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42results about How to "Improve the desorption effect" patented technology

Granular active carbon desorption treatment device

The utility model provides a granular activated carbon desorption treatment device, which comprises an electric heating box, a connecting plate, a flexible rubber bag and a stirring mechanism, the stirring mechanism comprises a rotating motor, a rotating shaft, a stirring blade, a rotating rod, a raised head and a synchronizing mechanism, after activated carbon is placed in the electric heating box, the activated carbon can be desorbed in a high-temperature environment, and the desorption effect is good. In the high-temperature desorption process, the rotating motor can drive the stirring blades to rotate through the rotating shaft, the stirring blades can change the position of the activated carbon in the horizontal direction, and meanwhile, the rotating rod can synchronously move with the rotating shaft through the synchronizing mechanism; the raised heads arranged on the top surface can jack up different positions of the flexible rubber pocket in the rotating process, so that the activated carbon can be changed in position in the vertical direction, the activated carbon at different positions can be uniformly heated, and the desorption effect is improved.
Owner:HAINAN XINGGUANG ACTIVATED CARBON

Test device and method for measuring residual gas of coal sample based on GC double-column method

The invention discloses a test device and method for measuring residual gas of a coal sample based on a GC double-column method. The device comprises a high-purity hydrogen steel cylinder, a high-purity helium steel cylinder, a vacuum pump containing a vacuum gauge, a computer, and a liquid sealing coal sample tank, a sleeve type gas storage device and a gas chromatograph which are connected in sequence, a first heating thermocouple, an electromagnetic valve and a spherical grinding machine are arranged in the lower layer of the liquid sealing coal sample tank; a pressure gauge, a thermometer and a first flow sensor which are used for measuring gas are arranged at an outlet of the capacity-controllable sleeve type gas storage device; the gas chromatograph is provided with a sampling device, a double chromatographic column device, a double thermal conductivity detector, a second flow sensor and a temperature sensor which are connected in sequence; and a heating device is also arranged in the box body. According to the invention, double gas chromatographic columns and double thermal conductivity detectors are selected, the separation effect and detection effect of each component gas are more excellent, and the subsequently measured wave peak value and wave width are more accurate.
Owner:CHINA COAL TECH & ENG GRP SHENYANG ENG CO +1

Efficient recovery system for volatile organic compounds in atmosphere

The invention discloses an efficient recovery system for atmospheric volatile organic compounds, and relates to the technical field of waste gas recovery, the efficient recovery system comprises a fan, a concentration device, a heater and a condenser, the concentration device comprises a shell, a zeolite rotating wheel is rotatably connected to the interior of the shell, a motor is fixedly mounted on one side of the shell, and the efficient recovery system further comprises a speed regulating mechanism; the speed adjusting mechanism comprises a baffle slidably connected to the interior of the waste gas pipeline, one side of the baffle is provided with a first spring, one side of the baffle is fixedly connected with a shaft rod which penetrates through the zeolite rotating wheel and is slidably connected with the zeolite rotating wheel, and a speed changing assembly and an area adjusting mechanism are arranged between the shaft rod and the motor; the two dividing rods and the frame body divide the surface of the zeolite rotating wheel into an adsorption area, a desorption area and a cooling area, the rotating speed of the zeolite rotating wheel can be adjusted through the speed changing assembly, the rotating speed of the zeolite rotating wheel is matched with the exhaust rate of waste gas, and therefore unnecessary energy loss is reduced.
Owner:WENZHOU ACAD OF ECO-ENVIRONMENTAL SCI

A kind of adsorption filtration device for hydrogen purification

This invention belongs to the field of hydrogen purification technology, specifically an adsorption and filtration device for hydrogen purification, including a device base; a first purification box is fixedly connected to the top of the device base; an air inlet pipe is fixedly connected to the outside of the first purification box; by pulling out two push-pull boxes from the first and second purification boxes respectively, and then pulling out two sliding plates from the push-pull boxes, the used solid adsorbent can be quickly discharged. Subsequently, the bottom of multiple storage cylinders is sealed with the filter screen plate below, and new solid adsorbent is added into the multiple storage cylinders. With the filter screen plate above sealing the top of the multiple storage cylinders, the two push-pull boxes are pushed back into the first and second purification boxes, which can quickly replace the solid adsorbent, thereby reducing the losses caused by device downtime. By pressurizing the detection chamber of the sealing rubber, the sealing status at the push-pull box is determined by checking the pressure change in the detection chamber.
Owner:HUBEI GEHUA ZHONGJI HYDROGEN ENERGY CO LTD

