37results about How to "Reduce the greenhouse effect" patented technology

The invention discloses a preparation method and application of a high-sensitivity red-mud-based environment-friendly self-sensing concrete strain gauge. The preparation method comprises the following steps: carrying out crushing, grinding and drying pretreatment on red mud; the preparation method comprises the following steps: putting 35 parts of water into a cement mixer, gradually adding 0.4-0.8 part of carbon fibers into the water, stirring until the carbon fibers are uniformly dispersed, adding 100 parts of a cementing material which is composed of cement and red mud, and stirring until the cementing material is uniformly dispersed; a required composite mixture is obtained; pouring the composite mixture into a mold, and embedding a plurality of copper mesh electrodes; putting the mold on an electric vibrator, and vibrating to eliminate bubbles; and demolding, and curing in a standard curing room to obtain the red-mud-based environment-friendly self-sensing concrete strain gauge. According to the invention, the red mud is used as a granular conductive material, the carbon fiber is used as a conductive network structure in a mixed form of a fibrous conductive material, the strain sensitivity is high, the stability is good, the I-shaped strain gauge can be combined with concrete more tightly, and the adaptability to the load environment is high.

The invention provides a preparation method and application of a mixed matrix membrane based on in-situ MOF gel, and relates to the field of gas separation membrane materials. The preparation method comprises the following steps: weighing a certain amount of dry Pebax particles, and dissolving the Pebax particles in an ethanol-water mixed solvent at 90 DEG C to obtain a solution A; dissolving zinc nitrate hexahydrate in an ethanol-water mixed solvent to obtain a solution B; dimethylimidazole is dissolved in an ethanol-water mixed solvent, and a solution C is obtained; adding a certain amount of triethylamine into the solution C, and uniformly mixing; sequentially adding the solution B and the solution C into the solution A, and stirring for reaction to obtain a mixed solution; transferring the mixed solution to a dialysis bag for dialysis; and transferring the dialyzed mixed solution to a polytetrafluoroethylene culture dish, and drying to obtain the mixed matrix membrane. The preparation method provided by the invention is simple and easy to operate, the prepared mixed matrix membrane has good interfacial compatibility with MOF gel, and the MOF loading capacity can be improved, so that the gas separation performance is improved.

The invention discloses a zero-energy-consumption real-time photovoltaic panel passive cooling device, and belongs to the technical field of photovoltaic panel cooling. Zero-carbon operation of the system is achieved while real-time temperature drop of the photovoltaic panel is obtained, water vapor is cooled in time through the micro-channel-Janus micro-membrane, and the operation performance of the photovoltaic panel under various complex climate environment conditions is improved. Comprising a solar evaporative cooling system, a condensation circulating device and a water collecting device, the water collecting device and the condensation circulating device are connected through preset room-temperature cooling water, the cooling water serves as a cold source to promote condensation of water vapor in the condensation system, and waste heat of the system is collected to promote evaporation to provide a humidity environment for a hygroscopic medium. Water on the lower layer is evaporated under the combined action of waste heat of the photovoltaic panel and steam condensation heat release, and formed steam is diffused in the system so that a high-humidity environment can be formed. According to the method for forming high humidity by utilizing waste heat of the photovoltaic panel and steam condensation heat dissipation to evaporate water, the defect that the adsorption capacity of a hygroscopic medium is low under low humidity is fundamentally avoided.

The invention relates to the technical field of organic synthesis, in particular to a synthesis method of a pesticide intermediate difluopyrazole acid.The difluopyrazole acid is generated through CO2 carboxylation reaction of 3-difluoromethyl-1-methylpyrazole, bromination reaction is not needed, generation of toxic waste liquid is reduced, and the synthesis method is environmentally friendly. The method has the advantages of high reaction yield, high product purity, certain industrial application prospect, full utilization of CO2, and contribution to reduction of CO2 emission and mitigation of greenhouse effect.

