50results about How to "Increase regeneration rate" patented technology

The invention discloses an organic waste gas adsorbing recovery device and a process. The device comprises at least two macromolecule resin adsorbing towers, a heat pump, a vacuum pump, a condenser, a liquid storing tank and the like, wherein the macromolecule resin adsorbing towers are internally provided with waste gas inlet regions, purifying regions for adsorbing and purifying gas and a purifying gas discharging region; the purifying regions are provided with adsorbing layers which are horizontally paved, the adsorbing layers are composed of multi-hole supporting plates fixed on the adsorbing towers, heat exchanging coils paved above the multi-hole supporting plates and macromolecule resin layers which are fully paved on the cross sections of the adsorbing towers above the heat exchanging coils successively in a overlaying manner, and the heat exchanging coils are provided with inlets and outlets communicated with the heat pump arranged outside the adsorbing towers. The organic waste gas adsorbing recovery device and the process provided by the invention have the advantages that a non-flammable macromolecule resin is adopted as an adsorbing material, the removing rate of middle-high concentration organic waste gas is more than 98%, the organic waste gas recovery rate is more than 95%, the resin is fully regenerated, and the organic waste gas can reach the discharge standard.

The invention provides an ionic liquid CO2 trapping agent and a preparation method thereof. Due to functional design, the anion is an amino acid radical, and the ionic liquid is synthesized by a halogenated intermediate and is excellent functional ionic liquid; and the product directly serves as the CO2 trapping agent without dehydration and purification. The trapping agent is low in synthesis cost and low in price and has better trapping performance and regeneration performance than amino salt absorbents. The invention can be applied to tower reactors (such as bubble towers, packed towers, plate towers and the like) and the film absorption process; the trapping agent is recycled in a device; and the provided ionic liquid has wide application market in the field of separating and trapping of acid gases.

A venting system for a fuel tank includes a sorption filter for temporarily storing fuel evaporating from the fuel tank and a delivery device arranged between the sorption filter and an air supply system of an internal combustion engine in a fluid-conducting manner. The internal combustion engine is a turbocharged engine with a turbocharger unit and a throttling device in the air supply system. The sorption filter is connected to the air supply system in a fluid-conducting manner by a first line at a first inlet point arranged upstream of the turbocharger unit and by a second line at a second inlet point arranged downstream of the throttling device. A tank venting valve is arranged in the second line, and the first line branches off from the second line upstream of the tank venting valve in the flow direction towards the second inlet point.

The invention relates to a microwave electro-Fenton method for processing organic wastewater and a device thereof. Under the action of microwave, a boron-doped diamond film electrode is used as an anode material for electrochemical degradation processing, and organic pollutant containing wastewater is processed efficiently by an electrochemical method. According to the invention, the boron-doped diamond film electrode is utilized to continuously generate hydroxyl radical with strong oxidation capacity in a wastewater system containing divalent iron ions, and in-situ activation of the boron-doped diamond film electrode is carried out by means of thermal effect and non-thermal effect of microwave so as to increase activity of the electrode and promote mass transfer process during the degradation process of organic pollutants. Therefore, the oxidation capacity of the electro-Fenton reaction is enhanced, and mineralization reaction rate is effectively accelerated. In comparison with traditional Fenton and electro-Fenton methods, the processing effect of the microwave electro-Fenton method provided by the invention is effectively enhanced. The method provided by the invention is simple to operate, has a good effect of processing organic wastewater, and has a wide application prospect as well as development potential.

The invention provides non-aqueous decarburization solution for capturing carbon dioxide in a mixed gas, and belongs to the technical field of capturing of carbon dioxide gas. The invention relates to a non-aqueous decarburization solution, wherein a main absorption component is N-ethyldiethanolamine, and a solvent is N,N-diethylethanolamine. Because the non-aqueous decarburization solution has a high boiling point and low viscosity, uses tertiary amine capable of participating in CO2 absorption as the solvent, and uses secondary amine with a fast absorption speed and a high absorption amount, and easy to regenerate as the main absorption solvent, the absorption capacity, purification degree and desorption speed for carbon dioxide are increased, the temperature range of the reaction is expanded, the volume of a regeneration tower is reduced, the energy consumption of the regeneration is greatly reduced, and the equipment investment and operation cost are reduced. The non-aqueous decarburization solution provided by the invention is mainly used for capturing carbon dioxide in the tail gases of multiple chemical reactions, the tail gases of steel plants and cement plants, ore decomposition gas, combustion flue gas, natural gas, city gas and marsh gas, and has wide application prospect.