Amine absorbent with oxidative degradation resistance function and preparation method thereof

The invention relates to an amine absorbent with an oxidative degradation resistance function and a preparation method thereof, the amine absorbent comprises an AEA absorbent and an antioxidant degradation agent, and the antioxidant degradation agent accounts for 0.1% of the AEA absorbent by mass; the AEEA absorbent is prepared from AEEA and water; the antioxidant degradation agent is one of ascorbic acid, bisphenol A, EDTA-2Na (Ethylene Diamine Tetraacetic Acid) and diamylamine; or the antioxidant degradation agent is a mixture of chitosan and thymol. The preparation method comprises the following steps: uniformly mixing the AEEA and the water according to the ratio to obtain a 30wt% AEEA aqueous solution as an AEEA absorbent, and preparing an antioxidant degradation inhibitor; and finally, adding the antioxidant degradation inhibitor into the AEEA absorbent according to the formula ratio. The method is simple, the prepared amine absorbent can have an oxidative degradation resisting function, the degradation rate of the amine absorbent can be effectively reduced, the service life of the amine absorbent can be prolonged, and the capture cost of CO2 can be reduced.
Owner:CHINA UNIV OF MINING & TECH

Device for recovering gallium element from sodium aluminate solution

A device for recycling gallium from a sodium aluminate solution comprises a vertically-extending filling cylinder, a first four-way valve, a second four-way valve, a neutralizing tank, a precipitation tank and a dissolving tank, the filling cylinder is filled with a plurality of chelating resin particles, a first connector of the first four-way valve is connected to a base and communicated with the filling cylinder, a first connector of the second four-way valve is connected to a top cover, and a second connector of the second four-way valve is connected to a bottom cover and communicated with the top cover. A fourth connector of the second four-way valve supplies materials to the neutralizing tank through a first pipeline, a first liquid inlet is formed in the top of the neutralizing tank and used for being connected with an alkali liquor source, the neutralizing tank supplies materials to the precipitation tank through a second pipeline, and a second liquid inlet is formed in the top of the precipitation tank and used for being connected with an alkali liquor source. The precipitation tank supplies materials to the dissolving tank through a third pipeline, and a third liquid inlet is formed in the top of the dissolving tank and used for being connected with an alkali liquor source. The device is simple in structure and convenient to operate, the gallium element can be recycled at low cost by utilizing a Bayer process matching device, and the utilization value of bauxite is effectively improved.
Owner:CHONGQING JIULONG WANBO NEW MATERIAL TECH CO LTD

Evaporative fuel treatment device

A vaporized fuel processing device is provided, which comprises a main adsorption chamber and a sub-adsorption chamber. The sub-adsorption chamber comprises a first adsorption layer, a second adsorption layer, and a high desorption layer. The second adsorption layer is located closer to the atmosphere port than the first adsorption layer, and the fuel vapor adsorption performance of the second adsorption layer is lower than that of the first adsorption layer. The high desorption layer is located closer to the main adsorption chamber than the first adsorption layer, and the fuel vapor desorption performance of the high desorption layer is better than that of the first adsorption layer and the second adsorption layer.
Owner:FUTABA IND CO LTD

Processing high concentration cyclohexane oxidation off-gas systems and methods

The application discloses a system and method for treating high-concentration cyclohexane oxidation tail gas. The system comprises an adsorption / desorption module and an absorption / desorption module, and can directly treat high-concentration cyclohexane oxidation tail gas while meeting the gas emission requirements. The system has the advantages of short overall process, high cyclohexane recovery rate, reasonable energy utilization, low energy consumption and the like.
Owner:TSINGHUA UNIVERSITY +3

