200 results about "Packed bed" patented technology

The invention discloses an immersed rotating packed bed combined coil device and method for reactive extraction, and the combined coil device comprises a shell, a liquid inlet, a sealing assembly, a liquid premixing pipe, a packing assembly, a heat exchange jacket, a liquid emptying port, a liquid outlet and a spiral coil assembly; according to the device, a reactor cavity is completely filled with liquid, so that an immersed reaction environment is formed; and a strong shearing effect is generated by utilizing the supergravity silk screen filler, so that rapid heterogeneous mixing is realized, and the reaction selectivity is improved. Meanwhile, a supergravity reaction area and a coil flow area are combined into a whole, the spiral coil can repeatedly change the flow direction and form vortex to realize continuous flow of the material and maintain the dispersion state of liquid drops, and the retention time of the material is flexibly regulated and controlled by adjusting the length of the coil, so that the reaction conversion rate is remarkably improved.

The application discloses a method for continuously preparing MOF materials in water phase by using a supergravity technology, and comprises the following steps: S1, weighing metal salt and dissolving the metal salt in a deionized water solution at normal temperature, and recording the solution as reaction liquid A; S2, weighing organic ligand and dissolving the organic ligand in an alkali solution at normal temperature, and recording the solution as reaction liquid B; S3, starting a supergravity reactor, and simultaneously introducing the reaction liquid A and the reaction liquid B into the supergravity reactor by a peristaltic pump to perform a precipitation crystallization reaction, so as to prepare a MOF material suspension, wherein the supergravity reactor is selected from an external circulation rotating packed bed; and S4, performing centrifugation, washing, activation and drying on the suspension, so as to obtain MOFs. The method is green and environment-friendly, the prepared product has high crystallinity, large specific surface area, uniform particle distribution, regular morphology, and the average particle size is 20 nm-6 microns, and the size is controllable.

Methods and devices for capturing and analyzing aerosolized particles in exhaled breath characteristic of a respiratory disease to enable rapid, low-cost point of care assays for several diseases including respiratory tract diseases such as COVID-19 are disclosed. The disclosed methods and systems selectively capture aerosolized particles using a packed bed column. The captured particles are then eluted using solvents and analyzed using analytical devices including MALDI-TOFMS.

The present application relates to a kind of dimethylamine piperidine continuous synthesis dimethylamine piperidine method of oxy group, by using reaction raw material mixed solution into continuous flow packed bed reaction zone, i.e.catalyst layer;Reaction temperature is 20-80 ℃, normal pressure, feed liquid is the mixture of dimethylamine piperidine, hydrogen peroxide and deionized water, oxidation is carried out on the catalyst layer of continuous flow packed bed adiabatic reactor to make dimethylamine piperidine into dimethylamine piperidine oxy group, realize the continuous preparation of dimethylamine piperidine oxy group;The obtained reaction liquid is quenched, then filtered to remove solid particle quenching agent, vacuum distillation to remove water and vacuum rectification treatment obtain high-purity dimethylamine piperidine oxy group;The process scheme overcomes the series of deficiencies in the previous preparation process, such as complicated steps, low product purity, low production capacity in unit production time, realizes the continuous preparation of high-purity dimethylamine piperidine oxy group, with the characteristics of efficient, safe, green manufacturing.

This invention relates to an air purification device designed to remove a wide range of volatile and semi-volatile organic compounds from contaminated air The system integrates a chemical scrubber with an electrochemical reactor that generates ferrate(VI) solution in situ. The reactor uses two iron electrodes immersed in a 14 molar sodium hydroxide solution, powered by a direct current converter operating at 24 volts. Upon activation, ferrate(VI) ions are formed, indicated by a purple coloration in the solution. The ferrate(VI) solution is immediately circulated through a packed- bed scrubber, where it contacts the polluted air. Organic compounds are absorbed into the liquid phase and oxidized by ferrate(VI), resulting in cleaner air. The system is equipped with drainage for spent solution and can be integrated into industrial, laboratory, or indoor ventilation setups.

