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2271results about "Filter regeneration" patented technology

Atmospheric carbon dioxide capture system

A direct air capture (DAC) of CO2 system includes a reaction reactor having a solid, amine-functionalized sorbent configured to sequester CO2 from air; an in-situ dual-function device configured as a CO2 conversion reactor and an exchange fluid regeneration device; and the exchange fluid, recirculating between the reaction reactor and the dual-function device, configured to capture the sequestered CO2 from the solid sorbent in the reaction reactor and release the captured CO2 in the conversion reactor, the exchange fluid including one or more amino acids.
Owner:ROBERT BOSCH GMBH

Zeolite adsorption and desorption integrated treatment system

The invention discloses a zeolite adsorption and desorption integrated treatment system, and particularly relates to the field of zeolite separation treatment, and the zeolite adsorption and desorption integrated treatment system comprises a process sensing module, a dynamic partition control module, a global optimization control module and a cooling regeneration module. According to the zeolite adsorption and desorption integrated treatment system, the problem of blind operation in the traditional technology is solved through the process sensing module, a data basis is provided for dynamic partition, the intelligent monitoring level is improved, and the performance of an adsorbent is fully exerted; the problem of non-uniform heat and mass transfer of a bed layer is effectively solved through the dynamic partition control module, the desorption heat utilization efficiency is improved, and meanwhile, the service life of an adsorbent is prolonged; a dynamic optimization function is constructed through the global optimization control module, energy consumption, solvent recovery income and stability are comprehensively considered, self-adaptive adjustment of operation parameters is achieved, the energy consumption is reduced while the processing efficiency is guaranteed, and the environmental benefits are remarkably improved.
Owner:QINGDAO ZHONGZHOU LANKAI ENVIRONMENTAL PROTECTION TECH CO LTD

Carbon dioxide trapping device capable of cyclically operating

The utility model provides a cyclically-operated carbon dioxide trapping device. A shell of the cyclically-operated carbon dioxide trapping device is connected with an air inlet pipeline, an air outlet pipeline and an exhaust pipeline; the shell is internally provided with a reaction box body, the reaction box body is provided with two reaction cabins, and each reaction cabin is internally provided with a fan, a heater and a carbon dioxide adsorption structure; the air inlet pipeline is connected to the air inlets of the two reaction cabins and is close to the draught fan, the draught fan is used for sucking indoor air into the corresponding reaction box bodies and enabling the indoor air to flow through the heater and the carbon dioxide adsorption structure, and the carbon dioxide adsorption structure is used for adsorbing carbon dioxide in the flowing air; the heater is used for heating flowing air and desorbing carbon dioxide adsorbed in the carbon dioxide adsorption structure; and the two reaction cabins alternately perform adsorption and desorption of carbon dioxide. The device is convenient to operate and can continuously and efficiently control the concentration of indoor carbon dioxide.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP CO LTD

Inert gas generating system

The invention provides an inert gas generation system, and relates to the technical field of industrial gas production. The inert gas generation system comprises the following modules: a gas pretreatment module, an intelligent separation module, a dynamic purification module, a pressure regulation and control module, a quality analysis module, a safety control module and an energy efficiency optimization module, and the gas pretreatment module is used for removing particulate matters through an electrostatic dust collection device by adopting a multi-stage gradient filtering algorithm based on ambient air input, adjusting humidity by combining a dew point control technology, forming a standardized gas source and generating a standard gas source. Through combination of a multi-stage gradient filtering algorithm and a dew point control technology, collaborative treatment of particulate matters and humidity is realized, stable gas source input is formed, the reliability of a subsequent processing link is improved, membrane separation parameters are dynamically predicted by applying a convolutional neural network model, and the permeation efficiency of a hollow fiber membrane stack is optimized.
Owner:HP TRONIC (SUZHOU) CO LTD

