195results about How to "Reduce processing energy consumption" patented technology

The preparation method comprises the following steps: mixing polysaccharide gum with water, carrying out wet ultrafine grinding to obtain an ultrafine polysaccharide gum aqueous solution, and uniformly infiltrating the polysaccharide gum into cellulose or derivatives thereof by adopting high-shear mixing to form micelles; and promoting the micelles to form a honeycomb structure through microwave vacuum drying, and finally spraying ultrapure water atomized by high pressure to the honeycomb micelles and drying to obtain the hydrogel for absorbing grease. The water absorption capacity of the prepared hydrogel reaches 100 times or above, the storage modulus is 1350 Pa or above, grease can be efficiently absorbed, and the hydrogel has wide development prospects in the field of weight-reducing medicine or food.

The invention belongs to the technical field of slag metallurgy, and relates to a coprocessing method for copper smelting slag and zinc leaching slag, which comprises the following steps: S1, mixing the copper smelting slag, the zinc leaching slag, a vulcanizing agent and a flux to obtain a mixture; introducing a mixture of pulverized coal and air, and reacting at 1150-1300 DEG C for 2-4 hours to obtain a gas phase, a slag phase and matte; s2, the gas phase is subjected to dust removal, and zinc oxide smoke dust rich in zinc, lead and silver is obtained; zinc is leached from the zinc oxide smoke dust through a wet method; and S3, the slag phase is subjected to slow cooling, ore grinding and copper flotation, copper concentrate is obtained, and gold, silver and copper elements are recycled. According to the method, heat of the high-zinc hot-state copper smelting slag is used for processing the high-copper normal-temperature zinc hydrometallurgy slag, and the slag processing energy consumption of the zinc hydrometallurgy slag is reduced. Through mixing treatment, lead and zinc in the mixed slag enter the secondary zinc oxide smoke dust to be recovered, and the recovery rate of the lead and the recovery rate of the zinc both reach 80% or above; and the total recovery rate of copper in the mixed slag is greater than 85% after copper enters matte recovery.

The invention relates to the field of ship transportation, and discloses a device for liquefying boil-off gas of an LNG cabin and a liquid ammonia cabin through ship liquid hydrogen cold energy. The device comprises a cold box heat exchanger, wherein a liquid hydrogen cabin and an LNG tank / liquid ammonia cabin are both communicated with the cold box heat exchanger; a liquid hydrogen boil-off gas circulation passage is arranged between the cold box heat exchanger and the liquid hydrogen cabin, and liquid hydrogen boil-off gas flows into the cold box heat exchanger from the liquid hydrogen cabin through the passage; an LNG / liquid ammonia boil-off gas circulation passage is arranged between the cold box heat exchanger and the LNG tank / liquid ammonia cabin, and LNG / liquid ammonia boil-off gas flows into the cold box heat exchanger from the LNG tank / liquid ammonia cabin through the passage; an LNG / liquid ammonia circulation channel is further arranged between the cold box heat exchanger and the LNG tank / liquid ammonia cabin, and LNG / liquid ammonia flows into the cold box heat exchanger from the LNG tank / liquid ammonia cabin through the channel. According to the device, effective utilization of the cold energy of the hydrogen evaporation gas is achieved, and the energy consumption in the LNG or liquid ammonia evaporation gas cooling and liquefying process is further reduced.

The utility model provides a circulating oxygen control enhanced biochemical sewage treatment system. The circulating type oxygen control enhanced biochemical sewage treatment system comprises a pool body, a mixing area, a screening area, an enhanced biochemical area, a selection area, a circulating area, a mud-water separation area and a backflow area are sequentially arranged in the pool body in a communicating mode, and a sewage inlet is formed in the mixing area. The screening area, the enhanced biochemical area and the selection area are respectively provided with an aeration device and a dissolved oxygen meter to control the dissolved oxygen concentration, the circulation area is provided with an air lifting and pushing device, the sludge-water separation area is provided with a filler layer, a water outlet and a sludge outlet, the sludge outlet is communicated with the backflow area, and the backflow area is communicated with the mixing area to enable at least part of sludge to flow back to the mixing area. The system disclosed by the utility model can be used for removing different pollutants in the same pool body and in the same microbial environment, and has the advantages of shortening the treatment flow, improving the treatment effect, saving the operation cost and the like.

