98results about How to "Regulatory distribution" patented technology

The invention discloses a nano ZSM-5 molecular sieve based catalyst and preparation and use methods. The molecular sieve catalyst consists of molecular sieves and metal components, wherein the molecular sieves are nano ZSM-5 molecular sieves with a short b-axis, a medium high silica-alumina ratio, less strong acid, high Lewis acid content, and resistance to hydrothermal deactivation. The preparation method is as follows: mixing a silicon source, an aluminum source, a template agent, a structure promoter, an additive and alkali with water, and stirring to prepare a precursor solution, then crystallizing, separating solid from liquid, and calcinating to obtain molecular sieve raw powder; mixing the molecular sieve raw powder with an ammonium salt solution, stirring, filtering, mixing with the ammonium salt solution for several times, stirring, filtering, and calcinating to obtain hydrogen-type ZSM-5 molecular sieves; mixing with the metal precursor solution, drying and calcinating to obtain the aromatization catalyst. The use method is as follows: transforming oxy-compound raw materials to aromatic hydrocarbon through the catalyst under the reaction conditions. The nano ZSM-5 molecular sieve based catalyst has the characteristics of being high in aromatics yield (reaching up to 99%) and long in service life (the catalyst is alive after 300 hours, and the aromatics selectivity reaches up to 70% after the catalyst is subjected to hydrothermal aging at 760 DEG C for 4 hours).

An intermediate-phase carbon microspheres (0.1-100 microns) is prepared through preparing raw material composed of basic material material and catalyst, polymerizing reaction, separating the resultant and drying. The said basic raw material is aromatic heavy oil and/or asphalt. The said catalyst is chosen from the oxides of Fe, Ni and Co. Its advantages are high output rate (20-70% and controllable granularity.

The invention discloses a method for preparing linear alpha-olefin. The method comprises the following steps of: introducing catalytic solution and ethylene into a first reactor and reacting at the temperature of between 30 and 120 DEG C and under the pressure of 0.1 to 3 MPa for 1 to 40 min to prepare a first mixed material flow of first linear alpha-olefin, the ethylene and the catalytic solution; introducing the first mixed material flow and the ethylene into a second reactor and reacting at the temperature of between 40 and 90 DEG C and under the pressure of 0.5 to 4 MPa for 5 to 120 min to prepare a second mixed material flow of second linear alpha-olefin, the ethylene and the catalytic solution; performing gas-liquid separation on the second mixed material flow to obtain the ethylene and a liquid-phase product; cycling the separated ethylene to the first reactor or the second reactor for continuous reaction; and performing distillation separation on the liquid-phase product to prepare the linear alpha-olefin. The method has the advantages of mild reaction condition, simple operation and suitability for industrialized production.

The invention discloses a device and a method for desulfuration, denitration and demercuration by using microwave induction and catalysis jointly. The device comprises a reactor and a microwave transmission and control device and further comprises at least three single mode microwave sources, at least three reaction cavities with microwave feedback ports are arranged in the reactor, and the reaction cavities are respectively communicated with the single mode microwave sources through the microwave transmission and control device. A short-circuit plunger opposite to positions of the microwave feedback ports of the single mode microwave sources is further arranged in each reaction cavity, and separation walls used for smoke to smoothly pass through and being capable of effectively avoiding mutual interference between single mode microwave in adjacent cavities are arranged among the reaction cavities. A catalytic agent/catalyst carrier for mainly conducting redox reaction on sulfur dioxide, nitric oxide and simple substance mercury in the smoke is respectively arranged in the reaction cavities. The device is high in joint desorption efficiency of smoke pollutant of the smoke of a plant, low in cost and small in equipment occupation space.

The invention relates to a method for manufacturing super capacitor electrode materials with high energy ratio, belonging to energy material technology and related field. The invention uses mechanical chemical treatment means to prepare porous carbon/electric conduction agent/polytetrafluoroethylene composite electrode materials. The prepared materials can evenly compound porous carbon/carbon black/polytetrafluoroethylene to form composite electrode materials composed of nanoes, thereby adjusting pore size of the porous carbon and improving utilization efficiency of the carbon pore; when preparing the super capacitor electrode using the materials, because the carbon black and the polytetrafluoroethylene are evenly dispersed in the porous carbon base by the mechanical chemical treatment, the size and the distribution of the pore diameter of the carbon pore are changed, so that the electrode has higher unit capacity, on the other hand, the carbon framework can also provide a good electric conduction channel for the carbon black corpuscules dispersed therein, equivalent internal resistance of the capacitor is reduced, so the capacitor has higher power and energy density.