A method for preparing an antibiotic selective adsorbent

The application discloses a preparation method of an antibiotic selective adsorbent, first, C-BN nanosheet balls are prepared by a simple catalytic thermal evaporation method; second, the C-BN nanosheet balls are used as a main body to limit and load magnetic Fe3O4 nanoparticles; and then mesoporous SiO2 and imprinted polymers are coated on the surface of the C-BN nanosheet balls in sequence, and the tetracycline antibiotic selective adsorbent is obtained after template molecules are eluted. The tetracycline antibiotic selective composite adsorbent with high adsorption capacity is prepared, the high specific surface area of the carrier material and the enrichment antibiotic capacity of the radial structure and the selectivity of the surface molecular imprinting material are fully utilized, the selective adsorption of specific antibiotics in a complex solution is effectively realized, and the adsorption efficiency is effectively improved. The carbon-doped BN and the limited loading magnetic particles enhance the adsorption capacity, and the adsorbent can be quickly recovered and separated under an external magnetic field. Meanwhile, the SiO2 layer and the imprinted polymers enable the antibiotics to be quickly desorbed, and the cycle number is more, so that the antibiotic selective adsorbent has application prospects in the fields of sewage treatment and food antibiotic detection.
Owner:XIAN UNIV OF TECH

A catalytic diesel treatment process and treatment system

The present invention discloses a catalytic diesel processing process and a processing system, wherein the processing process includes the following contents: (1) catalytic diesel is separated to obtain a first fraction, a second fraction and a third fraction; (2) the third fraction enters a first fixed bed hydrogenation reaction zone, and a first stream is obtained after reaction; (3) the second fraction and the first stream enter an ebullating bed hydrogenation reaction zone, and a second stream is obtained after reaction; (4) the first fraction and the second stream enter a second fixed bed hydrogenation reaction zone, and the reaction products are separated to obtain light naphtha, heavy naphtha and hydrogenated diesel. A processing system for realizing the above process is also provided. The process solves the problems of high hydrogen consumption, difficult control of the reaction process, low quality and yield of aromatic products in the processing of catalytic diesel, and realizes the maximum production of the target product naphtha.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A self-powered flexible humidity sensor and its preparation method and application

The present invention provides a self-powered flexible humidity sensor and a preparation method and application thereof, belonging to the field of sensors. The present invention provides a self-powered flexible humidity sensor, comprising a flexible substrate, a bottom electrode, a porous composite functional layer and a top electrode stacked in sequence, wherein the porous composite functional layer comprises polyvinyl alcohol (PVA), potassium hydroxide (KOH) and graphene oxide (GO). The present invention utilizes PVA and GO to absorb water and ionize hydrogen ions, and utilizes the migration of hydrogen ions to generate voltage to achieve rapid adsorption and desorption of water molecules, thereby achieving self-powered humidity sensing. The present invention converts moisture information in the environment into electrical energy and realizes monitoring of moisture information, effectively reduces power consumption and simplifies the sensing circuit, and provides a direction for the portable, miniature and integrated development of sensors, that is, the sensor prepared by the present invention can work without external power supply, and the generated voltage can also be used by external circuits, saving energy and protecting the environment.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Waste gas treatment device for nylon waste granulation

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for nylon waste granulation, which comprises a gas heat exchanger, a cyclone separator, a treatment box, a combustion box and a matched pipeline system. Gas subjected to back flushing desorption is treated by a pipeline heater and a catalytic assembly and then enters a combustion box to be subjected to high-temperature decomposition, a jacket heating system is arranged outside the combustion box, and high temperature is maintained through heat conduction oil circulation. And combusted gas is collected after being cooled by the gas-liquid heat exchanger. Through the arrangement of the catalytic pipeline and the transfer bottle which are connected in parallel, continuous operation of the device is guaranteed, waste heat of part of the device is recycled through the gas heat exchanger and the gas-liquid heat exchanger, the solar panel and the storage battery pack are additionally arranged in the device to supply heat to part of the device, and energy consumption of the device in the using process is reduced.
Owner:JIUQUAN JINGQIANG NEW MATERIALS CO LTD

Preparation method and application of cerium-cobalt composite oxide electrocatalyst

The invention relates to a preparation method of a cerium-cobalt composite oxide electrocatalyst, which comprises the following steps: soluble cerium salt, soluble cobalt salt and urea are added into water and stirred to form a mixed solution, the cerium ion concentration is 4-95 mmol / L, the cobalt ion concentration is 40-60 mmol / L, and the molar ratio of the total metal amount of the soluble cobalt salt and the soluble cerium salt to the urea is (0.01-0.5): 1; adding the mixed solution and a carbon fiber substrate into a closed container, keeping at 100-160 DEG C for 2-24 hours, and cooling to room temperature to obtain a carbon fiber substrate loaded with a catalyst precursor; the carbon fiber substrate loaded with the catalyst precursor is dried and calcined, the calcination temperature is 300-500 DEG C, the calcination time is 1-4 h, the heating rate is 1-5 DEG C / min, and the cerium-cobalt composite oxide electrocatalyst is obtained. The synthesis method is simple, low in cost and suitable for large-scale production.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Temperature swing adsorption type device for capturing carbon dioxide in flue gas