The invention relates to the technical field of organic synthesis, and in particular to a method for synthesizing difluoropyrazole acid, a pesticide intermediate. The difluoropyrazole acid is prepared by subjecting 3-difluoromethyl-1-methylpyrazole to a CO2 carboxylation reaction. The method does not require a bromination reaction, thereby reducing the generation of toxic waste liquid, and has relatively high reaction yield and product purity. The method has certain industrial application prospects, and fully utilizes CO2, thereby contributing to reducing CO2 emissions and alleviating the greenhouse effect.

The invention discloses a method for producing carbon dioxide from high-concentration carbon dioxide and a special device thereof, and belongs to the technical field of air pollution prevention and new energy. According to the technical scheme, the method comprises the following steps: inputting high-concentration carbon dioxide into a special device, and cracking water under the action of a ferroheme molecular dimer to generate electrons, hydrogen protons and oxygen; carbon dioxide reacts with electrons and hydrogen protons to generate carbon monoxide and water, and an energy field is generated; carbon monoxide continues to react with electrons and hydrogen protons to generate elemental carbon and water, and an energy field is generated; and reacting the elemental carbon with carbon monoxide under the action of an energy field to generate carbon dioxide. Compared with the prior art, the method has the prominent substantive characteristics and remarkable progress of being novel in technical scheme, reliable in technology, free of secondary pollution, high in investment efficiency and quick in effect taking.

The application discloses a kind of based on carbon-nitrogen ratio phased regulation and control of soil carbon-increasing fertilization method of flora and its application in rice planting.The method carries out pre-rotting to rice straw and pig manure under the condition of phased carbon-nitrogen ratio, controls carbon-nitrogen ratio to be (25-28):1 in the first stage to promote carbon-fixing flora proliferation, adjusts carbon-nitrogen ratio to be (30-32):1 in the second stage to promote nitrifying bacteria group activation, and the obtained pre-rotted material is applied as base fertilizer into paddy field, and is based on the abundance monitoring result of soil carbon-fixing flora and nitrifying bacteria group during the rice growth period to carry out topdressing regulation and control.The application realizes the synergistic enrichment of paddy field carbon-fixing flora and nitrifying bacteria group by phased carbon-nitrogen ratio regulation and control, significantly improves soil organic carbon content while effectively reducing greenhouse gas emissions, improves rice yield and nitrogen utilization rate, and establishes a feedback control mechanism based on flora monitoring, to ensure the sustained and stable fertilization effect.

The invention discloses a recovery system for diffused hydrogen of a hydrogen refueling station, and the system comprises a filling module which comprises a hydrogen refueling machine and a hydrogen refueling gun which are connected with each other; the recovery port is positioned on a hydrogenation gun of the hydrogen refueling station; an electric energy conversion module is arranged in the electric pile module, the input end of the electric energy conversion module is connected with the recovery port, residual hydrogen in the hydrogenation gun is recovered, and the residual hydrogen is converted into electric energy; the power supply module comprises at least one energy storage module, and the energy storage module is connected with the output end of the electric energy conversion module and stores the electric energy generated by the electric energy conversion module so as to supply power to at least one power utilization end; and the controller is in communication connection with the filling module, the electric pile module and the power supply module so as to control the working process of the whole recovery system. The invention further provides a recovery method for the diffused hydrogen of the hydrogen refueling station. The device and the method have the beneficial effects that the hydrogen remaining in the hydrogenation gun is recycled, the advantages of the hydrogen in the aspect of energy utilization are exerted, and the greenhouse effect generated by hydrogen emission is reduced.

The invention provides a power transaction method based on carbon emission and related equipment, and relates to the technical field of power transaction. The method comprises the steps that electric power data and carbon emission data are acquired, the electric power data comprise target production electric quantity information, power supply configuration information and electric power transmission line information in a preset time of a target area, and the carbon emission data comprise electric power transmission carbon emission quota information, carbon emission source information and carbon emission path information in the target area; determining a target power transmission line according to the power data and the carbon emission data; and purchasing the target power transmission right according to the target power transmission line. According to the power data and the carbon emission data, the power transmission line is planned, the corresponding power transmission right is purchased according to the power transmission line determined through planning, under the condition that power production and power transmission are guaranteed, the carbon emission in the power production and transmission process is reduced, environment protection is facilitated, and the greenhouse effect is relieved.

