34 results about "Carbon.organic" patented technology

The application discloses an ultrahigh-strength carbon sequestration cementing material and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing the carbon sequestration cementing material, amphiphilic hydrophilic block copolymer and water to obtain a mixture; and performing molding and carbonization curing on the mixture to obtain the ultrahigh-strength carbon sequestration cementing material. The application creatively uses the amphiphilic hydrophilic block copolymer as a carbonization enhancer of the carbon sequestration cementing material, greatly improves the mechanical property of the carbon sequestration cementing material, and the amphiphilic hydrophilic block copolymer can regulate the crystal form of carbonization products, combines with calcium ions to form a hydrogel with an ionic crosslinking network and filled in pores, can be used as a template for calcium carbonate crystallization to form a carbon organic-inorganic composite structure, makes calcium carbonate grains grow in an orientation manner, improves the combination between calcium carbonate crystals, and greatly improves the mechanical property of the material. The enhancement technology is simple in process and low in cost, widens the application range of the carbon sequestration cementing material, and has a good application prospect.

The application discloses a solid waste treatment system and method based on gasification slag smoldering and organic solid waste pyrolysis, and belongs to the technical field of solid waste treatment. The system comprises a first reaction furnace and a second reaction furnace. The feeding mechanism, smoke outlet, heating mechanism and gas supply mechanism of the two reaction furnaces are combined and arranged. The condensing mechanism, flow distribution valve and gas purification / mixing device work cooperatively, and heat is transferred between the two reaction furnaces. The smoldering treatment of gasification slag and the pyrolysis treatment of carbon-rich organic solid waste can be accurately completed. The solid waste treatment system has simple system composition and convenient control. The high-value recycling of gasification slag and carbon-rich organic solid waste can be realized without using a large amount of external auxiliary energy. Low-oxygen CO-rich gas and pyrolysis semi-coke can be quickly prepared. The recycling rate of the available energy in the gasification slag and carbon-rich organic solid waste is improved. The treatment cost of the gasification slag and carbon-rich organic solid waste is reduced. The system has good economic value and practical value.

The present disclosure provides a sewage treatment method and an execution system, comprising: under the conditions of stirring and anaerobic, absorbing and releasing phosphate by anaerobic phosphorus release and internal carbon source conversion reaction in the first sewage, taking the carbon-containing organic matter in the first sewage as a carbon source, to obtain the second sewage; performing aerobic treatment on the second sewage, determining the relative activity of aerobic phosphorus accumulating bacteria and aerobic ammonia-oxidizing bacteria in the second sewage according to the pH value change trend of the second sewage; treating the second sewage by using a multi-stage aeration mode according to the relative activity, adjusting the dissolved oxygen concentration by adjusting the aeration mode of the multi-stage aeration, to occur integrated nitritation-anammox and aerobic phosphorus absorption reaction, to obtain the third sewage; under the conditions of stirring and anaerobic, performing deep phosphorus and nitrogen removal on the third sewage by anaerobic ammonia oxidation reaction, denitrification phosphorus removal reaction and internal carbon source denitrification reaction to obtain the fourth sewage; standing the fourth sewage to separate the sludge and water, and outputting the sewage obtained after the sludge and water separation.

The invention discloses a high-precision recovery marine facies compact limestone sedimentary environment and oil-gas dessert area prediction method. The method comprises the steps that S1, an argillaceous limestone phase, an argillaceous limestone phase, a mud-powder crystal limestone phase and a paste limestone phase are divided through X-ray diffraction and slice identification; s2, utilizing a chemical weathering index CIA, a Sr / Ca salinity index and delta 13Corg organic carbon isotope to synergistically recover paleo-climate and paleo-hydrological conditions; s3, combining total organic carbon TOC, organic matter maturity Ro, terrestrial input Al and Ti content and nanopore development degree, and establishing an organic matter-rich high-quality lithofacies evaluation standard; and S4, according to an evaluation standard, well drilling, well logging and seismic data are fused to predict the oil and gas sweet spot area. Through the four steps of lithofacies division, paleoenvironment recovery, evaluation standard establishment and dessert area prediction, high-precision recovery of the marine facies compact limestone sedimentary environment is realized, the dessert area prediction success rate is improved to 78%, and efficient technical support is provided for oil-gas exploration.