The invention relates to the technical field of environmental protection equipment, in particular to an organic matter pollution treatment device for solid waste particles. The supporting pipe body is provided with an air inlet and an air outlet; the movable pipe body can be rotatably arranged in the supporting pipe body; an annular discharge chamber is formed between the movable pipe body and the supporting pipe body and is used for material circulation; the blades are located on the outer side of the movable pipe body. The blades can be driven to rotate; the first electrode is of a net-shaped structure. The electrode I wraps the outer wall of the supporting tube body; the electrode II is arranged in the movable tube body; the driving mechanism is in transmission connection with the movable pipe body and the blades and used for driving the movable pipe body and the blades to rotate. By adopting the static packed bed reactor, the problems that solid particles are not uniformly mixed, gas mass transfer is blocked and the treatment efficiency is low in an existing static packed bed reactor can be solved, and high-efficiency and uniform repair of pollutant particles with high water content and different particle sizes is realized.

The invention discloses a lignin nanoparticle liquid-phase dispersion or solid dispersion preparation method which comprises the following steps: 1) adding lignin into a good solvent, stirring and dissolving to form feed liquid A; or adding the lignin and the surfactant into a good solvent, stirring and dissolving to form feed liquid A; 2) adding a surfactant into a poor solvent, stirring and dissolving to form a feed liquid B; or a poor solvent is used as feed liquid B; 3) introducing the feed liquid A and the feed liquid B into a supergravity rotating packed bed through a peristaltic pump, and precipitating to obtain a lignin nanoparticle suspension; 4) centrifuging and washing the lignin nanoparticle suspension, and dispersing the lignin nanoparticle suspension in a liquid to obtain a lignin nanoparticle liquid-phase dispersion; or carrying out rotary evaporation on the lignin nanoparticle suspension to obtain the lignin nanoparticle liquid-phase dispersion. The prepared lignin nano-particle liquid-phase dispersion is good in stability and narrow in particle size distribution, and the particle size of the particles ranges from 5 nm to 50 nm.

The present invention relates to methods and devices for isolating one or more biomolecules of interest from a biological composition. Specifically, the invention relates to the separation of one or more target biomolecules from a biological composition by dynamic packed bed adsorption using a separation medium comprising porous rod-like particles attached to the target molecules and filtration using a filter having a pore size of at least 1.5 [mu] m.

This disclosure relates generally to processing of gas using packed bed column, and more particularly, a split bed packed column for processing gas. In current packed bed column configurations high pressure drop in packed column leads to increased energy consumption and puts a restriction on using high feed velocities, resulting in high cycle time. This results in increased requirement of adsorbent for processing of gas which thereby increases the operational expenses. The disclosed configuration includes multiple beds inside the same column differentiated by partitions instead of a single long bed inside the column. This configuration enables decreasing the pressure drop along the length, resulting in decreased energy consumption for the same cycle time, without compromising on other process key performance indicators. The disclosed configuration is used for gas separation via adsorption, thermal energy storage applications and so on.

An air purifier includes a hollow reactor extending in one direction, a discharge plasma generator including a first electrode disposed on an outer wall of the reactor and a second electrode which is disposed inside the reactor and generates discharge plasma in a predetermined discharge region, a plurality of dielectric particles disposed in a packed-bed of the reactor, and a liquid supply unit which supplies fine droplets into the inside of the reactor.

The utility model discloses a direct heat exchanger of a high-temperature particle steel slag packed bed, which is used for solving the problem of how to generate high-temperature supersaturated steam by utilizing heat energy contained in high-temperature steel slag. A main heat exchange channel and an auxiliary heat exchange channel are arranged in a shell of the heat exchanger, an inner cavity of the main heat exchange channel and an inner cavity of the auxiliary heat exchange channel are independent of each other, a roller screen is installed at a feeding port of the main heat exchange channel, and after high-temperature steel slag is screened through the roller screen, small-particle steel slag falls into the main heat exchange channel, and large-particle steel slag falls into the auxiliary heat exchange channel. And inner cavities of the main heat exchange channel and the auxiliary heat exchange channel are subjected to sectional heat exchange by a first-stage heat exchange wall pipe unit, a second-stage heat exchange wall pipe unit and a third-stage heat exchange wall pipe unit which are arranged from bottom to top. According to the technology, the heat exchange wall units in the tower body are optimally designed into the low-temperature section, the medium-temperature section and the high-temperature section from bottom to top, high-temperature steel slag is cooled in order, and high-quality supersaturated steam can be generated.

