18 results about "Carbon adsorption" patented technology

This utility model discloses an ammonia removal device, including an ammonia removal cylinder, a water washing mechanism, and an activated carbon adsorber. The ammonia removal cylinder includes a cylinder body, a sleeve, and multiple air guide components. The sleeve is fixedly connected to the cylinder body and passes through the cylinder body, forming a washing chamber between the sleeve and the cylinder body. The multiple air guide components are circumferentially installed on the sleeve and can guide the airflow in the washing chamber into the sleeve. The cylinder body has an air inlet end communicating with the washing chamber and an exhaust end communicating with the top of the sleeve. The water washing mechanism is installed in the washing chamber and is used to wash the airflow entering the washing chamber through the air inlet end. The activated carbon adsorber is installed in the sleeve and is used to filter the airflow output by the multiple air guide components. This invention solves the problem in the prior art where ammonia removal devices purify waste gas by spraying ammonia removal liquid, and some ammonia in the waste gas is not completely absorbed.

The application provides a fish waste full-component high-value utilization method, which comprises the following steps: mixing fish waste and wet desulfurization wastewater of a thermal power plant according to a certain mass ratio, putting the mixture into a reaction kettle, stirring and heating, keeping warm for a certain time, cooling to room temperature, filtering and separating, obtaining a carbon-based precursor and a liquid product; putting a certain amount of the carbon-based precursor into a coffee acid-added distilled water mixed solution, stirring at room temperature for a certain time, putting into a reaction kettle, closing the kettle body, stirring and heating again, keeping warm for a certain time, cooling to room temperature after the reaction is completed, filtering, separating, drying, obtaining a target carbon adsorption material and a liquid product; mixing all the liquid products, putting into a reactor, adding Al2O3, SiO2 and methanol, closing the kettle body, introducing CO2 to a certain pressure, opening a stirring device, heating and reacting, separating after the reaction is completed, and obtaining a liquid oil. The fish waste full-component high-value utilization is realized by using multistage hydrothermal treatment.

This invention belongs to the technical field of water pollution control and solid waste resource utilization, specifically relating to a method for preparing porous carbon adsorbent materials and their application. The method includes the following steps: S1, pretreating carbon-containing biomass solid waste and calcium-containing industrial solid waste respectively to obtain pretreated biomass material and pretreated calcium-containing solid waste; S2, immersing the pretreated biomass material in an iron-based modifier system for modification treatment to obtain iron-based modified biomass material; S3, mixing the iron-based modified biomass material and the pretreated calcium-containing solid waste evenly to obtain a catalytic precursor; S4, subjecting the catalytic precursor to programmed temperature co-pyrolysis treatment, and obtaining a primary pyrolysis product after cooling; S5, sequentially subjecting the primary pyrolysis product to water washing, solid-liquid separation, drying, and pulverization to obtain the porous carbon adsorbent material. The raw materials of this invention are widely available and inexpensive, the preparation process is simple and can be mass-produced, and the overall cost is significantly lower than that of ordinary commercial activated carbon.

The present application relates to a kind of salt solution desorption direct air capture carbon adsorption material and its preparation and application, the material is prepared by the following method: (1) the ion exchange resin is weighed and placed in CuCl2 solution and is treated by first impregnation, filtration, washing, and metal-loaded ion exchange resin is obtained;(2) the metal-loaded ion exchange resin in step (1) is placed in NaOH solution and is treated by second impregnation, filtration, and direct air capture carbon adsorption material is obtained, that is, the target product.The direct air capture carbon adsorption material of the present application can adsorb and desorb CO2 under room temperature and normal pressure conditions.Due to acid-base neutralization and the synergistic effect of electrostatic attraction, low concentration CO2 in air reacts to be HCO3 ‑ Combined on coordination site.Because the coordination priority of Cl ‑ Is higher than HCO3 ‑ , desorption can be completed using salt solution, and the operation is simple, without additional energy consumption.CO2 adsorbed in the form of carbonate exists stably in solution phase, and has great potential in CO2 resource utilization.

The utility model discloses a long and big tunnel pollutant purification intelligent device relates to environmental pollution control field, including the casing, the casing inside is provided with first baffle, second baffle, third baffle, first baffle, second baffle, third baffle divide the casing inside from below to above in proper order into electrostatic adsorption chamber, carbon adsorption chamber, photocatalytic chamber and pump processing chamber, electrostatic adsorption mechanism, electrostatic adsorption mechanism fills in electrostatic adsorption chamber, activated carbon adsorption mechanism, activated carbon adsorption mechanism sets up in carbon adsorption chamber, photocatalytic mechanism, photocatalytic mechanism sets up in photocatalytic chamber, pump body mechanism, pump body mechanism includes a group of air pump and water tank, sets up in pump processing chamber, the casing surface air inlet top is provided with the control screen, the utility model discloses the above -mentioned structure realizes intelligent control, first adsorption pollution, then use nanometer photocatalytic technology processing effectively reduced the tunnel environment in car exhaust pollution.

