35 results about "Mercury adsorption" patented technology

The invention discloses a metal sulfide loaded biochar demercuration adsorbent as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out mechanochemical grinding on a biomass raw material and metal sulfate through a high-energy ball mill to obtain a uniform precursor; and then performing one-step pyrolysis in an inert atmosphere, synchronously carbonizing the biomass and reducing the metal sulfate into metal sulfide, and finally preparing the metal sulfide nanoparticle and charcoal matrix strong coupling composite material. The method is simple in process, green and efficient, and avoids the defects of a traditional liquid phase method. The prepared adsorbent is high in active component dispersity, is firmly combined with a carrier, shows high adsorption capacity, high removal efficiency and good anti-interference stability for elemental mercury in flue gas, and has a wide application prospect in the field of mercury pollution control of coal-fired flue gas.

The invention discloses a method for preparing a waste incineration flue gas demercuration adsorbent by utilizing microorganism induced corrosion waste battery slag, which comprises the following steps: firstly, preparing an SRB (sulfate reducing bacteria) seed culture medium by mixing SRB and an anaerobic culture medium, and then adding sulfur-rich waste battery slag into the SRB seed culture medium for anaerobic reaction; and after the reaction is finished, centrifuging, washing with deionized water and drying to obtain amorphous iron sulfide (FeSx) generated by microorganism induced corrosion. According to the method, the sulfate reducing bacteria culture medium is used as the precursor solution, the waste battery slag is subjected to anaerobic modification to prepare the mercury removal adsorbent, on one hand, high-valued and resource utilization of the sulfur-rich waste battery slag is achieved, and on the other hand, the method capable of rapidly, accurately and simply preparing the high-activity amorphous metal sulfide adsorbent in a large-scale mode is explored. Meanwhile, the type of the flue gas demercuration adsorbent is also expanded.

This invention discloses a method for preparing a magnetic mercury removal adsorbent using waste plastics and waste battery tailings, and its application. The method includes the following steps: S1, premixing treatment: mixing waste battery tailings and waste plastic particles at a mass ratio of 1:0.17-1; S2, pyrolysis reaction: raising the tubular furnace to the target temperature of 500-700℃ and maintaining the temperature for 6 hours; S3, post-treatment. The application is the removal of gaseous mercury from flue gas using the magnetic mercury removal adsorbent. This invention uses waste battery acid extraction tailings and waste plastics as precursors, employing a simple pyrolysis reaction to synthesize a magnetic mercury removal adsorbent. The raw materials are readily available and inexpensive, the preparation method is simple, and it is easy to achieve industrial-scale application. The prepared magnetic mercury removal adsorbent possesses many advantages such as high mercury removal efficiency, strong acid and water resistance, magnetic recovery capability, and high-temperature regeneration capability, providing a new preparation method for magnetic recyclable flue gas mercury removal adsorbents.

The application belongs to the field of pollutant control, and specifically discloses a modified activated coke-based mercury removal adsorbent and a preparation method and application thereof. The preparation method is to heat the activated coke to 300-600 DEG C under a mixed atmosphere of inert gas and SO2 for pyrolysis modification, and to obtain the modified activated coke-based mercury removal adsorbent by cooling after the reaction. The application reduces the SO2 activated coke modification temperature to 300-600 DEG C, can change the mercury removal principle of the prepared mercury removal adsorbent, and makes it suitable for low-temperature mercury removal working conditions. Good mercury removal effect and sulfur resistance can still be achieved at a lower reaction temperature.

The present application belongs to the technical field of preparation of mercury-removal adsorbent, and provides a copper-manganese composite oxide natural gas mercury-removal adsorbent, a preparation method and application thereof. The preparation method comprises the following steps: mixing a copper salt, a manganese salt, water and a complexing agent solution to obtain a mixed solution; mixing the mixed solution and a potassium permanganate solution, and then performing a hydrothermal reaction to obtain a reaction product; sequentially performing centrifugation, suction filtration and washing, and drying on the reaction product to obtain a solid precipitate; placing the solid precipitate in an acid solution to perform etching; and sequentially performing suction filtration and washing, drying, and calcination on the etched solid precipitate to obtain the copper-manganese composite oxide natural gas mercury-removal adsorbent. The preparation method is simple, low in cost, short in production cycle and high in efficiency, and the prepared copper-manganese composite oxide natural gas mercury-removal adsorbent can be used for deep purification and mercury removal of mercury-containing natural gas through a fixed bed adsorption mode, so that efficient removal of mercury under a complex natural gas wet gas atmosphere can be realized.