The utility model provides a temperature swing adsorption type device for capturing carbon dioxide in flue gas, which overcomes the defects of long adsorption time, high equipment cost and low carbon dioxide release efficiency of the existing temperature swing adsorption process equipment, and improves the operation efficiency of the capturing device by adding a cold and heat adjusting air inlet unit. And the carbon dioxide desorption efficiency is improved by using the pressurizing unit, so that the carbon capture efficiency is improved, and the capture cost is reduced.
Owner:JINAN CHENGYAN GUONENG ZHONGCHENG ENVIRONMENTAL PROTECTION TECH CO LTD

A highly efficient organic waste gas recovery device and process

The present invention provides an organic waste gas recovery device and process, belonging to the technical field of organic waste gas treatment. It includes a condensation system, a membrane separation system, an adsorption system, and a vacuum system, wherein the vacuum system includes a vacuum pump 1 and a vacuum pump 2 that operate independently, wherein the inlet and outlet of the vacuum pump 1 are respectively connected to the membrane separation system and the condensation system, and the organic gas separated in the membrane separation system is circulated back to the condensation system by the vacuum pump 1; the inlet and outlet of the vacuum pump 2 are respectively connected to the adsorption system and the condensation system; the organic gas desorbed in the adsorption system is circulated back to the condensation system by the vacuum pump 2. In the present invention, the membrane separation system and the adsorption system are respectively separated by independent vacuum pumps to separate organic gas and air and desorb organic matter. In this way, the two systems do not interfere with each other, and the intermittent vacuum operation of the adsorption system will not affect the continuous vacuum operation of the membrane separation system, which effectively ensures the working stability of the membrane separation system.
Owner:ZHEJIANG TONGSHAN ENVIRONMENTAL PROTECTION TECH CO LTD

Adsorptive material, method for preparing same, and use thereof

ActiveCN117358201BImprove mechanical propertiesDoes not affect adsorptionActivated carbonFiber
The application provides an adsorbing material and a preparation method and application thereof. The adsorbing material comprises activated carbon and an additive material; the specific heat capacity and the thermal conductivity of the additive material are not lower than those of the activated carbon; the additive material comprises one-dimensional fiber material and / or two-dimensional layered material; and the mass ratio of the activated carbon to the additive material is 100:(0.1-10). The additive material in the adsorbing material provided by the application can form a thermal conduction path and a uniform heat storage / heat release network, and the activated carbon is surrounded in the network, so that the desorption performance to oil and gas is enhanced, the residual amount is reduced, and the mechanical performance of the material is improved without affecting the adsorption performance of the activated carbon.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES +1

Organic amine absorbent regeneration catalyst for carbon capture and preparation method thereof

The invention provides an organic amine absorbent regeneration catalyst for carbon capture and a preparation method thereof. The organic amine absorbent regeneration catalyst comprises a carbon layer carrier and metal elements and nitrogen elements doped on the surface of the carbon layer carrier, the carbon layer carrier has a highly graphitized structure, and the ID / IG ratio of the Raman spectrum is less than 2; the metal elements are in an atomic-scale dispersed state on the surface of the carbon layer carrier; the metal element and the nitrogen element are coordinated and jointly loaded on the surface of the carbon layer carrier. The metal active substance in the catalyst is in the carbon-nitrogen protective layer, active sites are dispersed, and the stable protective layer is arranged around the active sites, so that the catalyst has higher reaction activity and stability; the catalyst has a highly graphitized structure, so that the stability and durability of the catalyst can be improved; the catalyst has a hierarchical porous structure, has a high specific surface area, contributes to reactant diffusion, and improves the reaction activity of the catalyst; strong acid and strong alkali etching can be endured, and the durability of the catalyst is improved; in addition, the catalyst can greatly improve the CO2 desorption performance of the organic amine absorbent.
Owner:CHINA HUADIAN ENG CO LTD +1

An apparatus and method for treating oily sludge by supercritical water thermal desorption

