction, and second blades are evenly distributed between the inner cylinder and the middle cylinder in the circumferential direction. Slurry sprayed by the spraying layer and rising flue gas are fully mixed under the action of the multiphase flow reinforced rotary-cut turbulent flow unit and then fall to the bottom of the absorption tower. The spirally rising flue gas can increase the gas-liquid contact area and improve the gas-liquid mass transfer rate, so that the desulfurization and dust removal efficiency is improved.

The invention belongs to the field of powder material processing, and particularly relates to a drying and cooling all-in-one machine and a drying and cooling method.The drying and cooling all-in-one machine is characterized in that a fluidized drying section, a fluidized cooling section and a gravity cooling section are arranged in a shell body from top to bottom, so that materials of the fluidized drying section and the fluidized cooling section are in a fluidized state; by means of the arrangement, materials fed from the feeding port are rapidly spread in the horizontal direction, even particle distribution is formed in the cross section of the shell body, the materials downwards, evenly and integrally pass through the gravity cooling section, and uneven cooling caused by material segregation and different cooling speeds of all the materials is eliminated; the high heat and mass transfer rate brought by material fluidization is utilized, and the materials are efficiently dried in the drying section; and damp and hot gas can be effectively replaced in the fluidization cooling section, so that material scabbing is avoided. After the material subjected to fluidized drying, cooling and dry gas replacement enters the gravity cooling section, a refrigerant with lower temperature can be adopted for cooling, and meanwhile, the cooling efficiency and the cooling effect are improved.

The invention discloses a three-dimensional porous carbon material, a preparation method and application in adsorption of organic pollutants in a water body, and belongs to the technical field of water treatment.The preparation method comprises the steps that 1, zinc salt, 2-methylimidazole and a nitrogen source are dissolved in a methanol solution respectively, stirring reaction is conducted at the room temperature after mixing, standing is conducted, precipitates are taken, and a precursor solution is obtained; a precursor zeolite imidazate framework structure material is obtained; and 2, pyrolyzing the precursor zeolite imidazate skeleton structure material at 1100 DEG C under the protection of inert gas to obtain the three-dimensional porous carbon material. The three-dimensional porous carbon material disclosed by the invention has the advantages of large specific surface area, developed pore structure, abundant nitrogen-containing functional groups and reusability, can provide more adsorption active sites and enhance the electrostatic adsorption effect, and shows excellent adsorption performance and anti-interference capability on perfluorinated compounds, benzene series (such as benzene) and chlorinated organic compounds (such as parachloroaniline).

The invention discloses a triazine desulfurizer and a preparation method thereof, and belongs to the technical field of gas purification. The triazine desulfurizer is mainly prepared from the following raw materials in percentage by weight: 20 to 50 weight percent of triazine derivative, 10 to 15 weight percent of sterically hindered amine, 3 to 7 weight percent of stabilizer, 1 to 3 weight percent of synergist, 0.5 to 1.5 weight percent of penetrant, 0.5 to 1.5 weight percent of inhibitor, 1 to 2 weight percent of additive and the balance of water, the preparation method of the triazine derivative comprises the following steps: adding 2-(diphenylphosphino) ethylamine into a toluene solvent, adding a paraformaldehyde aqueous solution in batches under a stirring condition, and reacting for 2-8 hours to obtain the triazine derivative. According to the triazine desulfurizer and the preparation method thereof provided by the invention, the triazine derivative and the sterically hindered amine are taken as a host, and the stabilizer, the synergist, the penetrant, the inhibitor and the assistant are compounded, so that the scaling trend of the triazine desulfurizer in an oil and gas well can be slowed down, the dissolution rate of hydrogen sulfide and the mass transfer rate in a solution are increased, and the desulfurization reaction is promoted; the desulfurization effect and the desulfurization rate are improved, and meanwhile, a very good scale inhibition effect is also achieved.