Rinsing bath of melt filter

The utility model discloses a rinsing bath for a melt filter. The rinsing bath comprises a control cabinet, a transfer device, a rinsing device and a bearing bracket mechanism, the transfer device comprises a lifting driving mechanism, a swing driving mechanism, a telescopic overhanging mechanism and a support locking mechanism. According to the melt filter rinsing bath, the lifting driving mechanism, the swing driving mechanism, the telescopic overhanging mechanism and the support locking mechanism are matched, so that locking and hoisting of the bearing support mechanism can be achieved, and therefore a filter borne on the bearing support mechanism is fed into a rinsing device to be subjected to rinsing treatment; and after water washing treatment is completed, the bearing support mechanism and all the filters are lifted and taken out together, manual participation is greatly reduced, and the batch cleaning efficiency of the filters is effectively improved.
Owner:JIANGSU CHAOQUN MACHINERY TECH DEV CO LTD

Preparation method and application of self-crosslinking hydrogel containing capsaicin functional structure

The invention discloses a preparation method and application of self-crosslinking hydrogel containing a capsaicin functional structure, and belongs to the technical field of dye adsorption materials. The capsaicin functional structure monomer is introduced into an acrylic acid system, so that the self-crosslinking of the hydrogel is realized, and meanwhile, the adsorption performance of the hydrogel is remarkably improved; mono-substituted capsaicin functional structure monomers containing carboxyl and sulfonic acid groups are used as components, a disubstituted capsaicin functional structure monomer with polyhydroxy and carboxyl is used as a cross-linking agent, the self-crosslinking hydrogel with multiple adsorption sites is successfully constructed through free radical polymerization, and the adsorption capacity and efficiency of the hydrogel are greatly improved. The hydrogel-based carbon material is obtained by carbonizing the self-crosslinking hydrogel containing the capsaicin functional structure, the adsorption performance of the hydrogel material is further improved, the obtained hydrogel-based carbon material can be desorbed and recycled in ethyl alcohol, and the service life of the hydrogel-based carbon material is prolonged. And the problem of secondary pollution of the existing hydrogel material in the acid / alkali desorption process is effectively avoided.
Owner:SANYA INST OF OCEANOGRAPHY OCEAN UNIV OF CHINA

Separation and purification method of urokinase

The invention provides a separation and purification method of urokinase, and relates to the technical field of separation and extraction. The separation and purification method comprises the following steps: S1, regulating the pH value of male urine to 8.5, standing, and taking supernate; s2, mixing the supernate with an adsorption material, and eluting with an eluent to obtain a urokinase crude product solution; the adsorption material is a core-shell silica gel polymer, Fe3O4atSiO2-NH2 is taken as a core, and polystyrene is taken as a shell; the eluent is a sodium citrate buffer solution with the concentration of 0.5 to 0.15 M, acetonitrile with the concentration of 1 to 5 weight percent and EDTA (Ethylene Diamine Tetraacetic Acid) with the concentration of 0.5 to 1.5 mM; and S3, carrying out anion exchange column chromatography on the urokinase crude product solution, eluting with an eluent, and precipitating to obtain the urokinase. The urokinase prepared by the method has the advantages of high polymer urokinase content, high recovery rate and high activity yield.
Owner:HUBEI RENFU EUREKA BIOTECHNOLOGY CO LTD

Circulating filtering device of ultrasonic cleaning machine for cleaning coal mine filter element

