304 results about "Packed bed" patented technology

The invention provides a coal mine ventilation air methane synergistic enrichment and fluidized heat storage combustion system and method. The system comprises an air shaft diffusion tower and a ventilation air methane collecting device, the method comprises the following steps: collection and compression of ventilation air methane, cooling and boosting adsorption of an adsorption tower, pressure drop equalization of the adsorption tower, temperature rise, pressure reduction and desorption of the adsorption tower, pressure rise equalization of the adsorption tower, periodic cycle work of the adsorption tower, preheating of a packed bed of a heat storage furnace, fluidized heat storage oxidation of coal gangue and gas, and waste heat recovery and utilization. According to the invention, safe and efficient enrichment of ventilation air methane can be realized, and fluidized heat storage oxidation coupling utilization of concentrated gas and coal gangue particles can be realized; the oxidation waste heat is used as a generator heat source; the carbon reduction scheme of large-scale separation and concentration-synergistic oxidation-efficient utilization of the oversize coal mine ventilation air methane is formed, the coal industry is assisted to achieve the goal of'two wastes' and sustainable development, and large-flow, low-cost, safe and efficient treatment and utilization of the ventilation air methane discharged by an oversize low-gas mine can be achieved.

Methods and devices for analyzing non-volatile organics in exhaled breath and other aerosols using various diagnostic tools that enable rapid, low-cost point of care assays for several diseases including respiratory tract diseases such as COVID-19. The disclosed methods and systems selectively capture non-volatile organics in exhaled breath and other aerosols in a packed bed column. The non-volatile organics are eluted and samples are analysis using diagnostic devices including MALDI-TOFMS. The disclosed systems and methods provide for a diagnostic test result in less than about 20 minutes and provides for autonomous operation with minimal human intervention.

Disclosed herein is a rotating packed bed, RPB, arrangement configured to provide mass transfer between a liquid sorbent and a gas, the RPB arrangement comprising: an RPB configured to provide a substantial cross-flow between a liquid sorbent and a gas; and a spray arranged to spray the liquid sorbent onto the RPB; wherein the RPB and spray are both arranged at different longitudinal positions on a gas flow path through the RPB arrangement.

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 present disclosure provides a multipurpose multi-source heat-storing compressed air energy storage system and a method thereof, including a packed bed heat-storing device, a heat-storing circuit, a heat-releasing circuit, a gas-storing circuit, a photothermal circuit, a heating-supplying circuit and a cooling-supplying circuit, wherein the heat-storing circuit and the heat-releasing circuit are connected to the packed bed heat-storing device, respectively, and the heat-storing heat exchanger of the heat-storing circuit and the heat-releasing heat exchanger of the heat-releasing circuit are connected with the gas-storing circuit, respectively, the photothermal circuit is connected with the heat-storing circuit, the heating-supplying circuit is connected with the heat-releasing circuit and the photothermal circuit, the cooling-supplying circuit is connected to the packed bed heat-storing device and the photothermal circuit, the photothermal circuit heats the heat-storing circuit and the heat-releasing circuit.

The invention discloses a compressed carbon dioxide energy storage system based on phase change heat storage and regenerative coupling and a deep peak regulation method, relates to the technical field of energy storage, and constructs a three-stage cascade heating chain. The compressed carbon dioxide energy storage system comprises a compressor unit, a high-pressure tank, a low-pressure tank, a regeneration heater, a PCM packed bed and a turbine generator unit. An outlet of the low-pressure tank is connected with an inlet of a working medium channel in the regeneration heater through the compressor unit and the high-pressure tank, an outlet of the working medium channel in the regeneration heater is connected with an inlet of a working medium channel in the PCM packed bed, and an outlet of the working medium channel in the PCM packed bed is connected with an inlet of a heat source channel in the regeneration heater through the turbine generator set. An outlet of a heat source channel in the regeneration heater is connected with an inlet of the low-pressure tank through the first air cooler. According to the method, the output power, the energy storage density and the peak regulation response speed of the system are remarkably improved, and an efficient deep peak regulation solution is provided for renewable energy source grid connection.

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.

The utility model relates to the technical field of wastewater treatment, in particular to a sulfur autotrophic denitrification filter tank device driven by a suspended packed bed. The sulfur autotrophic denitrification filter tank device comprises a regulating tank, a sulfur autotrophic denitrification biological filter tank and a sedimentation tank which are communicated in sequence; the adjusting tank is used for homogenizing the wastewater; a suspended sulfur autotrophic denitrification biological filler is arranged in the sulfur autotrophic denitrification biological filter, and the sulfur autotrophic denitrification biological filter is used for performing a sulfur autotrophic denitrification reaction to remove nitrate nitrogen in the wastewater; the sulfur autotrophic denitrification biofilter is also connected with a sulfur autotrophic denitrification dosing tank; the settling pond is used for standing and settling the wastewater; a water outlet for discharging treated wastewater is formed in the top of the sedimentation tank. According to the utility model, the suspended biological filler is combined with the sulfur autotrophic denitrification reagent, and the suspended sulfur autotrophic denitrification biological filler is arranged in the sulfur autotrophic denitrification biological filter, so that the mass transfer efficiency can be improved, and the deep removal of nitrate nitrogen in wastewater is realized.

