108results about How to "Improve reaction stability" patented technology

The invention belongs to the technical field of energy and petrochemical engineering catalysts, and particularly discloses a preparation method and application of a copper-zinc-aluminum spinel solid solution catalyst. The Cu-Zn-Al spinel solid solution catalyst is prepared by ball-milling copper, zinc and aluminum precursors and then roasting at 800-1200 DEG C in the air atmosphere, and the preparation method is simple, does not need a large amount of solvent, is less in wastewater and avoids the influence of other impurity ions. The Cu-Zn-Al spinel solid solution catalyst prepared by the invention is used for methanol reforming hydrogen production reaction, the methanol conversion rate is as high as 95.5%, the H2 selectivity in the product is 74.8%, and the CO selectivity is 0.76%, so that the Cu-Zn-Al spinel solid solution catalyst has high activity, high selectivity and good reaction stability.

The invention discloses a device and a method for preparing single-wall and few-wall carbon nanotubes, and relates to the technical field of nano carbon materials, the device structurally comprises a heating system, a feeding system, a gas path system, a cooling system and an electrical system, the heating system comprises a medium-frequency induction furnace, an induction coil and a graphite crucible; the gas path system comprises a gas inlet; the feeding system comprises a second catalyst feeding hole and a discharging hole; wherein the feeding hole is formed above the graphite crucible, the air inlet is formed in the side surface of the medium-frequency induction furnace, and the discharging hole is formed in the other side of the medium-frequency induction furnace. The metal molten pool is used as a heat source, a steady-state heat source is provided for catalyst evaporation and single-wall / few-wall carbon nanotube growth, compared with a plasma method and an electric arc method, catalyst evaporation is more uniform and mild, the catalyst utilization rate is increased, and the single-wall / few-wall carbon nanotube growth efficiency is remarkably improved.

The invention provides a novel nano material as well as an immobilized enzyme and application thereof, and relates to the fields of biotechnology and application, material synthesis and application, water environment treatment and environmental protection. The particle size of the nano material is 2-30 microns, and the aperture of the surface is 2-30 nm; the solid nanomaterial is prepared by the following method: adding an alkali solution into a metal salt solution, fully mixing, then adding a ligand aqueous solution, fully reacting, and then separating to obtain the solid nanomaterial. When the material is used for immobilizing enzyme, the particle size of the obtained immobilized enzyme is 2-20 microns, and the aperture of the surface is 1-15 nm; the preparation method comprises the following steps: mixing an enzyme with a ligand aqueous solution, then adding the mixture into a metal salt mixed solution, and separating a solid product. The nano material has excellent biocompatibility and mild synthesis conditions, can protect the reaction activity of the enzyme under harsh conditions such as high temperature, acid and alkali, and improves the recycling capability and storage capability of the enzyme.

A residual oil conversion process method and a reaction system belong to the field of oil refining processing, and the process method comprises the following steps: mixing a heavy inferior residual oil raw material with a dispersed molybdenum-containing catalyst and a partially circulated heavy fraction cracking product; after heat exchange and temperature rise, pretreatment is conducted through a 10-30 KHz ultrasonic device; after preheating, entering a slurry bed hydrogenation reactor, and carrying out a hydro-conversion reaction in a hydrogen atmosphere under the conditions of 380-500 DEG C and 5-18 MPa; after subsequent processes and equipment separation, the heavy liquid hydrocarbon part enters a catalytic cracking device and is subjected to a contact reaction with a residual oil cracking catalyst containing aluminum extraction and silicon supplement Y zeolite under the conditions that the temperature is 500-540 DEG C and the catalyst-oil ratio is 5-15; fractionating the product in a fractionating tower; the reaction system comprises an ultrasonic pretreatment device, a slurry bed reactor, a catalytic cracking device, a product fractionating tower and heat exchange, separation and circulation equipment. According to the method, the conversion efficiency and process stability of the heavy inferior residual oil raw material are improved, the yield of light fraction gasoline is increased, the energy consumption is reduced, and the method has good economical efficiency and practicability.