The invention relates to the technical field of circulating filtration, in particular to a circulating filtration device of an ultrasonic cleaning machine for cleaning a coal mine filter element, which comprises a cleaning machine main body, a cleaning tank is formed in the cleaning machine main body, an ultrasonic transducer is fixedly mounted on the inner wall of the cleaning tank, a filter plate is slidably mounted in the cleaning tank, and the filter plate is fixedly mounted on the inner wall of the cleaning tank. A rotatable cleaning cylinder is arranged above the filter plate, the cleaning cylinder is connected with the cleaning machine main body through a moving mechanism, a through hole is formed in the outer surface of the cleaning cylinder, a supporting plate is installed in the cleaning cylinder through a sliding structure, a poking needle is fixedly installed on one side of the supporting plate, and the poking needle penetrates through the through hole in a sliding mode. And the poking needle is in contact fit with the surface of the filter plate. According to the circulating filtering device of the ultrasonic cleaning machine for cleaning the coal mine filter element, the cleaning cylinder and the poking needle are arranged, the cleaning cylinder can rotate when moving so as to drive the poking needle to rotate, and the poking needle can separate gelatinous substances from the filter plate.
Owner:CHINA SHENHUA ENERGY CO LTD SHENDONG COAL BRANCH

Low-concentration carbon dioxide trapping system and method

The invention discloses a low-concentration carbon dioxide trapping system and method, and belongs to the technical field of gas separation and trapping. The system comprises an air filter, a zeolite adsorption rotating wheel, a desorption heater, a desorption fan, a centrifugal fan, a pressure swing adsorption module (at least comprising double towers), a vacuum pump, a CO2 storage tank, a rear-end purification and utilization system and a control system. According to the method, trapping is realized through pretreatment, first-stage adsorption concentration, desorption transfer, second-stage purification, collection and storage and circulating operation. The zeolite adsorption rotating wheel is used for adsorbing and concentrating low-concentration CO2, and then the low-concentration CO2 is purified through the pressure swing adsorption module, so that the problems of low low-concentration trapping efficiency and high energy consumption in the prior art are solved. The device has the advantages of high trapping efficiency, low energy consumption, continuous operation, wide application scene and the like, is suitable for trapping low-concentration CO2 in atmosphere and industrial tail gas, and provides an efficient technical scheme for carbon emission reduction.
Owner:SHANDONG SHANLAN ENVIRONMENTAL GROUP CO LTD

Activated carbon anoxic pyrolysis and steam regeneration process method and device

The invention discloses an activated carbon anoxic pyrolysis and steam regeneration process method and device, and relates to the field of activated carbon regeneration. The process method comprises the following steps: S1, dehydration preparation: reducing the moisture content of a carbon layer to 45% through hydraulic conveying and negative pressure dehydration; s2, drying pyrolysis and air stripping, wherein a carbon layer is heated to 300-400 DEG C through circulating heating of superheated steam and tail gas; s3, steam activation: introducing 900 DEG C tail gas to raise the temperature of the carbon layer to 800-850 DEG C for activation reaction; and S4, cooling, namely sequentially cooling to 100 DEG C or below through steam and cold water to complete regeneration of the activated carbon. The energy efficiency utilization rate is excellent, the pore structure is fully recovered, the specific surface area, the polar group content and the adsorption performance of the regenerated activated carbon can be remarkably improved, and the service life of the activated carbon is prolonged.
Owner:TIANJIN TISUN ITASCA TECH +1

Gas purification real-time monitoring method, system and device and medium

The invention discloses a gas purification real-time monitoring method, system and device and a medium, and belongs to the technical field of gas purification. The method comprises the following steps: a data acquisition stage: acquiring inlet gas flow and outlet component data; in the adsorbent state monitoring stage, the adsorbent state is monitored in real time through the monitoring point position in the adsorption barrel; in the adsorption capacity calculation stage, the residual adsorption capacity is predicted through an impurity penetration curve model on the basis of inlet flow and outlet component data, and bidirectional verification and correction are carried out on the residual adsorption capacity and an internal monitoring state; in the regeneration time prediction stage, the optimal regeneration time is dynamically predicted according to discharged gas component analysis and residual adsorption capacity; in the real-time regulation and control stage, parameters of the purifier and the regenerative heater are adjusted in real time according to the prediction result. Accurate evaluation of the state of the adsorption cylinder and intelligent optimization of the regeneration process are achieved, the utilization rate of the adsorption cylinder is remarkably increased, and the total energy consumption of regeneration is reduced.
Owner:SHANGHAI ZHIJIA SEMICON GAS CO LTD