This invention discloses a supersubcritical hydrothermal desorption device and method for treating oily sludge. The device includes a main body, with its top and bottom sealed by an upper and lower end cover, respectively. Inside is a desorption chamber equipped with a guide plate. Its side walls are provided with a primary preheating water inlet, a desorption product outlet, a slag discharge port, and a temperature detection device, all communicating with the desorption chamber. An oily sludge inlet is located on the upper end cover, and a secondary preheating water inlet is located on the lower end cover. This device is compact, easy to operate and maintain, and can effectively achieve the desorption of oily sludge from supersubcritical water flowing against the temperature gradient, as well as the desorption of petroleum components as the temperature gradually increases. This achieves the goals of resource recovery, harmless treatment, and volume reduction of the oily sludge.
Owner:XI AN JIAOTONG UNIV

A waste gas treatment device for PCB photosensitive dry film production

ActiveCN224585628UAvoid reaching fullness quicklyavoid state
This disclosure provides a waste gas treatment device for PCB photosensitive dry film production, belonging to the technical field of waste gas treatment devices. It includes: an inner cylinder with an outer cylinder rotatably fitted around its outer periphery; a plurality of sieve holes are evenly spaced on the outer peripheral wall of the inner cylinder; two sealing rings are slidably fitted onto the outer peripheral wall via an annular groove, symmetrically positioned at both ends of the sieve holes; and the outer peripheral wall of the sealing rings contacts the inner wall of the outer cylinder. An air inlet mechanism is located at one end of the outer cylinder and is used to introduce waste gas into the inner cylinder. During the adsorption of organic waste gas by activated carbon, the inner cylinder rotates within the outer cylinder, continuously agitating the activated carbon particles within it. This prevents some activated carbon from constantly contacting a high concentration of organic waste gas, thus avoiding rapid saturation of some activated carbon, reducing the desorption frequency of the activated carbon, and improving the waste gas treatment efficiency of the device.
Owner:JIANGXI LIZHENG MATERIAL CO LTD

Carbon dioxide capture system based on calcium-based particulate material and method for controlling the same

The application provides a calcium-based particulate material-based carbon dioxide capturing system and a control method thereof, and the system comprises a reactor, a decomposition bin, a conveying branch and an input branch; the input branch inputs raw flue gas to the reactor; the conveying branch conveys calcium-based particulate material to the reactor by using heated flue gas; the reactor controls the internal temperature by selecting the input raw flue gas of the input branch, so as to control the progress of the adsorption reaction; and the decomposition bin controls the movement of the supporting plate by using mechanical action and air pressure action, so as to guide the flow of the material and control the progress of the desorption reaction. The application constructs a complete and ingenious heat circulation process and material circulation process, the circulation processes are connected with each other, the structure design is ingenious and practical, the energy utilization efficiency is improved, the energy consumption is reduced, the equipment maintenance cost and the energy procurement cost are reduced while the efficient adsorption and desorption of carbon dioxide are ensured.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

A flow varying purifying device for a hydrogen gas purifying adsorption tower

The application discloses a variable-flow type purification device of a hydrogen purification adsorption tower and belongs to the technical field of hydrogen purification. The variable-flow type purification device of the hydrogen purification adsorption tower comprises a tower body, vacuum extraction pipes and gas inlet pipes are connected to the lower outer side of the tower body, an exhaust pipe is connected to the top of the tower body, first and second positioning screens are fixedly arranged on the inner side of the tower body, a fixing seat is fixedly installed on the upper inner side of the tower body, an elastic lifting connection is formed between the upper part of the fixing seat and a movable seat, a sealing plate is also fixedly installed on the upper inner side of the tower body, a rubber cylinder body for adjusting air pressure is fixedly connected between the movable seat and the sealing plate, and a flushing pipe is connected to the outer side of the upper part of the tower body. The variable-flow type purification device of the hydrogen purification adsorption tower can realize real-time regulation and control of the gas flow rate according to the purity of hydrogen purification, ensures the purification efficiency and the purity, and can realize efficient desorption in a combined manner, so that effective adsorption and purification of the adsorption tower are ensured.
Owner:TIANJIN XINYUAN HYDROGEN ENERGY CO LTD