The invention provides a double-circulation combined power system of a split-flow heat storage type X-type rotor engine, which comprises the X-type rotor engine, the X-type rotor engine takes pure hydrogen as fuel, high-temperature tail gas of the X-type rotor engine is split into two parts through a split-flow valve II and then is introduced into an EGR (Exhaust Gas Recirculation) system, and the EGR system is connected with an external motor. The X-type rotor engine is adopted to solve the problems that a Wankel rotor engine is high in oil consumption, prone to abrasion and leakage and the like, and meanwhile pure hydrogen serves as fuel, so that oxycarbide emission and SOOT emission generated by combustion of traditional fossil fuel can be directly eliminated. And with the assistance of an EGR tail gas circulating system, NOx pollutant emission can be further reduced while the indicating heat efficiency of the engine is improved, tail gas waste heat of the rotor engine can be stored, power generation is conducted through the tail gas waste heat, and therefore the heat efficiency of a power system is further improved.

The application provides a kitchen system, which uses exhaust gas of a power equipment to heat a clean water source combined by condensate water of an air conditioning system and hot condensate water of a steam heating equipment, turns waste into treasure, generates heat energy, heats drinking water, rice or dishes, is healthier for human body, protects cabin environment of the kitchen, and the secondary use of the hot water source can also clean and extinguish the exhaust gas and drainage system of the kitchen, and can also heat the condensate pipe of the air cooler in the food freezer and the pipe system in the low-temperature environment such as the air cabin of the two outer wings or the open deck, so that the pipe system does not freeze. The kitchen system circulates and uses the exhaust gas of the power equipment, the condensate water of the air conditioning system and the hot condensate water of the steam heating equipment, thereby reducing the electric load of the ship, conforming to the green and low-carbon development trend of the ship industry, and effectively overcoming the shortcomings in the prior art and having high industrial utilization value.

This invention relates to the field of industrial exhaust gas purification and gas utilization technology, specifically to a system and method for separating and reusing flue gas components. The system includes a flue gas treatment skid-mounted module, a flue gas recovery skid-mounted module, and a solid product generation skid-mounted module. The flue gas treatment skid-mounted module includes a denitrification unit, a dust removal unit, a desulfurization tower, and a CO2 capture unit connected in sequence. The flue gas recovery skid-mounted module includes an air separation unit and a CO2 regeneration unit. The solid product generation skid-mounted module includes a carbonization reactor and an oxidation reactor. This invention achieves the capture, purification, and high-value utilization of CO2 from industrial flue gas to prepare nano-calcium carbonate through integrated skid-mounted modules, resulting in high gas utilization efficiency, excellent application effects, and high product economics.

The present application provides a cold source generating device and a refrigeration equipment. The piston is controlled to reciprocate by a driving unit. When the pressure in the negative pressure chamber is reduced to a certain value, the water in the water storage chamber boils and generates water vapor, and the water vapor enters the negative pressure chamber through the channel formed by the water baffle and the retaining ring. Then the piston descends, and the water baffle abuts against the retaining ring under the piston pressure, deadweight and elastic pull of the first elastic member, and the negative pressure chamber is disconnected from the water storage chamber; the valve unit controls the exhaust pipe to be connected with the negative pressure chamber, and the water vapor in the negative pressure chamber is discharged by the exhaust pipe, and the heat of the remaining water in the water storage chamber is taken away by the water vapor, forming a cold source with a lower temperature and can be used for refrigeration. Therefore, the refrigeration equipment using the cold source generating device realizes refrigeration by replacing the traditional refrigerant with cold water, and the pollution to the environment is small; and the boiling point of water at negative pressure is low, the temperature of the water vapor formed is also low, and the heat release to the outside is small, which can effectively reduce the heat island effect and the greenhouse effect.