The invention provides a preparation method of a metal-doped cobalt-based dynamic catalyst and application of the metal-doped cobalt-based dynamic catalyst in electrosynthesis of ammonia, and belongs to the technical field of catalysts. The metal-doped cobalt-based catalyst is prepared by adopting an ion exchange and reducing atmosphere calcination method, has a self-supporting characteristic and high activity, and is directly used as an electrode in the process of electrosynthesis of ammonia, so that the reaction stability is greatly improved. Compared with the existing electrosynthesis ammonia catalyst, the metal-doped cobalt-based dynamic catalyst prepared by the invention has unique advantages in the aspects of interface water activation and nitrogen oxide conversion, and shows excellent application prospects.

The invention provides a supported cobalt-based catalyst for Fischer-Tropsch reaction and a preparation method and application thereof, and the preparation method comprises the following steps: S1, dissolving cobalt salt and manganese salt in a solvent to form an impregnation liquid; and S2, uniformly mixing a composite oxide, a molecular sieve, a carbon material, a binder and the impregnation liquid, kneading, extruding into strips, and roasting to obtain the supported cobalt-based catalyst. According to the invention, the composite oxide, the molecular sieve and the carbon material are compounded together as the carrier, and the supported cobalt-based catalyst is prepared in a manner of synchronously carrying out carrier preparation and loading, so that not only are the catalytic effect and stability of the catalyst improved, but also the mechanical strength is considered.

The invention relates to the field of sodium citrate preparation, in particular to a double-cooling type decolorizing and refining device and application thereof in sodium citrate preparation.The double-cooling type decolorizing and refining device comprises a reaction tank, a stirrer is arranged in the reaction tank, the double-cooling type decolorizing and refining device further comprises an outer cooling jacket and an outer cooling coil, and a cooling area is formed between the outer cooling jacket and the reaction tank; the outer cooling jacket is provided with an air inlet and an air outlet, and the outer cooling coil is provided with a water inlet and a water outlet. The rotating speed of the stirrer is detected through the rotating speed sensor, the flow adjusting assembly is adjusted according to a rotating speed signal, the cold air flow and the cooling water flow are gradually increased, the opening degree of the air inlet and the opening degree of the water inlet are gradually increased along with increasing of the rotating speed of the stirrer, continuous improvement of the cooling effect is ensured, and the particle size of formed crystals is effectively controlled; the increase of the number of crystal nucleuses and non-uniform crystallization caused by rapid cooling are avoided, so that the purity and the yield of the sodium citrate are improved.

The invention discloses a composite fixing agent for rapidly treating pollutants and a preparation method thereof. The composite fixing agent is composed of a green nanometer semiconductor material, natural minerals, a microbial supporting material, a functional auxiliary agent and an environment-friendly activating agent, all the components have a synergistic effect, and efficient removal of organic pollutants, heavy metal ions, algae and main water pollutants (ammonia nitrogen, COD, total phosphorus and total nitrogen) is achieved. The preparation method comprises the following steps: pretreatment of the nano material, activation of the mineral substance, preparation of the microbial carrier, preparation of the auxiliary agent and composite synthesis. Compared with the prior art, the invention has the advantages of high treatment speed, strong adsorption capacity, wide pH application range, good biocompatibility, no secondary pollution and the like, and is suitable for emergency treatment of blue-green algae outbreak, heavy metal pollution and other sudden water pollution.