A caustic scrubber for removing SO2 from flue gas for use in a fuel cell assembly, the caustic scrubber comprising: a caustic scrubber tower comprising a packed bed of material; a flue gas inlet configured to direct flue gas into the caustic scrubber column; a scrubber solution pump configured to pump a scrubber solution comprising NaOH and H2O2 into the caustic scrubber column; and a waste scrubber solution outlet configured to discharge a waste scrubber solution, the waste scrubber solution comprising a sulfur salt formed by a reaction between the scrubber solution and SO2 in the flue gas.

A storage tank for heat storage of a particle packed bed is divided into an indirect heat exchange storage tank and a direct heat exchange storage tank and comprises a tank body, a flow distribution device, a baffle, a heat preservation device and an emergency discharge device. The tank body is used for storing solid particles and providing a supporting and storing space for the flow distribution device, the baffle, the heat preservation device and the emergency discharging device; the flow distribution device is used for uniformly distributing heat exchange fluid in the tank body, and the baffle is used for fixing a packed bed body in the tank body and preventing solid particles from flowing out of the tank body; the heat preservation device is used for maintaining the temperature of the packed bed body and providing heat tracing for the tank body when needed, and the emergency discharging device is used for discharging solid particles out of the tank body in an emergency. The distribution pipeline is adopted to distribute flow, so that fluid is uniformly mixed on the section of the storage tank, the problem of insufficient heat exchange of particles in heat storage and heat release processes is solved, and the heat storage efficiency of the packed bed system is improved.

The invention provides a fluorine-containing organic wastewater treatment device, system and method and a fluorine-containing organic wastewater regeneration method. The treatment device comprises a filtration / adsorption tower and a concentrated solution collector which are sequentially arranged from top to bottom, the filtration / adsorption tower is filled with activated carbon fiber felt to form a packed bed; and the filtration / adsorption tower is provided with a wastewater inlet, a wastewater outlet, a superheated steam inlet and a superheated steam (condensed water) outlet. The treatment device has the characteristic of intensification and can be used for efficiently and deeply treating fluorine-containing organic wastewater, and interception of macromolecular pollutants and adsorption of micromolecular pollutants are synchronously realized by arranging a single material; meanwhile, the treatment system comprising the treatment device can realize continuous operation, so that the water treatment efficiency is effectively improved; moreover, the treatment device or system is matched with the regeneration method provided by the invention, so that the bed material can be recycled, secondary pollution is avoided, and the requirement of sustainable development is met.

A contaminant removal device may be configured to transport a contaminant to an ionic liquid sorbent or from the ionic liquid sorbent. The contaminant removal device may include a housing include a liquid inlet configured to introduce the ionic liquid sorbent into the housing. The contaminant removal device may further include a packed bed configured to receive the ionic liquid sorbent and rotate about a device axis to centrifugally force the ionic liquid sorbent through the packed bed.

The application relates to the technical field of chemical heat storage, in particular to a low-grade heat upgrading chemical heat storage system and a heat storage method, which comprises the following: a humidifying atomizer connected with a low-grade wastewater conveying pipe and a compressed air conveying pipe; a preheater connected with the humidifying atomizer; one end of a first packed bed module connected with the preheater through a second valve; one end of a second packed bed module connected with the preheater through a seventh valve; the other end of the second packed bed module connected with the other end of the first packed bed module through a fourth valve; the first packed bed module adapted to be used as an adsorption bed layer or a desorption bed layer, and correspondingly, the second packed bed module adapted to be used as a desorption bed layer or an adsorption bed layer. The first packed bed module and the second packed bed module are alternately used as the adsorption bed layer and the desorption bed layer respectively; the efficient continuous heat chemical reaction storage / release process is realized; the low-grade waste heat upgrading maximization is realized; and the defect of discontinuous heat chemical storage is solved.