The invention discloses a silk fibroin multilayer functional membrane with a gradient structure and its preparation method. The method comprises: adopting a silk fibroin membrane with nanopores as a barrier layer, controlling the crystalline form and pore structure of silk fibroin, adjusting the barrier effect of silk fibroin on the connective tissues and its effect on nutrient exchange; using a silk fibroin textile / calcium phosphate composite material of high strength as an intermediate layer to provide mechanical strength and dimensional stability for a guided bone regeneration membrane; utilizing silk fibroin to construct a porous layer, then adjusting the degradation behavior of the porous layer, the cellular affinity, and providing a growing space for extracellular matrixes and bone regeneration. The method employs crosslinking treatment to increase the integrity between different layers. With good bone regeneration capability, the multilayer functional membrane of the invention has a degradation rate and mechanical strength that match with the bone regeneration rate.

The invention discloses a DPF regeneration system capable of optimizing heat management and a control method, and relates to the technical field of diesel engine exhaust aftertreatment. A DPF system,an NTP system and a temperature control system are connected with a control system, the control system adjusts the work state of the systems according to the working condition information, when a diesel engine is shut down, the NTP valve is opened, NTP is sprayed into DPF, an active substance oxidizes the PM in the DPF, and the aim of regenerating DPF is achieved; in the running process of the diesel engine, through control of the control system over the temperature control system, the DPF system is cooled, the temperature of the DPF is reduced properly, when shutdown for regenerating DPF is carried out, a heat medium serves as a heat source, the regeneration process is stably carried out, through the temperature control system, in the diesel engine shutdown regeneration process, the temperature of the DPF is maintained within the suitable temperature range, and the aim of stably and efficiently regenerating DPF is achieved; and in the diesel engine running process, the temperature control system is used for cooling the DPF, the high-temperature impact of the exhaust temperature for the DFP is reduced, and the service life of the DPF is prolonged.

The invention relates to Issatchenkia orientalis and a method for producing citicoline by whole cell conversion of Issatchenkia orientalis, belonging to the technical field of biological pharmacy. In the method provided by the invention, the whole cells of Issatchenkia orientalis Z1, namely CCTCC (China Center for Type Culture Collection) NO: M2011272 are utilized to prepare citicoline, choline phosphate and 5'-cytidylic acid are used as substrates, glucose is used as an energy donor, and the ATP (adenosine triphosphate) regeneration efficiency is improved by adding inorganic ions; glucose is used as the energy donor, so that the energy requirement of the strain is provided and ATP is provided for a citicoline synthesis enzyme system; one or more of potassium ion, magnesium ion and manganese ion are added to change the metabolism flow direction and improve the ATP regeneration rate, so that the ATP regeneration rate is matched with the rate of the citicoline enzyme synthesis system and the high-efficiency preparation of citicoline is achieved; and the whole cells of Issatchenkia orientalis are used, and toluene is added to an aqueous solution during the preparation process so as to improve the cell permeability, so that the rate of the citicoline enzyme synthesis system is improved.