The invention discloses a process method for preparing green hydrogen by coupling biomass flameless pyrolysis gasification with steam reforming, and relates to the technical field of hydrogen energy preparation and organic solid waste recycling, and the process method comprises the following steps: in a high-frequency electromagnetic heating austenite alloy rotary kiln, carbon-containing organic matters are subjected to primary cracking by using a light quantum energy field excited by an alloy; combustible gas and solid carbon residues are mixed; the primary product is introduced into a light quantum reforming reactor, high-temperature superheated steam is introduced into the light quantum reforming reactor, in the reforming reactor, the high-temperature steam is dissociated into active [H] atoms and [OH] free radicals under the action of a light quantum field, the active [H] atoms and the [OH] free radicals are subjected to an efficient roaming chemical reaction with primary combustible gas and solid carbon, and hydrocarbon and carbon are preferentially converted into H2 and CO; finally, the reaction product is subjected to pressure swing adsorption or molecular sieve separation to obtain high-purity hydrogen, energy field precise excitation and chemical reaction cooperation are achieved, and the yield and selectivity of hydrogen are greatly improved.

The invention discloses a method for co-processing waste incineration fly ash based on ultrafast carbon thermal reduction, organic solid wastes such as waste rubber and plastic are converted into graphene by utilizing high-voltage instantaneous current, and ultrafast carbon thermal reduction processing of the waste incineration fly ash is realized by utilizing excellent conductivity and reducibility of the graphene. According to the present invention, the waste incineration fly ash is subjected to detoxification so as to ensure the efficient and synchronous removal of the heavy metal and the dioxin in the waste incineration fly ash, the detoxified product is applied to the cement-based composite material so as to optimize the pore structure of the cement binder system and improve the hydration process, and the mechanical property of the building material product is improved, such that the harmless treatment and the resource utilization of the waste incineration fly ash are achieved. The material can be heated to over 3000 DEG C within an extremely short time, internal chemical bonds of the material in a non-equilibrium state are initiated to break and recombine, and evaporation removal of non-carbon elements such as heavy metal and thermal degradation of dioxin are promoted. And the environmental risk of the waste incineration fly ash is remarkably reduced, and co-treatment of the waste incineration fly ash, waste rubber and plastic and other high-carbon organic solid waste can be achieved.

The invention discloses a preparation method of bio-based multi-dimensional carbon nitride antibacterial and antifouling resin. The preparation method comprises the following steps: preparing an acrylic acid modified tertiary carbon compound, and respectively reacting the acrylic acid modified tertiary carbon compound with organic SiO2 hydrophobic colloid and hydrophobic modified inorganic silica sol to prepare tertiary carbon-organic SiO2-a and tertiary carbon-inorganic silica sol-b; the preparation method comprises the following steps: respectively polymerizing tertiary carbon-organic SiO2-a and tertiary carbon-inorganic silica sol-b with methyl methacrylate, butyl acrylate and a fluorine-containing acrylate monomer to prepare a prepolymer 1 and a prepolymer 2, and polymerizing the prepolymer 1 and the prepolymer 2 to prepare the organic-inorganic modified tertiary carbon-fluorosilicone antifouling resin. And preparing bio-based multi-dimensional carbon nitride, and mixing the bio-based multi-dimensional carbon nitride with the organic-inorganic modified tertiary carbon-fluorosilicone antifouling resin to obtain a target product.

This magnetic material comprises magnetic nanoparticles (10) and a low-carbon organic substance (20) having 4 or less carbon atoms. The low-carbon organic substance (20) comprises C, N, O, and H, and has a structure having an amide bond. The magnetic nanoparticles (10) are each formed of Fe, an Fe-containing alloy material, or an Fe-containing compound. The magnetic nanoparticles (10) each have a mean particle diameter of 20-200 nm when being calculated as a ball having the same volume, and have a volume fraction of 80-95 vol%.

The invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment for graded release of carbon sources and synchronous phosphorus recovery, comprising a water inlet unit for receiving carbon-containing organic sludge or sewage; the carbon source conversion unit is communicated with the water inlet unit; the phosphorus migration regulation and control unit is communicated with the carbon source conversion unit and adopts a multi-stage reaction tank structure and a dynamic sludge backflow channel; the phosphorus separation and recovery unit is communicated with the phosphorus migration regulation and control unit; the water outlet unit is communicated with the phosphorus separation and recovery unit and is used for outputting standard water; and the automatic control system is connected with all the units and is used for adjusting operation parameters of all the units in a linkage manner. Compared with the prior art, by arranging the carbon source conversion unit, methanation side reaction can be effectively inhibited, the carbon source conversion efficiency is improved, meanwhile, different water quality characteristics are adapted by flexibly adjusting operation parameters, stable and reliable carbon source supply is provided for subsequent phosphorus recovery and nitrogen and phosphorus removal processes, and overall optimization of the sewage treatment process is achieved.

The utility model discloses low-carbon organic wastewater treatment equipment for ultraviolet concerted catalytic oxidation, which belongs to the technical field of wastewater treatment and comprises a purification chamber, a water inlet and a water outlet are respectively arranged at the upper end and the lower end of the purification chamber, and ultraviolet lamps are arranged at the upper end and the lower end of the inner wall of the purification chamber; the purification chamber is coaxially provided with an annular frame body, the frame body is located between the two ultraviolet lamps, and the interior of the frame body is detachably connected with a photocatalyst net; two annular supports are coaxially and rotatably connected to the interior of the purification chamber, and cleaning structures for cleaning through photocatalyst nets are arranged on the supports; two driving motors are arranged on the side wall of the purification chamber, and driving gears meshed with the outer arc surfaces of the corresponding supports are arranged at the output ends of the driving motors; the utility model aims to solve the problem that the photocatalyst reaction efficiency is reduced because impurities in wastewater are gradually adsorbed on the surface of a photocatalyst layer in the treatment process, and can more effectively treat wastewater to achieve the effects of low carbon and energy conservation.

This invention belongs to the field of single-walled carbon nanotube technology, specifically disclosing a method and application for preparing single-walled carbon nanotube powder using ferrocene suspension. The preparation method is as follows: at room temperature, ferrocene is added to xylene solvent, and a growth promoter is introduced simultaneously. The mixture is ultrasonically dispersed to form a uniform supersaturated ferrocene suspension. Under inert gas protection, the mixture is subjected to high-temperature treatment. A mixture of inert gas, hydrogen, and gaseous carbon-containing organic matter is continuously introduced into the reaction chamber, while the catalyst solution prepared in step S1 is injected into the reaction chamber to react, thereby obtaining single-walled carbon nanotube powder. This invention uses a supersaturated suspension as feed, and ferrocene is uniformly dispersed in the solvent in the form of micro-nano-scale aggregates. After vaporization, it forms a uniformly sized aerosol precursor. Upon entering the high-temperature zone, synchronous and uniform pyrolysis occurs, making the collision probability of the released Fe atoms / small clusters more controllable and significantly reducing the polarization between "large particles" and "overly small clusters."

The invention discloses a method for preparing an arsenic passivator from coal gangue and iron tailings. The method comprises the following steps: mixing iron tailing powder, coal gangue powder and water to prepare slurry; introducing the mixed slurry into a closed reactor, carrying out free radical oxidation exothermic reaction on carbon-based minerals in the coal gangue in a high-temperature and high-pressure oxygen-controlled atmosphere to generate organic acid and organic matters, and forming a reducing atmosphere due to insufficient oxygen supply; under the high-temperature hydrothermal condition, decomposition and reconstruction of the iron tailings and the coal gangue powder are promoted, so that carbon organic matter is converted, iron is activated, and a passivation material is synthesized; and after the reaction is finished, carrying out solid-liquid separation on the reaction product, and washing to obtain the product arsenic passivator. According to the method, organic matter of carbon in the coal gangue is converted and high activity of iron in the iron tailings is converted under the hydrothermal condition of high temperature, high pressure and oxygen control, and the obtained arsenic passivator can effectively achieve fixed passivation of soil arsenic and improvement of the organic matter.

