128 results about "Carbon product" patented technology

The utility model discloses carbon product mixing and kneading equipment with an asphalt spraying device. The carbon product mixing and kneading equipment comprises a shell, the asphalt spraying device and a uniform mixing device, the uniform mixing device comprises a first transmission shaft, a second transmission shaft and a stirring assembly; the first transmission shaft and the second transmission shaft are axially and rotatably arranged in the shell, the first transmission shaft is located over the second transmission shaft, the stirring assemblies are axially arranged on the first transmission shaft and the second transmission shaft at equal intervals, and the stirring assemblies on the first transmission shaft and the second transmission shaft are arranged in a staggered mode. The asphalt spraying device comprises an asphalt conveying pipe and a material distributing pipe; the asphalt conveying pipe is arranged below the second transmission shaft, the material distributing pipes are arranged at equal intervals in the axial direction of the first transmission shaft, the material distributing pipes are communicated with the asphalt conveying pipe, and discharging holes are formed in the material distributing pipes. According to the asphalt mixing device, asphalt is injected from the inside of a raw material through the material distribution pipe, and then the first transmission shaft and the second transmission shaft are matched to drive the stirring assembly to stir, so that the asphalt is mixed with the raw material from inside to outside, and the asphalt and the raw material can be uniformly mixed within a short time.

The invention belongs to the field of carbon product production, and particularly relates to special graphite for ion implantation and a preparation method thereof, and the special graphite is composed of aggregate coke, an additive and a binder; the aggregate coke comprises at least one of low-ash petroleum coke, pitch coke, pitch coke green coke, needle coke and artificial high-purity graphite, the ash content is not higher than 0.2%, the water content is not higher than 0.02%, and the prepared special graphite for ion implantation has excellent comprehensive performance indexes. The volume density is 1.85-1.92 g / cm < 3 >, the porosity is smaller than or equal to 7%, the resistivity is 12-14 mu omega m, the breaking strength is larger than or equal to 85 MPa, the compressive strength is larger than or equal to 180 MPa, the Young modulus is 13-15 GPa, the thermal expansion coefficient is smaller than or equal to 5.0 * 10 <-6 > / DEG C, the total impurity content is smaller than or equal to 50 ppm, the key metal element content is smaller than or equal to 5 ppm, and all the properties reach the industry leading level. The harsh requirements of the ion implantation technology on the special graphite material in the aspects of electric heating performance, mechanical performance, thermal stability and purity can be fully met, and stable operation and efficient work of ion implantation equipment are effectively guaranteed.

The invention discloses a roasting furnace for carbon products and a roasting control method, and the roasting furnace for the carbon products comprises a furnace body which is divided into a plurality of roasting areas in the direction from a product inlet to a product outlet of the furnace body; the carrying device is partially arranged in the furnace body and is used for conveying the carbon products from the product inlet of the furnace body to the product outlet of the furnace body; the multiple heating devices are arranged on the inner side wall of the furnace body at intervals, each roasting area is provided with at least one heating device, and the heating temperatures of the heating devices arranged in different roasting areas are different. The technical problem that large energy loss is caused by roasting temperature control is solved.

The application discloses a coal gasification residue harmless treatment system and method in the technical field of solid waste treatment, which comprises the following steps: a screening device is used for screening treatment of the coal gasification residue to obtain oversize material and undersize material; a grinding device is used for grinding treatment of the oversize material to obtain ground oversize material; a sorting device is used for residual carbon sorting treatment of the undersize material to obtain concentrate and gasification tail residue, wherein the concentrate is used as a residual carbon product after dehydration, and the gasification tail residue is used as mixed material with the ground oversize material after dehydration and enters a compound leaching device; the compound leaching device is used for compound leaching and dehydration treatment of the mixed material; a chemical oxidation device is used for chemical oxidation and dehydration treatment of the mixed material after the compound leaching and dehydration treatment; and a water washing adjusting device is used for water washing adjustment and dehydration treatment of the mixed material after the chemical oxidation and dehydration treatment. The coal gasification residue generated by the coal chemical industry is subjected to systematic harmless treatment, and the effect of turning waste into treasure is realized.

