280 results about "Adsorption reaction" patented technology

The invention discloses a method for deeply removing readily oxidizable substances in high-purity electronic-grade phosphoric acid, which deeply removes the readily oxidizable substances in the high-purity electronic-grade phosphoric acid in a mode of combining ozone oxidation and resin adsorption to obtain a high-purity electronic-grade phosphoric acid finished product with extremely low readily oxidizable substance concentration. The specific process mainly comprises the following three steps: S1, introducing ozone gas at a certain temperature to oxidize readily oxidizable substances such as phosphorous acid and hypophosphorous acid in phosphoric acid into phosphoric acid so as to reduce the concentration of the readily oxidizable substances; s2, feeding the phosphoric acid subjected to ozone oxidation into an adsorption reactor to be in contact with an adsorbent, and further removing residual readily oxidizable substances in the phosphoric acid; and S3, filtering the phosphoric acid subjected to adsorption treatment through a filter element for separation, and removing residual small particles and impurities to obtain the electronic-grade phosphoric acid with readily oxidizable substances removed. The method is simple in process, controllable in condition, convenient to operate, safe and environment-friendly, does not need to add an additional solvent, avoids introduction of new impurities, reduces secondary pollution, and is suitable for preparing high-purity electronic-grade phosphoric acid.

The invention discloses a multi-stage carbon dioxide capture and utilization method and device. CO2-containing high-temperature flue gas enters an adsorption reactor and passes through the adsorption reactor filled with a bifunctional catalyst, and CO2 in the flue gas is adsorbed and captured by a catalytic material in a catalyst bed layer; decarburized gas comes out of the adsorption reactor, exchanges heat with process gas from the conversion reactor in a heat exchanger, and enters the next stage of adsorption reactor after heat exchange, when the adsorption reactor reaches the saturated adsorption capacity of an adsorbent, CO2-containing high-temperature flue gas is switched to enter the first stage of conversion reactor, at the moment, reducing gas enters the adsorption reactor, and the CO2-containing high-temperature flue gas enters the second stage of conversion reactor; and the converted synthesis gas is sent out of the device. By means of the technical process, the energy utilization rate can be fully increased, the emission reduction cost can be effectively reduced, high energy consumption caused by trapping cooling / conversion heating can be avoided, and the problems of high cost for purification and transportation after CO2 capture and potential safety hazards caused by burying are solved.

The invention discloses a gas-sensitive material based on double noble metal doped holmium iron oxide and application of the gas-sensitive material to detection of hydrogen sulfide in a sulfur-containing ore body exploration environment, and relates to the technical field of gas-sensitive materials. HoFeO3 is used as a substrate material, and two elements of Au and Pt are used for doping modification of the HoFeO3 to prepare the gas sensitive material based on double noble metal doped holmium iron oxide. Au and Pt are combined to perform doping modification on HoFeO3, a synergistic effect is achieved on improving the temperature stability of the gas-sensitive material, the sensitivity of the gas-sensitive material in a high-humidity environment can be improved, in addition, due to the synergistic catalysis effect of Au and Pt, an energy barrier of H2S adsorption reaction can be remarkably reduced, surface electron transfer and reaction activity are promoted, and the sensitivity of the gas-sensitive material in a high-humidity environment is improved. Therefore, the working temperature is reduced, the response value is improved, and the method is suitable for detecting hydrogen sulfide gas in a sulfur ore body exploration environment.

The invention provides a carbon dioxide capture system based on a calcium-based granular material and a control method of the carbon dioxide capture system. The system comprises a reactor, a decomposition bin, a conveying branch and an input branch, the input branch inputs raw flue gas to the reactor; the conveying branch conveys a calcium-based particle material to the reactor by using the heated flue gas; the reactor is used for controlling the internal temperature by selecting the raw flue gas input by the input branch so as to control the adsorption reaction; the decomposition bin is used for controlling the movement of the supporting plate under the mechanical action and the air pressure action so as to guide the flowing of the materials and further control the desorption reaction. A set of complete and ingenious heat circulation process and material circulation process is constructed, the circulation processes are linked with each other, the structural design is ingenious and practical, and while efficient adsorption and desorption of carbon dioxide are guaranteed, the energy utilization efficiency is improved, the energy consumption is reduced, and the equipment maintenance cost and the energy purchase cost are reduced.