The invention relates to the technical field of air pollution control and treatment materials, in particular to a nanocellulose-based CuS adsorbent as well as a preparation method and application thereof. According to the specific technical scheme, the method comprises the following steps: (1) dissolving NaOH in water, adding excessive copper sulfate to saturate Cu < 2 + > in the solution, taking supernate, and soaking CNFs in the supernate; (2) taking out the CNFs after all the CNFs turn blue, soaking the CNFs in DMF for 6-12 hours, and drying to obtain Cu-CNF; (3) dissolving the Cu-CNF and a sulfur source in absolute ethyl alcohol, and performing ultrasonic dispersion; and (4) reacting the solution obtained in the step (3) at 120-150 DEG C for 2-4 hours, centrifuging and drying to obtain the CuS-CNF. According to the preparation method, a renewable resource nano-cellulose is taken as a substrate material for constructing a high-performance zero-valent mercury adsorbent, a step-by-step in-situ anchoring strategy is adopted to carry out step-by-step functionalization on the nano-cellulose, and finally, the nano-cellulose-based CuS adsorbent is synthesized.

The application provides a high-temperature-resistant mercury adsorbent and a preparation method thereof. The method for preparing the high-temperature-resistant mercury adsorbent is completed by a flame synthesis method, comprising the following steps: preparing a precursor solution, wherein the precursor solution comprises a precursor and a solvent, and the precursor comprises tetrabutyl titanate, cerium 2-ethylhexanoate, copper acetate and tungsten hexacarbonyl; introducing the precursor solution into a first communication hole of a flame spray pyrolysis burner at a predetermined rate, while introducing a dispersion gas into a second communication hole of the flame spray pyrolysis burner and introducing a fuel gas into a third communication hole of the flame spray pyrolysis burner; the dispersion gas disperses the precursor solution into dispersed droplets, and the dispersed droplets are sprayed into a flame combusted by the fuel gas; the dispersed droplets form precursor vapor in the flame, the precursor vapor forms nucleation particles, and the nucleation particles are condensed by cooling to obtain the high-temperature-resistant mercury adsorbent. Thus, the high-temperature-resistant mercury adsorbent prepared by the above method has excellent high-temperature resistance and excellent mercury adsorption performance.

The invention belongs to the technical field of coal-fired flue gas demercuration, and particularly discloses a demercuration adsorbent as well as a preparation method and application thereof. The method provided by the invention comprises the following steps: mixing an organic heavy liquid with alcohol solvents in different proportions to obtain a first mixed solution, a second mixed solution and a third mixed solution with different densities; respectively adding fly ash into the first mixed solution, the second mixed solution and the third mixed solution, centrifuging, respectively taking upper-layer mixtures, uniformly mixing, and carrying out solid-liquid separation to obtain a mixed material; adding the mixed material into a mixed saline solution for dipping, and carrying out solid-liquid separation to obtain a mercury removal adsorbent; the mixed salt in the mixed salt aqueous solution is a mixture of halide and thiosulfate. The maximum adsorption capacity of the demercuration adsorbent prepared by the preparation method of the demercuration adsorbent provided by the invention can reach 15.68 mu g / g, and the mercury removal rate can reach 99.53%.

The invention relates to the technical field of adsorbent preparation, in particular to a preparation method and application of a sulfur-resistant cheap demercuration adsorbent. The preparation method of the adsorbent comprises the following steps: pyrolyzing the waste tires in an inert gas-containing atmosphere at 550-650 DEG C; the inert gas-containing atmosphere is a pure inert gas atmosphere or an inert gas atmosphere containing SO2 gas. According to the preparation method and application of the sulfur-resistant cheap demercuration adsorbent provided by the invention, the pyrolysis coke adsorbent with a large number of S element active sites is developed by taking waste tire particles as pyrolysis raw materials and researching pyrolysis temperature, gas components and an active coke treatment mode; the pyrolytic coke has the characteristics of good sulfur resistance, high adsorption capacity and low price.

A preparation method for the carrier, includes: 1) mixing hydrated alumina with an organic acid to obtain a mixture A; and 2) adding tetraalkylsiloxane to the mixture A, thus obtaining a mixture B; stirring the mixture B in a closed condition; spraying atomized water into the mixture B; and stirring to yield the carrier.