Heat adsorption type drying machine with three-tower structure and adsorption regeneration process of heat adsorption type drying machine

The invention discloses a heat adsorption type drying machine with a three-tower structure and an adsorption regeneration technology of the heat adsorption type drying machine, and belongs to the technical field of adsorption type drying machines. The dryer comprises three adsorption towers, a regeneration system and a PLC control system, adsorbents are arranged in the adsorption towers, and the regeneration system comprises an electric heater and an air blower which are connected through a steel pipe. According to the dryer, the purpose of saving energy is achieved through the peak-valley-flat electricity price, the adsorption tower A, the adsorption tower B and the adsorption tower C conduct adsorption in the daytime, the regeneration and cold blowing process is conducted when the valley electricity price is utilized, and therefore the operation cost of the dryer is reduced; the adsorption regeneration process comprises two working modes: in the first working mode, adsorption is carried out for 12 hours in a tower A, adsorption is carried out for 12 hours in a tower B, and adsorption is carried out alternately in a tower C; and a second working mode: one tower performs adsorption work, one tower performs heating regeneration, and the other tower can perform cold blowing. The adsorption dryer with the three-tower structure can meet the requirement of a customer for reasonably selecting an off-peak electricity period for heating regeneration, so that the operation electric energy of equipment is greatly reduced.
Owner:LIAONING JIUYI TECHNOLOGY CO LTD

Industrial wastewater filter for environmental protection

The invention relates to the field of wastewater filtration, in particular to an environment-friendly industrial wastewater filter, which comprises a tank body consisting of a shell and a top cover, the filter cartridge is fixedly arranged in the tank body; a fixing frame is fixedly mounted on the inner wall of the top cover; the pressure-controlled cleaning mechanism is arranged between the fixing frame and the filter cartridge, the pressure-controlled cleaning mechanism comprises a flushing assembly and a control assembly, and the control assembly is used for gradually switching the filter from a filtering state to a cleaning state in the process that the water pressure is gradually increased when the filter cartridge is blocked; the pressure-controlled cleaning mechanism is arranged to automatically sense the pressure gradient caused by the blockage of the filter cartridge, and the pressure change is utilized to drive the adjusting plate to rotate, so that the state switching from sewage filtering to medicament cleaning is automatically completed; in the cleaning stage, all-directional preliminary flushing of high-pressure liquid medicine is achieved by rotating the medicine spraying pipe, closed soaking can be formed in the filter cartridge through continuously injected liquid medicine, and chemical softening and deep cleaning of stubborn dirt such as oil dirt are achieved.
Owner:WUXI XIXI CHEM MASCH PARTS CO LTD

Self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower

The invention relates to the technical field of activated carbon adsorption towers, in particular to a self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower which comprises an adsorption tower body, an adsorption mechanism is arranged on the outer side of the adsorption tower body, and a recycling mechanism is arranged on the front side of the adsorption mechanism. The adsorption mechanism comprises a vibration assembly, a sweeping assembly, a leading-in assembly, a conveying assembly and a flow dividing assembly, the vibration assembly is arranged on the inner side of the adsorption tower body, the sweeping assembly is arranged on the inner side of the vibration assembly, the leading-in assembly is arranged on the inner side of the vibration assembly, and the conveying assembly is arranged on the top of the vibration assembly; the flow dividing assembly is arranged on the front side of the conveying assembly. The invention provides a self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower which is provided with a structure for circularly cleaning and recycling residual impurities, so that the residual impurities on the surface of an activated carbon plate can be cleaned and recycled, and the long-term use stability of the activated carbon plate is improved.
Owner:SUZHOU WANSHIYI ENVIRONMENTAL PROTECTION RES CO LTD