The present disclosure provides systems and methods for performing amine capture on a heated flue gas using multiple rotating packed beds. The equipment footprint and overall equipment volume required for CO2 capture can be significantly reduced by integrating a series of rotating packed beds to perform cooling of the flue gas, removing CO2 from the flue gas by contacting with an aqueous amine solution, and scrubbing the gaseous effluent from the CO2 removal step to remove any entrained amine. The integration of cooling, CO2 removal, and scrubbing may be partially integrated into a series of packed beds by using different packing materials in various packed beds.

A light source apparatus (200) includes a gas discharge stage (210) and a metal fluoride trap (300). The gas discharge stage includes an optical amplifier (206) and a set of optical elements (250, 260). The optical amplifier includes a chamber (211) configured to hold a gas discharge medium (213), the gas discharge medium outputting a light beam. The set of optical elements is configured to form an optical resonator around the optical amplifier. The metal fluoride trap is configured to trap metal fluoride dust generated from the gas discharge stage. The metal fluoride trap includes an electrostatic precipitator (320) and a packed-bed filter (400, 402, 404) disposed around the electrostatic precipitator. The packed-bed filter includes a plurality of beads configured (406, 408) to absorb metal fluoride dust (208).

A method for producing phosphorus in which a reaction for forming gaseous phosphorus (g) by bringing phosphorus oxide generated by heating a liquid phosphoric acid compound into contact with a carbon material to reduce the phosphorus oxide and for condensing the gaseous phosphorus (g) to obtain liquid phosphorus (L) is conducted by a flow reaction with a nonoxidizing gas flow, wherein the reduction reaction of the phosphorus oxide is conducted in a carbon material-packed bed, and the condensation of the formed gaseous phosphorus (g) is substantially conducted in a condensation accelerator-packed bed which is disposed downstream of the carbon material-packed bed in contact with the carbon material-packed bed.

The embodiments presented here provide for a method and a design of heat effective rotated packed beds wherein rotating packed bed technologies have heat transfer capabilities to enhance separation, absorbing, desorbing, and interphase heat exchange capabilities. Such beds are used in industries including heavy processing, chemical, petrochemical and pharmaceutical industries.

The invention provides an energy storage type air separation system and method based on direct rectification of liquid air and cold energy recovery of waste nitrogen, the system mainly comprises an air compression and purification unit, an air liquefaction unit and an air separation unit, and in the off-peak period of a power grid load, the system cooperatively operates the processes of compression and purification, liquefaction and separation; nitrogen, oxygen and crude argon are produced while liquid air is prepared, and air liquefaction is assisted by means of cold energy released by the cold storage packed bed; in the peak period of power grid load, the air compression and purification process is operated in a low-load mode, liquid air is directly supplied to the rectification process, part of cold energy of low-temperature waste nitrogen is stored in a cold storage packed bed, and stable and continuous supply of gas products is ensured. By implementing a time-sharing operation strategy and combining an efficient cold energy recovery mechanism, the energy consumption and operation cost of the air separation system can be remarkably reduced, the peak regulation capacity of a system power grid is enhanced, the gas separation efficiency is improved, cyclic utilization of cold energy is achieved, and the liquefaction rate and the operation economical efficiency are further improved.

The application discloses an immersed self-suction type rotating packed bed, which comprises a motor, a shell, a liquid inlet, a rotor assembly, a stator and a liquid outlet; the rotor assembly comprises a rotor, a composite filler impeller, a first rotating shaft and a second rotating shaft; the rotor is fixedly connected with the output shaft of the motor through the first rotating shaft; the second rotating shaft is coaxial with the first rotating shaft and is arranged on the opposite side of the first rotating shaft, and the top end of the second rotating shaft is rollingly sleeved with the shell; the second rotating shaft is a hollow channel structure, and the end of the liquid inlet is connected with the hollow channel of the second rotating shaft; the composite filler impeller comprises annular fillers, inner vanes and outer vanes; the inner vanes are fixedly arranged on the inner side of the annular fillers, and the outer vanes are fixedly arranged on the outer side of the annular fillers. The rotating packed bed has the mixing characteristics of the rotating packed bed and the conveying characteristics of the centrifugal pump, and as a pre-reactor, the material can reach the best mixing state before entering the main reactor.