The invention discloses a prebaked anode carbon capture system for industrial electrolytic aluminum and an operation method, and belongs to the field of carbon capture, the prebaked anode carbon capture system comprises a combined power generation device for supplying power to equipment, a flue gas treatment device and a carbon capture device; the flue gas treatment device comprises a roasting furnace and a calcining furnace, flue gas generated by the flue gas treatment device is subjected to multi-stage treatment to provide raw materials for the carbon capture device, and heat generated by the flue gas treatment device is subjected to multi-stage recycling to provide reaction conditions for flue gas treatment and drive a steam turbine to generate power; the carbon capture device comprises an absorption tower and a motor boiler, and the absorption tower receives flue gas and completes carbon capture under the assistance of steam. A series of efficient flue gas treatment units are adopted, and the purity of carbon dioxide is remarkably improved. In addition, the multi-stage regenerative cycle technology is designed, and the comprehensive utilization efficiency of heat energy is improved. And by adopting a steam-assisted vacuum temperature swing adsorption technology, the dynamic adsorption capacity of gas is enhanced, and the cycle service life of an absorbent is prolonged, so that the economical efficiency and the operating performance of the system are optimized.

The present invention relates to a flow channel structure of an alkaline electrolytic cell and an alkaline electrolytic cell, the flow channel structure comprises a plate body, the plate body is provided with an inlet end and an outlet end; a dotted spoiler structure unit is distributed on the plate body, the dotted spoiler structure unit forms a fluid flow channel on the plate body, the dotted spoiler structure unit comprises a first-level spoiler structure unit, a second-level spoiler structure unit, and a third-level spoiler structure unit, the first-level spoiler structure unit, the second-level spoiler structure unit and the third-level spoiler structure unit form a shunt flow channel on the plate body. The present invention promotes the lateral flow capacity and mass transfer rate of the electrolyte, effectively improves the flow uniformity of the electrolyte, makes the electrolyte fully utilized in the process of electrolysis, and effectively improves the electrolysis efficiency. And it can effectively discharge the gas generated by the electrolysis reaction, reduce the generation of local hot spots, and effectively improve the service life of the alkaline electrolytic cell.

The present invention provides a particle collision disturbance type gas lift loop reactor, the reactor comprising: a reactor body; a draft tube with a sieve plate; particles, which can be suspended inside the draft tube when the reactor is running; a gas distributor; a main liquid distributor; a gas inlet; a liquid inlet; a gas outlet; and a liquid outlet. Compared with the traditional gas lift loop reactor, due to the turbulent disturbance of particles and fluid inside the draft tube of the reactor, it helps to prevent gas phase aggregation and increase liquid phase back mixing, so that the gas and liquid phases in the reactor are fully mixed, the solubility of the gas phase in the liquid phase and the gas-liquid contact area are increased, the mass transfer rate and heat transfer rate between fluids are improved, and at the same time, the temperature distribution in the reactor is uniform, which is conducive to gas-liquid two-phase reaction or gas-liquid-solid three-phase reaction, and can be widely used in gas-liquid two-phase or gas-liquid-solid three-phase chemical reaction processes.

The invention discloses a fuel cell gas diffusion layer containing a wave channel, and a preparation method and application thereof. The preparation method comprises the following steps: cutting a substrate layer material and designing the wave channel; the substrate layer material is placed on a laser etching adsorption platform, laser etching is conducted on the first surface of the substrate layer material, a wave channel is obtained, and the extending direction of the wave channel is parallel to the length direction of the substrate layer material; carrying out hydrophobic treatment on the substrate layer material containing the wave channel; then mixing and stirring conductive carbon black, a binder, an emulsion and water to obtain microporous layer slurry; and finally, spraying the microporous layer slurry on the second surface of the substrate layer material, and then drying, thermally treating and curing the substrate layer material to obtain the fuel cell gas diffusion layer containing the wave channels. According to the fuel cell gas diffusion layer containing the wave channels, the mass transfer rate can be increased, transmission and supply of hydrogen and oxygen in air are improved, generated water is effectively discharged, and aggregation of liquid water in the flow channels is reduced.