A deacidification device and method for filtering C4 liquefied gas

The present invention relates to the technical field of zeolite adsorbers, and discloses a deacidification device and method for filtering C4 liquefied gas, comprising an adsorber body and a filter, a frame, an air duct, a heater and an air inlet and outlet pipe installed in the adsorber body, a rotating wheel frame is rotatably connected to the middle position of the frame, a motor is fixedly connected to the lower end of one side of the frame, the output end of the motor is connected to the rotating wheel frame through a first transmission belt, a fixed block is fixedly connected to the inner side of the rotating wheel frame, a plurality of molecular sieve modules slidably connected to the fixed block are provided inside the rotating wheel frame, and the interior of the molecular sieve module is filled with molecular sieve particles. This kind of deacidification device and method for filtering C4 liquefied gas enables each molecular sieve to have double desorption time, improves the desorption effect, and makes the molecular sieve module purer, so that the effect of the molecular sieve module during adsorption will also be better, thereby improving the adsorption effect of the adsorber body.
Owner:振华新材料(东营)有限公司

Biological polypeptide detection method

The invention discloses a biological polypeptide detection method, which belongs to the technical field of biological detection, and comprises the following steps: taking muscular tissues of a sample, and mashing to obtain a homogeneous sample for later use; adding water into the homogeneous sample, carrying out crude extraction, adding adsorption resin, carrying out static adsorption, filtering and collecting the adsorption resin, carrying out desorption treatment by adopting ethanol, and filtering out the adsorption resin to obtain filtrate as a sample solution for later use; detecting the content of carnosine and goose carnosine in the sample solution by adopting a UHPLC-MS / MS combined method; wherein the adsorption resin is polystyrene-divinylbenzene type copolymer macroporous adsorption resin or modified macroporous adsorption resin I, and the modified macroporous adsorption resin I is obtained by carrying out modification treatment on a polystyrene-divinylbenzene type copolymer by adopting (-)-catechin and kaempferol-3-O-sophorobiose-7-O-glucoside. The method is easy to operate, high in accuracy and good in reproducibility, and the extraction effect on carnosine and goose carnosine can be improved.
Owner:ZHOUSHAN INST FOR FOOD & DRUG CONTROL +1

Electrocatalytic hydrogen evolution catalyst as well as preparation method and application thereof

The invention discloses an electro-catalytic hydrogen evolution catalyst and a preparation method and application thereof, and relates to the technical field of electro-catalysis, the electro-catalytic hydrogen evolution catalyst is composed of a silylene carrier subjected to defect engineering treatment and monatomic metal loaded on a defect site of the silylene carrier; according to the invention, defects are introduced into the carrier to preferentially load monatomic metal, and the monatomic metal and the carrier cooperate to increase active sites and improve the utilization rate of atoms; by means of the combination, monatomic metal loading can be more stable and uniform, agglomeration is reduced, the adsorption and desorption capacity on reactants can be enhanced, and the catalytic performance is improved. The combination of non-existing technologies such as a laser-induced plasma auxiliary technology and a biological template-quantum dot guide technology is realized, and the bottleneck that the activity and stability of a traditional catalyst are insufficient can be broken through.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Hydroxysafflor yellow A as well as purification method and application thereof

The invention provides a hydroxysafflor yellow A as well as a purification method and application thereof, and relates to the technical field of extraction of plant active ingredients. According to the purification method, an ethanol aqueous solution containing citric acid is introduced as an eluent of a polyamide column, so that the desorption performance of the hydroxysafflor yellow A is remarkably improved, and the purity of the hydroxysafflor yellow A is improved. The hydroxysafflor yellow A purified by the method disclosed by the invention has relatively high purity. Compared with a traditional process, the method has the advantages that the separation efficiency and the purity of the purified hydroxysafflor yellow A are greatly improved, the requirements on equipment and environment are reduced, and the method is particularly suitable for large-scale industrial production.
Owner:YAAN THREE NINE PHARMA

Preparation method of boron-doped porous carbon-loaded potassium monatomic solid hydrogen storage material