The invention relates to a smoke gas purification system with an integrated function of desulfuration, denitration and demercuration and a purification process, which are used for treating SOX, NOX and Hg in smoke gas and recycling sulphur and Hg in smoke gas. A uniform gas distribution plate and a flow guide plate are arranged at a smoke gas inlet in the middle of an adsorption tower, a contracting nozzle structure of a central flow collection pipe outlet in the lower section of the adsorption tower is connected with an NH3 inlet, and by the structure improvement, the adsorption tower has the advantages of uniform distribution and mixing of gas, and the smoke gas purification efficiency and the utilization rate of active coke are also improved. Due to a ring-shaped partition plate gas extracting structure of an active coke regeneration tower, no residue is formed in the tower when the regeneration tower desorbs gas; meanwhile, a mercury capturing device is arranged outside the active coke regeneration tower. The characteristic of low content of mercury in smoke gas is taken into account in the smoke gas purification process, active coke is designed for gathering Hg till Hg is saturated and then is regenerated by an acid washing method, and Hg is recycled or subjected to refilling. The smoke gas purification system has the advantages of simultaneous removal of various pollutants, good effect of uniformly distributing smoke gas and high utilization rates of heat energy and by-products, and complete gas exhaust of the regeneration tower is guaranteed.

The invention discloses novel technology for full cellular biosynthetic deoxyribonucleoside triphosphate, which takes deoxyribonucleoside monophosphate dNMP and phosphate anions as a substrate and saccharide as a power supplier, and uses permeable yeast cells for reaction in the presence of chemical effect substances to prepare the deoxyribonucleoside triphosphate. According to the technology, the theory of full cellular catalysis and metabolic engineering is used and the chemical effect substances are adopted to regulate and control a metabolic flow, so that a high effective power self-coupling and regeneration system is established, and high effective preparation of the deoxyribonucleoside triphosphate is finally realized. The novel technology for the full cellular biosynthetic deoxyribonucleoside triphosphate overcomes the disadvantages of the conventional production process of the deoxyribonucleoside triphosphate, and has the characteristics of simple process, high conversion, low cost and light pollution, and the like.

The invention relates to a complex iron desulfurization catalyst and a preparation method thereof, and belongs to the field of gas purification. The desulfurization catalyst comprises the raw materials in parts by weight: 2.5-9 parts of a complexing agent, 1.5-6 parts of an iron source, 0.01-1.5 parts of a modifier, 0.01-1.5 parts of a stabilizer and a pH regulator, wherein the iron source is selected from an iron-based bimetallic compound doped with a dissimilar metal element M, and M represents one or more of dissimilar metal elements Cu, Co and Ni. Harmful anion impurities do not need to beintroduced in the preparation process of the complex iron desulfurization catalyst, the problems of desulfurization equipment corrosion, high desulfurization wastewater treatment difficulty and the like are avoided, and the catalytic activity and desulfurization efficiency are improved through the synergistic effect between Fe and dissimilar metal M in the desulfurization catalyst; in the use process of the desulfurization catalyst, the removal efficiency of H2S can be kept at 99.5% or above, the loss rate of Fe in the desulfurization catalyst in the desulfurization process is low, and the stability of Fe is good.

The invention belongs to the field of combustion chemical industry and materials, and specifically discloses a catalytic oxygen carrier which is Ni<x>Fe<3-x>O<4>-Ca<2>Fe<y>Al<2-y>O<5>. The invention further discloses a method for applying the novel catalytic oxygen carrier to catalysis of both efficient cracking of methane to produce hydrogen and CO2 reduction. The novel catalytic oxygen carrier provided by the invention can be used for respectively regulating and controlling a reaction of methane catalytic cracking for hydrogen production and a CO2 reduction reaction based on chemical-loopingcirculation. The method comprises the following specific steps: (1) a methane cracking stage: catalyzing methane cracking under the condition of composite catalysis to realize high methane conversionrate and high hydrogen selectivity and to obtain a by-product, i.e., nanocarbon; and (2) a CO2 reduction stage: in the presence of the catalyst and the nanocarbon, realizing high carbon dioxide conversion rate and high carbon monoxide selectivity and realizing the regeneration of the catalytic oxygen carrier at the same time. The method realizes continuous and efficient production of high-purityH2 and emission reduction of CO2 gas.