The utility model relates to the technical field of wastewater deep equipment, and mainly discloses a collaborative deep treatment system for multiple pollutants in industrial wastewater. Comprising a regulating tank, a catalytic mixing reactor, a catalytic reaction tank, a primary neutralization reaction tank, a defluorination reaction tank, a secondary neutralization reaction tank, an enhanced adsorption reaction tank, a flocculation reaction tank, a sedimentation tank, a deep oxidation reaction tank, a filter tank and a clean water tank which are sequentially connected, and each reaction tank is provided with a corresponding feeding system; the system also comprises an on-line detection system and a central control system, can synchronously realize collaborative removal of various pollutants and high integration of the system, and can timely adjust operation parameters and realize automatic operation of the system according to changes of water quality and water quantity by virtue of response coordination of the on-line detection system and the central control system. The advanced treatment requirements of wastewater with different water qualities are met while the treatment cost is reduced.

Adsorbent reactors for removing carbon dioxide (CO2) from the atmosphere with several types of sealing door valves, ranging from a single valve element to multiple valve elements, are provided. The sealing door valves are configured to open to allow gases into the reactor, such as allowing ambient air to enter during adsorption, and can close to seal the reactor, such as allowing vacuum conditions to be created inside the reactor and / or steam to be injected into the reactor during desorption. The valves are designed to create minimum resistance to valve motion, minimum obstruction to gas flow when open, minimum allowance of fluid passage when closed, and to minimize dead space within the reactor.

The invention relates to the technical field of radionuclide separation, in particular to an Eu (III) / An (III) separation method based on a zirconium phosphonate-based metal organic framework adsorbent, which comprises the following steps: adding the zirconium phosphonate-based metal organic framework adsorbent into an Eu (III) and / or An (III) nuclide-containing aqueous solution with the acid concentration of 0.001-3M to carry out adsorption reaction, and then carrying out solid-liquid separation, wherein the zirconium phosphonate-based metal organic framework adsorbent is a zirconium phosphonate-based metal organic framework material exchanged by metal cations M; the metal cation M is selected from one of alkali metal ions, alkaline earth metal ions or divalent transition metal ions. According to the invention, the interlayer chemical properties of the material are regulated and controlled through ion exchange, so that the adsorbent has ultrahigh selectivity, rapid adsorption kinetics, high adsorption capacity and excellent structural stability on trivalent actinide / simulated nuclides in extremely high-acid, high-salt and intense-radiation environments; the key problems of low separation efficiency and poor stability in a high-acid complex system in the prior art are solved, and the method is suitable for treating high-level liquid waste.

The invention belongs to the field of flue gas treatment, and provides a purification treatment system and method for lepidolite roasting flue gas. The purification treatment device comprises a pre-dedusting device, a first-stage moving bed reactor, a second-stage fluidized bed reactor, a third-stage dedusting reactor and an induced draft fan which are connected in sequence, wherein the pre-dedusting device is used for carrying out pre-dedusting treatment on roasting flue gas; the first-stage moving bed reactor is used for carrying out first-stage adsorption reaction treatment on pollutants in the pre-dedusted flue gas; the second-stage fluidized bed reactor is used for carrying out second-stage adsorption reaction treatment on pollutants in the flue gas-particle mixture I generated by the first-stage moving bed reactor; and the third-stage dust removal reactor is used for carrying out third-stage adsorption reaction and dust removal treatment on pollutants in the flue gas-particle mixture II generated by the second-stage fluidized bed reactor. According to the method, various pollutant components in the lepidolite roasting flue gas can be effectively removed, and secondary pollution problems such as waste water and chimney rain do not exist in the flue gas purification treatment process.