Organic waste gas steam desorption condensation regeneration recovery device

The invention discloses an organic waste gas steam desorption, condensation, regeneration and recovery device, and relates to the technical field of organic waste gas regeneration and recovery, the organic waste gas steam desorption, condensation, regeneration and recovery device comprises an adsorption box and a first fan, one side of a rotating plate is provided with an alternating mechanism, and the top end of a condensation cylinder communicates with a self-cleaning mechanism; the alternating mechanism and the self-cleaning mechanism are dual systems, the alternating mechanism adopts a four-turntable modular design, each turntable bears a plurality of condenser pipes, and the condenser pipes can be quickly taken and placed through station alternating driven by a rotating plate in cooperation with rotating positioning of the turntables; the self-cleaning mechanism is provided with an overturning roller, automatic taking and placing of the condensation pipe are completed under the condition that a condensation shell is kept in a sealed state, and after the condensation pipe is transferred to a brushing station through a clamping head, surface attachments are efficiently removed through relative rotation movement of a pipe body and bristles. According to the composite design, the whole-process non-stop operation is realized in a breakthrough manner, the continuous and stable operation of the organic waste gas treatment system is ensured, the overall treatment efficiency is improved, and meanwhile, the maintenance cost is reduced.
Owner:赣州市生态环境技术服务中心 +1

Intelligent clean gradient composite water purification filter element and preparation method thereof

The invention relates to the technical field of water treatment filter materials, in particular to an intelligent clean gradient composite water purification filter element and a preparation method thereof. The filter element adopts an integrated design of'natural gradient base material + ZIF-67 function enhancement + fluorescence-ultrasonic intelligent regeneration ': modified vegetable sponge is used as a porous support layer, a silica gel / ZIF-67 composite gradient layer is constructed on the porous support layer to realize adsorption and antibacterial dual functions, and dopamine-aluminum ions are used for composite surface modification to enhance hydrophilicity and interlayer binding force; a matched automatic system senses pollution in real time through the fluorescence monitoring module and triggers the ultrasonic regeneration module to complete self-cleaning, and the flux recovery rate is larger than or equal to 97.5%; the interception rate of the filtering element to anabaena under the operation pressure of 0.1-0.3 MPa is larger than or equal to 99.2%, the filtering flux is increased by 6-8 times compared with that of a commercial element, the filtering element can tolerate complex water quality in the coexistence of drugs and personal care products, natural vegetable sponge serves as a base material, and the filtering element has the advantages of biocompatibility and low cost and is suitable for drinking water purification and eutrophication water body treatment.
Owner:SUZHOU CHUNER PURIFICATION TECHNOLOGY CO LTD

Efficient activated carbon adsorption box for waste gas treatment

The invention discloses an efficient activated carbon adsorption box for waste gas treatment, and relates to the technical field of waste gas treatment.The efficient activated carbon adsorption box comprises a box body and a core changing assembly, a gas inlet pipe is arranged at the lower end of one side of the box body, a filtering frame is slidably connected to the interior of the box body, breathable nets are arranged on the two sides of the filtering frame, and the core changing assembly is connected to the top of the filtering frame; and the core changing assembly comprises a storage hopper. Through dynamic sealing between the conveying rollers and the filter frames, internal activated carbon is continuously replaced, meanwhile, waste gas is subjected to countercurrent purification through the three layers of filter frames along an S-shaped path under the guidance of the partition plates, waste gas with low pollution is treated through fresh activated carbon particles, and high-pollution airflow is adsorbed through a saturated activated carbon layer; according to the design, the adsorption efficiency of activated carbon is utilized to the maximum extent, so that the waste gas treatment effect is improved, the double-shaft motor drives the conveying rollers to realize automatic replacement of internal activated carbon particles in the equipment in the use process, shutdown maintenance is not needed, and the waste gas treatment continuity is remarkably improved.
Owner:HUBEI GONGTENG NEW MATERIAL TECHNOLOGY CO LTD

Real-time monitoring data control method for adsorption separation and adsorption separation device

