409results about How to "Inhibitory reactivity" patented technology

The invention discloses a silicon trap for coker naphtha and application thereof. In the silicon trap for the coker naphtha, alumina is taken as a carrier, silica is taken as an aid, W, Mo and Ni are taken as hydrogenation components, the pore volume of the silicon trap for the coker naphtha is 0.5-0.70ml / g, the specific surface area is 250-500m<2> / g, the hydrogenation components are 1 to 20 percent based on oxides, and the acid content is 0.3-0.5mmol / g. The silicon trap for the coker naphtha can effectively remove the silicon impurity contained in the coker naphtha, and protects a coker naphtha hydrofining catalyst against permanent deactivation caused by silicon poisoning.

The invention discloses a medlar and red date enzyme and a preparation method thereof, which belong to the technical field of enzyme preparation. Multi-strain composite fungi powder is adopted as a leavening agent; the medlar and the red date are adopted as main raw materials; dietary fiber, pectin hydrolyzate, seasoner extracting liquor, Chinese herbal medicine extracting liquor, enzyme stabilizer and other multifunctional auxiliary raw materials are scientifically compounded and modified; low-temperature processing technology such as ultrasonic cleaning, cryogenic grinding, microwave-assisted high-voltage pulse electric field processing and ultrasonic ripening are mainly adopted in the whole process, so that the natural colors, the flavor, the taste and the content of the active materials of the medlar and the red date are maintained furthest, the biological stability, the non-biological stability and the biological activity of the medlar and red date enzyme are obviously enhanced, the introduction of chemical addition agent is reduced, and the juicing rate of the medlar and the red date as well as the food safety of the enzyme are improved. Finally, the medlar and red date enzyme with high biological activity, strong stability, strong taste, flavor and appetite, long expiration date and edible safety is prepared.

The invention discloses a modified high nickel ternary positive electrode material. The surface of a high nickel ternary positive electrode material is coated with a coating layer containing a fast ion conductor. The fast ion conductor has the chemical general formula of Li3x1La2 / 3-x1Ma1TiNz1O3, Li2+2x2Zn1-x2GeO4 or LiM'2(PO4)3, wherein M represents Ba<2+> and / or Sr<2+>, N represents Al<3+> and / orZr<4+>, x1 is greater than or equal to 0.04 and less than or equal to 0.167, a1 is greater than or equal to 0 and less than or equal to 1, z1 is greater than or equal to 0 and less than or equal to 1, x2 is greater than -0.3 and less than 0.8, and M' represents one or more of Zr, Ti, Ge and Hf. Compared with the existing positive electrode material, the modified high nickel ternary positive electrode material is provided with the coating layer containing the fast ion conductor and the coating layer can react with residual lithium on the surface of the material to reduce residual lithium on the surface of the material and inhibit side reactions of the residual lithium and the electrolyte so that material surface stability and cycle performances are improved. The modified high nickel ternary positive electrode material has good lithium ion deintercalation ability, improves the first discharge capacity of the material and first coulombic efficiency and has a good application prospect. The invention also discloses a preparation method of the modified high nickel ternary positive electrode material and a lithium ion battery.

The invention provides a preparation method of a high silica alumina ratio MCM-22 molecular sieve catalyst. The method comprises the following steps: raw materials of sodium source, silicon source, aluminium source, boron source, templeting agent and deionized water are put in a synthesis reactor according to the mixture ratio and statically or dynamically crystallized for 1-20 days at the crystallization temperature of 110-200 DEG C, and the product is filtered, washed and dried to obtain molecular sieve initial powder; and the obtained molecular sieve initial powder is roasted in the air atmosphere at the high temperature of 450-750 DEG C so as to remove the templeting agent and is exchanged into an ammonium type molecular sieve by an ammonium ion exchange method, the ammonium type molecular sieve is roasted at the temperature of 450-750 DEG C to obtain a corresponding hydrogen type molecular sieve, and the hydrogen type molecular sieve is prepared into the high silica alumina ratio MCM-22 molecular sieve catalyst after being molded. By using the method, the MCM-22 molecular sieve catalyst with controllable silica alumina ratio, high crystallization degree and high silica alumina ratio can be prepared, and the invention breaks through the range of the silica alumina ratio of the MCM-22 molecular sieve catalyst of the conventional method and overcomes the problem of descending of crystallization degree generally existing in the post-processing method.

