173 results about "Carbon adsorption" patented technology

The invention discloses a fly ash-based geopolymer carbon sequestration adsorption material and a preparation method thereof, and belongs to the technical field of engineering materials. The material disclosed by the invention is modified by adding 13X zeolite with a specific particle size, and the carbon sequestration adsorption performance of the material is remarkably improved through an in-situ hydrothermal conversion process. The fly ash-based geopolymer material and the preparation method disclosed by the invention are simple and easy to implement, are easy to implement in industrial production, and can overcome the defects of low mineralization efficiency and unstable reaction products caused by direct reaction of solid waste with CO2 to generate a mineralized (carbonate) filling material at present. The geopolymer carbon sequestration adsorption material has a wide application prospect, provides a new method for synergistically solving the problems of carbon sequestration, solid waste disposal and waste underground space reutilization, and has important environmental protection, social and economic benefits.

The invention discloses a ferrite nanoparticle-loaded biochar adsorption material and a preparation method thereof, and the ferrite nanoparticle-loaded biochar adsorption material is prepared by the following steps: S1, sieving biochar, cleaning and drying to obtain pretreated biochar; s2, adding the pretreated biochar into a nitric acid solution, mixing, cleaning, filtering and drying to obtain a material A; s3, respectively dissolving a water-soluble ferric salt and a water-soluble sodium salt in water to obtain a ferric salt solution and a sodium salt solution, and mixing the ferric salt solution and the sodium salt solution to obtain a solution a; and S4, adding the material A into the solution a, mixing, cleaning, and drying to obtain the ferrite nanoparticle-loaded biochar adsorption material. By controlling the proportion of the components and the proper raw material ratio, the ferrite nanoparticle-loaded biochar adsorption material for the permeable reactive barrier, which is relatively strong in adsorption catalysis capability, can be prepared, and arsenic ions in pollutants can be efficiently adsorbed.

The invention belongs to the technical field of hydrometallurgy, and particularly relates to a pretreatment method for improving the leaching rate and the carbon adsorption rate of high-sulfur-arsenic gold ore. Comprising the following steps that the high-sulfur-arsenic gold ore is ground and then prepared into ore pulp; a green oxygen activating agent and hydrogen peroxide are sequentially added into the ore pulp, oxidation pretreatment is conducted on the high-sulfur-arsenic gold ore, ore pulp activating liquid is formed, and the green oxygen activating agent is a mixture of calcium oxide, sodium persulfate and soluble bivalent iron salt; and adding a gold leaching agent into the ore pulp activation solution, adjusting the pH value of the ore pulp to 9-12, carrying out stirring gold leaching treatment, filtering to obtain a leaching solution, and then adding activated carbon to adsorb and extract gold. According to the method, a stronger oxidation environment is provided, meanwhile, the residual concentration of arsenate radicals in the solution is effectively reduced, the leaching rate of gold and the adsorption rate of activated carbon are greatly increased, excellent oxidation performance and environment friendliness are shown, and a more sustainable high-sulfur-arsenic gold ore pretreatment process is provided.

The invention belongs to the field of CO2 adsorbent synthesis, and particularly relates to a CO2 adsorbent synthesis method and system for packaging MOFs based on a microfluidic technology. An MOFs precursor solution is packaged in a photocuring modified PDMS polymer shell by adopting a micro-fluidic technology to be directly subjected to in-situ thermal reaction to synthesize an MOF material instead of traditional water / solvent thermal synthesis of MOFs, a closed micro-scale reaction environment is provided for synthesis of MOFs by a micron-sized capsule prepared by adopting the micro-fluidic technology, the synthesis efficiency of the MOFs is improved, the internal MOFs are protected, and the preparation method is simple and convenient to operate. The MOF-based carbon adsorbent has the advantages that the MOF-based carbon adsorbent is added into the MOF-based carbon adsorbent, so that the influence of an external complex water vapor environment on the MOFs is relieved, the problems of poor operation stability, high stacking air resistance, large forming performance loss and the like of the MOF-based carbon adsorbent are solved, high-performance, low-energy-consumption and modular operation CO2 capture is realized, and the requirement on the carbon adsorbent in a zero-carbon emission process is met.