The invention discloses a quick self-cleaning fish bucket culture pond which comprises a fish bucket pond, the fish bucket pond comprises a cylindrical bucket body and an inverted-cone-shaped bucket bottom, a sewage discharge pipe is arranged at the bottom of the inverted-cone-shaped bucket bottom, a water discharge pipe is arranged on the lower portion of the cylindrical bucket body, and a plurality of water pushing pipes are arranged on the outer side of the fish bucket pond. The bottom of the water pushing pipe is connected with an external water inlet pipe, a sewage draining siphon device is arranged in the middle of the fish barrel pool, and an opening is formed in the center of the bottom of the inverted-cone-shaped barrel bottom. Through the design of the cylindrical-conical combined working area of the fish bucket culture pond, the water pushing pipe and the pollution discharge siphon device of the fish bucket pond, fish excrement and residual feed can be quickly sucked, discharged and separated from culture water, and conversion of solid organic pollutants into water-soluble pollutants in the water is greatly reduced; meanwhile, a culture area and a pollutant precipitation and solid-liquid separation area generated in culture are combined into a whole, so that the construction space and the construction cost are greatly saved.

The invention discloses a rotational flow pyrolysis device and method, activated sludge particles are blown into a rotational flow pyrolyzer through carrier gas nitrogen, the rotational flow pyrolyzer is heated through a pyrolyzing furnace, the pyrolyzing temperature is controlled to be 600-1000 DEG C, the pyrolyzing time is 1.5-2 h, the pyrolyzing time is 2-3 h, and the pyrolyzing time is 2-3 h; the gas inlet speed of nitrogen is adjusted, so that the sludge particles can keep suspended motion in the rotational flow pyrolyzer, and self-revolution-suspension recycling coupling pyrolysis of the particles is realized at the same time; after pyrolysis is completed, the flow rate of nitrogen is adjusted, and solid products, pyrolysis gas and tar are subjected to cyclone separation in the cyclone pyrolyzer and then discharged out of the cyclone pyrolyzer to be collected; according to the rotational flow pyrolysis device and method, sufficient and efficient pyrolysis of sludge particles can be achieved, the process energy consumption is low, and sludge activated carbon with high adsorbability and pure pyrolysis gas and tar can be obtained.

The invention provides a novel dynamic reverse osmosis and nanofiltration ultrahigh concentration system and a method thereof. The novel dynamic reverse osmosis and nanofiltration ultrahigh concentration system comprises a first pump, a reverse osmosis system, a first three-way valve, a second three-way valve, a third three-way valve, a piston assembly, a nanofiltration system, a first circulating pump and a second circulating pump. A plurality of circulation loops are formed through cooperation of the structures, the brine concentration can be increased to 250 g / L or above under the working condition that the operation pressure does not exceed 70 bar, meanwhile, the data are monitored through an electrical and automatic control system, information such as the operation pressure, the flushing flow and the flushing time are optimized and fed back, real-time adjustment is conducted, and the brine concentration can be increased to be larger than 250 g / L. The energy consumption and the cost of high-salinity wastewater treatment are remarkably reduced, the membrane pollution condition is relieved, and the method has an important application prospect.

A method for pretreating lignocellulose is provided, which is to add ethylenediamine and sodium carbonate solution to straw and pretreat at 75-85°C for 2-6 hours. The invention belongs to a raw material cellulose separation technology, which promotes efficient degradation of lignin in the straw by pretreating the straw at medium temperature and normal pressure with ethylenediamine and sodium carbonate, effectively separates cellulose from the raw material, increases the accessibility of cellulose to cellulase, hemicellulase, etc., thereby improving the enzymatic hydrolysis efficiency of the straw, and the glucose yield is increased to 92.57%. In addition, the pretreatment is carried out at medium temperature and normal pressure, which reduces environmental pollution, reduces processing energy consumption, and simplifies processing steps.