The invention relates to a biocompatible pre-gelatinized modified starch. The water absorbency is not less than one time, and the biocompatible pre-gelatinized modified starch is taken as biocompatible hemostatic material, biocompatible anti-blocking material, biocompatible tissue-healing promoting material, biocompatible surgical sealant or biocompatible wound closure tissue glue. The invention has the advantages that the biocompatible pre-gelatinized modified starch is directly acted on the wounded area with blood for immediately stopping bleeding, has obviously increased water absorbency and speed of water absorption and greater viscosity and stickiness and further plays the role in preventing the tissue and the blood vessel from being damaged during the process of stopping bleeding; the modified starch is easy to swell or dissolve in water, and is washed by normal saline after the bleeding stopping so as to reduce the residual in the body, to be favorable for wound healing and to avoid the pain due to tearing the gauze and the bandage out; the pre-gelatinized modified starch has the actions of bacterial resistance and anti-inflammatory; and the pre-gelatinized modified starch is stable, not easy to decompose, long in guarantee period, convenient for storage, resistant at high pressure and low pressure, resistant at high temperature and low temperature and not easy to change the physicochemical characteristics.

The invention belongs to the technical field of lithium ion battery preparation, and specifically relates to nickelic ternary anode material power lithium ion battery electrolyte and a preparation method thereof. The electrolyte consists of electrolyte lithium salt, a non-aqueous organic solvent and functional additives, wherein the functional additives comprise an alkyl nitrile additive, fluorinated chain carboxylate, a lithium salt additive and a cathode film forming additive; and the content of the functional additives is 0.5-10% of the weight of the electrolyte. The electrolyte provided bythe invention interacts with transition metal in a nickelic ternary anode material through the functional additives and is decomposed on the surfaces of the anode and cathode to form stable interfacefilms, so as to inhibit the metal ionic catalysis activity and decrease battery side reactions, so that the electrolyte has favorable anti-oxidant and film forming characteristics, is capable of effectively improving the high-temperature storage performance, safety performance and cycle life of nickelic ternary anode material power lithium ion batteries, effectively inhibiting the generation of battery expansion and ensuring the high power characteristic of the batteries at the same time.

This invention relates to an antirust agent for reinforced concrete. The antirust agent is composed of: sodium molybdate 0.01-0.05 wt.%, diethylenetriamine 0.9-4.5 wt.%, allylthiourea 0.08-0.19 wt.%, 1,4-butynediol 0.15-0.75 wt.%, and water as balance. The antirust agent can effectively alleviate and prevent the rusting of the steel bars in the reinforced concrete, as well as alleviate or inhibit the damage to the passivated film of the steel bars by chloric ions. Besides, the antirust agent has such advantages as low application amount.

The invention discloses a built-in permanent-magnetic motor rotor, which comprises a rotating shaft and a rotor iron core, wherein the rotor iron core comprises a pole shoe, at least one permanent magnet body is arranged inside the pole shoe, and the outer circle of the pole shoe is provided with a plurality of grooves. The invention also discloses a motor, which comprises a stator and the rotor. Due to the adoption of the built-in permanent-magnetic motor rotor, the waveform of an air gap field of the motor can be improved, fundamental wave times of the cogging torque fluctuation can be increased, the cogging fundamental wave and the ultra-harmonics torque amplitude can be reduced, and the torque fluctuation caused by the cogging can be reduced.

The invention discloses an alkali-free non-nitrite rust retardant agent for concrete steel bars, which consists of the components (according to weight percentage) as follows: 3-10 percent of zinc gluconate, 20-40 percent of lithium metasilicate, 10-20 percent of ammonium benzoate, 15-25 percent of low molecular weight (alcohol) amine and 20-40 percent of water. The rust retardant agent can obviously relieve damage to the steel bar passive films of chloride ions, has the advantages of environmental protection, alkali free, low usage, good suitability with cement and being capable of improving concrete property properly and the like, is a high-effictive rust retardant agent for concrete steel bars, and can be applied to steel bar concrete structures of water conservancy, railway, civil construction and the like.

The invention provides a multistage layer-coated ternary cathode material for a lithium ion battery, which comprises a ternary cathode material and a multilayer cladding layer coated on the surface ofthe ternary cathode material; A metal oxide layer, a transition layer formed by a metal oxide and a metal phosphate salt, and a metal phosphate layer are sequentially arranged from that inside to theoutside of the multilayer cladding layer, wherein the metal oxide layer and / or the transition layer further comprises a lithium metal oxide of a fast ion conductor, and the transition layer and / or the metal phosphate salt layer further comprises lithium phosphate. A ternary cathode material coated with a plurality of layers is formed by multi-stage coating, thereby realizing the effect of inhibiting the reaction between the surface of the cathode material and the electrolyte, and improving the thermal stability and cycle life of the material through the synergistic effect of different types of surface coatings; While increasing the safety of lithium ion batteries. In addition, the preparation method provided by the invention is simple, can be prepared by using the existing equipment, andsaves the production cost.