The invention relates to an ammonia nitrogen efficient removal system and an ammonia nitrogen efficient removal method based on a side flow short-cut nitrification-anaerobic ammonia oxidation process.The ammonia nitrogen efficient removal system comprises an ammonia nitrogen adsorption unit, a heating regeneration unit and a regeneration liquid denitrification module, wherein the ammonia nitrogenadsorption unit comprises an ammonia nitrogen adsorption column (1) filled with an adsorption material, the heating regeneration unit comprises a regeneration liquid storage tank (2) and a regeneration liquid inlet pump (9), the regeneration liquid storage tank and the regeneration liquid inlet pump are connected in sequence, the regeneration liquid storage tank (2) is connected with the regeneration liquid inlet of the ammonia nitrogen adsorption column (1) through the regeneration liquid inlet pump (9), a regeneration liquid is heated in the regeneration liquid storage tank (2) through a sewage source heat pump (20), the regeneration liquid storage tank (2) is further connected with the ammonia nitrogen adsorption unit and recovers the regeneration liquid flowing out of the ammonia nitrogen adsorption column (1), and the regeneration liquid denitrification module is connected with the regeneration liquid storage tank (2) of the heating regeneration unit. Compared with the system andthe method in the prior art, the system and the method of the invention have the advantages of low cost, good effect and the like.

The invention belongs to the field of daily chemicals and relates to a grape seed extract and a skin care composition containing the grape seed extract. The skin care composition comprises the following components in percentage by weight (100% in total): 0.05-5% of grape seed extract, 1-12% of polyalcohol, 0.1-5% of betaine, 0.5-5% of beta-glucan, 0.05-0.6% of sodium hyaluronate, 0.2-4% of glycerol polyether, 0.5-3% of seabuckthorm seed oil, 0.1-2% of squalane, 0.5-3% of jojoba oil, 0.02-0.5% of sodium polystyrenesulfonate, 0.05-1% of thickening suspension agent, 0.2-10% of silicone oil, 2.5-4.5% of emulsifier, 0.02-0.2% of dipotassium glycyrrhizinate, 0.1-1% of D-panthenol, 0.1-2% of coenzyme Q10, 1-5% of nicotinamide and the balance being water. The skin care composition can effectivelyclear free radicals, helps skin to resist injuries of the free radicals and ultraviolet rays, resists bacteria and inflammation, is mild and anti-allergy, repairs injured cells, improves self-repair capacity of the cells, compensates water deeply, preserves moisture for a long term, promotes cell collagen synthesis, recovers cell elasticity, tightens the skin, delays senescence and resists and removes wrinkles.

The invention discloses a method and a device of simultaneously carrying out formaldehyde loaded activated carbon regeneration and desorbed gas quenching. Metal powder or a metal wire is placed in a regeneration device, and formaldehyde loaded activated carbon regeneration and desorbed gas quenching are realized simultaneously by utilizing microwave-induced metal discharge. The method and the device have two advantages that firstly, a heat effect of microwave-induced metal discharge: a great quantity of heat is released within a short time to enable the ambient temperature to rise at high speed, and the regeneration rate of activated carbon can be increased; and a plasma phenomenon: plasmas have the certain catalysis to chemical reaction, but are excited and generated by metal discharge, so that degradation and desorption of generated formaldehyde are accelerated, amorphous carbon is generated to be adhered to and deposited in the surface interface of the regenerative activated carbon, and modified activation action is exerted on the regenerative activated carbon; and secondly, from the angles of economy and the regeneration device, activated carbon regeneration and desorbed gas quenching are simultaneously carried out in the same device, the step of processing desorbed gas after regeneration is saved, and thus the regeneration cost is saved.

The invention relates to an efficient nitrogen recovery device and process for sewage. The device comprises an ammonia nitrogen ion exchange unit connected into a mainstream sewage treatment pipe, anda regenerated liquid storage tank connected with the ammonia nitrogen ion exchange unit through a regenerated liquid circulating pipe to form circulation, The regenerated liquid storage tank is alsosequentially connected with a magnesium removal sedimentation tank, a calcium removal sedimentation tank, a biological nitrification reactor, an electrodialysis module and an evaporation concentrationmodule, and the biological nitrification reactor is also connected with the regenerated liquid storage tank in a returning manner. Compared with the prior art, the process has the advantages that theregenerated liquid with high NH4 < + >- N concentration is subjected to nitrogen recovery, so that synchronous nitrogen emission reduction and nitrogen recovery of mainstream ammonia nitrogen ion exchange-regeneration enrichment-biological nitrification-electrodialysis concentration-evaporation crystallization are realized.