The application provides a self-powered heat type biomass conditioning pyrolysis method and device for co-production of high-value liquid and solid products, and belongs to the technical field of biomass processing. The device provided by the application mainly comprises a feeding module, a pyrolysis module, a condensation module and a self-powered heating module. Based on in-situ conditioning pyrolysis integration, the pyrolysis path is in-situ regulated by adding a trace amount of potassium metal salt, the self-powered electric heating molten salt precise temperature control technology is used, the conditioning pyrolysis process is uniform, stable and controllable, and the oil and carbon products can be simultaneously upgraded. After the reaction, the potassium salt catalyst does not need to be separated and can be directly used as high-value field-return biochar or subsequent activated raw material, and the quality of the biochar is further improved. The device has simple structure and precise temperature control, the oil and carbon products prepared have high quality, the catalyst does not need to be separated, and has wide application prospect.

The application relates to the technical field of carbon product processing equipment, and particularly discloses a carbon product continuous production method and device. The carbon product continuous production device comprises a workbench, a rotating disc rotatably connected to the middle part of the workbench, and a feeding mechanism, a drilling mechanism, a slotting mechanism, a threading mechanism and a discharging mechanism installed on the upper end face of the workbench; the feeding mechanism, the drilling mechanism, the slotting mechanism, the threading mechanism and the discharging mechanism are sequentially arranged around the rotating disc; and a plurality of clamps and adjusting mechanisms are installed on the rotating disc. The carbon product continuous production device is characterized in that a plurality of processing stations are arranged outside the rotating disc, the clamps are driven to rotate by the rotating disc, the positions of the clamps are adjusted, the states of the clamps are adjusted in cooperation with the adjusting mechanisms, the clamps can drive the carbon brushes to present different postures in different processing stations, the processing device is matched, the efficient continuous processing of the carbon brushes is realized, and the processing efficiency of the device is improved.

The processes disclosed herein are environmentally friendly technologies to produce biocarbon products with low water intensity as well as low carbon intensity. Some variations provide a low-water-intensity process for producing a biocarbon product, comprising: providing a starting feedstock comprising biomass and water; drying the starting feedstock to generate a dried feedstock and a first vapor; pyrolyzing the dried feedstock to generate hot solids and a second vapor; condensing the first vapor to generate a first condensed liquid having a first pH from about 1 to about 7; condensing the second vapor to generate a second condensed liquid having a second pH from about 1 to about 7; forming acid water comprising the first condensed liquid, the second condensed liquid, or a mixture thereof; washing and cooling the hot solids using the acid water, to generate washed, cooled solids; and recovering the washed, cooled solids as a low-water-intensity biocarbon product.

The invention discloses a processing method for improving the compaction density of capacitor carbon and the volume specific capacity of an electrode material, and the method comprises the steps: carrying out the grinding and shaping of an activated and pore-formed capacitor carbon raw material, and obtaining the spherical capacitor carbon powder; carrying out washing and roasting pretreatment on the sphere-like capacitance carbon powder to obtain pretreated capacitance carbon; mixing the pretreated capacitor carbon to obtain uniform mixed capacitor carbon powder; and calcining the mixed capacitor carbon powder for 0.5-2 hours at the temperature of 500-900 DEG C in a protective gas atmosphere to finally obtain a capacitor carbon finished product with improved compaction density and volume specific capacity. By accurately controlling particle size distribution and proportion of raw materials and combining a shaping process and a heat treatment process, accumulation gaps among capacitor carbon particles are reduced, and the compaction density is improved; the optimized particle morphology enhances the fluidity of the material and the forming strength of the electrode, so that the volume specific capacity of the electrode material is obviously improved.