The invention provides a method for preparing rutile type titanium dioxide, which comprises the following steps: S10, adding metatitanic acid and a first rutile type titanium dioxide primary product into water, and pulping to obtain a pulped material; s20, adding a salt treatment agent into the pulped material to obtain mixed slurry; and S30, introducing the mixed slurry into a microwave oven, and calcining to obtain a second rutile type titanium dioxide primary product. The method has the advantages of being simple in technological process, high in technological efficiency, capable of saving energy, environmentally friendly and the like, has the large-scale condition and is clean energy. After future popularization and application, the efficiency of producing titanium dioxide by a sulfuric acid method can be improved, the greenhouse effect is reduced, and the purpose of green production is achieved.

The invention provides a modification and repair combined waste lithium ion battery graphite negative electrode material regeneration method, which is characterized by comprising the following steps: soaking a waste lithium ion battery in a saturated salt solution, completely discharging, and disassembling to obtain a graphite negative electrode sheet; then soaking the graphite negative electrode plate in a mixed solution of deionized water and absolute ethyl alcohol, carrying out suction filtration on the graphite negative electrode material filtrate to obtain a filter cake, washing the filter cake with water, drying and grinding to obtain graphite powder; the graphite powder is subjected to acid leaching treatment and then diluted; and adding a nitrogen source modification reagent into the diluted mixed solution, carrying out suction filtration on the obtained mixed solution of the modified graphite material to obtain the modified graphite material, drying, grinding, putting into a tubular furnace, heating in an inert gas atmosphere, carrying out heat preservation, and cooling to room temperature to obtain the modified graphite negative electrode active material. The method is simple in production process, low in reagent and environment cost and low in energy consumption, and has positive significance on recycling treatment of retired batteries.

The invention discloses a preparation method of a coordination polymer containing CuII and research on the inhibition effect of the coordination polymer on soil urease and nitrifying bacteria, and relates to the technical field of fertilizer.The preparation method comprises the steps that 3-aminopyridine and fumaric acid serve as raw materials to synthesize N1, N4-bis (3-pyridyl)-2-butenamide, then CuCl2. 2H2O and the synthesized N1, N4-bis (3-pyridyl)-2-butenamide are used for preparing the coordination polymer containing CuII. The novel coordination polymer [Cu (3-bbpa) (5-HIPA). H2O] is synthesized from N, N, N, N ', N'-bis (3-pyridyl)-2-butenamide and 5-hydroxyisophthalic acid by a hydrothermal method, and the crystal structure of the novel coordination polymer [Cu (3-bbpa) (5-HIPA). H2O] is analyzed to research the influence of the novel coordination polymer as an inhibitor on soil urease and nitrifying bacteria. The difunctional inhibitor is studied to delay the conversion process of urea from urea nitrogen to ammonium nitrogen and ammonium nitrogen to nitrate nitrogen, overcomes the defect of single inhibition capability of a traditional inhibitor, is strong in inhibition capability, low in toxicity, low in cost and simple in synthesis method, can effectively improve the utilization rate and stability of the fertilizer urea, and has a wide application prospect. Nitrogen loss in agricultural activities is reduced, the fertilization cost is reduced, and the grain yield is increased.

The utility model discloses a low-emission safety type cold and hot combined heat supply recovery system which comprises a compressor, a heat recovery heat exchanger, a first throttling device, a four-way valve, a condenser, a second throttling device, an evaporator, a heat preservation water tank, a circulating pump, a water inlet insulation valve and a water outlet insulation valve. The cold and heat combined supply system which is simple in pipeline process and low-pressure in operation of the condensing evaporator is used for heat recovery, refrigerant leakage risk and leakage during operation of the system can be reduced, greenhouse effect is relieved, safety, reliability and cost performance of the system are improved, and energy is saved.