The invention discloses a method for strengthening regeneration of an organic phase after desulphurization and decarburization of a phase change absorber, and belongs to the gas purification technology. The organic phase from a separator passes through a standing wave acoustic field processor in a boiling device firstly, ultrasonic displacement effect, cavitation effect and resonance effect act on the organic phase, carbamate bonds in the organic phase are easily broken, organic amine and carbon dioxide are generated, the carbon dioxide is sent to a regenerated gas separator from the bottom of a regeneration tower, and the organic amine after regeneration returns to an absorption tower through a barren liquor pump and is absorbed. The displacement effect of ultrasonic waves can make the organic phase regenerated substances continuously move, collide and agglomerate to wave loops or wave sections; a strong impact force and a high-speed micro jet flow produced by the cavitation effect can reduce frictional resistance in the collision agglomeration and settlement processes of organic phase to-be-regenerated substances, and at the same time, the generated thermal effect can play an effect of reducing the viscosity.

The invention provides bionic antibacterial high-adhesion dual-network hydrogel and a preparation method and application thereof. The preparation method comprises the steps that oxidized and modifiedmucopolysaccharide, catechol modified polyamino acid, hydrogen peroxide and horseradish peroxidase are mixed in an aqueous solution and then left to stand, and the dual-network hydrogel is obtained inone step. The gel preparation method is simple, and the raw materials are cheap and easily available. The hydrogel is composed of double networks, the first-layer network is formed by cross-linking modified mucopolysaccharide and polyamino acid, and the second-layer network is formed by enzymatic cross-linking of catechol groups. The gel is high in forming speed and controllable in forming speedand has good adhesion performance and antibacterial performance. In addition, the gel also has good cell compatibility and biocompatibility. Mucopolysaccharide in the gel system can also promote tissue healing and increase the tissue regeneration rate. The hydrogel is a gel material with a good application prospect in the field of tissue engineering skin.

The invention discloses a compression boiling type regenerated solar energy dehumidification system, and belongs to the technical field of dehumidification and air conditioning equipment. The compression boiling type regenerated solar energy dehumidification system comprises a concentrated solution regenerated subsystem and a dehumidification subsystem; the concentrated solution regenerated subsystem comprises a dilute solution temperature-rising circuit, a concentrated solution regenerated circuit and a concentration cooling circuit; and the dehumidification subsystem comprises a solution circuit and an air circuit. According to the compression boiling type regenerated solar energy dehumidification system, a compression regenerated device can achieve high efficiency regeneration of high concentration dehumidification concentrated solutions through the repeatedly reciprocating motion of a piston on one hand, and can achieve the miniaturization of regeneration equipment and dehumidification equipment on the other hand. The compression boiling type regenerated solar energy dehumidification system can solve the disadvantage of unstable regeneration of the solutions caused by the discontinuity and the periodic change of solar energy, and low-grade regenerated solar energy can be fully used.

The invention discloses a desulphurization adsorbent regeneration method, and a sulfur containing hydrocarbon adsorption desulphurization method and a device. The desulphurization adsorbent regeneration method comprises following steps: S1, under coke condensation conditions, in the presence of gas stripping gas, coke on the surface of a reagent to be treated is subjected to condensation reactionso as to obtain a decoked reagent; S2, under regeneration conditions, the decoked reagent is contacted with a regeneration gas so as to obtain a regenerated reagent. According to the desulphurizationadsorbent regeneration method, regeneration pre-treatment of the reagent to be treated is adopted, the reagent is subjected to pre-treatment under coke condensation conditions, so that compounds suchas hydrogen gas and methane are generated via condensation reaction of coke on the surface of the reagent, hydrogen gas and methane are removed using gas stripping gas, the hydrogen content of the reagent is reduced, the amount of water generated in regeneration process is reduced, generation of zinc metasilicate in subsequent regeneration process is reduced effectively, the regenerated reagent activity and strength are improved at a certain degree, and adsorbent consumption is reduced.