The invention discloses a MoS2 / Ni3S4 / CFP electrocatalyst with stable ampere-level current density and a preparation method and application thereof, and belongs to the technical field of electrocatalytic hydrogen evolution. According to the preparation method disclosed by the invention, a heterogeneous interface is constructed between MoS2 and Ni3S4 through a hydrothermal reaction, and MoS2 and Ni3S4 generate a heterojunction on a carbon paper substrate, so that the MoS2 / Ni3S4 / CFP electrocatalyst with stable ampere-level current density is obtained. The preparation method of the composite material comprises the following steps: (1) dissolving nickel salt, urea and ammonium fluoride into water, stirring, and putting the obtained mixed solution A and carbon paper into a hydrothermal reaction kettle for primary hydrothermal reaction to obtain a nickel hydroxide precursor; and (2) dissolving molybdenum salt and thiourea in water, stirring, putting the obtained mixed solution B and the nickel hydroxide precursor into a hydrothermal reaction kettle, and carrying out secondary hydrothermal reaction to obtain the catalyst. According to the catalyst, the electron transfer rate is increased, meanwhile, the number of active sites is increased, and excellent hydrogen evolution reaction activity and stability are shown in the water electrolysis process.

The invention discloses a production method for synthesizing silicon nitride through granulation combustion, which comprises the following steps: raw material pretreatment: selecting high-purity silicon powder and nitrogen as main raw materials, carrying out fine screening and impurity removal treatment on the silicon powder, innovating a granulation process: preparing the treated silicon powder into spherical particle groups with specific particle sizes by adopting a novel spray granulation technology, through accurate control of spray parameters and intelligent combustion synthesis, granulated silicon powder particles are placed in an advanced reaction container, nitrogen is introduced, and the reaction container is equipped with an intelligent temperature and pressure control system, so that reaction parameters can be monitored and adjusted in real time, and efficient product collection can be realized; and collecting and cooling the synthesized silicon nitride by using a cyclone separation technology. Through the steps of raw material treatment, granulation process innovation, intelligent combustion synthesis and the like, silicon nitride is produced, the purity of the raw materials and the reaction stability are improved, energy consumption is reduced, waste is treated in an environment-friendly mode, and an advanced and reliable method is provided for silicon nitride production.

The utility model discloses a kind of N, N-diisopropyl ethylamine neutralization distillation device, it is related to neutralization distillation technical field, the N, N-diisopropyl ethylamine neutralization distillation device, including neutralization reaction kettle, stirring mechanism and lye distribution mechanism are equipped in neutralization reaction kettle, lye distribution mechanism is installed in the upper portion of neutralization reaction kettle, it is arranged horizontally annularly, the lower end of lye distribution mechanism is fixedly connected with the upper end of stirring mechanism, and lye distribution mechanism is rotated simultaneously when driving stirring mechanism rotation, it is even sprayed into reaction liquid phase area in circumferential direction multiple points to alkali liquor, the efficient dispersion and mixing of alkali liquor are realized.The utility model is rotated by the synergistic effect of multiple point injection lye distribution mechanism and micro rectifier structure, realize the spatial uniform distribution and rapid mixing of alkali liquor in reaction system, effectively avoid local over-alkali, improve the uniformity, stability and product yield of neutralization reaction.

This invention discloses a graphene oxide / carbon nanotube-based coal combustion catalyst, its preparation method, and its applications, belonging to the field of catalytic combustion technology for efficient coal utilization. First, graphene oxide is used as a carrier, and then carbon nanotubes and manganese oxide are grown on its surface in a one-step process using condensation and redox reactions, followed by co-firing with coal. The graphene oxide / carbon nanotube-based combustion catalyst prepared by this invention effectively improves combustion efficiency, reduces the ignition temperature of coal, and lowers the reaction activation energy, resulting in significant economic benefits and broad application prospects.

The invention provides a method for preparing phosphonitrilic chloride trimer through reaction in an organic phase, and relates to the field of phosphonitrilic chloride trimer. The method for preparing hexachlorocyclotriphosphazene through reaction in the organic phase comprises the following steps: preparing pyridine hydrochloride, preparing a choline chloride / glycerol deep eutectic solvent, synthesizing hexachlorocyclotriphosphazene, and carrying out post-treatment. The method for preparing phosphonitrilic chloride trimer through reaction in the organic phase can effectively solve the problems that the reaction process is not easy to control, the reaction time is long, the reaction efficiency is low, and side reaction is easy to generate to generate a large number of by-products in the existing preparation method of phosphonitrilic chloride trimer, the post-treatment is simplified, and the yield is improved. The yield and the purity of the prepared phosphonitrilic chloride trimer are improved, and the generation of three wastes in the preparation process is reduced.