The invention relates to a polyvinyl chloride (PVC) pipe reinforced concrete and steel pipe concrete laminated member which belongs to a civil engineering member. A PVC pipe is adopted in an outer layer of the member, a steel pipe is adopted in an inner layer, concrete is filled in the inner steel pipe, reinforced concrete is filled between the outer PVC pipe and the inner steel pipe, end faces of the outer PVC pipe reinforced concrete and the inner steel pipe concrete are level, and geometric centers of sections of the outer PVC pipe and the inner steel pipe are coincide. The outer PVC pipe and the inner steel pipe respectively adopt section forms of circle, square, rectangle, polygon, round end, ellipse and the like. The member has the advantages of common steel pipe concrete laminated members, can improve the bearing capacity and the corrosion resistance while increasing small dead weight, and can be applied to large-diameter pillars in bridge piers and buildings and other related towering structures or pillar members.

The invention discloses a preparation method of a high-crystallinity high-dispersity adjustable-silica-alumina-ratio high-silicon SSZ-39 molecular sieve catalyst. The method comprises the following steps: proportionally adding a sodium source, a silicon source, an aluminum source, fluorine ions, a template, a growth polymerization inhibitor and deionized water into a synthesis kettle, carrying out dynamic or static crystallization in different temperature sections, and carrying out filtration, washing and drying on the product to obtain molecular sieve raw powder; and carrying out high-temperature roasting to remove the template, carrying out ion exchange, and carrying out high-temperature roasting to obtain the high-silica-alumina-ratio SSZ-39 molecular sieve. The high-silica-alumina-ratio SSZ-39 molecular sieve has appropriate acid site, heat stability and pore size. The high-crystallinity high-dispersity controllable-silica-alumina-ratio SSZ-39 molecular sieve can be used for MTO (methanol to olefins) reaction for catalytically converting organic oxides (such as methanol and / or dimethyl ether and the like) into low-carbon olefins, and has the advantages of very high reaction activity and high selectivity for ethylene and propylene.

The invention relates to an environment-friendly steel protecting and repairing coating for concrete structures and a method for preparing the coating. The coating is compounded by components including, by mass, from 0.5 to 10% of organic corrosion inhibitor, from 5 to 35% of thermoplastic or thermosetting resin for realizing toughness and a waterproof sealing performance for a cement base material, from 15 to 50% of cement, from 0 to 4% of surfactant, from 0 to 5% of superfine fibers and the balance water component. The environment-friendly steel protecting and repairing coating in the technical scheme is particularly suitable for protecting the surface of steel exposed outside for a long time and coating to protect the surface of reinforcing steel for a high-durability concrete structure in a harsh environment, can permeate into a concrete base with extremely fine capillary channels and a complicated geometric structure, and accordingly is also applicable to durability repair for damaged concrete structures.

The invention discloses an anti-aging skincare mask containing crithmum maritimum. The anti-aging skincare mask is prepared from a skin conditioner component, an auxiliary component and water, wherein the skin conditioner component is prepared from 2%-6% by mass of butanediol, 2%-5% by mass of glycerin, 0.1%-0.5% by mass of a crithmum maritimum extract, 1%-5% by mass of a pseudoalteromonas fermentation product extract, 1%-5% by mass of acetyl hexapeptide-8, 0.5%-3% by mass of a Centella asiatica extract, 0.5%-2% by mass of D-panthenol, 0.03%-0.1% by mass of sodium hyaluronate, 1%-5% by mass of Chamomile German water, 0.5%-3% by mass of corn protein amino acids, 1%-3% by mass of a lotus extract, 0.5%-2% by mass of bio-saccharide gum-1 and 0.1%-0.3% by mass of allantoin. The anti-aging skincare mask containing crithmum maritimum can inhibit lipid peroxidation and inflammatory reaction, rebuild water balance and brighten complexion and has effects of preserving moisture, resisting aging, brightening the complexion and realizing anti-allergic repair.