The invention discloses a composition and a method for preparing high-carbon aldehyde through water / oil two-phase hydroformylation. The composition comprises a rhodium catalyst, a water-soluble phosphine ligand and a quaternary ammonium salt cationic surfactant, the structural formula of the quaternary ammonium salt cationic surfactant is shown in a formula (I), R1, R2, R3, R4 and R5 are independently selected from methyl, ethyl and C3-C18 straight-chain or branched-chain alkane, and X is F, Cl or Br; the molar ratio of the water-soluble phosphine ligand to the rhodium catalyst is (0.1-20): 1; the molar ratio of the quaternary ammonium salt cationic surfactant to the rhodium catalyst is (0.05-100): 1. # imgabs0 #

The invention relates to the technical field of stirring kettles, in particular to a stirring kettle for producing amino acid water-soluble fertilizer, which comprises a stirring kettle body, a fixed cover is fixedly connected to the stirring kettle body, a connecting pipe is fixedly connected to the bottom end of the fixed cover, and a rotating frame is rotatably connected in the fixed cover. The stirring kettle comprises a rotating frame, a plurality of storage covers are fixedly connected to the rotating frame, stirring mechanisms are rotatably connected to the interiors of the storage covers, flushing mechanisms are rotatably connected to the interiors of the storage covers, water guide driving bases are fixedly connected to the outer walls of one sides of the storage covers, and water guide frames are arranged on the storage covers in a sliding fit mode. By arranging various types of stirrers in the fixed cover, according to different material characteristics and process requirements, the stirring mode is flexibly adjusted, different stirring effects are achieved, the mixing uniformity of materials is improved, the mass transfer rate of the materials is improved, the reaction rate is controlled and the like, and it is ensured that fertilizers are mixed uniformly, the quality is stable, and the production process is efficient.

The invention discloses a cineole rectification device, relates to the technical field of rectification and purification, and solves the problem that impurities which cannot fall off through holes of a lower-layer tower plate are always accumulated on the outer side of a scraping strip on the upper side of the tower plate, so that the impurities remain on the tower plate. A plurality of tower trays which are distributed at equal intervals are fixedly mounted in the rectifying tower and are distributed in a staggered manner, a plurality of circular through holes are formed in the tower trays, weir plates are fixedly mounted on the outer sides of the tower trays, and the weir plates are fixedly connected with the rectifying tower; by installing the anti-blocking structure, the umbrella-shaped steel wire brush in the anti-blocking structure can penetrate through the circular through hole in the tower tray and rub with the side wall of the circular through hole, and impurities can be effectively prevented from depositing in the circular through hole of the tower tray, so that the circular through hole of the tower tray can be effectively prevented from being blocked, and the circular through hole of the tower tray does not need to be dredged in the later period.

The present invention belongs to the field of green hydrogen energy, and provides a low-cost catalytic electrode, preparation and application for rapid full electrolysis of seawater to produce hydrogen. The bifunctional catalytic electrode uses a three-dimensional self-supporting foam as a catalyst carrier, and an array of nickel iron sulfide nanosheets is in situ grown on the surface of the carrier as a catalyst. This three-dimensional nanosheet array structure helps to expose more active sites and increase the proton and gas mass transfer rates. The synergistic effect of the bimetallic helps to improve the intrinsic catalytic activity of the electrode. The sulfur anions oxidized on the surface during the catalytic process can inhibit the adsorption of chloride ions on the surface. At the same time, the catalyst raw materials are cheap. The present invention is directly used for the cathode and anode of rapid full electrolysis of seawater to produce hydrogen. It has an industrial-grade current density (500mA cm-2) at a relatively low driving potential (1.85V) in alkaline seawater. ‑2 ), which can be used as a low-cost catalytic electrode for the future rapid all-electrolysis of seawater to produce hydrogen.

The utility model discloses an efficient and stable organic waste gas purification device which comprises a reactor main body, and the reactor main body is sequentially provided with a circulating nutrient solution supply area, an inlet and outlet area and a biodegradation area from bottom to top; a circulating liquid storage tank is arranged at the bottom of the circulating nutrient solution supply area, and a first feeding opening, a circulating nutrient solution discharging opening and a second feeding opening are formed in the upper part of the circulating liquid storage tank; a sludge outlet is formed in the bottom of the circulating liquid storage tank; a thermodetector, a second pressure monitoring port and an air inlet are arranged on the side wall of the inlet-outlet area; a perforated air distribution pipe is arranged at the upper part of the air inlet; the biodegradation area is sequentially provided with a filler layer and a sprayer from bottom to top, and a material changing opening is formed in the side wall of the filler layer; a gas outlet is formed in the top of the reactor main body, and a first pressure monitoring port is formed in the side wall between the demister and the first sprayer. According to the utility model, the pressure monitoring system is additionally arranged, so that real-time pressure monitoring and QQ enzyme feeding are realized, manual regular monitoring and tedious operation are reduced, and the system is timely and accurate and has strong anti-interference capability.