The invention discloses an internal circulating fluidized bed and method for calcium cycle catalytic methane dry reforming, the internal circulating fluidized bed comprises an outer reactor and an inner reactor, the outer reactor sleeves the inner reactor, and the inner part of the inner reactor is used as a carbon capture zone for carbon dioxide adsorption reaction; an area between the inner reactor and the outer reactor is used as a carbon conversion area for methane dry reforming and catalyst regeneration reaction; the bottoms of the carbon capture area and the carbon conversion area are communicated through a circulating feed port, a discharge port in the top of the carbon capture area is connected with a gas-solid separator, and a solid outlet of the gas-solid separator is connected with the carbon conversion area; the bottom of the inner reactor is provided with a waste gas inlet and an air distribution plate, the bottom of the side wall of the outer reactor is provided with a raw material gas inlet, and the top of the outer reactor is provided with a synthesis gas outlet and a material supplementing port; by adopting the internal circulating fluidized bed technology, the problem of discontinuous reaction of a fixed bed reactor is solved, the continuous and stable proceeding of the calcium circulating methane dry reforming reaction is realized in the same reactor, and the production efficiency is remarkably improved.

The invention aims to provide a method for preparing micron-sized zinc metastannate by wet recovery of tin and zinc in electronic wastes and a synthetic method of 4-hydroxy-1-indanone, and belongs to the technical field of metal recycling. According to the method, amino coordination and carboxylic acid chelation are utilized, tin and zinc in the electronic waste are selectively leached out under the mild acidic condition, impurity metals such as iron and copper are retained in residues due to the difference of complexing constants, and metal ion grade separation (selectivity gt and 99%) is achieved. And then, through evaporation-crystallization regulation and control, the Sn-Zn complex is directionally reconstructed into micron-sized zinc metastannate. In indanone synthesis, micron-sized zinc metastannate forms a local protonic acid environment by adsorbing trace moisture in a reaction system, synchronously activates a C = N bond (Lewis acid site catalysis) of an imine substrate and stabilizes a cyclization transition state (hydrogen bond guiding effect), so that the activation energy of [4 + 1] cycloaddition reaction is reduced, reaction equilibrium is driven to move towards a product end, and the yield of indanone is increased. And quantitative conversion of indanone under mild conditions (the yield is 60%) is realized.

The utility model discloses a helium dehydrogenation and purification device taking air as regenerated gas. The helium dehydrogenation and purification device comprises a catalytic dehydrogenation reactor, a first adsorption reactor and a second adsorption reactor, a refrigerant of the heat exchanger is connected with a feed gas source and a compressed air source, a refrigerant outlet of the heat exchanger is connected with an inlet of the catalytic dehydrogenation reactor, an outlet of the catalytic dehydrogenation reactor is connected with a heating medium inlet of the heat exchanger, and a heating medium outlet of the heat exchanger is connected with an inlet of the steam-water separator; inlets of the first adsorption reactor and the second adsorption reactor are connected with an outlet of the steam-water separator and a regenerated waste gas outlet; outlets of the first adsorption reactor and the second adsorption reactor are connected with a product gas outlet and a compressed air source; a hydrogen analyzer and a flow meter are arranged on a pipeline for connecting a refrigerant inlet of the heat exchanger with the feed gas source, and a flow controller and a flow control valve are arranged on a pipeline for connecting the refrigerant inlet of the heat exchanger with the compressed air source; the flow controller is electrically connected with the hydrogen analyzer and the flow meter and can control the opening degree of the flow control valve. The problem that hydrogen-containing gas cannot be provided as regeneration gas in most helium catalytic dehydrogenation purification scenes is solved.

The invention discloses a preparation method and application of a modified zeolite filter material for intensively and synchronously removing dissolved manganese and ammonia nitrogen in surface water, and aims to solve the problems that two pollutants, namely manganese and ammonia nitrogen, cannot be synchronously removed by an existing manganese removal process, and the cost of natural manganese sand is relatively high. The preparation method of the modified zeolite filter material comprises the following steps: 1, sieving clinoptilolite; 2, dipping the screened clinoptilolite in a dilute nitric acid solution; 3, putting the initial zeolite into a bivalent manganese salt solution with the concentration of 0.2-0.5 mol / L, and carrying out oscillation adsorption treatment; and 4, immersing the zeolite particles adsorbed with the divalent manganese into a mixed solution of permanganate and sodium hydroxide for adsorption reaction, and washing and drying to obtain the modified zeolite filter material. The modified zeolite filter material is used as a filter material for surface water treatment, two pollutants of manganese and ammonia nitrogen can be rapidly and effectively removed, the removal rate of manganese ions in water can reach 95%, and the removal rate of ammonia nitrogen can reach 90% or above.