The utility model provides a glycine drying tail gas treatment device belongs to glycine production technical field solves the problem that the prior art cannot recover small granular material and the poor absorption effect of methanol in the tail gas after the spray tower. The glycine drying tail gas treatment device includes pulse cloth bag dust collector, spray tower and granular carbon adsorption device, pulse cloth bag dust collector is used for separating gas and granular material, recycles granular material, the import of spray tower and the gas outlet of pulse cloth bag dust collector intercommunication, granular carbon adsorption device includes demister, drying heater and granular carbon adsorber, and the outlet of spray tower, demister, drying heater and granular carbon adsorber intercommunication in proper order, the outlet of granular carbon adsorber and total exhaust cylinder intercommunication, and granular carbon adsorber can adsorb the methanol in gas. The glycine drying tail gas treatment device can recover small granular material, can be accurate and efficient dust removal, can also adsorb the methanol remaining in tail gas.

The application discloses a kind of hierarchical porous carbon sponge for radioactive iodine adsorption and preparation method thereof, belong to functional material technical field.The pine needle of the present application is washed, dried and crushed, then is placed in crucible, carbonizes under nitrogen atmosphere, i.e.pine needle hierarchical porous carbon pre-carbonization precursor is obtained;The pre-carbonization precursor is ground and crushed to be uniformly mixed with potassium hydroxide, and an activated precursor mixture is obtained;The ground activated precursor mixture is placed in crucible, annealed under nitrogen atmosphere, washed to neutral, and then dried overnight, i.e.hierarchical porous carbon adsorption material is obtained;The hierarchical porous carbon adsorption material is mixed with sodium alginate and water to form a uniform suspension;Melamine sponge (MS) is immersed in the suspension, stirred until completely soaked, then taken out and immersed in calcium chloride solution, filtered, washed and vacuum dried to obtain hierarchical porous carbon sponge.The material of the present application shows extremely fast adsorption kinetics and extremely high adsorption capacity for gaseous iodine. The data of examples show that the adsorption equilibrium can be reached within 2.5 hours, and the maximum adsorption capacity is as high as 2.3 g / g.

This invention relates to the field of sulfur production technology from natural gas, specifically to a system and method for producing sulfur from sour natural gas. The system includes an oxidation unit connected in series via pipelines; a gas-liquid separation unit connected via pipeline to the oxide outlet of the oxidation unit; a hydrogenation unit connected via pipeline to the gas phase outlet of the gas-liquid separation unit; and a sulfur adsorption unit and / or carbon adsorption unit connected via pipeline to the hydrogenated stream outlet of the hydrogenation unit; wherein the hydrogenated stream outlet of the hydrogenation unit is connected via pipeline to the sour natural gas feed inlet of the oxidation unit. This system, through the series connection of the oxidation unit, gas-liquid separation unit, hydrogenation unit, sulfur removal unit, and carbon removal unit, ensures that the process can be carried out under constant pressure throughout the entire process, and features low energy consumption and a simple process.

The present application belongs to the technical field of porous carbon adsorbent, and particularly relates to a lignin porous carbon adsorbent, a preparation method and application thereof. The preparation method comprises the following steps: heating and uniformly mixing a hydrogen bond acceptor and a hydrogen bond donor to obtain a eutectic solvent, adding a third component into the eutectic solvent, uniformly mixing to obtain a eutectic solvent system, and the third component is selected from polyethylene glycol, ethylene glycol or water; adding lignin into the eutectic solvent system, heating, stirring and dissolving, mixing with an anti-solvent, precipitating a product, separating and drying the precipitated solid product to obtain regenerated lignin; mixing the regenerated lignin with a phenol aqueous solution, then adding a crosslinking agent into the mixture, stirring and dissolving, and obtaining lignin-based nanospheres after reaction; uniformly mixing the lignin-based nanospheres with an activating agent, carbonizing and activating to obtain the lignin porous carbon adsorbent. The prepared lignin-based nanospheres have a high specific surface area, a large micropore specific surface area, and can fully expose the adsorption sites of gas molecules to improve the adsorption capacity.

Modified carbon adsorbents for use in removal of per- and polyfluoroalkyl substances (PFAS). In a method for removing PFAS from a fluid, the fluid is treated with a carbon adsorbent, which comprises a modified carbon5 adsorbent, which is modified with at least one amphiphilic substance comprising quaternary amine surfactants functionality and having a carbon chain length of C10 - C14.