This invention provides a method for preparing, applying, and regenerating a modified porous carbon material mercury adsorbent, belonging to the field of industrial exhaust gas purification. The preparation method involves dissolving an initiator in a solution A rich in acidic oxygen-containing functional groups to obtain solution B; mixing solution B with a monomer solution rich in acidic oxygen-containing functional groups to obtain an impregnation solution; immersing the porous carbon material in the impregnation solution and draining it; heating the obtained porous carbon material to a first temperature and maintaining it for 3-20 hours, then further heating it to a second temperature and maintaining it for 1-6 hours to obtain the final mercury adsorbent. This mercury adsorbent is used to remove Hg from industrial exhaust gas. 0 The removal of mercury is achieved by heating the modified porous carbon material mercury adsorbent after adsorption to 210-260℃ in an inert or oxygen-deficient atmosphere and maintaining the temperature for 0.5-3 hours at a heating rate of 0.5-5℃ / min. The mercury adsorbent of this invention exhibits significantly improved mercury capture efficiency, with a mercury capture capacity increased by more than 25 times.

The invention relates to the technical field of air pollution control adsorbents, in particular to a high-dispersion asymmetric coordination CuSx-N4-x-C adsorbent as well as a preparation method and application thereof. According to the specific technical scheme, the preparation method comprises the following steps: (1) adding polyacrylamide into a copper nitrate solution, stirring, drying and grinding; the preparation method comprises the following steps: adding Cu-N4-C into a reaction kettle, stabilizing at 200-300 DEG C for 2-4 hours, and carbonizing under the protection of inert gas to obtain Cu-N4 And (2) adding a sulfur source into water, stirring and dissolving, adding Cu-N4-C, performing ultrasonic treatment, and performing hydrothermal reaction to obtain the CuSx-N4-x-C adsorbent. According to the invention, a high-dispersion Cu-N4-C carbon-based material is constructed as a precursor material of a novel sulfur-resistant mercury removal adsorbent, and then based on strong affinity between copper and sulfur, a weak electronegative functional group sulfur is introduced to form a carbon-based adsorbent (CuSx-N4-x-C), so that uniform dispersion and high utilization rate of CuS are realized.

This invention belongs to the technical field of solid waste resource utilization. It discloses a method for preparing a mercury removal adsorbent from brominated flame-retardant waste plastics and the mercury removal adsorbent itself. The method includes: pulverizing and drying the brominated flame-retardant waste plastics to obtain reaction raw materials; placing the reaction raw materials in a pyrolysis reactor and pyrolyzing them under an inert atmosphere to obtain solid residue; placing the solid residue in a low-temperature plasma reactor and modifying it through discharge between two electrodes; and pulverizing and grinding the modified solid residue to obtain the mercury removal adsorbent. This invention uses brominated flame-retardant waste plastics as raw materials and prepares a mercury removal adsorbent through low-temperature plasma modification. The raw material is electronic waste, which is generated in large quantities, has low cost, and is simple to prepare and modify. It can solve two problems: mercury removal from flue gas in coal-fired power plants and resource recycling of electronic waste. The use of pyrolysis reaction and low-temperature plasma modification significantly improves the mercury removal efficiency.

To provide a processing method of mercury-containing waste and a processing system of mercury-containing waste capable of suppression of mercury adsorption in a catalytic reaction tower and improving removal efficiency of mercury in the mercury adsorption tower.SOLUTION: A processing method of mercury-containing waste includes: a heat treatment process of heat treatment of a mercury-containing waste; a dust collection process for recovery of dusts in an exhaust gas containing mercury generated by the heat treatment process; a dioxin decomposition process of decomposition of dioxins contained in the exhaust gas by bringing the exhaust gas having been through the dust collection process into contact with dioxin decomposition catalyst; and a mercury adsorption process of bringing the exhaust gas having been through the dioxin decomposition process into contact with an adsorbent for absorbing and removing mercury contained in the exhaust gas, wherein an acidic gas concentration adjustment process for adjusting a concentration of the acidic gas contained in the exhaust gas and supplied to the dioxin decomposition process to the objective concentration or over.SELECTED DRAWING: Figure 1

The invention discloses a magnetic demercuration adsorbent applied to water-containing flue gas and a preparation method, and belongs to the technical field of flue gas purification. The preparation method comprises the following steps: firstly, carrying out pretreatment and magnetic separation on the copper slag, grinding the copper slag into particles, adding the particles into a sodium alginate solution, and fully stirring; then titrating the solution obtained after stirring into a copper nitrate solution, and freeze-drying the obtained rubber balls in a vacuum freeze-drying machine; and putting the sample obtained by freeze drying into a fixed bed for pyrolysis, and cooling after the pyrolysis is finished, thereby obtaining the product. The solid waste copper slag is used as a raw material, and solid waste disposal and metal extraction and reutilization are achieved; and the energy consumption is low in the preparation process of the magnetic mercury removal adsorbent. Meanwhile, the prepared magnetic mercury removal adsorbent can better realize mutual combination of metal iron and a carbon material, has water resistance, and can realize high mercury adsorption efficiency in water-containing flue gas, and the real-time mercury removal efficiency can reach 95% or above.