This application relates to a flexible packed bed ultragravity evaporator, including an evaporation tower and an isolation air plate disposed within the evaporation tower. The isolation air plate divides the space inside the evaporation tower into an evaporation space and an air inlet space. It also includes a hollow water separator disposed within the evaporation tower and rotatably connected to the evaporation tower, a water inlet pipe with its first end connected to a water source and its second end extending into the first end of the hollow water separator, flexible packing material filled within the evaporation space, and an ultraviolet cleaning lamp disposed on the inner wall of the evaporation tower. The first end of the hollow water separator communicates with the space outside the evaporation tower, the air inlet communicates with the air inlet space, and the exhaust port communicates with the evaporation space. The flexible packed bed ultragravity evaporator disclosed in this application uses a direct gas-liquid contact method to reduce the complexity of the equipment structure. It uses flexible packing material as the intermediate medium for gas-liquid contact, increasing the contact area while avoiding corrosion problems. Simultaneously, it can remove salt crystals from the surface of the flexible packing material, solving the clogging problem.

Three dimensional (3D) bioreactors for the large-scale expansion of immune cells and methods of use thereof are provided.SOLUTION: 3D bioreactors comprise at least one packed bed chamber comprising at least one microporous scaffold, at least one microporous scaffold coated with one or more extracellular matrix proteins (ECMs), at least one vessel comprising a fluidic media, wherein the fluidic media is configured to flow through the packed bed chamber having the at least one microporous coated scaffold, and at least one population of immune cells suspended in the fluidic media. The at least one porous scaffold coated with ECM forms an anchoring niche with low shear forces that mimics the natural growth environment of immune cells. This allows for large scale expansion of the immune cell population flowing through the coated porous scaffold.SELECTED DRAWING: FIG. 2 (1)

The invention relates to a high-efficiency nitrogen removal method based on coupling of anaerobic hydrogen production and hydrogen type autotrophic denitrification, which comprises the following steps: S1, using high-concentration organic wastewater with the COD (Chemical Oxygen Demand) concentration of more than or equal to 5000mg / L, carrying out mechanical crushing and homogenization treatment to ensure that the particle size of particles is less than or equal to 1mm, and carrying out ultrasonic treatment to enhance the dissolution of organic matters; s2, firstly inoculating acid-producing bacteria into the wastewater, and carrying out continuous stirring fermentation at 34-38 DEG C, so that the acid-producing bacteria convert complex organic matters into volatile fatty acid (VFA), and the concentration of the VFA reaches 2000-3000mg / L; adjusting the pH value to 5.5-6.5, inoculating hydrogenogens, and fermenting to produce hydrogen; s3, absorbing tail gas generated in the fermentation process with alkali liquor to obtain purified hydrogen, and collecting the purified hydrogen; and S4, loading a filler in an up-flow packed bed reactor, inoculating hydrogen autotrophic denitrifying bacteria, injecting hydrogen into the reactor through a hollow fiber membrane gas distribution device, enabling the bubble diameter to be less than or equal to 50 microns, controlling the water temperature to be 30-35 DEG C, and controlling the HRT to be 4-12 hours. Hydrogen is obtained through fermentation of organic waste and used for a denitrification system, the hydrogen utilization rate is increased, energy consumption is reduced, and the green circulation target of treating waste with waste is achieved.

The present application relates to the field of new energy technology system, specifically, a kind of biomass pretreatment continuous flow system based on solid acid packed bed tubular reactor, its main reactor, automation control system, air cooling system and raw material supply and product collection system, the automation control system includes heat conducting oil circulation system, temperature monitoring control system, material flow monitoring control system, pressure monitoring control system and electric control component, the main reactor is a double-jacketed packed bed tubular reactor, also relates to a kind of biomass pretreatment continuous flow method based on solid acid packed bed tubular reactor.The double-jacketed reaction tube of the present application promotes heat exchange, makes the temperature of reaction chamber more uniform, improves cellulose conversion rate and glucose yield, enhances safety and stability, increases fluid turbulence and radial temperature uniformity, improves reaction flow distribution, prevents blockage, easy to maintain, realizes data control, optimizes reaction process.