The application discloses a ruthenium-based ammonia synthesis catalyst with alumina as a carrier and a preparation method thereof. The catalyst is prepared by the following steps: first, impregnating alumina with a water solution containing carbon-containing organic matters, and then high-temperature heat treatment in an oxygen-containing atmosphere to obtain an alumina carrier; then, introducing cerium additives by a precipitation method, and calcining in an inert atmosphere; then, introducing active components ruthenium and performing heat treatment in a carbon-containing gas; and finally, reduction to obtain the catalyst. Compared with the alumina-supported ruthenium catalyst prepared by the prior art, the catalyst prepared by the application has higher ammonia synthesis activity, and has a good application prospect.

The application provides a device and a process for gasification and ashing of carbon-containing organic matter, and relates to the technical field of carbon-containing organic matter treatment. The device comprises a cylindrical furnace body, a cylindrical shaft vertically arranged in the furnace body, and multiple layers of furnace beds perpendicular to the cylindrical shaft. Each of the furnace beds is circumferentially provided with a hollow rotating rake and a magnetic force generator. The rotating rake is in communication with the cylindrical shaft, and the gap between the rotating rake and the magnetic force generator in the furnace bed is provided with a bed of piezoelectric material. A multistage and multipole magnetic field with a temperature of less than 500 DEG C is formed in the device. At this time, oxygen molecules are ionized to form plasma, and the reaction capacity is greatly increased. Meanwhile, a large amount of electrons are released from the pyroelectric material. In a magnetic field with a strength of 0.1-0.5 T, the electrons continuously and orderly pour down the carbon-containing organic matter like a waterfall at a speed of 1.43-3.19 x 10 3 m / s, so that the cohesion of the organic matter is seriously weakened and gradually decomposed, and the gasification and ashing processes are completed.

The application discloses a method for producing calcium-carbon-based biochar ceramsite by sewage sludge and carbide slag, which comprises the following steps: mixing sewage sludge, carbide slag and fly ash by stirring; pressure forming the mixed materials to obtain wet-based columnar particles; sending the wet-based columnar particles to a low-temperature aerobic pyrolysis rotary reactor; preheating the wet-based columnar particles by using tail gas waste heat at the front end to reduce the water content of the particles; forming biochar by aerobic pyrolysis of the biomass contained in the sludge in the low-temperature aerobic pyrolysis zone, and at the same time, the carbide slag reacts with the ambient atmosphere or CO2 generated by pyrolysis to directly provide the mechanical strength of the particles; removing the surface liquid phase product by instantaneous combustion at the end of the reactor; and finally forming calcium-carbon-based biochar ceramsite which is maintenance-free and has high mechanical strength. The application replaces the raw materials such as quicklime and cement in the original biochar ceramsite with carbide slag, greatly reduces the cost, and is maintenance-free, on the basis of retaining the excellent adsorption and phosphorus removal efficiency of the original biochar ceramsite and the performance of adsorbing carbon-containing organic matters of biochar.

The invention discloses a high-performance carbon carrier supported catalyst for hydrogenated bisphenol A production and a preparation method thereof. According to the catalyst, a carbon-containing organic matter is introduced into the surface and pore channels of activated carbon in situ to form a carbon-doped modified layer, and rich oxygen functional groups are constructed through oxidation heat treatment, so that the dispersity of a metal precursor is remarkably improved, and sintering of active components is effectively inhibited; and then preparing the high-efficiency catalyst with low metal loading capacity by adopting a metal precursor solution dipping and roasting reduction process. Compared with the existing common catalyst, the catalyst provided by the invention realizes complete conversion of bisphenol A under mild conditions, the selectivity of the product hydrogenated bisphenol A exceeds 99%, and the catalyst has the characteristics of high catalytic activity, excellent stability, high precious metal utilization rate and outstanding economic benefits, and is suitable for large-scale industrial application.