The invention relates to a preparation method of a boron-doped porous carbon-loaded potassium monatomic solid hydrogen storage material, which comprises the following steps: dissolving boric acid in a polyethylene glycol solution, stirring at room temperature until the boric acid is completely dissolved, adding porous carbon, fully stirring, standing and soaking at room temperature, and drying in vacuum to obtain a boron-doped porous carbon primary product; placing the boron-doped porous carbon primary product in a tubular furnace, heating at 900 DEG C for 3 hours under the protection of N2 atmosphere, and naturally cooling to obtain a boron-doped porous carbon material; and dispersing potassium chloride and the boron-doped porous carbon material in deionized water to obtain a potassium chloride-boron-doped porous carbon precursor dispersion liquid, carrying out centrifugal treatment, and carrying out heat treatment in a vacuum oven to obtain the boron-doped porous carbon-loaded potassium monatomic solid hydrogen storage material. The solid hydrogen storage material has the advantages that the prepared solid hydrogen storage material shows excellent hydrogen adsorption and desorption performance, when the hydrogen pressure is 70 Pa, the hydrogen adsorption capacity reaches 4.71 wt%, and the hydrogen storage density is greatly improved.
Owner:XIAN TECH UNIV

Negative electrode material for lithium ion button battery and preparation method of negative electrode material

The invention discloses a negative electrode material for a lithium ion button battery and a preparation method of the negative electrode material, and belongs to the technical field of battery materials. The lithium battery negative electrode material prepared by compounding the Mn-Ce modified biochar material and the chitosan-phytic acid modified nano silicon powder according to a specific ratio can effectively relieve the volume expansion problem of the silicon material in the charge-discharge process, and can increase more ion migration channels and enhance electron conduction paths at the same time; the composite material has excellent electrochemical performance, improves the capacity retention ratio and cycling stability of the lithium ion battery, and has a good market application prospect.
Owner:SHANDONG HUATAI NEW ENERGY BATTERY CO LTD

Ternary mixed amine composition and application thereof, ternary mixed amine absorption liquid and preparation method and application thereof

The invention belongs to the technical field of carbon dioxide absorption, and particularly relates to a ternary mixed amine composition and application thereof, a ternary mixed amine absorption liquid and a preparation method and application thereof. The invention provides a ternary mixed amine composition. The ternary mixed amine composition is prepared from ethanolamine, 2-amino-2-methyl-1-propanol and piperazine, the molar ratio of the ethanolamine to the 2-amino-2-methyl-1-propanol to the piperazine is 3 to (0.3 to 0.8) to (1.2 to 1.8). In order to improve the capture and desorption efficiency of carbon dioxide in ship tail gas, ethanolamine, 2-amino-2-methyl-1-propanol and piperazine triamine are compounded, and meanwhile, the mass ratio of the three amines is optimized, so that the steric effect of an absorption solution formed by the ternary mixed amine composition can be effectively improved, the absorption efficiency of carbon dioxide is improved, and the absorption efficiency of carbon dioxide is improved. And moreover, the desorption rate and efficiency are improved, the carbon dioxide is easy to regenerate, and meanwhile, the function of reducing the desorption energy consumption can be realized.
Owner:南通远洋船舶配套有限公司 +1

Blowback system for polycrystalline silicon tail gas adsorption device and control method of blowback system

The invention relates to a back flushing system of a polycrystalline silicon tail gas adsorption device. The back flushing system comprises a hydrogen pipeline; the output ends of the nitrogen pipeline and the hydrogen pipeline are connected; the inlet end of the heating assembly is connected with the output ends of the nitrogen pipeline and the hydrogen pipeline; the outlet end of the adsorption assembly is connected to the outlet end of the heating assembly; the inlet end of the tail gas recovery system is connected with the outlet end of the adsorption assembly. According to the invention, by adding the heating assembly in the system, the temperature of the blowback gas can be increased, so that the adsorption and desorption capacities of the gas are enhanced, and impurities are more easily desorbed from the adsorption assembly.
Owner:XINJIANG EAST HOPE NEW ENERGY CO LTD

Resin cyclic adsorption device

The utility model relates to the technical field of environment-friendly treatment, and discloses a resin circulation adsorption device which comprises an adsorption tank body and a desorption piece, resin particles for adsorption treatment are placed in the adsorption tank body, the desorption piece is arranged on one side of the adsorption tank body and is communicated with the adsorption tank body, the adsorption tank body comprises a dispersion barrel, and the dispersion barrel is provided with a dispersion cavity. A dispersing part is arranged in the dispersing cylinder and is used for fully dispersing resin particles entering the dispersing cylinder; the resin particle desorption device effectively solves the problems that when resin is subjected to desorption treatment, because resin particles are stacked together, a desorption agent cannot be in full contact with each resin particle, and the resin particles cannot be subjected to full desorption treatment.
Owner:SHAOXING JIUXIN ENVIRONMENTAL PROTECTION CO LTD