The invention discloses a real-time monitoring data control method for adsorption separation and an adsorption separation device, and relates to the technical field of adsorption and analysis regulation and control. The method comprises the following steps: setting a first cleanliness threshold value of finished gas and a second cleanliness threshold value of desorption gas; according to the current state of the first cleanliness and the current state of the second cleanliness, the regeneration medium flow of the analysis process is dynamically adjusted; or when the first cleanliness reaches the first cleanliness threshold value and the second cleanliness reaches the second cleanliness threshold value, the current adsorption process is ended, and the working mode is switched; if the second cleanliness does not reach the threshold value, the regeneration medium flow is increased until the switching condition is met. Saturation regulation is carried out by monitoring the dual states of the finished gas and the desorption gas in real time, actual working condition fluctuation can be responded in a self-adaptive mode, the quality stability of the finished gas is guaranteed, meanwhile, the problem that regeneration is insufficient or regeneration media are excessively consumed is solved, and operation energy consumption is remarkably reduced.
Owner:优之源智能科技(深圳)有限公司

Method for hydrothermal carbonization and activation of carbon dioxide capture materials

A carbon capture and storage (CCS) material may be synthesized using a wide variety of feedstock from agricultural, forestry, and sanitary wastes. The feedstock is heated under a reaction medium. After adding a solution of an activating alkali metal compound to the feedstock, the feedstock and activating alkali metal compound are heated under flowing gases to form the CCS material. This CCS material may be used and regenerated multiple times, then used as a soil amendment.
Owner:UNIVERSITY OF SOUTH CAROLINA

Calcium-based CO2 adsorbent as well as preparation method and application thereof

The invention discloses a calcium-based CO2 adsorbent as well as a preparation method and application thereof. The calcium-based CO2 adsorbent comprises a CaAl12O19-CaSiO3 reticular skeleton structure, and the CaAl12O19-CaSiO3 reticular skeleton structure is enclosed to form a pore cavity; and a plurality of CaO particles dispersed within the pore cavity. The possibility that the calcium-based CO2 adsorbent is caked in high-temperature CO2 capture circulation can be effectively reduced, and the adsorption performance and the circulation stability of the calcium-based CO2 adsorbent are better improved.
Owner:DECARBON TECH (SHENZHEN) CO LTD

Continuous regeneration process of saturated adsorption waste activated carbon

The invention provides a continuous regeneration process of saturated adsorption waste activated carbon, and relates to the technical field of adsorbent recycling. The regeneration process comprises the following steps: sequentially carrying out cleaning, sieving, impurity removal and filter pressing on waste activated carbon to obtain pretreated waste activated carbon; carrying out drying treatment on the activated carbon, and then carrying out microwave regeneration to obtain activated and regenerated activated carbon; carrying out solid-liquid separation on tail gas generated in the drying process, recovering solids, carrying out microwave regeneration, and enabling gas to enter a tail gas treatment system; the tail gas generated in the microwave regeneration process is dedusted, and dust and dedusted tail gas are separated; the dust is regenerated activated carbon, and the dust-removed tail gas enters a tail gas treatment system; the tail gas treatment system comprises a first spray tower, a secondary combustion chamber, a quench tower, a bag-type dust collector and a second spray tower. The regeneration process is wide in application range, damage to the structure of the activated carbon is small, and the saturated adsorption capacity of the activated carbon is basically unchanged after five times of adsorption-regeneration cycles.
Owner:BEIJING ZHONGKE BRUNP RECYCLING TECHNOLOGY INNOVATION CO LTD