The invention relates to the technical field of organic solid waste treatment, and discloses a bio-based catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, drying and crushing the landscaping waste to obtain a reactant I; s2, dehydrating the sludge anaerobic digestion biogas residues to obtain a reactant II; s3, mixing the reactant I and the reactant II, and uniformly stirring to obtain a mixture; and S4, mixing the mixture with urea, and then carrying out pyrolytic reaction under the protection of inert gas, thereby obtaining the product. The process is easy to operate, raw materials are easy to obtain, and regeneration can be achieved in a simple and low-consumption treatment mode; the bio-based catalyst can effectively activate persulfate so as to degrade bisphenol A, tetracycline, dicamba, antibiotic resistance genes and other pollutants, the purposes of synergistic interaction, pollution reduction and carbon reduction of urban carbon-rich organic solid waste are achieved, and the dual purposes of treating waste with waste and recycling waste are achieved.

The application discloses a graphitized activated carbon supported iron-cobalt bimetallic catalyst for synthesizing ammonia and a preparation method thereof, which comprises the following steps: high-temperature heat treatment of activated carbon in an inert atmosphere, oxidation and hole expansion in air to obtain graphitized activated carbon, introduction of carbon-containing organic matter, impregnation of an iron precursor solution, heat treatment in a CO-containing mixed gas, impregnation of a cobalt precursor solution, drying, reduction, impregnation of a potassium precursor solution, drying, reduction, and ammonia synthesis catalyst with graphitized activated carbon as a carrier, iron and cobalt bimetallic as active components and potassium as an additive is obtained. Compared with the activated carbon supported iron catalyst prepared by the prior art, the catalyst obtained by the application has higher ammonia synthesis activity and better application prospect.

The present application provides a kind of carbon-based molecular sieve and active silicate prepared from coal gangue, preparation method and application, method comprising: step 1, coal gangue is ball milled to obtain coal gangue powder, then the coal gangue powder is placed in carbonization activation deposition integrated rotary furnace, carbonization, activation and deposition are carried out under inert gas atmosphere, to obtain mixed product;Step 2, the mixed product obtained in step 1 is separated in a flotation machine, and carbon-based molecular sieve and active silicate are obtained after drying.The first temperature control component, the second temperature control component and the third temperature control component are arranged between the inner wall of the heat preservation shell and the outer wall of the inner furnace body of the carbonization activation deposition integrated rotary furnace from the tail end to the head end.The present application uses coal gangue as the main raw material, converts the carbon, organic matter and other components contained in the coal gangue into carbon-based molecular sieve, and converts the residual silicon-aluminum phase into active silicate, fully utilizes the main phase of coal gangue, and reduces the waste discharge of the process.

The invention relates to the technical field of water treatment, in particular to a high-performance reverse osmosis membrane and a preparation method thereof. The high-performance reverse osmosis membrane comprises a polysulfone support layer and a polyamide separation layer, the polyamide separation layer is prepared from the following raw materials in parts by weight: 1.5 to 3 parts of m-phenylenediamine, 0.5 to 1.5 parts of boric acid modified diethylenetriamine, 1.5 to 3 parts of hyperbranched modified titanium dioxide nanotubes, 2.5 to 3 parts of a pH regulator, 0.18 to 0.5 part of a surfactant, 0.5 to 1.5 parts of an acid acceptor, 0.5 to 1.5 parts of acyl chloride monomers and 99 to 108 parts of an alkane solvent. The technical problems of insufficient TOC interception, poor pollution resistance and the like are solved; the reverse osmosis membrane has better retention rate and water flux, the removal rate of carbon-containing organic matters is improved, and membrane pollution is effectively prevented.

The invention discloses a preparation method of a quinacridone oxide / reduced graphene oxide organic molecular electrode. The preparation method comprises the following steps: firstly, oxidizing quinacridone molecules (QD) in concentrated HNO3 to obtain quinacridone oxide molecules (OQD); the generated OQD is a nitrogen-containing carbonyl compound with an intramolecular complete pi conjugated structure, reduced graphene oxide (rGO) is taken as a conductive substrate through a non-covalent functionalization strategy, the conductive substrate is anchored on the surface of the reduced graphene oxide by utilizing a solvothermal self-assembly method, and strong pi-pi interaction exists between the OQD and the rGO, so that the OQD is prepared. The conjugated carbonyl all-carbon organic molecular electrode material OQD / rGO is prepared, and the electrochemical performance of the conjugated carbonyl all-carbon organic molecular electrode material OQD / rGO is researched. The all-carbon organic molecule electrode material has high specific capacitance, good rate capability and excellent cycling stability. In addition, in order to research the actual energy storage performance, the asymmetric supercapacitor (PDQ / rGO / / OQD / rGO) assembled by the OQD / rGO and the quinone-rich polymer modified rGO (PDQ / rGO) has excellent energy storage performance.