The invention relates to a method for extracting lithium from a lithium-containing sodium aluminate solution and preparing lithium carbonate, and belongs to the technical field of lithium recovery. The method comprises the following steps: adding an extracting agent into a lithium-containing sodium aluminate solution, and carrying out extraction reaction to obtain a lithium-removed sodium aluminate solution and a lithium-rich extracting solution; carrying out reverse extraction on the lithium-rich extraction liquid by taking water as a reverse extraction agent to obtain a lithium-containing solution; adding activated aluminum oxide into the lithium-containing solution, and carrying out adsorption reaction to obtain solid-phase aluminum oxide; eluting the solid-phase aluminum oxide with acid to obtain a lithium-rich solution; and adding a carbon source into the lithium-rich solution, and sequentially precipitating, separating and washing to obtain lithium carbonate. According to the method, a complex impurity removal process does not need to be carried out on the lithium-containing sodium aluminate solution, the high-concentration lithium salt solution is obtained after the lithium ions are directly extracted from the lithium-containing sodium aluminate solution and then are subjected to reverse extraction, adsorption and desorption, and industrial-grade lithium carbonate can be obtained by supplementing a carbon source, so that the preparation cost of the lithium carbonate is greatly reduced. The method has the advantages of good selectivity, high recovery rate, cyclic continuous production, economy and environmental protection.

The invention relates to the technical field of wastewater treatment, and discloses a high-salinity wastewater treatment method and system combined with a salt-tolerant strain. The invention discloses a high-salinity wastewater treatment method combined with a salt-tolerant strain. The method comprises the following steps: biodegradation treatment: biodegrading organic pollutants in wastewater by using the salt-tolerant strain; adsorption treatment: feeding the wastewater into an adsorption reactor, and adding an adsorbent to adsorb dissolved salt in the wastewater; ion exchange treatment: feeding the treated wastewater into an ion exchange column, and realizing effective exchange removal of sodium ions, calcium ions and magnesium ions by using a combination of strong acid type resin and strong alkali type resin; and evaporative crystallization: further concentrating and crystallizing to obtain recoverable salt. The high-salinity wastewater treatment method and system combined with the salt-tolerant strain can be widely applied to high-salinity industrial wastewater, such as the fields of petroleum, chemical engineering, metallurgy, electric power and the like and the scenes of seawater desalination of concentrated water and the like, and technical support is provided for realizing environmental protection, energy conservation, emission reduction and resource utilization.

Provided is a method of manufacturing a semiconductor device including a dielectric layer including a first surface and a second surface that is more acidic than the first surface is formed on a semiconductor pattern, a reaction inhibitor is adsorbed onto one of the first surface and the second surface through an acid-base reaction, and a target layer is selectively formed through an atomic layer deposition process on a surface, on which the reaction inhibitor is not adsorbed, among the first surface and the second surface.

The present invention discloses a method for removing impurities from waste acid and fully recycling the waste acid. The method comprises the following steps: introducing hydrogen sulfide into the waste acid for a sulfidation reaction, removing arsenic sulfide and mercuric sulfide precipitates formed during the reaction; continuing to introduce hydrogen sulfide for a step-by-step sulfidation reaction, adding an iron-containing substance to adjust the reaction pH and ORP, and recovering the copper, lead, and zinc sulfide slag precipitates formed during the reaction in a step-by-step manner; adding an iron-containing substance for a neutralization reaction, controlling the pH and ORP, promoting the reaction between iron ions and arsenate, and removing the ferric arsenate precipitate formed during the reaction; adding an adsorbent for an adsorption reaction, and removing fluorine-containing and thallium-containing components by adsorption; introducing an oxidant for an oxidative hydrolysis reaction, controlling the degree of hydrolysis, and preparing polyferric sulfate. The present invention utilizes the iron-containing substance to remove impurities from waste acid, thereby achieving deep impurity removal and full resource utilization of waste acid.