The invention belongs to the technical field of fly ash treatment, and particularly relates to a treatment process for comprehensive recycling of fly ash, which specifically comprises the following steps: S1, collecting, accurately metering, washing and extracting fly ash, and respectively feeding generated mother liquor and filter residues into a concentration unit and a low-temperature thermal decomposition unit for treatment; s2, adding a pH regulator and a heavy supplement agent into the mother liquor in the concentration unit, and filtering to remove metal sludge to obtain calcium chloride mother liquor; evaporating the calcium chloride mother liquor to obtain a calcium chloride solution and sodium potassium waste salt; and S3, heating the filter residue to a pyrolysis desorption temperature for dechlorination decomposition, cooling the desorbed fly ash for resource recovery, carrying out cloth bag dust removal on the flue gas generated by desorption, carrying out secondary combustion decomposition, carrying out desulfurization, activated carbon adsorption and denitration treatment in sequence, and discharging the flue gas. The problems of low fly ash treatment efficiency and low resource utilization rate in the existing fly ash treatment process are solved, various products generated in the fly ash treatment process can be subjected to resource utilization, and the resource utilization rate of fly ash treatment is improved.

The invention relates to the field of filtering materials, in particular to a filtering material for removing silicon and aluminum from ionic membrane caustic soda brine and a preparation method of the filtering material. The filtering material for removing silicon and aluminum from ionic membrane caustic soda brine comprises a hierarchical porous structure carbon adsorption material, the hierarchical porous structure carbon adsorption material comprises a plurality of large holes with the diameter of 800-1000 nm and a plurality of small holes with the diameter of 50-100 nm, and each small hole is located in the hole wall of the corresponding large hole. According to the invention, polymethyl methacrylate microspheres are used as macroporous templates, silicon dioxide nanoparticles are used as microporous templates, and gaps of the templates are filled with a carbon precursor through impregnation. A three-dimensional communicated macropore and micropore hierarchical structure is constructed by a double-template method, macropores are used as channels for rapid diffusion of silica-alumina colloid, and micropores are distributed on the wall surfaces of the macropores to provide a high specific surface area, so that the density of active sites is remarkably increased; the physical screening effect can selectively intercept target impurities, meanwhile, competitive ions such as calcium and magnesium ions are prevented from entering pore channels, and the dynamic adsorption capacity is remarkably improved compared with traditional activated carbon.

The invention discloses an S / N co-doped microporous carbon adsorbent as well as a preparation method and application thereof, and belongs to the technical field of adsorbents. According to the method, firstly, melamine is utilized to enable waste polyvinyl chloride to be subjected to dechlorination reaction at room temperature to generate a microporous carbon material precursor, then decomposition and structural recombination of the microporous carbon material precursor are promoted through high-temperature pyrolysis, the generated local stress further increases the number of carbon defects, the carbon defects are in a high-energy state at high temperature, and the carbon defects are in a high-energy state at high temperature. And gas escape or further chemical reaction is easy to occur. Meanwhile, the activating agent is decomposed at high temperature and releases a large amount of small molecule gas to promote generation of carbon skeleton pores, and non-carbonizable PVC is converted into a high-value nitrogen-doped carbon material. And finally mixing thiourea, modifying the microporous carbon material by introducing a sulfur element, and further optimizing the polarity of the carbon surface by heteroatom doping, so that the CO2 adsorption performance is remarkably improved, and the sulfur-functionalized porous carbon adsorbent with high microporosity is constructed.

The invention provides a flotation pretreatment reagent system and a method for treating gold-bearing waste soot and recycling gold through the flotation pretreatment reagent system, and belongs to the technical field of hydrometallurgy. According to the invention, a multi-agent synergistic agent system is designed, a gold recovery system of'catalytic oxidation-bridging anchoring-hydrophobic flotation 'is constructed, and strategy transformation from passive inhibition of carbon adsorption to active separation of a carbon carrier is successfully realized. Compared with a traditional method which only tries to passivate the adsorption activity of carbon, the method has the advantages that gold-robbing carbon interfering with gold recovery is converted into a flotation carrier easy to separate through accurate reagent matching, and the problem that carbonaceous interferes with cyaniding gold extraction is fundamentally solved. The modified carbon agglomerates are subjected to efficient flotation separation due to the excellent hydrophobic characteristic, and the gold is enriched in the tailings due to the fact that the gold is not hydrophobized. According to the method, the gold recovery rate of follow-up cyanidation leaching is remarkably increased, the agent consumption is greatly reduced, and the important technical value of achieving technological process innovation through molecular-level collaborative design is shown.

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter and may exhibit a carbon dioxide capacity of at least 11.0 weight percent at 30° C. and 760 mmHg. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.