The utility model relates to the technical field of sewage treatment, and provides an oxygen precision control system, which comprises a biochemical subsystem, a plurality of monitors, a first flow meter and an air blower assembly, the plurality of monitors are used for monitoring the amount of first oxygen required to be consumed for degrading carbon-containing organic matters in the biochemical subsystem, the amount of ammonia nitrogen generated in a nitrification process in the biochemical subsystem and the nitrogen removal amount in a denitrification process of the biochemical subsystem; the first flow meter is arranged on a sewage discharge pipeline of the biochemical subsystem and is used for monitoring the residual sludge discharge amount; the air blower assembly is arranged outside the biochemical subsystem, and the aeration rate of the biochemical subsystem can be adjusted by adjusting the rotating speed of the air blower assembly. According to the oxygen precise control system, the quality of sewage in the biochemical subsystem can be monitored in real time, the actual total oxygen demand is calculated, the aeration rate can be precisely controlled by precisely controlling the rotating speed of the air blower assembly, and oxygen precise control is achieved.

The present application relates to a kind of interface assembly modified halloysite nanotubes, comprising: hollow halloysite nanotube, a layer of modified material is loaded on the outer surface of halloysite nanotube, a layer of modified material is also loaded on the inner cavity surface of halloysite nanotube, wherein, modified material is generated by the reaction of carbon-containing organic acid aqueous solution and amino compound, metal ion aqueous solution.This application does not use toxic, harmful and volatile organic solvents in the process of halloysite modification, and the preparation process is convenient, low energy consumption, short preparation time, high yield.The modified halloysite nanotube of the present application is uniformly dispersed in polymer matrix, which greatly reduces the agglomeration, effectively improves the compatibility and interfacial bonding ability of halloysite and polymer matrix, significantly improves the mechanical properties, impact strength, electromagnetic shielding performance and smoke suppression performance of the composite, can effectively inhibit the release of smoke poison during combustion, and can be applied to the fields of impact-resistant, flame-retardant, electromagnetic shielding and other fields of reinforced polymer.

The application discloses a carbon nitride photoelectrode and a preparation method and application thereof, and belongs to the technical field of material preparation and photoelectrocatalysis. A metal film is uniformly deposited on a conductive substrate by a physical evaporation method to obtain a metal-conductive substrate, nitrogen-rich carbon organic matter is pyrolyzed and polymerized with the metal-conductive substrate under an inert gas atmosphere to obtain the carbon nitride photoelectrode. In the carbon nitride thermal polymerization process, the nitrogen-rich carbon organic matter is used as a precursor, chemical coordination is formed with a metal having a vacant track, photo-generated electrons and holes are effectively transmitted, the interface resistance is reduced, and the photoelectrocatalytic conversion reaction efficiency is improved. The carbon nitride-based photoelectrode has strong light absorption, high photo-generated charge separation / migration capacity, simple process, low cost, green environmental protection, and an easy-to-control structure, and has great application and promotion potential.

The invention discloses a method for improving activity of chlorella antioxidase by using a CO2 photocatalytic reduction product and application. The method comprises the following steps: inoculating a chlorella seed solution into a liquid culture medium added with a CO2 photocatalytic reduction product, culturing for 7 days, and measuring the activity of antioxidant enzyme in chlorella, wherein the CO2 photocatalytic reduction product is a one-carbon and / or two-carbon organic compound obtained by carrying out photocatalytic reduction reaction on CO2 under the action of a nano photocatalyst. By applying the method disclosed by the invention, the activity of superoxide dismutase (SOD), the activity of catalase (CAT) and the activity of peroxidase (POD) in the chlorella can be respectively improved by 12.7%-30.3%, 92.5%-102.3% and 43.0%-53.5%. According to the method, high-value utilization of the artificial photosynthetic carbon sequestration product is realized, a new environment-friendly path is provided for CO2 recycling, and meanwhile, the economic value and the carbon sequestration efficiency of the chlorella are improved.