The invention discloses a low-temperature regeneration method of a diesel oil adsorbent. The method comprises the following steps: S1, purging a diesel oil raw material in a bed at a low temperature by adopting nitrogen; s2, carrying out low-temperature solvent washing regeneration on the inactivated diesel oil adsorbent in the bed layer by adopting a liquid-phase composite solvent; s3, carrying out low-temperature purging on the bed layer by adopting nitrogen, and removing the liquid-phase composite solvent in gaps of the bed layer; s4, carrying out high-temperature purging on the bed layer by adopting nitrogen, and removing the liquid-phase composite solvent in the inactivated diesel oil adsorbent; and S5, carrying out low-temperature purging on the bed layer by adopting nitrogen, reducing the temperature of the bed layer to an adsorption temperature, and completing the steps of adsorbent regeneration and the like. The process flow is simple, the adsorption performance reduction amplitude after regeneration is low, and the regeneration stability is high.

The invention relates to a carbonaceous reducing agent pellet with low-order non-caking coal as a main body and application, and belongs to the technical field of efficient and clean utilization of resources. The carbonaceous reducing agent pellets are mainly prepared from low-order non-caking coal as a main body, the main body is matched with a composite organic binder, silica fume and a reinforcing agent, the mixture is subjected to compression molding and then placed in a sintering furnace to be roasted at the temperature of 450-650 DEG C in a protective atmosphere, and furnace cooling is conducted till the carbonaceous reducing agent pellets are obtained. The pellet developed by the invention has the characteristics of high fixed carbon content, high pellet strength, high breakage resistance, good static spheroidization index, low content of introduced impurities and high reaction activity, so that the pellet is particularly suitable for industrial silicon smelting. The low-order non-caking coal is applied in a large proportion, the micro-silicon powder produced by the submerged arc furnace is recycled, and the method is clean and environment-friendly, can be completely used for smelting and production of industrial silicon, reduces smelting unit consumption and production cost, and can replace or partially replace charcoal to become a carbonaceous reducing agent for smelting of industrial silicon.

The invention belongs to the technical field of organic wastewater treatment, and particularly relates to an electro-Fenton technology based on ion exchange resin and application. The graphite felt is etched at a high temperature by adopting a transition metal oxide to prepare an efficient cathode material; ion exchange resin is used as a solid electrolyte to replace a traditional liquid electrolyte, a novel electro-Fenton technology is constructed to eliminate secondary pollution caused by the liquid electrolyte, and a conductive material is loaded on the surface of the ion exchange resin to improve the conductivity and reduce the wastewater treatment energy consumption. The electro-Fenton technology has the advantages of good treatment effect, no secondary pollution, wide pH application range, simple process, recyclability and environmental friendliness, and has a wide application prospect in the field of organic wastewater treatment.

The invention belongs to the technical field of electronic waste recycling, and particularly relates to a method for preparing a nickel-cobalt-manganese precursor by utilizing straw and lithium ion battery current collector aluminum reduction ternary positive electrode powder. The method comprises the following steps: sequentially discharging, disassembling and crushing the waste lithium ion battery to obtain waste lithium ion battery positive electrode powder; straw is crushed and screened, and straw powder is obtained; the method comprises the following steps: mixing waste lithium ion battery positive electrode powder with straw powder, carrying out thermochemical treatment, recovering filtrate and filter residues from roasted powder by a carbonic acid water leaching method, drying the filtrate to obtain a Li2CO3 product, and carrying out alkaline leaching treatment on the filter residues to obtain a nickel-cobalt-manganese precursor; the lithium ion battery anode current collector aluminum and the straw pyrolysis product are used as the reducing agent, the dosage of the reducing agent needing to be added is greatly reduced, roasting can be completed at the low temperature, the energy consumption in the treatment process is small, and the recycling method is environmentally friendly, economical, efficient, simple in process and suitable for industrial production. The industrial application requirements of the waste lithium ion battery positive electrode material recycling industry are met.

The present application relates to a kind of compositions and applications comprising polyamide.The composition includes polyamide and sheet structure mineral powder, wherein, with 100 mass parts of polyamide, sheet structure mineral powder in the composition is 0.1-10 mass parts.The polyamide material in the present application has lightweight, easy processing, has cost advantage, compared with steel material has obvious advantage.Sheet structure mineral powder is added in polyamide material by intercalation modification, further improve the barrier property of product, effectively avoid "hydrogen embrittlement" risk, with "hydrogen embrittlement" resistance, low hydrogen permeability, and suitable for the temperature range of application, it has high toughness in low temperature environment condition, the performance of polyamide material reaches a good balance, and the comprehensive performance is better.Suitable for hydrogen pipeline, hydrogen storage bottle etc., has advantage in hydrogen energy automobile and other application scenarios.