The application discloses a kind of hydrocarbon conversion method and device, belong to coal bed gas technical field.The present application solves the problem that coal gas layer cannot fully play its resource value in prior art, including the following steps: step S1: raw gas is subjected to oxygen removal process in one-stage conversion, and raw gas A is obtained;Step S2: the obtained raw gas A is boosted, and raw gas B is obtained;Step S3: raw gas B is subjected to desulfurization, and desulfurized gas C is obtained;Step S4: desulfurized gas C is transported into the furnace tube of two-stage conversion furnace for hydrocarbon steam conversion reaction, and conversion gas D is obtained;Step S5: conversion gas D is transported into three-stage conversion furnace, and deep conversion reaction of methane is carried out, and conversion gas E is obtained;Step S6: after heat recovery, synthesis gas is obtained from conversion gas E.The present application provides three-stage conversion technology of hydrocarbon in view of the characteristics of high oxygen and nitrogen content in coal bed gas, solves the safe utilization problem of oxygen contained in coal bed gas and the problem of greenhouse gas emission polluting the environment.

The utility model discloses a shaping waste gas combustion treatment system, aims at providing a shaping waste gas combustion treatment system who can reduce energy consumption, reduce pollution emission and carbon emission. It includes workstation, a plurality of drying oven, waste gas incinerator, heat exchanger, waste heat recovery ware and exhaust pipe, is installed with burner in waste gas incinerator, and drying oven and exhaust pipe are connected with the upper end of workstation, and waste gas incinerator, heat exchanger, waste heat recovery ware are connected with the lower end of workstation, and workstation is equipped with waste gas inlet pipe and heat recovery pipe, and waste gas inlet pipe and heat recovery pipe all are installed with power fan, and one end of waste gas inlet pipe is connected drying oven, and the other end of waste gas inlet pipe is connected heat exchanger, and one end of heat recovery pipe is connected drying oven, and the other end of heat recovery pipe is connected waste heat recovery ware. The utility model has the beneficial effect of: realize energy saving and emission reduction and reduce pollution and carbon; operation efficient and green environmental protection; system compact, path saving and gas efficient flow.

The invention belongs to the technical field of constructed wetlands, and provides a method for reducing greenhouse gas emission in a freezing and thawing period of a constructed wetland in a cold region. Before the constructed wetland enters the freezing and thawing period, the surface of the constructed wetland is covered with the snow quilt with the thickness of 20-30 cm, the water content of a matrix in the freezing and thawing period can be increased, the oxidation-reduction potential (ORP) can be reduced, the anaerobic environment can be created, microbial metabolism can be regulated and controlled, aerobic respiration and nitrogen circulation can be inhibited, anaerobic fermentation and a methanogenesis pathway can be promoted, emission of CO2 and N2O and the global warming potential (GWP) can be reduced, and the constructed wetland has the advantages of being capable of improving the water content of the matrix in the freezing and thawing period. The greenhouse effect can be relieved. Meanwhile, accumulation of fungus residues is promoted through the arrangement of the snow quilt, accumulation of bacterial residues is reduced, and the stability of matrix organic carbon and the carbon sequestration function of the constructed wetland are enhanced. Finally, the method provided by the invention makes up the vacancy in the artificial wetland management in the freezing and thawing period in the prior art, and expands the management and application range of the artificial wetland.

The present invention discloses an intelligent optimization design method and device for a building site for reducing the intensity of heat islands, and relates to the field of intelligent building planning and design technology. The method comprises: determining the heat island intensity significant area in the building site according to the building characteristics and environmental data set of the building site; for each heat island intensity significant area, determining the green space characteristics matching the heat island intensity significant area according to the regional building characteristics of the heat island intensity significant area; updating the building characteristics of the building site according to all the green space characteristics, and if such update reduces the heat island intensity of the building site, then generating an optimized design scheme for the building site based on such update. It can be seen that the present invention can intelligently determine an optimized design scheme that effectively reduces the heat island intensity of the building site, so as to improve the reliability of the generated building site optimized design scheme, thereby effectively reducing the greenhouse effect of the building site.