The invention discloses a deformation cylinder type carbon-carbon product correcting tool and a method for correcting a carbon-carbon product through the deformation cylinder type carbon-carbon product correcting tool. The tool comprises a pressing nut, a fixing bolt, a supporting arm, a pressing bolt, a graphite supporting cylinder and two semicircular clamping bases. The two semicircular clamping seats are connected to form a cylinder, a graphite supporting cylinder is arranged in the cylinder, a plurality of square grooves are formed in the semicircular clamping seats, and supporting arms are arranged in the square grooves. The correcting method comprises the steps that the carbon-carbon heat preservation cylinder is placed in the tool, the carbon-carbon heat preservation cylinder makes contact with the graphite supporting cylinder, the carbon-carbon heat preservation cylinder is pressed tightly through the pressing bolt, and high-temperature treatment is conducted. The split type tool is convenient to carry, can be carried to a user site to process a deformed product, and is simple to operate; load can be uniformly applied in the circumferential direction through the semicircular clamping seat, so that secondary damage is prevented; the semicircular clamping seats are spliced through bolts, loads are evenly applied in the same circumferential direction, the parallel clamping seats do not affect each other, and therefore the problem that precise control is difficult is solved.

The application discloses a coal-based gasification slag residual carbon backflow, circulating and reselecting extraction system and process, and relates to the technical field of coal chemical industry.The system comprises a circulating water pool, a water bubbling machine, a water selection pool, a particle size sorting machine, a sedimentation classifier, a desliming screen, an A-spiral group, a B-spiral group and a hot air pressure filter.The coal-based gasification slag residual carbon recovery rate reaches more than 98%, which is much higher than the residual carbon recovery rate level of less than 60% in the same industry.The water content of the extracted carbon is less than 40%.The coal-based gasification slag residual carbon backflow, circulating and reselecting extraction system and process can realize the water content of the carbon product after the extraction of the residual carbon in the coal-based gasification slag to be less than 40%, which is much higher than the water content level of 50%-70% of the extracted carbon in the same industry, and effectively solves the technical problem of the dehydration difficulty of the gasification fine slag.

Provided are methods and systems for renewable power optimization for production of a reduced carbon product from a gaseous CO2 source (such as the atmosphere).

The invention discloses a coal-based gasified slag carbon residue backflow and circulating check extraction system and process, and relates to the technical field of coal chemical industry, the system comprises a circulating water pool, a water soaking machine, a water separation pool, a particle size sorting machine, a sedimentation grader, a desliming screen, a spiral group A, a spiral group B and a hot air filter press; according to the coal-based gasified slag carbon residue backflow and cyclic check extraction system and process, the carbon residue recovery rate of coal-based gasified slag can reach 98% or above, and is far higher than the carbon residue recovery rate level of less than 60% in the same industry; according to the coal-based gasification slag carbon residue backflow and circulation check extraction system and process, the water content of a carbon product obtained after carbon residue extraction in coal-based gasification slag can be smaller than 40%, the water content of the carbon product is far higher than the water content of 50%-70% of extracted carbon in the same industry, and the industrial technical problem that gasification fine slag is difficult to dehydrate is effectively solved.

The invention provides a method and a device for co-producing high-value liquid and solid products through self-supply electric heating type biomass tempering pyrolysis, and belongs to the technical field of biomass treatment. The device provided by the invention mainly comprises a feeding module, a pyrolysis module, a condensation module and a self-powered heating module. On the basis of in-situ conditioning and pyrolysis integration, a trace amount of potassium metal salt is added to regulate and control a pyrolysis path in situ, a self-powered electrothermal molten salt precise temperature control technology is utilized, the conditioning and pyrolysis process is uniform, stable and controllable, and synergistic upgrading of oil-carbon products can be realized. After the reaction, a potassium salt catalyst does not need to be separated and can be directly used as high-value returning-to-field biochar or a subsequent activation raw material, and the quality of the biochar is further improved. The device is simple in structure and accurate in temperature control, the prepared oil-carbon product is high in quality, the catalyst does not need to be separated, and the application prospect is wide.