The invention relates to the field of cyclohexanone-oxime gas-phase Beckmann rearrangement reaction, and discloses a cyclohexanone-oxime gas-phase Beckmann rearrangement reaction method and application thereof, and the method comprises the following steps: (1) atomizing an alcoholic solution of cyclohexanone-oxime to form atomized liquid drops, and then contacting with high-temperature carrier gas for vaporization to obtain a vaporized raw material; the average particle size of the atomized liquid drops is less than 80 microns, and the average residence time of the cyclohexanone-oxime does not exceed 2s; (2) preheating the vaporized raw material, and then contacting the vaporized raw material with a catalyst in a fixed fluidized bed reactor to carry out a gas-phase Beckmann rearrangement reaction; wherein the D50 of the catalyst is 60-100 [mu] m, and the wear index is not higher than 3% / h; and (3) cooling a product of the gas-phase Beckmann rearrangement reaction, and then carrying out gas-liquid separation. The method can effectively improve the conversion rate of cyclohexanone-oxime and the selectivity of caprolactam, has few byproducts and good reaction stability, and can be used for evaluating the performance of a laboratory fluidized bed catalyst.

A continuous solid-liquid reaction device for gas treatment belongs to the technical field of flue gas desulfurization and manganese resource recovery equipment and comprises more than three reaction kettles which are connected in series through gas guide pipelines, each reaction kettle is provided with a gas inlet pipe joint, a feeding pipe joint, a gas outlet pipe joint and a discharging pipe joint, and a gas distribution device communicated with the gas inlet pipe joint is arranged in each reaction kettle. A stirring device is also arranged; the gas distribution device comprises more than two layers of gas distribution pipes which are communicated through a communication pipeline; a plurality of gas distribution holes are formed in the side walls of the gas distribution pipes; the stirring device comprises more than two layers of stirring paddles, and the stirring paddles are arranged above each layer of gas distribution pipe. The core design of'mixing gas with liquid without mixing 'is adopted, the gas distribution device is combined with stirring, so that gas is uniformly released in a small bubble form, the retention time is prolonged, and multi-stage full utilization of the gas is realized in cooperation with the gas series design. And multi-layer graded gas distribution is matched with layered stirring, so that gas-liquid-solid three-phase contact is sufficient, the reaction is stable, and deposition and short circuit are avoided.

The application relates to the field of polyurethane foaming materials, and discloses a low-VOC polyurethane foaming compound and a preparation method thereof; the low-VOC polyurethane foaming compound comprises A component and B component which are mutually packed, the A component comprises low-aldehyde polyether polyol, polyether carbonate polyol, functionalized polyurethane oligomeric polyol, reactive tertiary amine catalyst, foam stabilizer and water, and the B component comprises a low-free-monomer isocyanate component; the functionalized polyurethane oligomeric polyol is prepared by reacting polyether carbonate polyol, diisocyanate and a hydroxyl compound containing a 1,3-dicarbonyl structure and having two or more hydroxyl groups. The preparation method comprises the steps of functionalized polyurethane oligomeric polyol preparation, A component dispensing, B component dispensing and packing. By introducing the reactive oligomeric polyol with the 1,3-dicarbonyl structure into the foaming system, the volatile components brought by raw materials can be reduced, and the continuous control ability of aldehyde components in the foaming process and the post-maturation process can be improved.