The invention relates to a preparation method of a linear-chain C5/C6 alkane catalyst prepared by sorbitol aqueous phase hydrogenation. The method comprises the following steps: (1) selecting activated carbon as a catalyst carrier, and drying at the temperature of 100-200 DEG C; (2) adding the dried activated carbon into an ammonium paramolybdate aqueous solution, and drying to obtain a catalyst carrier precursor containing molybdenum; (3) calcining the catalyst carrier precursor containing molybdenum in a muffle furnace to obtain a catalyst carrier containing molybdenum; (4) adding a ruthenium trichloride solution into the catalyst carrier for soaking, and drying to obtain a catalyst carrier precursor containing ruthenium and molybdenum; (5) calcining the catalyst carrier precursor containing ruthenium and molybdenum to obtain an initial catalyst; and (6) performing hydrogen gas reduction on the initial catalyst at the temperature of 250-400 DEG C for 4-8h to obtain the sorbitol aqueous phase hydrogenation catalyst. According to the method, a step soaking method is adopted to inhibit carbon-carbon bond breakage and selectively break carbon-oxygen bonds, so that the selectivity and the excitation capacity of sorbitol hydrodeoxygenation reaction can be improved.

The invention discloses a daily feed for laying hens producing eggs enriched with omega-3 polyunsaturated fatty acid. The daily feed for the laying hens producing eggs enriched with omega-3 polyunsaturated fatty acid is mainly prepared from the following raw materials in parts by weight: 10-20 parts of barley, 5-10 parts of fermented soybean meal, 2-4 parts of beer yeast, 5-10 parts of puffed soybeans, 2-5 parts of puffed linseeds, 3-6 parts of oat bran, 3-6 parts of alfalfa, 2-5 parts of ultrafine wall-broken grape seeds, 2-8 parts of seaweed powder, 0.5 part of a compound premix, 0.003-0.005 part of selenium yeast, 0.05-0.1 part of a compound enzyme preparation, 0.03-0.08 part of betaine, 0.05-0.1 part of probiotics, 0.3 part of Boshan X-1, 0.01-0.03 part of phytase, 0.03-0.1 part of lipase, vitamins, amino acids, and so on. Being used for breeding laying hens, the daily feed is capable of improving immunity and disease resistance of the laying hens, as well as increasing content of omega-3 polyunsaturated fatty acid, especially content of DHA, in the eggs.

A road soil slope willow post protection technique comprises a slope protection and a bridge protection. The invention is characterized in that the slope protection comprises seed selection, ground furnish and mechanical posting; the bridge protection comprises seed selection, ground furnishing, drawing line and positioning, digging concaves, and planting the seed. The invention can be used to protect two side slopes of road.

The invention discloses a Cu-Ni bimetallic catalyst with charcoal being a carrier and application of the Cu-Ni bimetallic catalyst. The Cu-Ni bimetallic catalyst is prepared through the steps that (1)under a stirring condition, alpha-cellulose and an ionic liquid are heated after being mixed, then concentrated H<2>SO<4> is added till the temperature of the mixture is increased, a reaction is performed for 10-20h, and then a charcoal precursor is obtained after filtering, washing and drying; (2) the charcoal precursor is carbonized in a nitrogen atmosphere, washed and dried, and then the charcoal is obtained; and (3) copper salt and nickel salt are sequentially dissolved in water and uniformly mixed, the charcoal is added for stirring impregnation, an impregnated sample is vacuum-dried andcalcined in the nitrogen atmosphere, and then reduction is performed in the nitrogen atmosphere to obtain the Cu-Ni bimetallic catalyst with the charcoal being the carrier. According to the method ofpreparing the Cu-Ni bimetallic catalyst with the charcoal being the carrier, cellulose originating from biomass is used as a raw material, and the raw material is low in price and wide in source.

The invention relates to a method of producing low-sulfur low freezing point diesel by full-range shale oil, relates to a production method of low-sulfur low freezing point diesel and solves the technical problems that the existing method of producing diesel by shale oil is complex in process and high in investment and operational cost. A material pre-fractionation unit, a reaction unit and a fraction unit are adopted in the method. The method has the advantages that finished diesel yield is high during processing of the full-range shale oil; the quality of the low-sulfur low freezing point diesel meets the national standard IV; a product scheme is flexible, the production of refined diesel and the production of the low-sulfur low freezing point diesel are both considered, and product distribution is adjusted; during the processing of the full-range shale oil, the material pre-fractionation unit is additionally provided with an absorbing column and a flash tank, lightweight shale oil is used as absorbent, LPG components in noncondensable gas can be recycled, applying a product stabilization column to the product fractionation unit to separate LPG and naphtha is avoided, and cost reduction and efficiency increasing are achieved. The invention belongs to the field of diesel production.