The present invention discloses a fly ash-based geopolymer carbon sequestration and adsorption material and a preparation method thereof, belonging to the technical field of engineering materials. The material of the present invention is modified by adding 13X zeolite with a specific particle size, and its carbon sequestration and adsorption performance is significantly improved through an in-situ hydrothermal conversion process. The fly ash-based geopolymer material and the preparation method disclosed by the present invention are simple and easy to implement, and are easy to be implemented in industrial production, and can overcome the disadvantages of the current direct reaction of solid waste with CO2 to generate mineralized (carbonate) filling materials, low mineralization efficiency and unstable reaction products. The geopolymer carbon sequestration and adsorption material of the present invention has a wide application prospect, provides a new method for synergistically solving carbon sequestration, solid waste disposal, and reuse of abandoned underground spaces, and has important environmental protection, social and economic benefits.

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.

The invention relates to the technical field of gasification slag drying, in particular to a gasification slag recovery system based on intelligent drying, which comprises a crushing module, a drying module, a flotation module, a data acquisition module and a control module. The crushing module crushes gasified slag to a preset particle size, the drying module heats and dries the crushed particles, and the flotation module realizes fine carbon separation through a microbubble mixing assembly and the like. The data acquisition module is used for acquiring the specific surface area of the dried gasified slag, the particle agglomeration diameter in the flotation liquid and the bubble uniformity. And the control module identifies an agglomeration reason according to data acquired by the data acquisition module. The method solves the problem that in the prior art, identification of gasification slag particulate matter agglomeration reasons is single, the drying temperature and the smashing rate of a system are adjusted through bubble uniformity, interference of particulate matter agglomeration in flotation liquid on fine carbon adsorption through microbubbles is reduced, the fine carbon separation efficiency and precision are improved, and the quality of fine carbon is improved. Therefore, the recycling rate of useful components in the gasified slag is improved.

The invention discloses a carbon sink statistical method and system based on nori cultivation carbon sink potential monitoring and evaluation. The method comprises the steps that environmental parameter data are collected in real time through a multi-parameter sensor array deployed in a cultivation area; constructing a carbon flux evaluation model by combining nori culture biomass; simulating a migration and transformation process of carbon elements in'frond-water-sediment 'through a three-dimensional carbon transfer path tracking algorithm to obtain a three-dimensional carbon flux dynamic matrix; constructing a carbon sink space-time distribution model, and correcting the carbon sink space-time distribution in combination with the environmental data of the laver culture area; carbon element accumulation curves of different time dimensions are extracted, and a carbon sink potential evaluation function is constructed in combination with the growth cycle of the laver; and establishing a grading judgment system, and constructing a three-level carbon sink capacity grade and a corresponding environmental parameter threshold combination thereof. The method has the advantages that the carbon adsorption potential of the laver culture area is accurately evaluated through real-time environment data acquisition, carbon flux evaluation, three-dimensional path simulation and spatial-temporal distribution correction.

The invention discloses a method for preparing a carbon adsorption material by modifying and accelerating carbonization of industrial solid waste, which belongs to the technical field of metallurgy and comprises the following steps: modifying an additive, preparing a carbonization precursor by a mixed compression molding method and preparing the carbon adsorption material by carbonization maintenance. According to the modification method, smelting waste heat can be fully utilized, a small amount of additive modifier is added, the cooling rate is controlled, modified solid waste powder is obtained, the modified solid waste powder and water are mixed, pressed and formed to obtain a carbonized precursor, then industrial waste CO2 gas is utilized, the carbon adsorption material is obtained through a carbonization curing process, CO2 is permanently sealed and stored, and the carbon adsorption effect is good. And the brick has extremely high compressive strength performance, can be applied to large-scale production of building materials such as sidewalk bricks, curbs and side slope building blocks, and has remarkable economic and ecological benefits.

The invention belongs to the technical field of water treatment water purifying agents, and particularly relates to a method for preparing a polyaluminum chloride water purifying agent from aluminum mud. The preparation method comprises the following steps: carrying out ball milling, washing and acidolysis on aluminum mud to prepare an aluminum-containing solution, adding calcium aluminate to adjust the aluminum content of the solution, curing to prepare polyaluminum chloride, adding cationic polyacrylamide and 2-ethylhexyl acrylate, and polymerizing to prepare the polyaluminum chloride flocculant, so that macromolecular clusters are more easily formed, and the water purification flocculation effect is improved; the modified carbon adsorption material prepared by loading magnesium-aluminum hydrotalcite on bamboo fibers and carrying out low-temperature calcination and carbonization has excellent adsorption capacity; the oil adsorption aid prepared by modifying cotton fibers with catechol and then attaching a silica sol hydrophobic coating has excellent selective oil adsorption capacity; the polyaluminum chloride water purifying agent obtained by compounding the polyaluminum chloride flocculating agent with aluminum sulfate, a modified carbon adsorption material and an oil adsorption auxiliary agent according to a certain proportion has excellent adsorption sedimentation and temperature difference adaptability, and aluminum resources can be recycled.