The invention discloses a self-weight configuration oxygen evolution electrode and a preparation method and application thereof.The preparation method comprises the steps that a nickel substrate serving as a working electrode, a platinum sheet serving as a counter electrode and a saturated calomel electrode serving as a reference electrode are placed in a NiCo2O4 precursor solution, constant-potential electro-deposition is conducted on the nickel substrate, and a precursor electrode with a Ni-Co LDH precursor on the surface is obtained; putting the precursor electrode into a heating device for heating and heat preservation, and then taking out the precursor electrode for cooling to obtain a NiCo2O4 electrode with a spinel structure; and sequentially putting the NiCo2O4 electrode into a ferric nitrate nonahydrate aqueous solution and a sodium hydroxide solution, and loading alpha-Fe2O3 nanoparticles on the surface of the NiCo2O4 electrode by using a continuous ion layer adsorption reaction method to obtain the self-weight configuration oxygen evolution electrode. According to the preparation method of the self-weight configuration oxygen evolution electrode, a composite catalyst layer composed of NiCo2O4 and alpha-Fe2O3 of a spinel structure is constructed on a nickel substrate, and the self-weight configuration oxygen evolution electrode can adapt to power fluctuation.

The invention discloses a method for promoting formation of a sandy soil mineral organic complex by utilizing fungal secretions, and relates to the technical field of soil improvement and ecological restoration, and the method comprises the following steps: firstly, screening fungal strains to prepare a high-activity fungal inoculant; then preparing a mineral activation inducer containing low-molecular organic acid, trace elements and a biological surfactant; then mixing a high-activity fungal inoculant with a mineral activation inducer, and applying the mixture into the target sandy soil layer; finally, regulating and controlling the condition of the sandy soil layer after bacterium application, and maintaining for a preset time to promote in-situ reaction of fungi and sandy soil minerals to form a stable mineral-organic complex; according to the method, organic acid secreted by fungi can be promoted to be subjected to complexation and adsorption reaction with minerals such as silicate and iron-aluminum oxide in the sandy soil in a short time, meanwhile, fungal hyphae and secreted polysaccharide have physical bridging and wrapping effects, a stable mineral-organic complex is formed in situ, and the stability of the sandy soil is fundamentally improved.

The invention discloses a flue gas carbon dioxide continuous capturing system and method based on solid amine, and the system comprises a flue gas inlet pipeline used for introducing original flue gas; the adsorption reactor is used for adsorbing carbon dioxide in the original flue gas; the bottom of the adsorption reactor is provided with a flue gas and adsorbent inlet, and the flue gas and adsorbent inlet is connected with the flue gas inlet pipeline; the dust remover is connected with the adsorption reactor and is used for carrying out gas-solid separation and discharging decarbonized flue gas; the buffering bin is connected with the dust remover and is used for buffering the solid amine adsorbent; the desorption device is connected with the surge bin and is used for desorbing carbon dioxide in the solid amine adsorbent; and a discharge hole of the desorption device is connected with the flue gas inlet pipeline. The solid amine adsorbent realizes closed and continuous circulation in the system and the method, and high-efficiency and low-energy-consumption capture of carbon dioxide in flue gas is completed.

The present application belongs to the technical field of water treatment, and relates to a heat-sensitive color developing agent F-103 production wastewater treatment method. The present application performs multistage treatment on the wastewater. First, an alkaline chemical separation reaction is performed on the wastewater to remove part of the acidic polar organic matter 3-p-tolylsulfonylureido phenol, p-toluenesulfonic acid and the like in the water. Then, an acid chemical separation reaction is performed to further remove the alkaline polar organic matter intermediate MAPOTs and the like in the water. Subsequently, an adsorption reaction is performed using activated carbon to further remove the organic matter and inorganic impurities in the water. Finally, evaporation and concentration are performed to recover the salt sodium chloride. The wastewater treatment of the present application recovers the salt sodium chloride in the wastewater as a resource under the premise of solving the toxicity problem of the organic matter in the wastewater, and realizes the harmless treatment and the reduction of hazardous waste of the wastewater.

The present invention provides an application of a colloidal material for adsorbing metal elements in a groundwater environment, belonging to the fields of environmental protection and water treatment. The colloidal material is illite colloid, and the illite colloid is used for adsorbing the metal elements europium or americium. In the present invention, the initial concentration of europium or americium in water is above 0.3 mg / L, the dosage of the illite colloid is 0.5 - 2 g / L, the contact time of the illite colloid with the water containing europium or americium is above 10 min, and the adsorption reaction temperature is above 20 °C. The illite colloid provided by the present invention can be effectively used for adsorbing europium and americium in water treatment.