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 provides a semi-closed impinging stream-rotating packed bed device which comprises a shell, the liquid inlet pipe is used for inputting first liquid and second liquid; the two baffles are horizontally arranged in the shell, and the two nozzles are oppositely arranged, arranged in the centers of the two baffles respectively and communicated with the tail end of the liquid inlet pipe; the filler is arranged in the shell and is arranged on the periphery of the baffle; the rotary power source is used for driving the filler to rotate; and the liquid outlet pipe is arranged at the bottom of the shell. The device provided by the invention can weaken the impact stagnation point offset phenomenon caused by unequal liquid-liquid impact flow, ensures that the impacted liquid mixture still enters the inner edge of the rotating filler in the vertical direction, and on the other hand, the structure can enable the liquid material to flow through in an approximate plug flow form; and the phenomena of poor reaction selectivity and by-product increase caused by material back-mixing are inhibited.

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 utility model provides heat exchange and heat storage equipment of multistage particle packed bed layers, which belongs to the technical field of phase change heat storage and heat exchange and comprises a vertically arranged heat storage tank, a fluid inlet channel is arranged at the upper end of the heat storage tank, a fluid outlet channel is arranged at the lower end of the heat storage tank, a plurality of heat storage bed layers are sequentially arranged in the heat storage tank from top to bottom, and the fluid inlet channel is communicated with the fluid outlet channel. Each heat storage bed layer is filled with PCM particles in order, the heat storage bed layers are divided into five layers in the heat storage tank, PCM particles with different phase change temperatures and different phase change enthalpy values are arranged according to a certain sequence, and the heat exchange and storage device of the multistage particle packed bed layers is formed by arranging the heat storage bed layers in the heat storage tank and arranging the PCM particles with different phase change temperatures and different phase change enthalpy values in the heat storage tank. The stepped arrangement has the advantage that the heat transfer temperature difference between the PCM and the heat transfer fluid can be basically kept constant, so that the heat exchange efficiency of the system can be integrally 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.

This method for measuring the level of molten material inside a blast furnace comprises: a measurement step for measuring a vibrational frequency distribution in the height direction of a furnace body of the blast furnace using multiple vibration indicators disposed at predetermined intervals along the height direction of the furnace body; a vibrational intensity calculation step for calculating a vibrational intensity within a frequency range originating from a blast at each measurement position through Fourier transformation of the vibrational frequency distribution; a numerical value analysis step for calculating a maximum vibrational intensity distribution in a lower part of the blast furnace, which includes a furnace body iron shell, a packed bed in the blast furnace, a furnace floor brick, and a coagulation layer of the molten material in the blast furnace, using a numerical value analysis model with the blast amount and the level of molten material inside the blast furnace as variables; and a molten material level calculation step for calculating the level of molten material at which the difference between the vibrational intensity calculated in the vibrational intensity calculation step and the maximum vibrational intensity distribution calculated in the numerical value analysis step is minimized, and setting the calculated molten material level as the position of the level of molten material inside the blast furnace.

The invention relates to the technical field of waste gas treatment, in particular to a medicine production waste gas treatment method which comprises the following steps: step 1, waste gas pretreatment: 1, particulate matter removal: electrostatic dust collection and ceramic membrane filtration are performed, the pore size of a ceramic membrane is 0.1 mu m, and the PM2.5 retention rate is greater than 99%; 2, temperature and humidity regulation: spraying and cooling to 40 + / -2 DEG C, and controlling the humidity to be 60% RH; step 2, supergravity rotating absorption: adopting a supergravity rotating bed, and when the supergravity factor beta is 200, the rotating speed is 2500rpm, the gas-liquid ratio is 1: 0.3 and the inlet gas concentration is 5000mg / m, the single-stage absorption rate is greater than 95%, and the outlet concentration is less than 250mg / m. A traditional packed tower is replaced with a supergravity rotating bed (a rotating packed bed RPB), and the gas-liquid mass transfer efficiency is improved by 5-8 times; the thickness of a liquid film in a centrifugal force field is reduced to a micron order, a diffusion path is shortened, and the absorption rate constant (KLa) is increased to 10 times that of an atmospheric tower.

The invention relates to a combined structure of small-diameter tower plates, which is mainly used for liquid collection, distribution and mass transfer processes, and is particularly suitable for synthesis and refining processes of dimethyl sulfide (DMS) and dimethyl sulfoxide (DMSO). The device comprises a tray (1), an upper flange (2), a clamping piece (3), a lower flange (4), a tubular distributor (5) and a packed bed layer limiter / distribution guide plate (6) from top to bottom, the tower tray (1) adopts a radial flow design, and liquid descends from the middle to flow towards the periphery and then flows from the periphery to the middle; and the tubular distributor (5) and the packed bed layer limiter / distribution guide plate (6) are combined into a whole. According to the small-diameter tower plate structure, the mass transfer efficiency is remarkably improved.

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 present disclosure relates to a Rotating packed bed (RPB) (101) wherein the rotor assembly (106) is supported on a roller assembly (100) for improved mechanical integrity and low vibrations and a method (200) thereof. The roller assembly (100) includes at least three rollers (102) distributes a load that is disposed in a rotating shaft (103) of the rotor assembly (106). The at least three rollers (102) are adapted to configure in a pre-determined configuration i.e. in triangular pitch. The outer layer (104) is disposed an exterior surface (104-1) of each of the at least three rollers (102) respectively. Further, the rotating shaft (103) is positioned at the center of the first (102-1), the second (102-2), and the third (102-3) rollers, such that the rotating shaft (103) comes in contact with the outer layer (104) of the three rollers (102-1), (102-2), (102-3) thereby provide support to RPB (101).

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).