The invention discloses a foam carbon-based catalyst and relates to the field of catalysts. The foam carbon-based catalyst is prepared from a carrier which is porous foam carbon with a treated surfaceas well as active metals or active metals and additives combined on the surface of the carrier, wherein the active metals are selected from one or more of the following elements: iron, cobalt, nickel, copper, molybdenum, tungsten, ruthenium, platinum and rhodium, and the active metals exist in the form of a simple substance, an oxide or a carbide; and the additives are selected from one or more of the following elements: manganese, potassium, silver, calcium, magnesium, zirconium, aluminum, zinc, sodium and phosphorus, and the additives exist in the form of a simple substance or an oxide. Thefoamed carbon-based catalyst can adjust and control the selectivity of a reaction product when in use, and the catalytic reaction performance of the catalyst can be improved. The invention also discloses a preparation method and application of the catalyst.

The invention belongs to the technical field of manufacturing of electro-catalysis materials and provides a stainless steel base water electrolysis catalytic electrode and a manufacturing method of the stainless steel base water electrolysis catalytic electrode. According to the stainless steel base water electrolysis catalytic electrode, a three-dimensional micron protrusion array is distributedon a stainless steel matrix. Micro-spheres of different sizes are distributed on the surface of the protrusion array at random. The surfaces of the micro-spheres are covered with oxide nanometer flossy structures formed by disordered stacking of nanometer particles. The manufacturing method of the stainless steel base water electrolysis catalytic electrode comprises the steps that firstly, high-energy-density pulse laser is utilized to conduct ablation on the surface of the stainless steel matrix so that the micron protrusion array can be formed; then, nanosecond pulse laser is utilized to conduct ablation on the surface of the protrusion array so that the micro-spheres and the nanometer flossy structures can be formed, and then the self-supporting electrolytic electrode without the need for an adhesion agent is obtained. The stainless steel base water electrolysis catalytic electrode has excellent water electrolysis hydrogen and oxygen evolution performance, overall water splitting performance and high stability; the manufacturing method is simple and controllable, large-area manufacturing can be achieved, raw materials are low in cost and easy to obtain, and the stainless steel base water electrolysis catalytic electrode can be used for wide application fields such as the field of hydrogen for fuel cell cars, the field of underwater equipment oxygen generation, the field of medical oxygen generation, the field of hydrogen water cups, the field of highland oxygen generation and the field of portable hydrogen and oxygen generating devices.

The invention discloses an iron-based catalyst prepared by a sol-gel combustion method, which is characterized by containing a metal element Fe, a metal element A and a metal element B, wherein A is at least one selected from the group consisting of Mn, Co, Cu, Zn, Ti, Al, Cr, Ni, Ce, and Zr; B is at least one selected from the group consisting of Li, Na, K, Mg, and Ca; each metal element exists in the form of a metal simple substance and/or a metal oxide; and the content of the metal element A in the catalyst is 0.1-50 wt%, the content of the metal element B in the catalyst is 0.01-40 wt%, and the content of the metal element Fe in the catalyst is 50-99 wt%, based on the total amount of the metal elements contained in the catalyst. The catalyst has good resistance to carbon deposition, is used for reaction of preparation of low-carbon olefins by use of synthetic gas, and shows higher catalytic activity and low-carbon olefin selectivity.

The invention discloses a frozen ceramic slurry 3D printing mechanism. The frozen ceramic slurry 3D printing mechanism comprises a scraping device, a freezing device, a working table, a lifting platform, a laser scanning device and a cryogenic box. The scraping device is provided with a scraping knife capable of evenly discharging. The freezing device is provided with a controllable cryogenic freezing plate. The working table is provided with a processing chamber and a waste chamber. A driving device is used for driving the scraping device to lay a layer of slurry on the lifting platform. Unnecessary slurry is recovered by the waste chamber. The freezing device makes contact with a frozen material layer from top to bottom. The laser scanning device selectively irradiates the frozen material layer. The cryogenic box maintains the processing chamber in a cryogenic state to prevent the processed frozen material layer from being melted. Through the frozen ceramic slurry 3D printing mechanism, the material layer can be rapidly solidified to protect a blank against distortion in the layer-by-layer accumulation 3D printing process, and the 3D printing efficiency and processing stability are improved. Besides, a microstructure of a part can be improved by controlling the freezing crystallization process of a solvent in slurry.