The application provides a sewage treatment plant CO2 capture system and method, which comprises a biological reaction chamber, an adsorber and a cold / heat source pipeline, and the adsorber is filled with solid adsorbents; the air inlet of the biological reaction chamber is communicated with mixed gas, the air outlet of the biological reaction chamber is communicated with the air inlet of the adsorber, and the air outlet of the adsorber is connected with a CO2 product tank; the cold / heat source pipeline comprises a water source heat pump, the water source heat pump is communicated with regenerated water, and the water outlet of the water source heat pump, the adsorber and the water inlet of the water source heat pump are sequentially communicated through pipelines and valves to form a loop. The non-CO2 greenhouse gas is converted into CO2 through the biological reaction chamber, the adsorption is carried out through the adsorber, the CO2 is captured through the cold / heat source pipeline, the resource recycling is carried out, and the economic benefit rate is improved. The cold / heat source pipeline is connected with the regenerated water, the low-grade energy contained in the sewage is fully utilized, the low-temperature heat energy is transferred to high-temperature heat energy, the energy consumption is reduced, and the operation cost of the sewage treatment plant is reduced.

The present invention discloses a temperature difference power generation device based on radiation cooling and a preparation method thereof. The device takes a sheet-like temperature difference power generation element as the core, and its cold end is attached to a film-like radiation cooling element. Through radiation cooling, space cold sources are used to achieve all-day cooling. The hot end of the temperature difference power generation element is attached to a plate-like thermal conductive element. The thermal conductive element has a large area and can be set on any flat object outdoors. During the day or on sunny days, the thermal conductive element is used to absorb solar radiation to heat the temperature difference power generation element and the surface near the thermal conductive element at the same time. The heat is retained until night to enhance the power generation effect at night. On cloudy days or at night, the thermal conductive element can absorb nearby waste heat to heat the power generation sheet, so that a temperature difference can be formed on both sides of the temperature difference power generation element in all weather / all seasons, and a voltage is output to the load based on the Seebeck effect.

The invention belongs to the technical field of optical thin films, and discloses a sodium water glass-based anti-reflection film and a preparation method thereof, and the preparation method comprises the following steps: 1) diluting sodium water glass, dropwise adding hydrochloric acid to adjust the pH value, stirring for reaction, and standing for aging to obtain aqueous silicon dioxide sol; (2) immersing the substrate into the water-based silicon dioxide sol, and pulling the substrate out of the water-based silicon dioxide sol to form a silicon oxide wet film on the surface of the substrate; 3) naturally drying the wet silicon oxide film in the air, cleaning with water, and drying by nitrogen flow to obtain a silicon oxide film; and 4) heating the silicon oxide film and carrying out heat treatment to obtain the sodium water glass-based anti-reflection film. The water-based silicon dioxide sol is prepared by taking sodium water glass as a precursor, water as a solvent and hydrochloric acid as a catalyst, so that the anti-reflection film is further prepared, and compared with an anti-reflection film prepared by an organic system, the cost and the environmental pollution can be reduced.

The invention provides a coal bed gas mining method by injecting flue gas into a waste mine and a separation and purification method thereof. A proper target area is selected for coal bed gas mining; the flue gas for injection is obtained after being collected and treated from a factory which discharges the flue gas containing a large amount of CO2; after an injection system and a coalbed methane extraction system are arranged on the ground above a goaf, coalbed methane originally existing in the goaf is extracted and collected; after the primary extraction is finished, injecting flue gas to displace the coal bed gas in the goaf, extracting again after a period of time, and circulating until the coal bed gas extraction work is finished; the extracted coal bed gas is treated by a first separation and purification device, and the treated mixed gas of CH4, N2 and the like enters a pressure swing adsorption separation and purification device for CH4 concentration; and after the extraction work is finished, the goaf is closed, and the injected smoke is sealed in the goaf. According to the method, flue gas utilization and CO2 capture and storage are both considered, operation is easy, economical and feasible, and the method is a green and safe coalbed methane exploitation mode.

The invention relates to the technical field of carbon dioxide geological sequestration, and discloses a method, a system, equipment and a medium for evaluating the carbon dioxide sequestration amount of a salt water reservoir, which are used for evaluating the carbon dioxide sequestration amount of the salt water reservoir by combining well drilling data, seismic data and geological data, fully considering the effectiveness and quality difference of the salt water reservoir and adopting a step-by-step progressive geological evaluation mode. Objective and accurate carbon dioxide geological sequestration quantity evaluation is carried out on different layer sections and the whole of the deep saline water layer, reliable data guidance can be provided for carbon dioxide geological sequestration, and the greenhouse effect is effectively promoted and relieved.