The invention discloses a process and system for preparing sulfur from decomposed gas with a recyclable hydrogen sulfide adsorbent, comprising the steps of heating and decomposing a saturated hydrogen sulfide adsorbent with sulfur-free clean coal gas to obtain decomposed gas; heating the decomposed gas and performing a COS conversion reaction to generate hydrogen sulfide gas; oxidizing and heating a portion of the obtained hydrogen sulfide gas in sequence, and performing a catalytic reaction with another portion of the remaining gas; cooling the gas after the reaction, condensing sulfur vapor into powder crystals, and collecting the condensed sulfur vapor to obtain sulfur; the system comprises a heat storage device, a COS conversion tower, and an H 2 S oxidation tower, heating device, SO 2 Conversion tower and sulfur collection tower. The present invention uses a small amount of sulfur-free purified coal gas to analyze the hydrogen sulfide adsorbent, and the obtained analytical gas is processed in sections and concentratedly to obtain sulfur and collect it, effectively reducing the gas volume of blast furnace gas source desulfurization treatment and effectively improving the sulfur yield.

This invention discloses a method and system for treating landfill leachate stock, belonging to the field of wastewater treatment technology. The method includes the following steps: first, adding an appropriate amount of acid to the landfill leachate and stirring until homogeneous to obtain an acidic solution with a pH value below 1.5; then, adding silicate cement to the acidic solution in one go or in small amounts multiple times, mixing thoroughly, and allowing it to settle until solids precipitate before discharging the liquid to the external environment or transporting it to the next process. The total amount of silicate cement added is 6%-10% of the mass of the acidic solution. This method can simultaneously treat TP, TN, and NH3 in landfill leachate. 3 Removal of -N and COD, TP, TN, NH 3 The removal rate of nitrogen (-N) can reach over 75%, and the COD removal rate can reach over 30%. The levels of recalcitrant organic macromolecules and benzene ring compounds are significantly reduced. The organic matter in the water sample is reduced, and the molecular structures are simpler and smaller, which is beneficial for biological decomposition and utilization. The system has a simple structure, is easy to use, and significantly reduces water treatment costs.

The utility model relates to a drinking water defluorination device and drinking water purification equipment, the drinking water defluorination device comprises a reaction container, a reaction part and an ultrasonic reactor, drinking water to be treated is introduced into a containing cavity through a water inlet end, and the reaction part is used for defluorination of the drinking water under the power-on condition. The electric flocculation reaction is carried out on the to-be-treated drinking water in the containing cavity, floccules float to the water surface in the reaction process, the treated drinking water is located below the floccules and then acts on the reaction part through the ultrasonic reactor, so that the floccules on the reaction part fall off, the surface of the reaction part can be effectively cleaned, and the service life of the reaction part is prolonged. By introducing the electric flocculation method, the process energy consumption is reduced, and meanwhile, passivation of reaction parts can be effectively prevented through the ultrasonic reactor, and the reaction rate is increased.

The invention relates to a preparation method of a sulfur-containing full-formula wet-process mixed rubber composite material. The preparation method comprises the following steps: firstly, preparing silicon dioxide coated sulfur (SiO2 coated S) by adopting a liquid-phase synthesis method, and carrying out spray drying to obtain powder of the silicon dioxide coated sulfur; and preparing the SiO2 (at) S, other reinforcing fillers and various rubber additives into dispersion liquid by adopting a wet mixing process, mixing the dispersion liquid with latex, flocculating, and drying to obtain the SiO2 (at) S full-formula wet mixing rubber composite material. Nano silicon dioxide is coated on the surface of sulfur through liquid phase in-situ growth, and then spray drying is carried out, so that the particle size of powder is effectively controlled, and agglomeration is reduced. The coating of the silicon dioxide is beneficial to improving the stability of the sulfur-containing full-formula wet-process rubber compound in the subsequent high-temperature drying process, and the prevulcanization phenomenon of the sulfur-containing full-formula wet-process rubber compound is avoided; various assistants and fillers are subjected to liquid-phase mixing in advance and then are mixed with rubber latex for flocculent precipitation or are mixed with a rubber solution for solvent evaporation, so that the dispersity of the fillers and the assistants is improved, the mixing loss is reduced, the loss in the addition process of the rubber assistants is reduced, and the comprehensive performance of rubber is enhanced.