The invention belongs to the technical field of new energy materials, and discloses a nitrogen and sulfur co-doped graphene modified porous iron oxide / phosphide heterojunction nanocomposite as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing an iron source, basic salt and an organic solvent, and carrying out solvothermal reaction; mixing and dispersing the obtained porous Fe3O4 nano composite material, nitrogen and sulfur co-doped graphene, a surfactant and water; carrying out annealing treatment on a product obtained by mixing and dispersing; and reacting the obtained nitrogen and sulfur co-doped graphene modified porous Fe3O4 nano composite material with a phosphorus source. The nitrogen and sulfur co-doped graphene modified porous iron oxide / phosphide heterojunction nano composite material prepared by the invention shows excellent electrochemical reaction activity and kinetics as an efficient water oxidation electrocatalyst, and the preparation method is an integrated preparation process, and is low in cost and high in efficiency.

The invention provides a nickel-based catalyst, a preparation method thereof and application of the nickel-based catalyst in a methane dry gas reforming reaction, and relates to the technical field of catalyst preparation. According to the invention, the confinement effect is utilized, the assistant molybdenum is highly dispersed in the carrier, the anchoring effect on the active component nickel is enhanced, the uniform dispersion of nickel is promoted, the stability and carbon deposition resistance of the nickel-based catalyst are effectively improved, and the efficiency and stability of methane dry gas reforming reaction are remarkably improved; and a new way is provided for efficient utilization of natural gas and realization of a dual-carbon target.

The invention discloses a hierarchical pore EUO molecular sieve as well as a preparation method and application thereof. The morphology of the hierarchical pore EUO molecular sieve is fusiform; the catalyst has micropores and mesopores; the pore volume of the micropores is 0.12 to 0.15 cm < 3 > / g; and the pore volume of the mesopores is 0.14-0.25 cm < 3 > / g. According to the synthetic route, the hierarchical pore EUO molecular sieve with high crystallinity is prepared by a one-step hydrothermal crystallization method through optimization of the ratio of a silicon-aluminum source to a synthetic system and addition of seed crystals. The EUO molecular sieve provided by the invention has a relatively large mesoporous volume, so that the EUO molecular sieve has excellent diffusion performance, and has excellent reaction stability in an isomerization reaction of m-xylene.

The invention discloses a low-steam-carbon-ratio methane reforming catalyst capable of retaining molten salt and a preparation method of the low-steam-carbon-ratio methane reforming catalyst. The low-steam-carbon-ratio methane reforming catalyst comprises an active component, an auxiliary agent, an inorganic oxide skeleton and the molten salt, the active component accounts for 0.5-10.0% of the mass of the catalyst; the auxiliary agent accounts for 0.1-5.0% of the mass of the catalyst; the fused salt is mixed nitrate of sodium and potassium and accounts for 0.01-10% of the mass of the catalyst; and the balance of an inorganic oxide skeleton. The preparation method comprises the following steps: mechanically ball-milling and mixing metal salt and fused salt to prepare a catalyst precursor, and roasting at high temperature; and washing the roasted product by using a washing solvent, so that part of fused salt is reserved in the washed product, and finally drying to obtain the product. A proper amount of molten salt is reserved in the catalyst, and part of molten salt is reserved in a catalyst framework by controlling the washing frequency during preparation, so that the carbon deposition resistance of alkali metal is exerted, the salt concentration in a solvent is reduced, and the treatment difficulty and cost are further reduced.

The present disclosure relates to a kind of multi-level hole pure silicon molecular sieve and its preparation method and cyclohexanone oxime catalytic reaction method.The multi-level hole pure silicon molecular sieve has the following diffusion coefficient characteristics: with cyclohexane as probe molecule, the diffusion coefficient of the probe molecule in the multi-level hole pure silicon molecular sieve is 0.015-0.02 μm 2 / min, measured by zero-length column method.The present disclosure can effectively improve the molecular diffusion performance of molecular sieve, and when the molecular sieve is used for cyclohexanone oxime gas phase Beckmann rearrangement reaction, the selectivity of caprolactam and the service life of catalyst can be effectively improved.