The utility model discloses a carbon roasting device which comprises a roasting box, an annular plate, a roasting assembly and a driving assembly. A rotating shaft is rotatably mounted in the roasting box, a cross is mounted in the annular plate, the rotating shaft is mounted in the middle of the cross, a plurality of fixing shafts are uniformly mounted on the side face of the annular plate, mounting rods are rotatably mounted at the two ends of each fixing shaft, and carrying plates are mounted at the lower ends of the mounting rods; a driving assembly is installed on the outer side of the roasting box and connected with one end of the rotating shaft. According to the carbon roasting device, a carrying plate is rotated to move through a rotating shaft, a second belt wheel is driven to rotate, the second belt wheel rotates to drive a first belt wheel to rotate under the effect of a belt, and the first belt wheel rotates to drive a roasting assembly to move; therefore, the carbon product is uniformly roasted at high temperature under the action of the moving loading plate and the fuel gas nozzle which reciprocates left and right, so that the roasting effect on the carbon product is improved.

The invention discloses a calcining process method of petroleum coke, and relates to the technical field of carbon product preparation, and the calcining process method comprises the following steps: S1, crushing petroleum coke, adding red mud microspheres, mixing, ball-milling, drying, and sieving to obtain pretreated petroleum coke; s2, adding a porous cerium-doped nano iron oxide desulfurizer into the pretreated petroleum coke, and uniformly mixing to obtain a mixture to be calcined; s3, transferring the to-be-calcined mixture into a tubular furnace, heating in a nitrogen atmosphere, raising the temperature to 750-850 DEG C, and keeping the temperature for 1-2 hours to obtain desulfurized petroleum coke; naturally cooling, taking out, washing with a hydrochloric acid solution, washing with deionized water until the mixture is neutral, and carrying out suction filtration and drying; and S4, calcining the dried desulfurized petroleum coke at 900-1200 DEG C for 3-5 hours to obtain the calcined petroleum coke. According to the calcining process provided by the invention, the desulfurization rate of the petroleum coke can be effectively improved, and the calcined petroleum coke with low ash, low sulfur and high density is obtained.

The invention provides a carbon product electric roasting furnace, a building method and system, a carbon product and a carbon graphite product. The carbon product electric roasting furnace comprises a furnace end area which comprises a head conductive electrode; the furnace tail area comprises a tail conductive electrode; the furnace body area is positioned between the furnace head area and the furnace tail area; the furnace top area is located above the furnace body area, the furnace top area comprises a furnace cover, the furnace cover is provided with a lower surface facing the furnace body area, and the ratio of the weight of the furnace cover to the area of the lower surface ranges from 2 tons / m < 2 > to 6 tons / m < 2 >; and the electrical device is suitable for supplying power to the furnace body area through the head conductive electrode and the tail conductive electrode. According to the carbon product electric roasting scheme, the roasting yield of the carbon product can be greatly improved, and the roasting quality of the product is improved and stabilized.

The invention relates generally to a process for the preparation of a carbon product having a high degree of graphitization, comprising the steps of contacting a carbohydrate containing starting material with a molten salt wherein the molten salt comprises one or more hydrated salts selected from the group consisting of ZnCl2, MnCl2, FeCl3, AlCl3, MgCl2, CaCl2 and SbCl2 and carbonising the carbon containing starting material in mixture with the molten salt to form a carbon product by heating at temperatures between 100 and 300°C in a closed reactor system in an atmosphere free of oxygen (O2), forming the carbon product having a degree of graphitization DOG of at least 45% and separating the carbon product from the molten salt. The invention also relates to the carbon product obtainable by the process and to uses of the carbon product.

The application relates to a reactor and a method for producing a solid carbon product by a chemical reaction. The reactor comprises a catalyst, at least one inlet for supplying a reactant into the reactor, at least one outlet for discharging the product, and at least one magnetic or electromagnetic device and / or electric means to provide movement of the catalyst in the reactor.