The invention provides a Y-containing rear-earth permanent magnet alloy stripe-casting flake. A Y element is added in rare earth alloy Re-Fe-B, an alloy quick-setting and throwing technology is adopted, and a texture composed of a main phase columnar crystal and an intergranular phase is obtained, wherein Y mainly enters a main phase to form a crystal structure of 2:14:1, and a poor Y area is formed in a rare earth-rich phase. According to alloy stripe-casting flake, by regulating the Y content, distribution of the rare earth element in the main phase columnar crystal and the intergranular phase in the stripe-casting flake can be effectively adjusted, a foundation is laid for a rear-earth permanent magnet good in subsequent preparation performance, and the cost of preparing the magnet subsequently can be lowered.

The invention provides a method for producing low-carbon olefin by synthetic gas. The method comprises the following steps: carrying out Fischer-Tropsch synthesis-cracking reaction on the synthetic gas under the action of a multifunctional catalyst, wherein the reaction temperature is 250 DEG C to 400 DEG C, the reaction pressure is 0 to 5MPa, and the total volume space velocity of raw gas is 1000h<-1> to 10000h<-1>; then separating the low-carbon olefin out from a reaction product. The multifunctional catalyst is mainly prepared from the following components in parts by weight: 10 percent to60 percent of Fe2O3, 0.5 percent to 20 percent of MnO, 0.5 percent to 10 percent of K2O, 10 percent to 30 percent of Al2O3 and the balance of a molecular sieve. According to the method provided by theinvention, Fischer-Tropsch synthesis reaction and cracking reaction can be carried out at the same time; the problem in the prior art that the low-carbon olefin selectivity is low is solved; the technology has high sensitivity and the product distribution can be reasonably adjusted in a certain range according to the market quotations of ethylene, propylene and butylene; the method has the characteristics of simplicity in operation and remarkable synergistic effect.

The invention discloses a concentrating fixed-film solar photocatalytic hydrogen production device. The device comprises a liquid storage tank, a base, a bracket, a photocatalytic reactor, a concentrating assembly, a gas-liquid separator and a parameter measuring assembly, wherein a bottom outlet of the liquid storage tank is connected with one end of the photocatalytic reactor through a pump, andthe other end of the photocatalytic reactor is sequentially connected with a gas-liquid separator and a gas flowmeter; the photocatalytic reactor is supported and fixed by the base and the bracket; the photocatalytic reactor comprises a reactor box body and a reactor cover plate having high light transmittance and located on the reactor box body, and the reactor box body is filled with a supported photocatalyst; and the concentrating assembly comprises a compound parabolic concentrator and a planar mirror added via a sunken design. With the concentrating assembly, the utilization rate of solar energy is increased, the distribution of light condensation rays on the photocatalytic reactor can be adjusted, and photocatalytic hydrogen production performance can be improved. By using the supported photocatalyst, extra energy input can be avoided, and operation cost is low; and the supported photocatalyst can be repeatedly used.

The invention provides application of an antibiotic substitute drug melatonin in preventing the infection of meningitis escherichia coli pathogens on child patients. Meningitis-type escherichia coli is separated and identified from muscovy duck cerebrospinal fluid, a meningitis model of 3-week-old ICR mice is constructed for the first time by utilizing the strain, and the successful construction of the mouse meningitis model is evaluated from the aspects of neurological symptom scoring, mortality difference statistics, the damage degree of a blood-brain barrier, expression of meningitis-related inflammatory factors and the like respectively. With antibiotics as references, the mice are treated with the melatonin and the four combined antibiotics respectively, one week later, the disease onset conditions of the meningitis mice are detected, results show that through the melatonin and the combined use of the antibiotics, the neurological symptoms of the meningitis mice can both be reduced, the survival rate of the meningitis mice is increased, integrity keeping of the blood-brain barrier is promoted by the melatonin, the invasion of inflammatory cells into the central nervous systemis reduced, the disease onset of the meningitis in the mice is prevented through the function of the brain-gut axis, and a new antibiotic substitute and treatment strategy are provided for preventingneonatal meningitis diseases.

The invention relates to a high-efficiency water-purifying plant culturing and growth promoting method. The method comprises the steps of culturing and growth promotion of plant seeds and optimized cultivation of plant seedlings. A plant seed growth promoting and cultivation material adopts graphene oxide and nano titanium dioxide. A seedling optimized culture solution comprises main elements, a trace element and a growth factor, wherein the main elements comprise graphene oxide and nano faujasite, and the growth factor comprises cytokinin, sodium humate and molasses isolate. By the method, the biological activity and vitality of seeds and plants in the early stage of plants can be improved, the degradation efficiency of organic pollutants, nitrogen and phosphorus in the aspect of sewage purification at the later stage of the plants, the synergistic effect of the microecological cycle between the roots of the plants and the utilization rate of a carbon source are enhanced; and the sewage purification efficiency is much higher than that of common aquatic plants.