The utility model relates to a vehicle-mounted activated carbon filter element and assembly for air purification and an air purifier. The activated carbon filter element comprises a main body and through holes, the through holes are formed in the main body and are arranged in an array mode, and the through holes are straight through holes; the main body is made of an activated carbon material, and the activated carbon filter element is integrally formed. The filter element assembly comprises a shell, a clamp and an activated carbon filter element, and the activated carbon filter element is arranged in the shell; the activated carbon filter element assembly is used for fixing the filter element assembly to an air outlet of the vehicle-mounted air conditioner, and the activated carbon filter element is adopted. Compared with the prior art, the carbon base material is adopted, so that the carbon adsorption material has the characteristics of small volume, large adsorption capacity and small resistance. In addition, the carbon base material can thoroughly adsorb and remove harmful gas, and compared with odor covering of aromatherapy, the activated carbon filter element can thoroughly adsorb TVOC and odor, and secondary pollution cannot be caused.

The invention provides aliphatic acyl chloride and a purification method thereof. The purification method comprises the following steps: S1, introducing a crude product mixed solution which is obtained by reacting aliphatic carboxylic acid with phosgene and has the temperature of 50-100 DEG C into a gas driving tower at the flow rate of Q1, carrying out first purification, and extracting a first purified solution from the tower bottom of the gas driving tower; s2, the first purified liquid is introduced into a light component removal tower at the flow rate of Q2 for secondary purification, light component impurities are extracted from the tower top, and a second purified liquid is extracted from the tower bottom at the flow rate of Q3; s3, introducing the second purified liquid into a rectifying tower at the flow rate of Q4 for third purification, extracting a third purified liquid at the flow rate of Q5 from the tower top, and extracting heavy component impurities from the tower bottom; and S4, carrying out carbon adsorption treatment on the third purified liquid to obtain aliphatic acyl chloride. According to the method, residual phosgene, hydrogen chloride, amide compounds and light and heavy component impurities in the aliphatic acyl chloride crude product are effectively removed, and the purity of the aliphatic acyl chloride product is remarkably improved.

The invention relates to a gold oxide ore carbon slurry cyaniding smelting extraction method which comprises the following steps: 1) pretreating ore pulp: adding lime milk into gold oxide ore powder, adjusting the pH value to be greater than 10.5 to obtain ore pulp, then adding a pretreating agent, and fully and uniformly mixing to obtain pretreated ore pulp; (2) synchronous cyaniding leaching and adsorption are conducted, specifically, the pretreated ore pulp is subjected to synchronous leaching and adsorption, in the process, the concentration of free cyanogen is controlled to be 0.04%-0.06%, the PH value is controlled to be larger than 10.5, the concentration of a carbon adsorbent is controlled to be 18-22 g / L, and a gold loading material is obtained; the gold loading material is desorbed till the gold concentration in a desorption solution is smaller than or equal to 0.2 mg / L, desorption is stopped, a pregnant solution is obtained and then electrolyzed, when the gold concentration is smaller than or equal to 0.2 mg / L, electrolysis is stopped, scraping is conducted, and gold mud is obtained, and (4) smelting and aftertreatment are conducted, the gold mud is smelted and subjected to aftertreatment, and gold is obtained.The process has the advantages of being small in cyanide consumption and the like.

The utility model belongs to the field of building materials and environmental protection, and particularly relates to an enhanced low-carbon concrete carbon capture device. The device comprises a carbon capture unit, a gas conveying unit and a control unit, wherein the carbon capture unit comprises a capture chamber and a partition plate, the partition plate is provided with adsorption holes, and the adsorption holes are filled with a carbon adsorption material; the gas conveying unit comprises a gas inlet pipeline, a gas outlet pipeline and a power pump; the air inlet pipeline is connected with the inlet end of the capturing chamber, the air outlet pipeline is connected with the outlet end of the capturing chamber, and the power pump is used for conveying air; the control unit comprises a sensor and a controller; the sensor is used for monitoring the gas concentration and temperature in the capturing chamber, and the controller is used for adjusting the running state of the power pump. The carbon capture efficiency is improved, and the utilization rate of an adsorption material is remarkably improved; and the operation cost is reduced, and the use and maintenance costs of alkaline substances are reduced.