The utility model provides a material pressing cylinder forming assembly, and belongs to the technical field of columnar carbon forming. Which comprises a cylinder body, a pressing rod and a mold mounting cavity, and a carbon powder sealing device arranged at the top of the mold mounting cavity and comprises an outer layer arranged at the top of the mold mounting cavity; the inner layer is arranged in the outer layer; and the plurality of placing grooves are formed in the outer layer and are distributed in a circumferential manner. By arranging the heating module and the heating ring block, when the carbon powder is extruded and formed, the carbon powder can be heated and dried, so that the situation that the wet carbon powder is hung on the wall and adhered in the mold when being extruded and formed is avoided, the situation that columnar carbon or chippings fall off from the bottom is reduced, the pyrolysis rate of the carbon powder is increased, and the production efficiency is improved. And the uniformity of the internal structure of the columnar carbon finished product is ensured.

The application discloses a novel rice hull pyrolysis reactor and relates to the field of biomass energy sources.The reactor comprises a reaction gas outlet section, a carbon particle screening section and a carbon storage section.The lower end of the reaction gas outlet section is connected to the upper end of the carbon particle screening section in a water seal mode.The lower end of the carbon particle screening section is connected to the upper end of the carbon storage section in a water seal mode.The reaction gas outlet section, the carbon particle screening section and the carbon storage section are arranged in cooperation.The reaction gas outlet section and the carbon storage section are supported by supports during use.The carbon particle screening section connects the reaction gas outlet section and the carbon storage section as an intermediate part.The three sections are connected in a sealed mode through an annular water tank, so that the three sections can be conveniently separated, thereby facilitating maintenance personnel to carry out maintenance.A driving motor drives a driving gear to rotate.The driving gear is engaged with a tooth groove formed in the end face of the second end of a tooth cylinder, so that the carbon particle screening plate can rotate.The carbon particle screening plate is uniformly provided with screening holes, so that carbon particles can uniformly fall and the quality of carbon products can be ensured.

The utility model discloses a methane cracking hydrogen production and carbon product continuous separation and purification device which mainly comprises a methane cracking reaction part for providing a reaction space for methane cracking reaction, a carbon product separation and collection part for realizing separation of a carbon product and metal catalyst impurities and facilitating collection of the carbon product, and a carbon product separation and collection part for realizing separation of the carbon product and metal catalyst impurities. The catalyst feeding part is used for timely supplementing a catalyst consumed in the reaction process, and the gas circulating part is used for recycling uncracked methane, improving the yield of hydrogen production through methane cracking and reducing methane gas waste. According to the utility model, methane is cyclically cracked in the molten metal catalyst, so that the methane cracking efficiency is improved; by collecting and purifying a carbon product, the operation cost is reduced, the hydrogen purity is improved, clean energy is generated, and carbon-free emission of energy is realized.

The utility model relates to a material block separating device in a carbon production and forming process, belongs to the technical field of carbon production, and solves the technical problems that products are easily mixed with material blocks in the existing carbon production and forming process, the qualification rate of the products is low, the material blocks are difficult to separate after entering a mold and the like. According to the solution, the separation device for the material balls in the carbon production forming process comprises a rack, a conveying assembly, a sweeping assembly and a driving assembly; the conveying assembly is arranged on the rack and comprises a first transmission shaft, a second transmission shaft, two driving chain wheels, two driven chain wheels and two chains, connecting rods are evenly distributed on the inner sides of the two chains, lattice ribs are connected to the connecting rods, the other ends of the lattice ribs are lapped on the adjacent connecting rods or are in a drooping state, and the lattice ribs, the connecting rods and the chains define a sieve plate. Every two grid ribs between every two adjacent connecting rods form a sieve hole; the driving assembly comprises a servo motor. Compared with the prior art, the device has the advantages of effectively separating cooled paste materials and material balls, improving the production quality of carbon products and the like.