The present invention provides a carbon capture peak-shaving coupling device and method, including a renewable energy power generation system, an air carbon capture system and a CO2 compression energy storage system. The air carbon capture system includes an air compression device, a CO2 absorption device, a CO2 regeneration device, and a CO2 gas storage device connected in sequence; the CO2 compression energy storage system includes a second CO2 compression device, a motor unit, a second heat exchange device, a CO2 liquid storage device, an expander, and a generator set connected in sequence. When the renewable energy power generation system has abandoned power output, the air carbon capture system is driven to work, and CO2 is directly captured from the air by chemical absorption. The captured CO2 is stored in the CO2 compression energy storage system by phase change to achieve the purpose of renewable energy power generation peak-shaving, thereby achieving the dual benefits of excess power resource allocation and utilization and CO2 emission reduction.

The invention relates to the technical field of tunnel fireproof materials, and provides a graphite-phase carbon nitride fireproof coating as well as application and an application method thereof. The coating comprises the following components in parts by mass: 40-60 parts of alkali-activated cement, 2-4 parts of redispersible latex powder, 2-4 parts of polyvinyl alcohol, 11-14 parts of expanded vermiculite, 11-14 parts of expanded perlite, 5-7 parts of sepiolite, 1-3 parts of hollow floating beads, 2-4 parts of magnesium hydroxide, 5-8 parts of aluminum hydroxide and 0.5-2 parts of g-C3N4. The graphite-phase carbon nitride fireproof coating provided by the invention has excellent fireproof performance, cracking resistance, working performance, impermeability, thermal stability and chemical stability, the bonding strength reaches 0.31 MPa, the fire endurance reaches 3.1 h, and the efficiency of removing NOx through visible light catalysis reaches 232 [mu] mol / (h.m < 2 >).

The invention relates to the technical field of green methanol preparation processes, in particular to a controllable micro-channel reactor green methanol preparation method based on low-temperature plasma activation, which comprises the following steps: (1) preparing a micro-channel reactor; (2) preparing a catalyst, wherein the catalyst comprises a main catalyst Cu / ZnO / Al2O3 and a cocatalyst rare earth doped CeO2; (3) preparing a micro-channel wall surface coating; (4) generating low-temperature plasma; (5) introducing a mixed gas of CO2, H2 and Ar into the microchannel reactor, and reacting at the temperature of 120-180 DEG C and the pressure of 3-5 MPa at the air speed GHSV of 5000-10000 h <-1 >; (6) adjusting reaction parameters in real time by adopting an intelligent control system; and (7) obtaining a high-purity methanol product, and realizing efficient activation of CO2 and H2 under relatively mild conditions by adopting a dielectric barrier discharge (DBD) plasma technology.

The invention discloses a preparation method of a low-temperature lithium ion battery negative electrode material, the negative electrode material comprises a porous carbon material and a carbon nanomaterial coated on the porous carbon material, the preparation method comprises the following steps: 1, preparing a precursor solution; 2, adding a carbon material and a precipitant into the precursor solution for post-treatment; 3, activating at high temperature; 4, methane cracking reaction; 5, hydrochloric acid etching; the method for preparing the battery by adopting the negative electrode material comprises the following steps: 1, preparing a positive electrode piece from a lithium cobalt oxide material, PVDF (Polyvinylidene Fluoride) and a conductive agent; 2, manufacturing a negative pole piece from the negative pole material, SBR (Styrene Butadiene Rubber) and CMC; and 3, isolating the positive pole piece from the negative pole piece, and adding an electrolyte. The negative electrode material disclosed by the invention is prepared by adopting an ion impregnation method, methane in-situ cracking and acid etching, has a multi-aperture structure, improves the discharge platform voltage and discharge capacity of the negative electrode material in a low-temperature environment, and is suitable for a low-temperature lithium ion battery; the battery manufacturing method is simple and high in production efficiency.