The invention discloses a salt lake brine impurity removal device and method, and relates to the technical field of inorganic salt chemical engineering, the salt lake brine impurity removal device comprises a tank body, a sealing cover is detachably connected to the top end of the tank body, a pressure applying assembly is installed on the sealing cover, a first filter membrane is installed in the middle of the tank body, the movable end of the pressure applying assembly faces the first filter membrane, and a motor is installed on the tank body below the first filter membrane; a first electric push rod is installed at the output end of the motor, the output end of the first electric push rod faces the pressure applying assembly, a plurality of sets of scraping plates are detachably installed at the output end of the first electric push rod through an installation assembly, when the scraping plates are located at the lowest positions, the scraping plates are in sliding connection with the first filter membrane, and fine filter assemblies are installed on the scraping plates. Residual substances in the solution can be further removed through secondary filtering treatment, and the purity of the final solution is improved, so that the energy consumption and the chemical use amount in subsequent treatment steps are reduced, and the overall treatment cost is reduced.

The present invention belongs to the field of lithium extraction, and specifically relates to a H 1.6 Mn 1.6 O4@H2TiO3 composite lithium ion sieve, comprising H 1.6 Mn 1.6 O4 with a porous structure, and H2TiO3 embedded in the pore structure and surface-coated in H 1.6 Mn 1.6 O4. The present invention also includes the preparation of the material and its application in lithium extraction. The material described in the present invention has excellent lithium extraction capacity and cycle stability.

This utility model relates to the field of gas oxidation technology and discloses a low-concentration gas oxidation furnace. The furnace includes a housing with an inlet pipe fixedly connected to the bottom. One end of the inlet pipe, located inside the housing, is fixedly connected to a flared opening. The housing contains a mixing assembly for mixing oxygen and gas, and the side walls of the housing are equipped with heating assemblies for oxidizing the mixed gas. This low-concentration gas oxidation furnace utilizes the synergistic effect of vertical blades, spiral blades, and a flared hood to force oxygen and gas into a swirling mixture before entering the reaction zone, improving gas mixing uniformity and avoiding the problems of oxygen concentration on one side and asymmetrical gas distribution in traditional side-inlet designs. This fundamentally eliminates localized oxygen enrichment or deficiency. The multi-layered reaction chambers, combined with the uniform flow design of the gas distribution plate, ensure uniform gas distribution within each reaction chamber.

The application belongs to the technical field of natural substance separation and extraction, and particularly relates to a kind of Haematococcus pluvialis multi-product cascade separation method based on eutectic solvent sequential extraction and enzyme membrane reactor coupling, comprising the following steps: (1) cell wall weakening pretreatment step; (2) water-soluble component extraction step; (3) pigment component extraction step; (4) astaxanthin extraction step; (5) enzyme conversion step. Through the synergistic effect of eutectic solvent sequential extraction and enzyme membrane reactor, efficient, green and continuous cascade separation of water-soluble components, pigments, astaxanthin and xylo-oligosaccharides in Haematococcus pluvialis is realized, and product purity and resource utilization are improved.

The invention discloses a method for preparing battery-grade lithium carbonate by carbonizing lithium carbonate, which comprises the following steps: uniformly mixing industrial-grade lithium carbonate with pure water to prepare slurry, conveying the slurry to a reaction kettle, and controlling the temperature in the reaction kettle to be 5-10 DEG C and the pressure to be 4-5 MPa; generating liquid CO2 from the dry ice, conveying the liquid CO2 into a reaction kettle, and carrying out carbonization reaction to obtain a lithium bicarbonate solution; and carrying out solid-liquid separation on the lithium bicarbonate solution, and then carrying out purification and pyrolysis to obtain the battery-grade lithium carbonate. According to the method for preparing the battery-grade lithium carbonate through carbonization of the lithium carbonate, the liquid CO2 is adopted to replace gaseous CO2 to participate in the reaction, the mass transfer rate in the reaction process is increased, efficient carbonization reaction is promoted, meanwhile, high-purity battery-grade lithium carbonate can be obtained easily, and the recovery effect of the lithium carbonate in industrial lithium carbonate is improved.