The invention discloses a carbon-coated iron-based catalyst as well as a preparation method and application thereof. The catalyst is carbon-coated iron trioxide loaded with alkali metal or alkali metal and nickel. In the catalyst, the loading capacity of nickel is 0-3wt%, the loading capacity of alkali metal is 0.5-5wt%, and the alkali metal is selected from at least one of Li, Na, K, Rb and Cs. The iron-based catalyst is obtained by carrying out step-by-step impregnation modification on iron trioxide through nickel salt and alkali metal salt and then introducing CO to carry out reduction carbonization treatment, the preparation method is simple, the catalyst has high activity and high target higher alcohol product space time yield on CO2 fixed bed continuous hydrogenation, the catalyst has good reaction stability and good life stability, and the catalyst is suitable for industrial production. And industrial amplification and application are facilitated.

According to the static expansion fracturing material for upward drilling and the using method, calcium oxide serves as a main material, magnesium oxide, titanium oxide and citric acid serve as auxiliary materials, the main material and the auxiliary materials are both dry materials, and the main material and the auxiliary materials are evenly stirred, mixed and ground to obtain the static expansion fracturing material. The mass ratios of the calcium oxide, the magnesium oxide, the titanium oxide and the citric acid are 85.5%, 5.5%, 7.5% and 1.5% respectively. The invention has the advantages of scientific principle, easily available ingredients, simple manufacturing process, low cost, good cracking effect, advanced injection or installation, slow expansion cracking after encountering water, and safe and reliable use process.

The invention relates to the technical field of catalyst synthesis, in particular to an alkoxy titanium non-metallocene catalyst for preparing polyethylene wax and a preparation method of the alkoxy titanium non-metallocene catalyst. The alkoxy titanium catalyst prepared by the invention can be directly used for ethylene polymerization reaction, the polymerization process system is simple, and the alkyl aluminum halide with impurity removal dosage has high catalytic polymerization reaction activity; according to the present invention, no additional organic boron compound or methyl chlorooxane needs to be added, no chain transfer agent needs to be added to adjust the molecular weight, the structure is novel, the catalytic activity is outstanding, the synthesis process is simple, the ligand design is diversified, and the molecular weight and the activity of the polymer can be effectively improved by designing different types of ligands; accurate regulation and control on the activity and selectivity of the catalyst are achieved, then the olefin polymer with the specific structure and performance is obtained, and the characteristic provides a wide space for preparing high polymer materials with the specific performance and application.

The invention relates to an integral supported palladium-based catalyst and a preparation method and application thereof, and relates to the technical field of catalysts, the catalyst is composed of a carrier foamed nickel (NF), a noble metal palladium (Pd) and another metal for catalyst surface modification, the typical modified metal is magnesium (Mg), and the typical modified metal is magnesium (Mg). According to the preparation process, metal magnesium grows on NF to form a firm Mg-NF matrix, then palladium is loaded on the matrix, and the integral supported palladium-based catalyst Pd / Mg-NF is prepared, the method is simple in preparation, mild in condition, controllable in process and high in repeatability, and the product has good reaction activity and stability and has good practical application prospects.

This application relates to the technical field of material conveying equipment, and provides a jetting device for pyrite, including a feeding tank. A distribution cone and multiple discharge ports are provided at the bottom of the feeding tank, and the discharge ports are evenly arranged around the distribution cone. A flow-turbulence device is provided between adjacent discharge ports. The flow-turbulence device includes a flow-turbulence component and a first gas supply pipe. The flow-turbulence component includes a flow-turbulence element, and the pulsed airflow injected from the first gas supply pipe causes the flow-turbulence element to reciprocate. By providing multiple discharge ports, this application can supply a large quantity and evenly of pyrite ore to the downstream reaction tank through multiple feeding pipes, enabling a continuous and stable reaction within the reaction tank. The flow-turbulence device between adjacent discharge ports effectively solves the problems of uneven fluidization, material accumulation, and bridging of the pyrite ore during its reciprocating motion.