The invention discloses a wheel forging and rolling composite forming process based on deformation distribution and a structure regulation and control method, and belongs to the technical field of wheel manufacturing. The method comprises the steps that a composite forming path of pre-forging, finish forging and finish rolling is adopted, the deformation amount of each procedure is scientifically distributed, pre-forging accounts for 70%-80%, finish forging accounts for 15%-20%, and finish rolling accounts for 5%-10%, so that forming precision and microstructure control is achieved. Meanwhile, quantitative prediction is carried out on microstructure evolution in the whole forming process by constructing a multi-scale digital simulation platform integrating a material constitutive model, a microstructure evolution model and a cellular automaton. And based on a prediction result, active and accurate regulation and control of microstructures of different parts of the wheel are realized through virtual iteration optimization of key process parameters such as temperature, deformation and strain rate, and finally, the complex-structure wheel with high dimensional precision, uniform and fine structure and excellent comprehensive performance is obtained. According to the wheel shape-character collaborative manufacturing method, shape-character collaborative manufacturing of the wheel is achieved, and the scientificity and efficiency of process design are improved.

The present application relates to the field of coking, synthetic ammonia and the like containing ammonia wastewater treatment, and discloses a novel ammonia evaporation energy-saving process system, a primary ammonia evaporation tower, an intermediate pressurizing pump set, a water flow regulating device, a secondary ammonia evaporation device, a flash tank, a steam ejector, a pressurizing pump set and a control unit. After the ammonia-containing wastewater is preliminarily treated by the primary ammonia evaporation tower, it is delivered to the secondary ammonia evaporation device by the pressurizing pump, and introduced into new steam for secondary ammonia evaporation. After the secondary ammonia evaporation, the wastewater flows into the flash tank to produce flash steam by cooling and pressure reduction, and the flash steam is pressurized by mixing with the new steam through the steam ejector, and then returns to the primary ammonia evaporation tower or the secondary ammonia evaporation device, so that the steam is recycled multiple times. The system can effectively reduce the new steam consumption by 35-45% under the premise of ensuring the stability of the ammonia nitrogen index of the effluent, improve the energy utilization rate, reduce carbon emissions, and is suitable for direct ammonia evaporation and indirect ammonia evaporation systems.

The application discloses a method for purifying 2',4'-dichloro-5'-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)methyl sulfonaniline (i.e. a crystal form of mesosulfuron) and a new crystal form obtained by the method; the method for purifying mesosulfuron crystal form of the application adopts an ester organic solvent to treat a product wet material obtained by the prior art, then the obtained product is subjected to stage heating and cooling operation, and the target crystal form is obtained by crystallization. The crystal form obtained by the application has low toluene residue, high purity, simple process, low cost and is particularly suitable for subsequent preparation processing.

This invention discloses an environmentally friendly plasticizer using modified lignin as a carrier, a rubber composition, and a method for preparing the same, relating to the field of rubber processing technology. The environmentally friendly plasticizer using modified lignin as a carrier, by weight, comprises the following components: 50 parts modified lignin, 25 parts plasticizing active ingredient, 8 parts dispersant, 5 parts anti-aging agent, and 3 parts stabilizer. The modified lignin is a lignin oligomer containing ester, acetyl, and ether cross-linked structures, with a weight-average molecular weight of 800-1200 Da, a dispersion coefficient ≤1.5, and a carboxyl content ≤0.2 mmol / g. This invention successfully overcomes the technical defects of existing plasticizer carriers, such as high toxicity, difficulty in degradation, and poor compatibility with polymer matrices, providing an environmentally friendly plasticizer using modified lignin as a carrier. This technical solution achieves the dual goals of high-value utilization of lignin and greening of the plasticizer product.