The application discloses a kind of selective removal of divalent mercury in smelting waste acid The preparation method of magnetic adsorbent belongs to the technical field of divalent mercury removal in smelting waste acid.The adsorbent described in the application is formed by loading copper sulfide (CuS) on Fe-Ti spinel by passing hydrogen sulfide gas into the mixed solution of Fe-Ti spinel (Fe-Ti spinel) and copper sulfate, and then calcining under nitrogen protection. The application significantly improves the ability of CuS / Fe-Ti spinel to remove divalent mercury by means of calcining under nitrogen protection. At the same time, the adsorbent has excellent selectivity for the removal of divalent mercury. In addition, the adsorbent has superparamagnetism and can be easily separated from smelting waste acid by an external magnetic field, making it easy to safely dispose of the mercury-containing adsorbent.

The invention discloses a method for preparing a renewable demercuration adsorbent from an industrial waste acid modified waste mercury catalyst and application of the renewable demercuration adsorbent, and belongs to the related technical field of industrial waste resource utilization and fixed source tail gas mercury pollution control. According to the renewable demercuration adsorbent prepared through the method, the demercuration efficiency can be kept at 99.15% after 22 min in the pure N2 atmosphere, the demercuration efficiency is 96.41% after ten times of circulation, cooperative treatment and resource utilization of the waste mercury catalyst and the waste acid are achieved, and the method is suitable for industrial waste acid treatment. And the method can effectively control the mercury pollution of the tail gas of the fixed source, and is a recyclable, environment-friendly and low-cost renewable demercuration adsorbent preparation technology.

The invention provides a method for removing mercury through medical waste incineration, a mercury removal adsorbent and application. The method for removing mercury through medical waste incineration comprises the following steps that after a mercury removal adsorbent solution is sprayed to the surface of medical waste, incineration is conducted; the demercuration adsorbent disclosed by the invention comprises CaCl2, CaBr2 and KI which are compounded, so that the removal of Hg < 0 > in flue gas is greatly improved; the mercury removal adsorbent also contains MgO, the MgO is used as an alkaline neutralizer, and acidic gases such as HCl, HBr and HI generated by incineration are neutralized to create a more stable reaction environment for halogen free radicals, so that the potential inhibition on HgO oxidation chain reaction is reduced, and the oxidation rate is further improved; meanwhile, the concentration of dioxin in the flue gas can be reduced due to the existence of MgO; mgO is used as an alkaline neutralizer and can react with hydrogen halide to generate corresponding salt, so that the effect of reducing acid dew point corrosion is achieved, and the corrosion of flue gas to equipment is further reduced.

The present invention discloses a preparation method and application of a denitrification and mercury co-removal SCR honeycomb catalyst, which relates to the technical field of flue gas denitrification. The raw material components of the denitrification catalyst of the present invention include: anatase catalytic titanium dioxide, pseudo-boehmite, ammonium metavanadate-monoethanolamine aqueous solution, ammonium heptamolybdate, ammonium metatungstate, glass fiber, cerium nitrate, copper nitrate, antimony acetate, silica sol, sesbania powder and polyethylene oxide. The denitrification and mercury co-removal SCR catalyst prepared by the present invention has a large specific surface area, good dispersion of active components, strong mercury adsorption and oxidation ability, remarkable denitrification effect, and has a good Hg<supgt;0< / supgt; oxidation rate, and is very suitable for the denitrification and mercury emission control of fixed-source flue gas such as thermal power plants, coking plants, waste incinerators, iron and steel sintering machines, and cement kilns.

A modified natural sulfide ore material, a preparation method, and a use thereof are disclosed. A natural sulfide ore and a copper salt are used as raw materials. The natural sulfide ore is modified through mechanical grinding for activation, drying, and the like to synthesize a sulfide ore composite. The copper salt is subjected to a reaction to increase metal sites, produce fine microcrystalline particles, and change the crystal structure, such that active sites can be fully exposed. When contacting mercury in a gas phase and / or a liquid phase, the modified natural sulfide ore material can convert the mercury into a stable compound to realize the immobilization and removal of the mercury, which has advantages such as large mercury adsorption capacity, high adsorption rate, wide application temperature range, low cost, abundant raw material reserves, simple operation, and environmentally-friendly mercury removal products without secondary pollution and shows promising industrial application prospects.