The utility model relates to the technical field of attapulgite, in particular to an attapulgite carbon-adding adsorption forming device which comprises a heating tank, a tank cover is arranged at the top of the heating tank, the tank cover is connected with the heating tank through a plurality of fixing buckles, one side of the top of the tank cover penetrates through and is fixedly connected with a feeding groove, and the other side of the top of the tank cover is fixedly connected with the feeding groove. A driving motor is fixedly connected to the center of the top of the tank cover, a transmission shaft is fixedly connected to the output end of the driving motor, a pair of connecting shaft discs are arranged below the transmission shaft, a supporting shaft is fixedly connected between the two connecting shaft discs, and the connecting shaft disc located on the upper portion is fixedly connected with the bottom end of the transmission shaft; a plurality of stirring rods are arranged on the outer side of the connecting shaft disc at equal intervals, and the stirring rods are flexible in structure, so that the stirring rods can be detached and replaced after being damaged, the subsequent mixing effect cannot be affected, and convenience is provided for later maintenance work.

The utility model relates to the technical field of adsorption components, in particular to a granular carbon adsorption structure for high-purity spinning oil, which comprises an upper box body and a lower box body, the upper box body is movably connected with the lower box body, a first cavity for circulating the high-purity spinning oil is arranged in the upper box body, and a second cavity for circulating the high-purity spinning oil is arranged in the lower box body. A first cavity is formed in the upper box body, a second cavity communicated with the first cavity is formed in the lower box body, a first movable box movably connected with the upper box body is arranged in the upper box body, and at least one adsorption box capable of adsorbing impurities of the high-purity spinning oil in the first cavity is arranged in the first movable box; a second movable box movably connected with the lower box body is arranged in the lower box body, and at least one drying box capable of drying moisture of the high-purity spinning oil in the second cavity is arranged in the second movable box.

The utility model discloses a flue gas carbon capture device, which belongs to the technical field of energy, and adopts the technical scheme that the flue gas carbon capture device comprises a gas inlet pipe, the right side of the gas inlet pipe is fixedly connected with a capture pipe, the right side of the capture pipe is fixedly connected with a gas outlet pipe, and the bottom of the capture pipe is fixedly connected with a recovery pipe; the inner sides of the catching pipe and the recycling pipe are movably connected with a catching and recycling mechanism, the inner side of the gas inlet pipe is movably connected with a pretreatment mechanism, traditional landing equipment can be abandoned, the flue gas treatment process is shortened, a pipeline is divided into the gas inlet pipe, the catching pipe and the gas outlet pipe, and the recycling pipe, a matched through groove, a supporting rotating rod and other structures are arranged at the bottom of the catching pipe; integration of smoke carbon capture and recovery is achieved, a honeycomb carbon adsorption plate directly completes smoke carbon adsorption in a capture pipe, after adsorption is saturated, a servo motor drives a supporting rotating rod to rotate, the supporting rotating rod is transferred into a recovery pipe, smoke carbon is rapidly released and recovered through a direct heating lamp and a guide fan, and meanwhile the activity of the honeycomb carbon is recovered.

The utility model relates to the technical field of detection devices, and provides a high-efficiency carbon adsorption microcapsule detection device which comprises a magnetic stirrer and a supporting rod fixedly connected to the top of the magnetic stirrer. According to the utility model, the locking bolt is rotated by hand to release the abutting state between the locking bolt and the supporting rod, so that the movable ring can slide downwards along the outer surface of the supporting rod, and the connecting rod, the connecting plate, the L-shaped bracket, the leak hole placing barrel and the like are synchronously driven to move downwards, so that the leak hole placing barrel is immersed into an adsorbate solution of a container; the locking bolt is rotated by hand to abut against the supporting rod to limit the movable ring, so that the situation that the microcapsules float on the surface of the adsorbate solution due to different densities, sizes and shapes can be prevented, and the microcapsules are in full contact with the adsorbate solution; further, the accuracy of the adsorption result of the adsorbate solution on the microcapsule carbon is improved.