The application discloses a preparation method of a modified anti-polymerization adsorbent for styrene adsorption, and comprises the following steps: (1) mixing a molecular sieve carrier with ammonia water, uniformly stirring, and obtaining an ammonia modified molecular sieve carrier through post-treatment I; (2) mixing the ammonia modified molecular sieve carrier, a metal precursor and deionized water, and obtaining the modified anti-polymerization adsorbent through impregnation treatment, post-treatment II and calcination treatment. When the modified adsorbent prepared by the method is used in a VOCs adsorption reaction in rubber chemical industry flue gas, the styrene in the VOCs has the characteristics of large adsorption capacity and strong anti-styrene polymerization capacity.

This invention discloses a method for hydrotreating catalytic cracking slurry. A fixed-bed hydrotreating process is employed, comprising: in the presence of hydrogen, the catalytic cracking slurry sequentially contacts a hydrotreating protectant, a hydrotreating transition catalyst, and a hydrodesulfurization catalyst to undergo a hydrotreating reaction, yielding hydrotreated oil. The hydrotreating protectant comprises an alumina support with a most probable pore size of 40–100 nm, molybdenum oxide, and cobalt oxide. The hydrotreating transition catalyst comprises an alumina support containing additives and MoO3 and CoO. The support has a bimodal pore size distribution, with smaller pores concentrated in the 10–40 nm range and larger pores concentrated in the 150–400 nm range. This method eliminates the diffusion resistance during the adsorption and reaction of large molecules on the catalyst surface during the hydrotreating of catalytic cracking slurry, increases the capacity for more deposits such as coke, extends the operating cycle of the unit, and facilitates hydrodesulfurization and other reactions. It also increases the content of tricyclic and tetracyclic aromatics in the hydrotreated oil, making it a high-quality feedstock for needle coke production.

The present application relates to the field of chemical synthetic materials and catalysis, and particularly relates to a metal-amorphous structure chalcogenide core-shell nanocrystal and a preparation method and application thereof.The preparation method comprises the following steps: (1) synthesizing Au nanorods through a seed growth method; (2) coating silver on the surface of the Au, and epitaxially growing a silver shell layer nanocrystal; and (3) sulfidizing the silver shell layer nanocrystal, and performing hydrothermal cation exchange to obtain a core-shell structure nanocrystal.In the metal-amorphous structure chalcogenide core-shell nanocrystal, the amorphous surface to a certain extent is conducive to adsorbing reaction substrates, and promotes the progress of the photocatalytic carbon dioxide reduction reaction.The metal-amorphous structure chalcogenide core-shell nanocrystal has excellent gas-solid phase photocatalytic carbon dioxide reduction performance, and can achieve good effects without a photosensitizer and a sacrificial agent.

The invention relates to the technical field of gas purification, and discloses a gas adsorbent regeneration method which comprises the following steps: feeding a to-be-regenerated gas adsorbent into a regenerator, and vacuumizing the regenerator; performing three-stage treatment on the to-be-regenerated adsorbent subjected to vacuum-pumping treatment to obtain a regenerated adsorbent; and sending the regenerated adsorbent to a gas adsorber for adsorption reaction. Through cooperation of vacuumizing pretreatment and three-section treatment, efficient regeneration of various adsorbents is achieved, energy consumption is reduced, secondary pollution is avoided, and the cyclic utilization rate of the adsorbents is increased.

The invention discloses modified biochar as well as a preparation method and application thereof. The modified biochar comprises biochar and a calcium-containing compound, wherein the calcium-containing compound is loaded on the biochar, the loading amount of the calcium-containing compound is 10-30% of the mass of the modified biochar, and the calcium-containing compound is at least one of CaO and Ca (OH) 2. According to the invention, the biogas residue is modified by calcium carbonate, so that mesoporous of the biochar in a 4-10nm section is filled. The modified biochar promotes the retention of oxygen-containing functional groups of O-C = O and C = O on the surface, and the modified biochar prepared by the invention still can keep better strength. The invention also provides a method for treating phosphorus-containing wastewater by using the modified biochar and a device for treating phosphorus-containing wastewater, the intermittent adsorption reaction of the biochar shows that the adsorption performance of the modified biochar is superior to that of unmodified biochar, the saturated adsorption capacity of the modified biochar is 18-20 mg-P / g-BC, and the modified biochar is suitable for being applied to a sewage treatment plant.