The invention discloses a method for preparing a constructed wetland compound substrate containing modified waste bricks. The method comprises the following steps: crushing and screening the waste bricks or building blocks, respectively adding the waste bricks or building blocks into a sodium chloride solution or an aluminum chloride solution at room temperature, soaking, stirring, washing, filtering, and drying, so as to obtain a sodium-waste brick substrate and an aluminum-waste brick substrate; immobilizing nitrobacteria on the sodium-waste brick substrate, so as to obtain a biological sodium-waste brick substrate; finally, mixing or laying the biological Na-waste brick substrate, the Na-waste brick substrate, the Al-waste brick substrate and zeolite in a layered manner, so as to obtain the constructed wetland compound substrate containing modified waste bricks. According to the method disclosed by the invention, the waste bricks serve as main raw materials of a denitrification substrate, treatment of wastes with processes of wastes against one another is realized, the waste bricks are crushed and chemically modified, and the nitrobacteria can be immobilized, so that an effect of removing a main pollutant, nitrogen, in sewage by virtue of the waste bricks is enhanced, and nutrient substances and root extension carriers are provided for aquatic plants are provided. Moreover, a complementary synergistic effect exists among various modified waste brick substrates, and the capacity of treating the sewage by constructed wetland is greatly improved.

The invention discloses a complex iron desulfurizing agent for wet-oxidation hydrogen sulfide removal. The complex iron desulfurizing agent contains the following components: water-soluble ferrite, an inorganic base, a water-soluble cobalt salt, an organic complexing agent and water, wherein the weight percent of the iron ion is 0.5-6wt%; a molar ratio of the metal ions in the inorganic base to the iron ion is 0.8-1.2; a molar ratio of the cobalt ion to the iron ion is 0.01-0.1; a molar ratio of the organic complexing agent to the sum of mole numbers of the cobalt ion and the iron ion is 1.2-3.0; the components of the complex iron desulfurizing agent additionally include piperazine and polyethylene glycol; the weight percent of the piperazine and the mixture is 1-5wt%; and the weight percent of the polyethylene glycol and the mixture is 0.1-2wt%. The complex iron desulfurizing agent for wet-oxidation hydrogen sulfide removal, disclosed by the invention, achieves the effects of enhancing the oxygen utilization rate in the regeneration process, reducing the air amount, improving the regeneration rate and reducing the fan energy consumption in the regeneration process and is low in cost.

The invention discloses a DPF regeneration system and a control method for optimizing thermal management, and relates to the technical field of post-treatment of diesel engine exhaust. Adjust the working state of the diesel engine; open the NTP valve when the diesel engine is stopped, inject NTP into the DPF, and the active material oxidizes the PM in the DPF to achieve the purpose of regenerating the DPF; during the operation of the diesel engine, the temperature control system is controlled by the control system. The DPF system is cooled, and the temperature of the DPF is appropriately reduced; when the DPF is shut down to regenerate, the heat medium is used as a heat source, so that the regeneration process proceeds smoothly. By using the temperature control system, the temperature of the DPF can be maintained in an appropriate temperature range during the regeneration process of the diesel engine, so as to achieve the purpose of regenerating the DPF smoothly and efficiently; The high-temperature impact of the exhaust gas temperature on the DPF prolongs the service life of the DPF.

The invention provides a regeneration method of active carbon. The regeneration method comprises the following steps that collection and arrangement are carried out on used active carbon; water is introduced into a water-molecule heat-energy generation device to obtain high-temperature gaseous water-molecule heat energy with the high enthalpy value; the outputted gaseous water-molecule heat energyis directly introduced into the collected and arranged active carbon, the high-temperature gaseous water-molecule heat energy can react with organic-matter impurities in the active carbon, and then the organic-matter impurities can be decomposed by heat to form steam, carbon dioxide, carbon black and other foreign gases, so that the active carbon is regenerated. The regeneration method provided by the invention has the advantages that the impurities in the active carbon can be effectively cleared by the formed high-temperature gaseous water-molecule heat energy under normal pressure so as toachieve the purpose of active-carbon regeneration; the principle is reliable, the process is simple and the carbon loss is less. The invention also provides a device for realizing the regeneration method of the active carbon. The device has the advantages of simple whole structure, convenience in use, more miniaturization, lower cost and wide application range.