The invention discloses a method and device for detecting carbon and nitrogen elements in fresh soil. The method comprises the steps of pipeline air exhaust, water quantification, low-temperature cracking, medium-temperature oxidation, high-temperature combustion and the like. The device comprises a combustion furnace, a heat exchange tube, an electronic condenser, a dehalogenation device, a flow divider, a collector, a reduction furnace, a carbon adsorption column and a TCD detector. The electronic condenser is used for cooling the vaporized atmosphere in the fresh soil, real-time high-precision quantitative analysis is carried out on the water content, and the content of carbon and nitrogen elements in the fresh soil is converted into the content of carbon and nitrogen in the dry soil through the water content of the soil; the contents of carbon or nitrogen in various forms are distinguished by utilizing staged combustion detection for the first time, the contents of main nutrient elements of carbon and nitrogen in the soil can be rapidly and accurately determined in a field edge site, and compared with determination after air drying of a soil sample, the detection time is greatly saved; the determination result of the method can guide field fertilization, provides a scientific basis for agricultural production, and serves modern agricultural development.

The invention relates to the technical field of water treatment, in particular to a composite treating agent for municipal sewage and a preparation method thereof.The composite treating agent is prepared by selecting industrial solid waste boric sludge, fly ash and the like as raw materials, taking biomass raw material epoxidized soybean oil as a binder, taking biomass raw material starch and plant-based porous carbon as adsorbents, mixing the raw materials with sodium silicate and water for granulation, and preparing the composite treating agent. The baking-free composite treating agent integrating multiple functions of sulfur autotrophic denitrification nitrogen removal, phosphorus removal, heavy metal chelating, porous carbon adsorption and the like is prepared, and when the baking-free composite treating agent is applied to urban sewage treatment, synchronous low-carbon and high-efficiency removal of various pollutants such as nitrogen, phosphorus and heavy metal can be achieved; after being granulated and formed, the composite treatment agent can be used as a filler of a biological filter to support the growth of sulfur autotrophic denitrifying bacteria, and can also be directly added into a pretreatment unit or an advanced treatment unit of a sewage treatment system.

High purity carbon sorbent monoliths, particularly effective for the removal of trace-contaminants such as ammonia, formaldehyde, and methyl mercaptan from a gas flow, are fabricated by 3D-printing polymer monoliths, pre-oxidizing them in a flow of air at a temperature below the melting point of the polymer precursor, carbonizing them, and subsequently activating them to a weight loss of about 20 percent. The pre-oxidation step effectively prevents polymer-monolith swelling and melting during carbonization.

The invention relates to the technical field of dry cleaning machines, in particular to a dry cleaning machine door opening air purification and regeneration system which comprises a negative pressure gas capturing device and a carbon adsorber, the gas capturing device comprises a negative pressure gas suction port, a negative pressure gas suction channel and a catalytic device, and the negative pressure gas suction port is formed in the circumferential direction of a door frame of a dry cleaning machine; the negative-pressure air suction channel is communicated with the negative-pressure air suction port and the catalytic device, the catalytic device is communicated with the carbon adsorber through an air pipeline, a steam heating pipe, an electric heating pipe, a heat pump and a cold pump are arranged in the catalytic device, and through multi-stage temperature regulation (condensation and heating), the treatment effect on gaseous tetrachloroethylene is remarkably improved; the stainless steel container is filled with granular activated carbon powder, has high specific surface area and good adsorption performance, and can effectively adsorb gaseous tetrachloroethylene, so that the concentration of the tetrachloroethylene in the barrel is reduced to 2g / m < 3 > or below.

A method and system for storing diborane is described by adsorbing diborane onto a microporous carbon adsorbent that contains slit pores between the graphite layers at intervals between the graphite layers that increase the activation energy required for diborane decomposition relative to the activation energy for decomposition of unadsorbed gaseous diborane.

The utility model relates to the technical field of novel granular carbon adsorption boxes, and discloses novel granular carbon adsorption box equipment which comprises an adsorption box body, a granular carbon drawer is installed at the lower end of the interior of the adsorption box body, an air uniformizing plate is arranged on the left side of the adsorption box body, and a drawer access door is installed at the front end of the adsorption box body. A maintenance door is arranged on the left side of the drawer maintenance door and is mounted on the adsorption box body through a closed hand wheel; according to the novel granular carbon adsorption box equipment disclosed by the utility model, a variable-diameter air equalizing structure is additionally arranged, the air outlet is more uniform, the air equalizing effect is better, an opposite-opening double-V-shaped flow guide structure is additionally arranged, waste gas flow can be better guided to a granular active carbon windward surface, the active carbon windward surface is increased, and the granular active carbon adsorption efficiency is improved.