The invention discloses a catalyst for preparing ethylene and propylene through butene cracking as well as a preparation method and application of the catalyst. The catalyst is a core-shell H-ZSM-5 (at) MCM-41 molecular sieve, and the thickness of the shell layer of the MCM-41 is 10-60 nm; the preparation method comprises the following steps: dispersing an H-ZSM-5 molecular sieve into a solvent to obtain a mixture I; adding an alkaline solution and an organic template agent into the mixture I to obtain a mixture II; slowly dropwise adding a silicon source into the mixture II, stirring and hydrolyzing to obtain a modified solid-liquid mixture; and aging and roasting the modified solid-liquid mixture to obtain the catalyst. The catalyst is applied to a reaction for preparing ethylene and propylene through catalytic cracking of butene, and can improve the catalytic efficiency and prolong the reaction life.

The invention belongs to the technical field of perchlorate treatment, and discloses application of graphene oxide / metal organic framework modified magnetic nanoparticles as a perchlorate extraction material, and an application method comprises the following steps: adding the graphene oxide / metal organic framework modified magnetic nanoparticles Fe3O4 (at) GO (at) MIL-53 (Al)-NH2 into perchlorate wastewater; according to the method, perchlorate is rapidly extracted under the action of external mechanical stirring, and then used Fe3O4 (at) GO (at) MIL-53 (Al)-NH2 is separated and recycled by virtue of a magnetic field, so that purified water is obtained. According to the Fe3O4 (at) GO (at) MIL-53 (Al)-NH2, magnetic ferroferric oxide serves as an inner core, a composite functional group composed of graphene oxide and a metal organic framework material is arranged on the surface, and the Fe3O4 (at) GO (at) MIL-53 (Al)-NH2 is used for extracting perchlorate and has the advantages of being high in extraction speed and extraction efficiency, easy to regenerate and the like.

The invention provides a method for blowing a micro-fine particle grade titanium-rich material in a fluidizing chlorination furnace, which comprises the following steps: step S1, drying and screening the micro-fine particle grade titanium-rich material to obtain titanium-rich material fine powder; s2, conveying the titanium-rich material fine powder to a chlorine pipeline of a boiling chlorination furnace; s3, the titanium-rich material fine powder is fully mixed with chlorine while being conveyed in a chlorine pipeline; and S4, a mixture of the titanium-rich material fine powder and chlorine is blown into a boiling chlorination furnace reaction zone. According to the method for blowing the micro-fine particle-grade titanium-rich material by the fluidizing chlorination furnace, the problem of resource waste caused by the fact that the micro-fine particle-grade titanium-rich material cannot be directly used for production of the fluidizing chlorination furnace is solved, efficient utilization of the micro-fine particle-grade titanium-rich material is realized through the blowing technology, the production cost is reduced, the energy consumption is reduced, and the yield and the quality of titanium tetrachloride are improved.

The invention provides an organic amine absorbent regeneration catalyst for carbon capture and a preparation method thereof. The organic amine absorbent regeneration catalyst comprises a carbon layer carrier and metal elements and nitrogen elements doped on the surface of the carbon layer carrier, the carbon layer carrier has a highly graphitized structure, and the ID / IG ratio of the Raman spectrum is less than 2; the metal elements are in an atomic-scale dispersed state on the surface of the carbon layer carrier; the metal element and the nitrogen element are coordinated and jointly loaded on the surface of the carbon layer carrier. The metal active substance in the catalyst is in the carbon-nitrogen protective layer, active sites are dispersed, and the stable protective layer is arranged around the active sites, so that the catalyst has higher reaction activity and stability; the catalyst has a highly graphitized structure, so that the stability and durability of the catalyst can be improved; the catalyst has a hierarchical porous structure, has a high specific surface area, contributes to reactant diffusion, and improves the reaction activity of the catalyst; strong acid and strong alkali etching can be endured, and the durability of the catalyst is improved; in addition, the catalyst can greatly improve the CO2 desorption performance of the organic amine absorbent.