Liquefied air energy storage system

The utility model discloses a liquefied air energy storage system which comprises a molecular sieve water separator and a molecular sieve adsorption tower, a separator air output pipe is connected with a top gas connecting pipe of the molecular sieve adsorption tower, and a bottom gas connecting pipe of the molecular sieve adsorption tower is connected with a cold box front compressor unit. The cold box front compressor unit is communicated with an air pipeline in the cold box, and an outlet of the air pipeline in the cold box is communicated with a first liquefied air storage tank through a first liquefied air output pipe with a first throttling valve; the output end of a liquid air pressure pump on a first liquefied air storage tank output pipe of the first liquefied air storage tank is communicated with the air input end of the expansion unit, the air output end of the expansion unit is provided with a hot blowing conveying pipe and a cold blowing conveying pipe, and the hot blowing conveying pipe is communicated with a bottom gas connecting pipe through a first heater and an electric heater; and the output end of the cold blowing gas conveying pipe is connected to the output end of the electric heater output pipe. The device has the advantages of simple structure, low energy consumption and full utilization of heat energy.
Owner:江苏富瑞能源服务有限公司

Regeneration method and system of refining agent

The invention relates to the technical field of waste gas recycling, in particular to a refining agent regeneration method and system. The refining agent is used for removing impurities in polyolefin hydrocarbon raw materials, and the regeneration method comprises the following steps: sequentially and repeatedly purging and cooling the polyolefin refining agent by using nitrogen to respectively obtain first regeneration cooling exhaust gas and a purging refining agent; sequentially carrying out liquid separation and first pressure swing adsorption on the first regeneration exhaust gas to obtain a first hydrocarbon adsorption material; pressurizing and displacing the purging refining agent by using a polyolefin raw material to respectively obtain mixed exhaust gas and a regenerated refining agent; the mixed exhaust gas is subjected to liquid separation and second pressure swing adsorption in sequence, and a second hydrocarbon adsorption material is obtained; and desorbing the first hydrocarbon adsorption material and the second hydrocarbon adsorption material to obtain the polyolefin recycled material. According to the regeneration method, a three-stage coupling separation system of purging regeneration, liquid separation and pressure swing adsorption is constructed, and compared with a traditional thermal regeneration method, the recovery rate of hydrocarbon raw materials in regenerated exhaust gas of the refining agent can be increased only through pressure swing adsorption.
Owner:PETROCHINA CO LTD +1

Conveyor motivated liquid desorber

A conveyor motivated water desorber includes a hollow prism defining a desorption channel and includes an ingress port at a proximal end of the prism, and an egress port at a distal end of the prism, a conveyor motivating movement of multiple sorbent objects through the desorption channel, an injection port and an ejection port fixed at opposite ends of the prism with a desorption zone defined therebetween within the desorption channel, a water recirculation loop recirculating water injected into the desorption channel through the injection port and exiting the channel at the ejection port with a temperature increasing from the injection port into the desorption zone and decreasing from the desorption zone to the ejection port, and a gas takeoff port fixed to the prism and coupling a gas storage reservoir to the desorption channel.
Owner:SPIRITUS TECH PBC

Processes for removing perfluoroalkyl substances and regenerating an adsorbent used with same

Processes and apparatuses for degrading PFAS into calcium fluoride, carbon dioxide, and water. PFAS are heated and introduced to a calcium base which will degrade the PFAS. The PFAS may be in a stream that is a PFAS enriched stream formed by desorbing the PFAS from an adsorbent which removed the PFAS from a contaminant stream. The PFAS may be desorbed in the presence of the calcium base. The calcium base may be calcium hydroxide, calcium oxide, calcium carbonate, or combinations thereof.
Owner:UOP LLC

Preparation method and application of PDA / CS composite adsorbent loaded with bimetallic system

The invention belongs to the technical field of water treatment, and particularly relates to a preparation method and application of a PDA / CS composite adsorbent loaded with a bimetallic system, and the preparation method comprises the following steps: 1) dissolving dopamine in a Tris buffer solution to prepare a dopamine prepolymer solution; then adding FeCl3, and carrying out constant-temperature water bath; centrifuging the obtained black suspension, performing suction filtration, washing, collecting a filter cake, and performing freeze drying to obtain PDA microspheres; 2) dispersing PDA microspheres in deionized water, and carrying out ultrasonic treatment until the PDA microspheres are uniformly dispersed; 3) dissolving chitosan in an acetic acid solution, and adding CuCl2 to prepare a mixed solution; the suspension obtained in the step 2 is dropwise added into a mixed solution for constant-temperature water bath, the pH of the mixed solution is adjusted through a NaOH solution, glutaraldehyde is added for constant-temperature water bath after constant-temperature water bath, and 4, the obtained suspension is subjected to centrifugation, suction filtration, washing, filter cake collection and freeze drying.
Owner:ANGANG STEEL CO LTD