The invention provides a waste plastic catalytic reforming device and a reforming method, and belongs to the technical field of waste plastic resourceful treatment. The technical problems that in a traditional pyrolysis process, a catalyst is prone to carbon deposition and deactivation, carbon dioxide emission is out of control, and synthesis gas quality is unstable are solved. The waste plastic catalytic reforming device comprises a glass tube reactor, wherein a copper crucible is arranged in the glass tube reactor; the catalysis-adsorption assembly comprises a steel wire ball catalyst which is filled below the copper crucible in the glass tube, and a three-dimensional network structure of the steel wire ball catalyst provides catalytic active sites; the calcium oxide cake-shaped adsorption layer is used for adsorbing carbon dioxide generated by reaction; the spring heating ring is coaxially wound on the outer side of the copper crucible; a heating coil of the electromagnetic induction heating device is arranged around the glass tube reactor; the inert gas cylinder is used for providing inert gas for the reaction system; the product collecting unit comprises a conical flask used for drying the synthesis gas; and the aluminum foil gas production bag is used for storing the purified synthesis gas. The device is mainly used for waste plastic pyrolysis.

The application discloses a method and system for recovering carbon dioxide in flue gas, belonging to the field of recovering carbon dioxide in flue gas. After high-temperature flue gas is filtered, heat is released for the first time, and then after desulfurization and denitrification, heat is released for the second time. Finally, low-temperature flue gas is formed and is subjected to an adsorption reaction with solid amine particles. The solid amine particles, after absorbing carbon dioxide, are subjected to heat absorption and temperature rise for two times, and then are directly heated by high-temperature water vapor. After the solid amine particles, after carbon dioxide is separated, are cooled, the solid amine particles participate in the reaction again. The flue gas is subjected to heat exchange and temperature reduction for two times, so that the temperature of the flue gas is reduced, the flue gas is better adsorbed by the solid amine particles, and the heat released by the flue gas during temperature reduction is used for preheating the solid amine particles, which have adsorbed carbon dioxide, and gradually increasing the temperature of the solid amine particles, so that the use amount of steam is further reduced when the steam is used for heating.

The application discloses a method for determining a silicate cement hydration performance index, comprising the following steps: 1) respectively establishing mathematical relational expressions of mineral phase dissolution, hydration product deposition, ion adsorption reaction rate and ion concentration; 2) establishing chemical field control equations of mineral phase dissolution, product deposition, ion diffusion and ion adsorption reaction coupling in the hydration process, and potential field and temperature field control equations; combining corresponding boundary and initial conditions, solving the three groups of control equations, and outputting the results of ion concentration, potential and temperature changes with time and spatial distribution in the whole hydration process; and 3) establishing a hydration heat calculation formula of the whole hydration process of the silicate cement. The application further discloses an analysis device. The method is more in line with the real situation of the silicate cement hydration, more accurately describes the cement hydration process from the essential mechanism, can completely, accurately and truly reflect the silicate cement hydration process, and has important research and popularization significance.

The present invention discloses a solid adsorption cycle carbon capture device and method, the device performs carbon capture through an alkali metal-based solid absorbent, and the device at least comprises: a fluidized reactor having a hydration reaction zone and an adsorption reaction zone which are relatively isolated; a hydration bed layer is arranged at the bottom of the hydration reaction area, and water vapor introduced from the bottom of the hydration bed layer is subjected to fluidized hydration reaction; an adsorption bed layer is arranged at the bottom of the adsorption reaction area, and a fluidized adsorption reaction is carried out through carbon-containing gas introduced from the bottom of the adsorption bed layer; the hydration bed layer is communicated with the adsorption bed layer through a vertical pipe; and a hydrated adsorbent particle dense-phase region is arranged in the vertical pipe and is used for isolating the hydration reaction region from the adsorption reaction region. According to the scheme of partition reaction, the contradiction that the reaction rates between hydration and carbonation are not matched is fundamentally solved, the performance of the adsorbent can be exerted to the maximum extent, and the treatment efficiency of carbon capture is effectively improved; the hydration reaction and the adsorption reaction can be subjected to process reinforcement through the fluidized reactor, so that the efficiency of the hydration reaction and the adsorption reaction is effectively improved.