The invention relates to a method for preparing nano titanium diboride polycrystalline powder, which comprises the following steps of: mixing raw materials B2O3, TiO2, Mg and KBH4 uniformly, directly performing self-propagating reaction or performing self-propagating reaction after briquetting on the obtained mixed raw materials, and separating and purifying the self-propagating reaction product to obtain the nano titanium diboride polycrystalline powder. The method has the advantages that: (1) the method controls the heat effect of the reaction system, can save energy, reduce the self-propagating reaction temperature and inhibit side reaction and byproduct impurities, and greatly improves the purity of the product; (2) a large amount of gas formed in the reaction process inhibits product grain growth and sintering agglomeration and realizes grain size control of the nano TiB2; and (3) the method has simple reaction process and technique, is easy to control and suitable for industrial production, reduces the preparation cost for preparing the nano titanium diboride polycrystalline powder, and has great utility value.

The invention relates to the technical field of medicine, and provides a snow lotus extract, a snow lotus cataplasm and a preparation method thereof. The snow lotus extract contains syringin, chlorogenic acid and rutin, the contents of which are respectively 6 times, 16 times and 200 times of the snow lotus injection. The snow lotus cataplasm forms snow lotus extract, adhesive, humectant, filler, thickening agent, cross linker and transdermal enhancer according to weight proportions of the raw materials. The results of the pharmacodynamic test of the invention indicate that the snow lotus cataplasm of the invention can obviously antagonize chemical pains, inhibit injury reaction and have anti-inflammatory effect; the invention has good performance on layer residue, skin tracing ability, using comfortableness, skin uncomfortable symptoms and tearing pain sense, can be torn and pasted repeatedly, has good biocompatibility, affinity, air permeability and perspiration resistance to the skin, and is not easy to cause allergy.

The invention relates to a method for preparing nano boron powder. B203, Mg and KBH4 are taken as reaction materials, and mixed at the protection of argon at the temperature of 700-850 DEG C to trigger the self-propagating reaction; and the obtained reaction rough product is separated and purified to obtain the nano boron powder. The method of the invention has the following beneficial effects: (1) reactivity diluent KBH4 is added in a B203 / Mg system on the basis of synthesizing boron powder by traditional magnesiothermic reduction and by virtue of endothermic reaction, so as to control heat effect of the reaction system, realize energy conserving effect and control self-propagating reaction temperature, thus restraining side reaction and by-product impurities, effectively improving the purity of the product and acquiring amorphous boron powder with higher purity; (2) reaction product particles are avoided from sintering and agglomerating due to the generation of H2O and H2; realizing to refine and control boron powder granularity to prepare the nano boron powder; and (3) the method of the invention has moderate and controllable reaction conditions, simple process and reduced energy consumption, and is suitable for industrial production.

The invention relates to a reformate deolefination method without hydrogen, which is mainly used for solving the problems in the prior art that deolefination refining agent is low in activity, short in service life and great in aromatic hydrocarbon loss. The technical scheme adopted by the invention is as follows: olefins in reformate are removed because of polymerization or alkylation reaction carried out on a catalyst for 0.3-20h<-1> at the temperature of 120-240 DEG C and under the pressure of 0.5-3.0 MPa, wherein the catalyst contains 0.1-10 parts by weight of at least one metal or oxide thereof selected from Ni, MO, Zr, and Nb, 0.01-2.00 parts by weight of at least one element or oxide thereof selected from Cl, Br and S, 0.05-5 parts by weight of at least one element or oxide thereofselected from F and P, 20-90 parts by weight of molecular sieve and 10-80 parts by weight of at least one selected from SiO2 and Al2O3 or a mixture thereof, thus the problems in the prior art are solved. The method can be used for industrial production of olefin reduction in reformate.

The invention relates to a permanent magnet drive motor for a solar tracking system, which comprises an enclosure, a stator and a rotor which are arranged in the enclosure, wherein, the stator comprises a stator core and a stator winding which are fixed on an inner wall of the enclosure, and the stator core comprises a stator magnetic yoke, a stator slot and stator teeth; the rotor comprises a rotating shaft and a rotor core, and a permanent magnet slot is uniformly arranged along the periphery of the rotor core; the permanent magnet slot is internally inlaid with radial magnetized rectangular strip magnetic steel, the radial magnetized rectangular strip magnetic steel and a pole piece form a permanent magnet pole, and an excircle of a rotor pole piece is in a concentric or excentric arc curved surface shape to form uniformly or non-uniformly symmetrical air gap; semi-circle grooves are arranged on two ends of the permanent magnet slot in which one of two pieces of adjacent radial magnetized rectangular strip magnetic steel is arranged; and rectangular supporting bars are radially inserted in the permanent magnet slot in which the V-shaped radial magnetized rectangular strip magnetic steel is arranged. The permanent magnet drive motor has the characteristics of high efficiency, high output power, high reliability, low moment fluctuation and the like.