The invention relates to a method for one-step synthesis of high-quality stannous oxide through intermittent ultrasonic reinforcement, and belongs to the technical field of semiconductor material preparation. The preparation method comprises the following steps: dropwise adding a sodium hydroxide aqueous solution into a stannous chloride aqueous solution at room temperature under a stirring condition until the pH value is 12.5-13.5 to form a mixed solution system; applying intermittent ultrasonic waves to the mixed solution system for intermittent ultrasonic treatment to induce direct nucleation and growth of stannous oxide and synchronous removal of chlorine impurities, carrying out solid-liquid separation, and drying the solid to obtain the low-chlorine fine-particle-size stannous oxide. According to the method, through the work-stop periodic effect of intermittent ultrasound, dynamic conditions are provided for diffusion and desorption of chloride ions while nucleation and growth regulation are promoted through cavitation, cooperative regulation of particle size refinement and deep dechlorination of stannous oxide is achieved, a high-temperature step or repeated washing is not needed, the process is simple and efficient, the conditions are mild, and the method is suitable for industrial production. And controllable preparation of the high-performance stannous oxide material can be realized.

The present application belongs to the technical field of instant meat product processing, and discloses an instant ham and a preparation method. The method comprises low-salt pickling and semi-mature fermentation, high-temperature three-gradient fermentation after slicing and addition of probiotics, and the combination of vacuum temperature-changing fermentation ripening and bacteriostatic process, and processes the instant ham which is quickly fermented and matured, reduces the content of salt, inhibits the growth of rancidity and harmful bacteria, and is convenient to eat after opening the bag. The present application first proposes that the meat product after rapid fermentation is vacuum packaged and then subjected to special vacuum high-temperature fermentation ripening and bacteriostatic treatment at a high temperature of 49-52 DEG C. The process can not only significantly shorten the fermentation time to about 110-120 minutes, but also basically kill the non-sporulated vegetative microorganism cells in the vacuum-packaged ham, while allowing the probiotics to be retained to a certain extent and avoiding the pollution of microorganisms and other harmful substances thereafter. The "fast, low-salt, flavor, instant" ham product prepared by the present application technology cannot be realized by the existing ham fermentation technology.

The invention discloses a method for green and efficient production of a DRI product, which comprises the following steps: making iron-containing dust of an iron and steel plant into pellets, drying the pellets, then carrying out reduction roasting through a rotary hearth furnace to obtain the DRI product, separating the DRI pellets and DRI powder in the rotary hearth furnace through high-temperature screening, carrying out high-temperature pressing on screen underflow to improve the utilization value, and then carrying out product cooling and sensible heat recovery to obtain the DRI product. And the problems of high production energy consumption, high product pulverization rate and the like when the rotary hearth furnace is used for treating the iron and zinc-containing dust sludge in the steel plant are solved.

The application belongs to the field of engineering plastics, and particularly relates to long-chain polyamide resin with easy processing and high tensile property, and a preparation method and application thereof. The long-chain polyamide resin comprises the following raw material components: component a: aliphatic carboxylic acid compound component; component b: polyamine compound component; and component c: a compound with a structure shown in the following formula (1), wherein n and m can be any number between 1 and 10. The long-chain polyamide resin of the application introduces structural diacid with an asymmetric benzene ring structure, utilizes the asymmetric structure to reduce the crystallinity of the material, and introduces the benzene ring structure to improve the mechanical property of the polyamide material, so that the low processing temperature is realized from the polyamide material component itself, the energy consumption is reduced, and the mechanical property of the polyamide material is ensured. The problem that the processing temperature and mechanical property of the polyamide material and the processing energy consumption are difficult to be considered in the prior art is solved.