Treatment device and treatment method for adsorbing and desorbing VOCs waste gas through zeolite molecular sieve

The invention discloses a treatment device and a treatment method for adsorbing and desorbing VOCs (Volatile Organic Compounds) waste gas by using a zeolite molecular sieve, and relates to the technical field of waste gas treatment. The treatment device for adsorbing and desorbing the VOCs waste gas through the zeolite molecular sieve comprises a shell, the interior of the shell is divided into an adsorption area, a desorption area and a cooling area, and the treatment device further comprises fan-shaped zeolite sheets and a round zeolite rotating wheel which is arranged in the shell and is formed by splicing the multiple fan-shaped zeolite sheets; the rotating shaft is located in the middle of the zeolite rotating wheel, and the fan-shaped zeolite sheets can move on the rotating shaft in the axial direction. According to the invention, the plurality of fan-shaped zeolite sheets are arranged and spliced to form the circular zeolite rotating wheel, and under the cooperation of the sliding parts and the guide grooves, the two adjacent fan-shaped zeolite sheets are controlled to be staggered in the axial direction of the zeolite rotating wheel when being positioned in the desorption area and the cooling area, so that the contact area between the fan-shaped zeolite sheets and hot air and cooling air is increased, and efficient desorption and cooling are favorably realized.
Owner:山东和发环保科技有限公司

Multi-tower adsorption dehydration regeneration system based on heat exchanger

The invention relates to the technical field of adsorption dehydration, and discloses a multi-tower adsorption dehydration regeneration system based on a heat exchanger. The system comprises a heat exchange coordination control module, a multi-tower adsorption balance module, a dehydration efficiency optimization module, a regeneration process regulation and control module and a system state monitoring module. The heat exchange coordination control module analyzes the heat exchange matching and heat balance adaptation degree and generates a heat exchange distribution control parameter set; the multi-tower adsorption balance module adjusts the adsorption distribution balance in the towers to generate an adsorption balance optimization parameter set; the dehydration efficiency optimization module adjusts related parameters of the adsorbent and generates a dehydration efficiency optimization result; the regeneration process regulation and control module dynamically adjusts a regeneration gas path distribution path and a temperature-pressure ratio to generate a regeneration process regulation and control data set; the system state monitoring module analyzes the operation state and the switching time and generates a system state monitoring data table. Through the synergistic effect of all the modules, efficient and stable operation of the multi-tower adsorption dehydration regeneration system is achieved.
Owner:HANGZHOU LINUO MASCH CO LTD

Carbon sequestration materials and related systems, articles, and methods

The present disclosure generally relates to carbon sequestration materials, and related systems, articles, and methods. In some embodiments, the carbon sequestration material comprises a gel. In some embodiments, the gel comprises a hydrophilic material, a thermo-responsive polymer, and a carbon dioxide capture medium. In accordance with some embodiments, the gel, when in the presence of water, is capable of sequestering and / or releasing gaseous carbon dioxide. In some embodiments, the gel has a relatively large sequestration capacity such that a relatively large amount of carbon dioxide per gram of gel can be sequestered by the gel. In some embodiments, the gel sequesters a surprisingly large amount of carbon dioxide when exposed to relatively humid conditions. In some embodiments, the gel releases an advantageous amount of gaseous carbon dioxide that was previously sequestered by the gel.
Owner:MASSACHUSETTS INST OF TECH