The invention discloses an activated carbon supported ruthenium catalyst for ammonia synthesis and a preparation method thereof. The catalyst is prepared by taking heat-treated activated carbon as a carrier, ruthenium metal as an active component and barium, silicon and cerium as auxiliaries. The preparation method of the catalyst comprises the following steps: firstly, carrying out heat treatment on activated carbon in an inert atmosphere and carrying out oxidation treatment in oxygen-containing mixed gas to obtain a heat-treated activated carbon carrier, drying, dipping in a carbonaceous organic matter aqueous solution, and carrying out oxidation treatment in a nitric acid atmosphere; then dipping and introducing barium nitrate and a ruthenium precursor solution, carrying out high-temperature treatment in an inert atmosphere, then adsorbing a silanol ammonia water solution, introducing a silicon component, finally dipping in a cerium nitrate water solution, and reducing to obtain the activated carbon supported ruthenium catalyst. Compared with the heat-treated activated carbon supported ruthenium catalyst prepared by the existing method, the catalyst prepared by the invention has higher ammonia synthesis activity and better application prospect.

The invention relates to a method for the surface treatment of a steel mechanical part in order to increase the wear resistance and corrosion resistance thereof, comprising at least one step of nitriding or nitrocarburizing the part, forming a nitrided surface layer, followed by impregnating the nitrided layer with a solution comprising at least one hydrophobic wax, characterized in that the surface of the nitrided surface layer is coated with the at least one hydrophobic wax, and the at least one hydrophobic wax is coated with the at least one hydrophobic wax. The wax is a carbonaceous organic compound having a molecular weight of less than 500, preferably from 200 to 500.

The invention discloses a method for preparing graphene through laser induction in an inert gas atmosphere. The method comprises the following steps: S1, providing a carbon-containing organic matter precursor material; s2, placing the precursor material in a processing device; s3, inert gas is introduced into the processing device to replace air, and an inert gas protection atmosphere is established; s4, irradiating laser to the surface of the precursor material through a high-transmittance window arranged at the top of the processing device; s5, enabling non-carbon elements in the precursor material to volatilize and escape by utilizing a photothermal effect generated by laser, and rearranging residual carbon atoms to form a graphene structure with a specific graphitization degree; s6, controlling laser parameters including power, scanning speed and path density so as to adjust microscopic characteristics of the formed graphene structure; and S7, taking out the sample after cooling, and engraving to complete the preparation of the graphene material. The graphitization degree, the conductivity and the porosity of the prepared graphene material are remarkably improved.

The invention discloses a method for biosynthesizing four-carbon organic acid by using a one-carbon compound, and belongs to the technical field of bioengineering. According to the invention, a path for synthesizing succinic acid, fumaric acid and malic acid by taking CO2 and formaldehyde as substrates is designed, and an SFMSP path containing six modules is obtained through thermodynamic evaluation and screening of pathase. Through a one-pot experimental method, after 10 hours of catalytic reaction, 1.6 g / L succinic acid, 1.3 g / L fumaric acid and 1.5 g / L malic acid can be produced. The invention successfully realizes a cell-free biosynthesis method for synthesizing succinic acid, fumaric acid and malic acid by taking a monocarbon compound as a substrate.

The present application relates to the technical field of chemical reaction engineering, and particularly relates to application of CO as discharge gas in plasma cracking of carbon-containing organic raw material to prepare conductive carbon black and a method for preparing conductive carbon black. The present application uses CO as discharge gas in plasma cracking of carbon-containing organic raw material to prepare conductive carbon black, which not only effectively solves the problems of low thermal conductivity of part of traditional discharge gas, insufficient cracking of raw material and low carbon black yield, improves process efficiency, but also solves the problem of generation of HCN in cracking of hydrocarbon substances by using N2 as discharge gas, and conforms to the concept of green chemistry. The'secondary heat release' mechanism generated after ionization can solve the problem of insufficient local area heating (additional external heating is needed) in the process of cracking of hydrocarbon substances, and saves process cost. Compared with nitrogen, the more stable voltage fluctuation and smaller cathode ablation rate provide support for industrialization.