The invention relates to a lithium-rich positive electrode modified material of a lithium ion battery and a preparation method of the lithium-rich positive electrode modified material, and belongs to the technical field of a positive electrode material of the lithium ion battery. The lithium-rich positive electrode modified material comprises a positive electrode material and a three-class metal oxide cladding material, wherein the cladding material is TiO2, MnO2 or Al2O3. The preparation method comprises the steps of performing water bath stirring and heating to obtain gel by a sol-gel method, performing drying to obtain dried gel, respectively performing low-temperature pre-sintering and high-temperature calcination, obtaining the positive electrode material after cooling and grinding, dispersing the prepared positive electrode material and TiO2 and MnO2 cladding materials in deionized water, performing constant-temperature stirring, and performing standing, filtering, washing, drying and calcination to obtain the lithium-rich positive electrode modified material of the lithium ion battery. While for Al2O3, a liquid phase cladding method is adopted, the positive electrode material is dispersed in an aluminum nitrate nonahydrate solution, and the required modified material is obtained after constant-temperature stirring, standing, filtering, washing, drying and calcination. The preparation method is simple and easy to operate, the lithium-rich positive electrode modified material obtained through preparation is uniform in particle grain distribution and high in crystallinity, and the rate performance and the cycle performance of the material after cladding both are obviously improved.

The invention discloses a silicon carbide / copper silicon alloy codual-continuous composite and a preparation method thereof. The composite material comprises the following components in volume fraction: 35-50 percent of porous silicon carbide ceramics and 50-65 percent of copper silicon alloy, wherein the atomic percentage composition of silicon in the copper silicon alloy is 15-40 percent. The preparation method comprises two key processing steps of: preparing the porous silicon carbide ceramics and vacuum infiltrating porous silicon carbide through the copper silicon alloy. Silicon is adopted as an alloying element of copper, so that the problems of wettability and reactivity between copper and silicon carbide are solved simultaneously. In addition, the invention adopts a vacuum infiltrating process as a near net forming preparation process, and specialized die casting equipment and a specific module are not needed, so that the preparation process is simple, has low cost, and can be used for manufacturing various composites with complicated shapes.

The invention relates to a lithium ion battery lithium-enriched cathode material, and an improving method thereof, and belongs to the technical field of lithium ion batteries cathode material. The lithium ion battery lithium-enriched cathode material comprises a cathode material, and three commercial lithium ion cathode clad materials including LiCoO2, LiMn2O4, or LiFePO4. According to a preparation method, sol-gel method and water batch stirring heating are adopted so as to obtain a gel; drying is adopted so as to obtain a dried gel; low temperature presintering and high temperature sinteringare adopted respectively, and cooling and grinding are adopted so as to obtain the cathode material; the obtained cathode material and LiCoO2 and LiMn2O4 clad materials are dispersed in deionized water, constant temperature stirring, standing, filtering, washing, drying, and sintering are adopted so as to obtain the lithium ion battery lithium-enriched cathode material; liquid phase cladding is adopted for LiFePO4, the cathode material is dispersed in an aluminum nitrate enneahydrate solution, constant temperature stirring, standing, filtering, washing, drying, and sintering are adopted so asto obtain the needed modified material. The preparation method is simple; operation is convenient; the obtained lithium ion battery lithium-enriched cathode material is uniform in particle size distribution, high in degree of crystallization; the rate capability and the circulating performance of the obtained material after cladding are improved obviously.

The invention provides a double-oxide co-coated high-nickel lithium battery positive electrode material and a preparation method thereof. A high-nickel ternary precursor material is prepared through aco-precipitation method; and then, vacuum pre-sintering is carried out after fully mixing and ball-milling with lithium hydroxide and calcium hydroxide; later, sulfate, metal oxide titanium oxide, cerium oxide and the like are added into gel synthesized in an organic solvent; and the high-nickel lithium battery positive electrode material coated by a double-oxide layer is obtained after sintering. According to the method in the invention, the problem that the alkali content of the traditional high-nickel ternary material is excessively high in the precursor preparation process is solved; theprepared double-oxide-layer coated high-nickel lithium battery positive electrode material forms a physical isolation layer, so that the corrosion of HF in the electrolyte and the generation of side reactions are inhibited, the high-nickel lithium battery positive electrode material is protected; therefore, the cycling performance of the battery is improved; meanwhile, the introduced sulfate ionsform a stable electrolyte layer, so that the decomposition of the electrolyte is inhibited, and the cycling performance of the battery is further improved.