The utility model discloses a multilayer combined filter structure of desulfurization dust remover, including tower body, at least one layer composite filler layer is arranged in the tower body, the composite filler layer is multilayer structure, and the regular shaped filler area, transition flow guide area, bulk packing area and support grating from top to bottom include successively, the regular shaped filler area and bulk packing area outside all are provided with fixed frame, the regular shaped filler area and bulk packing area are filled in the corresponding fixed frame respectively, through the high specific surface area of bulk packing, can effectively strengthen gas liquid contact in bulk packing area, improve mass transfer rate, and the low resistance characteristic of regular shaped filler can avoid partial pressure drop surge in regular shaped filler area, realizes the balance of desulfurization efficiency and energy consumption, reduces operating energy consumption while guaranteeing desulfurization effect.

The invention discloses a hollow aluminum phosphate molecular sieve with an LTA structure and a preparation method and application thereof, belonging to the technical field of molecular sieve porous materials, and provides a preparation method of a hollow aluminum phosphate molecular sieve with an LTA structure, comprising the following steps: mixing deionized water, an aluminum source, an aqueous phosphoric acid solution and an aqueous hydrofluoric acid solution to obtain a premixed solution, dripping propylene oxide, sequentially impregnating a double template agent to obtain a hydrogel, drying to obtain an aluminum phosphate dry gel, first crystallization, drying to obtain a nano aluminum phosphate molecular sieve powder, placing it in an aqueous template agent solution, second crystallization, separating a solid product, and roasting to obtain a hollow aluminum phosphate molecular sieve with an LTA structure. The hollow aluminum phosphate molecular sieve with an LTA structure prepared by the invention has both micropores and mesopores, and has the characteristics of a large specific surface area, a large number of exposed active sites, fast diffusion of guest molecules, and a high mass transfer rate, thereby effectively improving the selectivity and activity of the catalyst.

The biological fluidized bed comprises a fluidized bed main body and a circulating water tank, a water inlet is formed in the bottom of the fluidized bed main body, a supporting layer, a bearing layer and an activated carbon fluidization layer are sequentially arranged in the fluidized bed main body from bottom to top, and the upper portion of the fluidized bed main body is communicated with the circulating water tank. Water can only enter the circulating water tank from the fluidized bed main body; according to the utility model, a traditional biochar filter tank is arranged into a fluidized bed form, so that the updating of organisms on the surface of activated carbon and the transfer of solutes in water and matrixes in activated carbon pore channels are facilitated, and the adsorption effect and biological efficiency of the activated carbon are improved. Through the arrangement of the circulating water tank, the expansion rate of the fluidized bed can be controlled to be stable by controlling the frequency of the circulating pump without being influenced by the water inflow, and the influence of the water inflow and the water inflow load change is reduced; by adopting the activated carbon with directionally regulated and controlled pore channels, the internal biochemical performance and the external environment resistance of the biological activated carbon are improved.

The invention discloses abalone peptide slurry electrodialysis equipment and a use method thereof, and belongs to the technical field of peptide slurry electrodialysis. Comprising a lifting support, an electrodialysis reaction disc cavity fixedly installed on the upper side of the lifting support, a self-cleaning mechanism, an eddy current effect generation mechanism and a driving mechanism, and first electric telescopic rods attached to the two sides of the eddy current effect generation mechanism can be unfolded outwards through the first electric telescopic rods in the cleaning stage; the U-shaped expansion sleeve plate is used for controlling the extending U-shaped expansion sleeve plate to divide the mixing circular cavity into an upper cleaning space and a lower cleaning space which are not interfered with each other, so that different cleaning reagents are injected according to the ion characteristics of the membrane modules in the cleaning spaces; while synchronous cleaning of the two membrane assemblies is achieved, maintenance time and cost are reduced, mechanical damage caused by repeated disassembly of the membrane assemblies can be reduced, and the performance and the service life of the membrane are improved.