The utility model discloses flue gas demercuration equipment, which comprises a processing component, a demercuration component and a demercuration component, the processing component comprises a gas delivery pipe, a fan is arranged at an outlet of the gas delivery pipe, and a filter screen is further arranged in the gas delivery pipe and is arranged on one side, far away from the outlet of the gas delivery pipe, of the fan; the conveying part is arranged on one side of the treatment part, one end of the conveying part is connected with the gas conveying pipe, and the conveying part is used for conveying the granular activated carbon into the gas conveying pipe; the collecting part is arranged below the gas conveying pipe, one end of the collecting part is connected with the gas conveying pipe, and the collecting part is used for collecting the saturated and adsorbed granular activated carbon; according to the flue gas demercuration device, the flue gas and granular activated carbon are in full contact in the gas conveying pipe through the matching of the gas conveying pipe and the conveying part, so that the flue gas demercuration is carried out, the activated carbon saturated by adsorption is collected and recycled by the collecting part, and the treated activated carbon is conveyed into the conveying part again, and the whole working process does not need equipment shutdown; the working efficiency is improved.

The invention provides a selenium-doped copper-cobalt bimetallic sulfide demercuration adsorbent and a preparation method and application thereof, CuCo2S4 of a spinel structure is used as a main body of the demercuration adsorbent, selenium is doped to form Se-Sn2-active sites, and the doping molar ratio of selenium is 2.5%-12.5%. The preparation process of the adsorbent comprises the following steps: dissolving cobalt salt, copper salt and trisodium citrate dehydrate into deionized water, performing ultrasonic treatment, performing microwave irradiation in a microwave synthesizer, and dropwise adding an aqueous solution containing Na2S and SeO2. After cooling to room temperature, centrifuging, washing and drying to obtain a sample. The problems that traditional metal sulfide is poor in stability and not easy to regenerate are solved, the preparation method is simple, the large-scale preparation cost is low, the method can be directly applied to removal of mercury in natural gas, and the cost is reduced.

The invention discloses a mechanism-data driven mercury adsorbent design and wet elution optimization method, which comprises the following steps of: firstly, analyzing adsorption characteristics of mercury and hydrogen sulfide on transition metal oxide and element reaction kinetic parameters of mercury species in a solution through density functional theory calculation and thermodynamic calculation; then extracting characteristic values influencing adsorption and elution performance, and carrying out data preprocessing; a machine learning method is used for screening out key characteristic values leading the adsorption performance of mercury and hydrogen sulfide, and transition metal oxides with the maximum adsorption performance of mercury and the lowest desorption energy of hydrogen sulfide are predicted; meanwhile, the characteristic value of the elution performance of the mercury species in the solution is screened out, and the elution solution with the optimal elution effect of the mercury species is predicted; and finally, based on a prediction result, synthesizing a high-performance transition metal oxide suitable for removing mercury in the synthesis gas flue gas, and realizing efficient desorption of mercury species and regeneration of an adsorbent through a matched eluent. The research and development efficiency and the wet elution effect of the mercury adsorbent are improved.

The application provides a mercury adsorbent, a preparation method and application. The mercury adsorbent is a mesoporous material, and the mercury adsorbent comprises cobalt sulfide and biomass charcoal. The cobalt sulfide is loaded on the biomass charcoal, the cobalt sulfide is CoS2, and the mass percentage of the cobalt sulfide is 10-70%. The mercury adsorbent has the following advantages: the cobalt sulfide is uniformly dispersed, the mesoporous pore size of the mercury adsorbent is larger than the micropore size, the diffusion of mercury Hg is promoted, the mercury Hg is fully contacted with the cobalt sulfide, and the mercury Hg is adsorbed by the cobalt sulfide, so that the mercury adsorption capacity of the mercury adsorbent is improved. The mercury adsorbent has a high mercury adsorption capacity, and can effectively adsorb mercury.