The utility model relates to the technical field of carbon product production, and provides a special carbon-graphite material high-efficiency pressurization mixing and kneading device which comprises a mixing and kneading machine body, a heating layer, a mixing reamer and a liftable gland, and a mixing and kneading machine heat preservation layer is arranged on the outer side wall of the mixing and kneading machine body and the outer side wall of the heating layer. According to the asphalt mixing and kneading machine disclosed by the utility model, air in coke fine powder is reduced through the vacuum-pumping system, the flowing resistance of asphalt is reduced, the penetration of the asphalt in coke pores is enhanced, and the filling degree and the bonding strength of the asphalt are improved. The compactness of the paste is improved by strong mixing and kneading under the action of a gland, and heat generated by friction is beneficial to asphalt flowing and polycondensation reaction, so that the coking value is increased. The S-shaped reamers are different from conventional reamers, cross-linking of the paste is intensified through a unique movement mode, strong convection is achieved, kneading is intensified through extrusion force generated by the included angle between the reamers and the pot wall, and the paste is more uniform.

The invention relates to a multi-raw-material self-adaptive closed-loop carbonization system, and relates to the technical field of biomass carbonization equipment. The system comprises a multi-raw-material self-adaptive feeding module, a double-barrel carbonization module, a tar catalytic cracking module, a dry quenching cooling module and an intelligent energy module. Raw materials are detected by the laser particle size analyzer and then enter the gap-adjustable packing auger through the partition feeding channel, and an eccentric wheel mechanism is regulated and controlled by the AI temperature control unit to achieve blade gap adjustment. An inner cylinder of the double-cylinder carbonization chamber conveys raw materials through a spiral blade, the inner cylinder can rotate through an eccentric wheel mechanism, and a waste heat exchange pipe on the inner wall of an outer cylinder recovers heat; after the nitrogen is subjected to gas-liquid separation in the cracking chamber, liquid tar is cracked into natural gas for reuse by a Ni / Al2O3 catalyst, and the nitrogen is subjected to closed-loop circulation; the cooling bin and nitrogen are cooperatively cooled through multiple layers of flow guide plates, and carbon products are classified through a vibration screening device. According to the invention, compatibility of multiple raw materials, self-supply of energy and zero emission of pollutants are realized, and the qualified rate of carbon products is increased to 95% or above.

The utility model relates to the technical field of carbon product production, and provides an automatic control device for mixed kneading smoke, which comprises a mixed kneading machine, a smoke valve and a PLC (programmable logic controller) system, the smoke valve is mounted on the mixed kneading machine, a smoke treatment system is connected outside the smoke valve, and a vacuum pressure gauge is further mounted on the mixed kneading machine. Different actual production requirements can be met, an operator can freely switch according to specific conditions, the device can be flexibly applied to various complex working conditions, the universality and operation flexibility of the device are greatly improved, and more diversified choices are provided for the production process; the automatic control function is achieved, an automatic mode or a self-adjusting mode can be selected, and intelligent control over the smoke valve in the mixing and kneading process is achieved. In the automatic control mode, the program can be paused, the opening degree of the air valve is restored to the initial value, an observation window can be conveniently opened in the mixing and kneading process to check the paste condition, and meanwhile the problem that mixing and kneading smoke escapes due to insufficient negative pressure is effectively solved.

The utility model discloses a carbon product raw material stirring device with eddy current, and particularly relates to the technical field of carbon product manufacturing, which comprises a stirring barrel, and a stirring component is mounted in the stirring barrel; the stirring assembly comprises a first motor, a first rotating rod is installed at the output end of the first motor, a first spiral blade is fixedly connected to the middle of the outer side of the first rotating rod, stirring blades are fixedly connected to the outer side of the bottom end of the first rotating rod, and a first gear is fixedly connected to the outer side of the top end of the first rotating rod. By arranging the stirring assembly, compared with the prior art, a first rotating rod is used for driving a first spiral blade and a stirring blade to generate two vortexes in the stirring barrel, and then a first gear is matched with a fluted disc to be meshed with a plurality of second gears to drive a scraping plate to scrape the inner wall of the stirring barrel; the relative movement speed and frequency among the raw materials are increased, the mixing efficiency and uniformity are improved, the convection and diffusion effects among the raw materials are enhanced, and the mixing stability is further improved.