The invention discloses a biological method waste gas purification evaluation device and a use method thereof, and belongs to the field of waste gas treatment devices. The biological method waste gas purification evaluation device comprises a liquid storage tank; the bottom end of the supporting cylinder is fixedly connected with the top of the liquid storage tank and communicated with an inner cavity of the liquid storage tank, and an air inlet pipe is arranged on the side wall; each biological treatment cylinder assembly comprises a biological treatment cylinder body, and a packed bed is arranged at the bottom of the biological treatment cylinder body; the exhaust part is arranged on the topmost biological treatment barrel; a heating sleeve is arranged outside the biological treatment cylinder, and a temperature sensor is arranged in the biological treatment cylinder; a pH value sensor is arranged in the liquid storage tank; a CO2-O2 gas concentration sensor is arranged in the biological treatment cylinder; and the first and second gas production pieces are externally connected with a gas production pipe or a gas analysis device. According to the biological method waste gas purification evaluation device, multi-parameter cooperative regulation and control can be achieved, and a precise test environment is provided for strain screening and filler adaptability.

The invention provides a BOG and mixed hydrocarbon gas recovery system with a cold accumulation function and a working method of the BOG and mixed hydrocarbon gas recovery system. The BOG and mixed hydrocarbon gas recovery system is composed of a refrigerating machine, a double-temperature-position cold accumulation subsystem, a BOG recovery subsystem and a mixed hydrocarbon gas recovery subsystem. The refrigerating machine generates two-stage cooling capacity of-90 DEG C to-100 DEG C and-160 DEG C to-180 DEG C through nitrogen circulation, and cold energy space-time transfer is achieved through the solid packed bed cold storage unit. The liquefaction temperature difference of ethane, propane and methane is utilized to condense and separate components step by step. The system is provided with four operation modes matched with air flow fluctuation, namely refrigeration and cold storage cooperation under a normal working condition, trough energy storage, crest energy release assistance and pure cold storage operation for 4-6 hours during power failure. Through the common compressor and modular cold accumulation design, the initial investment is reduced, the separation efficiency reaches 95% or above, and zero emptying of BOG and mixed hydrocarbon gas is achieved.

The present application belongs to the field of light industry grease, and discloses a preparation method of diglyceride. The present application carries out pretreatment on the immobilized enzyme carrier, mixes free lipase and glycerol according to a certain proportion, adds the immobilized carrier into the mixed solution of the lipase and glycerol, and carries out immobilization through the adsorption method, so that the immobilized enzyme which has catalytic characteristics and can be used as a reaction substrate is prepared. The obtained immobilized enzyme can be used for the continuous production of diglyceride in a packed bed reactor. Compared with the traditional enzyme method for catalyzing glycerolysis reaction to prepare diglyceride, the immobilized enzyme obtained by the present application not only has catalytic effect, but also has enough glycerol adsorbed on the immobilized enzyme which can be used as a substrate to carry out glycerolysis reaction, so that the reaction efficiency is improved. Not only the problems of difficult recovery and poor reusability of free enzyme are solved, but also the problem of difficult continuous production due to the large viscosity of glycerol in production is solved.

The present invention relates to systems and methods for large scale expansion and activation of immune cells. Three-dimensional (3D) bioreactors for large scale expansion of immune cells and methods of using the same are disclosed. The 3D bioreactor comprises: at least one packed bed chamber comprising at least one porous scaffold; at least one porous scaffold coated with one or more extracellular matrix proteins (ECMs); at least one container containing a fluid medium configured to flow through the packed bed chamber having at least one porous coated scaffold; and at least one population of immune cells suspended in a fluid medium wherein the at least one porous scaffold coated with the ECM creates a fixed niche with low shear force that mimics the natural growth environment of the immune cells and allows large scale expansion of the population of immune cells flowing through the coated porous scaffold.