The application discloses a method for preparing an adsorbent by using landfill leachate and red mud, and comprises the following steps: (1) mixing the landfill leachate and the red mud uniformly to obtain organic mixed red mud, and then performing roasting treatment on the organic mixed red mud to obtain roasting mud; (2) mixing fly ash and the roasting mud uniformly, and then performing grinding to obtain roasting mixed powder mud; (3) mixing the landfill leachate and the roasting mixed powder mud uniformly, performing granulation, and then standing to obtain raw material particles; and (4) performing hydrothermal reaction on the raw material particles, wherein the hydrothermal liquid is the landfill leachate, after the hydrothermal reaction is completed, solid-liquid separation is performed, the particles after the hydrothermal reaction are dried, and the adsorbent is obtained. The application realizes the resource utilization of industrial waste, and the treatment process is simple; by coupling the roasting and the hydrothermal reaction of the mixed landfill leachate and the red mud, the adsorbent with high adsorption performance is prepared, and the highest mercury adsorption capacity and the highest cadmium adsorption capacity can reach 237 mg / g and 188 mg / g respectively.

The invention provides a method and a system for regenerating an inactivated mercury removal adsorbent through light-heat coupling strong jet flow. The system mainly comprises an opposite-phase impact regeneration device, a high-speed nozzle arranged in the opposite-phase impact regeneration device, an ultraviolet lamp tube, a material mixing preheating tower, a stirrer, a flue gas waste heat exchanger, a liquid-solid separator and a flue gas-air heat drying and activating system. High-activity free radicals are induced by utilizing ultraviolet light-flue gas waste heat and a counter-impact flow coupling activation regeneration reagent in an opposite-phase counter-impact regeneration device, and the high-activity free radicals can generate a violent chemical reaction with harmful substances covering surface sites of an inactivated adsorbent; and the high-speed jet flow generated by the counter-impact flow can impact covering substances on the surface and in gaps of the adsorbent, so that the deactivated mercury removal adsorbent is regenerated synergistically from two aspects of chemistry and physics. The device disclosed by the invention has the comprehensive advantages of simple structure, high regeneration efficiency, high mass transfer and diffusion efficiency, energy conservation, low carbon, green and environment-friendly operation process and the like, and has good industrial application value.

Provided is an activated carbon for adsorbing mercury that can adsorb mercury more efficiently without utilizing the properties of inorganic compounds such as halogen or sulfur compounds that are suitable for adsorbing mercury. The activated carbon for mercury adsorption in petroleum refining has a BET specific surface area of ​​1200 m2 calculated by the BET method from the nitrogen adsorption isotherm. 2 / g or less, the average pore diameter calculated by the following formula (i) using the pore volume calculated from the nitrogen adsorption isotherm by the BET method is 1.75 nm or less, and the pore volume of pores with a diameter of 0.6 nm or less calculated from the nitrogen adsorption isotherm by the MP method is 0.14 cm 3 / g or more, and the pore size distribution calculated by the MP method from the nitrogen adsorption isotherm (vertical axis: log differential pore volume dV / dlogD (cm 3 / g), horizontal axis: pore diameter D (nm), the maximum peak position of the pore diameter is in the range of 0.5 to 0.7 nm.

This invention provides a mercury adsorbent regeneration process and its application. The process includes: calcining a mercury-loaded adsorbent to remove mercury and condensing and recovering elemental mercury, obtaining mercury-removed slag; then subjecting the slag to sulfidation to obtain the regenerated adsorbent. The mercury adsorbent is prepared from a precursor with a molybdenum-sulfur molar ratio of 1:0.1-1:40. This regeneration process achieves highly efficient adsorbent regeneration, maintaining an adsorption capacity of no less than 3600 mg / g after multiple cycles, while simultaneously recovering mercury resources. It solves the problem of traditional wet regeneration methods that easily damage active sites and is suitable for treating mercury-containing wastewater.

The present invention belongs to the technical field of catalyst regeneration, and particularly relates to a regeneration system and method for a carbon-based catalyst. The system includes a mercury measurement device for the regeneration tower, a sulfur resource utilization device, and a mercury adsorption tower. The tower body of the regeneration tower sequentially includes a feeding section, a preparation section, a heating section, and an analysis section from top to bottom. Among them, a first gas outlet is provided in the preparation section, and a second gas outlet is provided in the analysis section. The first gas outlet is communicated with the mercury measurement device through a connecting pipeline, and the second gas outlet is sequentially communicated with the mercury adsorption tower and the mercury measurement device through a connecting pipeline. The mercury measurement device is communicated with the sulfur resource utilization device. The system of the present invention can complete the regeneration of the carbon-based catalyst, and at the same time can effectively separate mercury and gases such as SO2 in the analysis gas generated during the regeneration process, and respectively utilize the separated mercury and gases such as SO2 for resource utilization.