This invention relates to a nickel metal embedded porous carbon adsorbent, its preparation method, and its application, comprising the following steps: S1, adding a nickel salt solution dropwise to nano-silica, drying it, and then adding biomass for grinding; S2, pre-carbonizing the product after grinding in step S1 at a low temperature; S3, carbonizing the product after pre-carbonization in step S2 at a high temperature under inert gas protection; S4, adding an alkaline solution to the product after high-temperature carbonization in step S3 to remove the nano-silica, thereby obtaining the nickel metal embedded porous carbon adsorbent. Compared with the prior art, this invention has a unique embedded structure, which improves the stability of the metal sites, and has a large specific surface area and pore volume, thereby improving the selective adsorption capacity for Xe and effectively separating Kr and Xe.

This invention relates to the field of adsorption materials technology, specifically disclosing a porous carbon adsorbent, its preparation method, and its application. The method includes the following steps: (1) mixing urea with an aqueous solution of alcohol to obtain a mixed solution; wherein, the mass ratio of alcohol to water in the aqueous solution of alcohol is 5:1-10; (2) adding activated carbon to the mixed solution for soaking to obtain impregnated carbon; (3) carbonizing the impregnated carbon under inert gas protection to obtain a porous carbon adsorbent. The preparation method of the porous carbon adsorbent provided by this invention helps to significantly improve the adsorption capacity and adsorption capacity of the porous carbon adsorbent for carbon dioxide under normal pressure, and can significantly improve the regeneration performance of the porous carbon adsorbent.

The present application relates to the technical field of manganese dioxide preparation, in particular to a method for deep purification and impurity removal of manganese sulfate solution for electrolytic manganese dioxide. The preparation process comprises the following steps: preliminary treatment of crude manganese sulfate solution; preparation of iron-manganese doped carbon adsorbent from lignin; complex precipitation of heavy metal ions in the treated manganese sulfate solution by sodium lignosulfonate and iron-manganese doped carbon adsorbent; preparation of byproduct from the filter residue in step S3 by high-temperature pyrolysis. The present application prepares iron-manganese doped carbon adsorbent from high-temperature pyrolysis of lignin, and adsorbs heavy metal ions in the manganese sulfate solution by the iron-manganese doped carbon adsorbent. The carbon adsorbent obtained after high-temperature treatment of lignin has a certain effect of flocculating metal ions, and can complex with heavy metal ions in the manganese sulfate solution to form solid complexes, thereby removing other heavy metal ions in the manganese sulfate solution and improving the purity of the manganese sulfate solution, laying a foundation for the preparation of high-purity manganese dioxide.

The utility model relates to a kind of catalytic combustion and front and rear grouping activated carbon adsorption filter combination device, belong to environmental protection equipment waste gas treatment field, it includes: waste gas input pipe, plate filter, front frame, front group air inlet pipe, front group activated carbon filter, front group exhaust pipe, catalytic combustion chamber air inlet pipe, catalytic combustion chamber, rear frame, with air valve's air inlet pipe, rear group activated carbon filter, rear group exhaust pipe, auxiliary purification exhaust pipe, purification main exhaust pipe, and in the front, rear of the catalytic combustion chamber respectively set front group activated carbon adsorption filter device and rear group activated carbon adsorption filter device, it is less or smaller than the waste gas particulate matter of single group's activated carbon adsorption filter and combustion after emission, more conducive to environmental protection.

The present application provides a kind of carbon capture microspheres and its preparation method and application, the carbon capture microspheres include degradable porous microspheres, and the component group of amine group containing substance component loaded on the porous microspheres, wherein, the porosity of carbon capture microspheres is 70~90%;Pore volume is 3~20cm 3 / g;Pore size is 100nm~10μm;Particle size is 10~500μm.The present application provides that the carbon capture microspheres are more than 1mmol / g to CO2 Absorption capture quantity, and it is a kind of green environmental protection performance excellent carbon adsorption material.

This invention provides a high-temperature carbon adsorption device, including a cooling body. A drainage component is detachably installed at the bottom of the cooling body. An adsorption component is detachably installed inside the end of the drainage component away from the cooling body. The drainage component includes a shell, and the cooling body includes an outer wall. A countersunk hole is formed at one end of the shell, and a first internal thread is formed on the shell. The adsorption component includes a insert shell, and an external thread is formed at the end of the insert shell away from the cooling body. An activated carbon fiber plate is detachably installed inside the insert shell, and the first internal thread and the external thread are adapted to each other. In this invention, by inserting the adsorption component for waste gas adsorption into the shell, and then adapting and locking the first internal thread on the inner side of the shell with the external thread on the outer side of the insert shell, the adsorption component for waste gas adsorption can be sealed and detachably installed into the shell. This effectively avoids gaps between the adsorption component and the shell, which could cause some gas to leak out through the gaps, resulting in a decrease in the treatment effect of the waste gas.