The invention discloses an active carbon regeneration treatment method, and belongs to the field of environment protection. Some organic matters in rest sludge are mainly adsorbed from adsorption saturated active carbon; through enzymolysis, some active substances are extracted from the organic matters; useful resources can be recovered; the enzyme activity can be improved through the microbe decomposition; the generation of new active substances is stimulated, so that the organic matters in the rest sludge can be decomposed in an accelerated way; the regeneration speed of the active carbon isimproved. The active carbon regeneration treatment method solves the problems that the existing active carbon regeneration treatment time is long; the regeneration efficiency is low; the resource waste is caused by waste active carbon.

The invention discloses a method for prolonging catalyst use period in a hydrocarbon polymerization aromatization technique. The method comprises the following steps: sending a C4 raw material into a polymerization reactor, and reacting under the action of an acidic catalyst to generate aromatic hydrocarbons and liquefied gas. The method is characterized by adding methanol into the polymerization reactor. The modified raw material and methanol are mixed and fed, and the methanol reaction product is weakly acidic, so the neutralization between acid and alkali releases heat. The weak alkalinity of the raw material is neutralized, thereby solving the problem of catalyst poisoning, prolonging the catalyst use period, and saving the operating cost. The methanol reaction generates water vapor, thereby protecting the catalyst activity center, and enhancing the product yield. The modification prolongs the catalyst use period, increases the regeneration rate, avoids catalyst poisoning and inactivatation, and protects the catalyst. The method only needs to prepare the methanol feed line, and thus, is low in investment cost and simple to operate; and meanwhile, the method ensures the system safety and stability, and provides guarantees for long-term operation.

The invention provides a regenerating device of a natural gas sulfur recovering and complexing ion catalyst. The device comprises a tank body, an electrode plate, a liquid inlet, a gas inlet and a liquid outlet, wherein the tank body is provided with a regeneration reaction cavity, the electrode plate comprises a cathode plate and an anode plate, the liquid inlet is formed in the tank body, communicated with the reaction cavity and located at the upstream portion of the electrode plate, the gas inlet is formed in the tank body, communicated with the reaction cavity and located on the side, away from the electrode plate, of the liquid inlet, the liquid outlet is formed in the tank body, communicated with the reaction cavity and located at the downstream portion of the electrode plate. The scale of the regenerating device of the natural gas sulfur recovering and complexing ion catalyst based on the electrochemical principle is effectively reduced; especially, the regenerating device of the tank body structure can be applied to a natural gas sulfur recovering device under the floating type conditions, the regeneration rate of the complexing ion catalyst can be effectively increased, the consumption of the catalyst is reduced, and the scale of the device is effectively reduced.

The invention discloses a method for regenerating water glass sand by using calcium carbide slag, which belongs to the technical field of casting waste sand regeneration and includes water glass casting waste sand, calcium carbide slag clear liquid and carbide slag raw materials. The regeneration method specifically includes preparing calcium carbide slag powder, Water glass casting waste sand broken screen, magnetic separation, soaking, regeneration, dehydration, washing, drying and other steps. In the present invention, the calcium carbide slag and the calcium carbide slag clear liquid, which are wastes discharged from the preparation of acetylene, are used to efficiently regenerate the water glass sand, and the chemical reaction between the calcium carbide slag and the water glass is used to complete the regeneration of the water glass sand at the same time without consuming fresh water resources. While saving resources, the existing waste industrial products are recycled, and because the regeneration process is a physical and chemical synergistic reaction, the regeneration speed is higher than that of fresh water, and the energy consumption is lower, creating good economic benefits.