The invention relates to the technical field, and provides a phenolic resin / sucrose-based hard carbon material preparation method and material.The phenolic resin / sucrose-based hard carbon material preparation method comprises the steps that phenolic resin and N, N-dimethylformamide are adopted according to the proportion to prepare a solution A, sucrose, hexamethylenetetramine and deionized water are adopted according to the proportion to prepare a solution B, and the solution B is prepared into a phenolic resin / sucrose-based hard carbon material; adding the solution B into the solution A according to the proportion to prepare a phenolic resin / sucrose-based hard carbon precursor solution; placing the prepared phenolic resin / sucrose-based hard carbon precursor solution in a reaction kettle for solvothermal reaction, and cleaning and drying a solvothermal reaction product to prepare a phenolic resin / sucrose-based hard carbon precursor; grinding the prepared phenolic resin / sucrose-based hard carbon precursor, carrying out pre-oxidation treatment on a grinding product, and carrying out carbonization treatment on a product subjected to the pre-oxidation treatment, so as to prepare the phenolic resin / sucrose-based hard carbon material. The phenolic resin / sucrose-based hard carbon material with stable structure and excellent electrochemical performance can be efficiently prepared at low cost.

The invention relates to a method for preparing synthesis gas by reforming methane and carbon dioxide, which comprises the following steps: feeding a hydrogen production raw material into a hydrodesulfurization reactor after first temperature rise, mixing the obtained desulfurized hydrogen production raw material with water vapor, then performing second temperature rise, and then feeding into a radiation unit of a hydrogen production converter for conversion reaction to obtain crude synthesis gas; the method comprises the following steps: feeding a mixed raw material obtained by mixing carbon dioxide and methane into a dry reforming reactor through a raw material inlet to be in contact with a reforming catalyst, performing catalytic reforming reaction, and obtaining reformed crude synthesis gas from a product outlet of the dry reforming reactor; and feeding the crude synthesis gas into a dry reforming reactor. According to the method, the high-temperature synthesis gas at the outlet of the hydrogen production reformer is used as a reaction heat source of the reforming reaction, the energy consumption of the preparation process is low, high-temperature steam is hardly generated in the preparation process, near-zero emission of carbon dioxide can be realized, meanwhile, the heat utilization efficiency of the hydrogen production reformer can be obviously improved, and energy expansion and efficiency improvement of a hydrogen production device are realized.

The invention discloses a preparation method of high-purity iron, which comprises the following steps: dissolving and analyzing pure ferrite by using pure water, and adjusting the pH value to obtain electrolyte; carrying out at least two-stage precise filtration on the electrolyte; carrying out surface treatment on the electrolytic anode; and an anode, a cathode and an electrolyte are used for pre-electrolysis and electrolysis in sequence, and the high-purity iron is obtained. According to the preparation method, the high-purity iron with the purity of 4N-5N can be prepared, the preparation process is simple, the process energy consumption is low, and the preparation method is suitable for industrial production.

The application belongs to the technical field of MAX phase material preparation, and particularly relates to a method for preparing MAX phase material based on natural metal minerals. The method comprises the following steps: mixing natural metal mineral powder, aluminum powder and graphite powder, and then ball milling to obtain activated precursor powder; pressing the activated precursor powder into a dense blank, and synthesizing a block material through self-propagating high-temperature reaction; crushing the block material and sieving to obtain a MAX phase powder material, wherein the natural metal mineral is rutile and / or chromite; and the general formula of the MAX phase powder material is (Ti 1‑x Cr x ) n+1 AlC n , wherein 0<=x<=1, and n is 1 or 2. The method is different from the prior art in reaction principle, realizes cost reduction and greenization of the whole chain of raw materials, synthesis and etching, and solves the problem of mineral impurities by using the instantaneous high-temperature characteristics of SHS.

The invention relates to the technical field of sewage treatment and biological energy, and particularly discloses a method for converting sewage into biofuel for power generation. According to the method, a multi-factor synergistic system containing an inducing factor, a phagocytosis factor and a powdered sugar factor is generated through photosynthetic induction, the inducing factor destroys harmful microorganisms, the phagocytosis factor fixes radioactive substances, germs and viruses, and the powdered sugar factor serves as a carbon value locking precursor; organic pollutants are directionally converted into alcohol clean energy carriers by utilizing a multi-factor synergistic system, and meanwhile, fixed capture of the pollutants is completed; the carbon value is locked by a carbon value locking agent to generate a fixed carbon mixture, and the fixed carbon mixture is dehydrated and dried to obtain the high-purity biochar fuel. Unification of harmless treatment and energy utilization of the radioactive sewage is realized, and the limitation that the radioactive sewage cannot be treated in the traditional technology is broken through.