The invention relates to a carbon product graphitization furnace, and relates to the technical field of graphitization furnaces, the carbon product graphitization furnace comprises an outer furnace body and a control console, an inner furnace body is arranged in the outer furnace body, a cover plate is rotatably connected to the outer furnace body, a heating coil used for heating the interior of the inner furnace body is installed on the outer wall of the inner furnace body, and the heating coil is electrically connected with the control console; the interior of the inner furnace body is used for containing carbon products, the inner furnace body is provided with an upper end cover and a plugging plate for plugging the upper end of the inner furnace body, a plurality of cooling pipes are arranged in the plugging plate in a penetrating mode, a conveying assembly used for conveying cold water into the cooling pipes is installed outside the outer furnace body, and a flow guide plate used for receiving condensate water on the plugging plate is arranged below the plugging plate. A heat insulation recycling box is installed between the outer furnace body and the inner furnace body, arranged below the flow guide plate and communicated with the flow guide plate. The carbon product heating device has the effect of absorbing steam generated in the carbon product heating process.

The invention discloses a collaborative purification system and method for carbon product roasting flue gas and desulfurization wastewater. The system comprises a wastewater supply and evaporation unit, a crystal salt adsorption and purification unit and a flue gas supply unit which are connected through pipelines. The method comprises the following steps: pre-treated desulfurization wastewater is atomized and sprayed into a full-evaporation spray cooling tower to be in direct contact with high-temperature roasting flue gas for evaporation, water vapor returns to a desulfurization system, generated micron-sized crystal salt enters an adsorption reactor along with the flue gas and is captured by a special adsorbent, and asphalt smoke in the flue gas is synergistically removed; and finally, gas-solid separation is realized through the bag type dust collector. According to the invention, waste is treated by waste, cooperative treatment of desulfurization wastewater zero discharge and flue gas purification is realized, the problem of crystalline salt trapping is solved, and the method has the remarkable advantages of high efficiency, economy and safety.

The invention discloses a real-time calculation method for converter steelmaking carbon emission. The method comprises the following steps: calculating process carbon emission; calculating the implicit carbon emission of the carbon-containing product; calculating the carbon emission of the consumed fossil fuel; calculating indirect carbon emission; the converter steelmaking carbon emission is calculated through a carbon emission calculation formula, and the calculation formula is shown in the specification. According to the method, real-time updating of carbon emission in the converter steelmaking production process is achieved, the problem of traditional lagged accounting pain points is solved, and enterprises are assisted to quickly respond to the carbon management and control target.

The invention relates to a low-carbon-emission methanol-to-hydrogen method which comprises the following steps: decomposing methanol to obtain mixed gas containing mixed hydrocarbon; cooling, washing and drying the mixed gas to obtain purified mixed hydrocarbon; inputting the mixed hydrocarbon into a reactor, reacting, and carrying out catalytic decomposition to generate hydrogen and a solid-state nanoscale carbon product; and separating the tail gas generated by the reaction in the previous step to obtain hydrogen. Methanol is decomposed into gas containing mixed hydrocarbon, then hydrogen elements in the mixed hydrocarbon are converted into hydrogen, carbon elements in the mixed hydrocarbon are converted into solid nanometer carbon materials, the solid nanometer carbon materials are fixed, the added value of the product is higher, economic benefits are higher, large-scale emission of CO2 is avoided while hydrogen is produced, and the production cost is reduced. The economical efficiency of the process of producing hydrogen from methanol is greatly improved, and the total amount of generated carbon monoxide and carbon dioxide is not more than 0.15 mol when 1 mol of hydrogen is produced.