The invention relates to the coating technique, in particular to an Al / Al2O3 / MCrAlY composite coating used in Ti-Al alloy and a preparation method thereof, which aims at improving the high-temperature oxidation resistance of the Ti-Al alloy, guaranteeing the serviceability of the Ti-Al alloy in the high-temperature environment and solving the problem of non-matching between the MCrAlY coating and the Ti-Al alloy and is used for the high-temperature protection of the Ti-Al alloy. The composite coating comprises an Al / Al2O3 diffusion impervious layer and an MCrAlY alloy protective coating which are deposited on a substrate of the alloy in sequence; the thickness ratio among an Al film, an Al2O3 film and the MCrAlY protective coating is (1 to 5): (1 to 5): (20 to 50); in the MCrAlY alloy, M indicates Ni, Co or Ni plus Co. The arc ion plating technique is adopted to deposit the Al / Al2O3 diffusion impervious layer and then the MCrAlY coating on the substrate of the alloy. The composite coating of the invention has good high-temperature oxidation resistance as well as good bonding strength and high-temperature stability and can provide good high-temperature protection to the Ti-Al alloy.

The invention discloses a lithium ion battery, a positive electrode material of the lithium ion battery and a preparation method for the positive electrode material. The positive electrode material is a lithium-rich manganese-base positive electrode material with the surface coated with a fast ion conductor material, and is prepared with a liquid phase method; and the lithium ion battery is a battery taking the positive electrode material as a positive active substance. Compared with the prior art, the positive electrode material of the lithium ion battery adopts a fast ion conductor as a surface coating material, so that the rate performance and the cycle stability under high voltage are greatly improved, and the battery taking the positive electrode material as the positive active substance has the advantages of high rate performance, high specific capacity, high cycle stability, high first efficiency and the like.

The invention relates to a spraying and falling film composite condensing unit used for coal or biomass pyrogenation liquification. A cylindrical condenser is divided into an upper part, a central part and a lower part, wherein the upper part is a spraying condensing section, the top of which is equally distributed with spraying nozzles; the central part is a falling film condensing section which is provided with a tube type indirect heat exchanger; the lower part is a liquid storage section. The condensing unit also comprises a fluid delivery pump, a cooling tower and corresponding pipelines and so on. Experiments show that, the spraying and falling film composite condensing unit and the self-contained complete component can meet the condensing requirement of the biomass pyrogenation liquification equipment, with the oil production capacity being 50-800 kg / h oil-producing, the liquid yield being greater than or equal to fifty percent when utilizing straw as the pyrogenation material, the liquid yield being greater than or equal to sixty percent when utilizing wood dust as the pyrogenation material, calorific values of the biological oil being all 16-18MJ / kg, the viscosity being 40-120mm<2> / s and the proportion being 1.1-1.2.

The present invention is one kind of ionic liquid catalyst for produce alkylated oil and its preparation process. The catalyst is ionic liquid modified with sulfur or oxygen containing organic compound, benzene or alkyl derivative of benzene, and is used in preparing alkylated oil. It possesses alkylation selectivity, and the alkylated oil product has high octane number, C8 component accounting for 70-90 %, and the outstanding advantage of trimethylpentane proportion in the C8 component over 90 %. In addition, the catalyst can result in product yield up to 170-180 vol% of olefin feed.

The invention relates to a new multicrystal silicon reduction production technology. In the initial stage of the reaction, by increasing the temperature, the deposition rate can be increased and the silicon rod can grow fast; as the total flow rate in the furnace is low, even the hydrogen content is low, the occurrence rate of the side reaction is relatively low; in the medium stage of the reaction, when the silicon rod grows continuously, by reducing the temperature and increasing the hydrogen content, the pyrolytic reaction and side reaction can be inhibited; by increasing the total flow rate, the reaction rate can be increased; and in the later stage of the reaction, by further increasing the hydrogen content and the flow rate and maintaining the temperature, the violent side reaction caused by the increase of the active area can be inhibited. By optimizing the reaction conditions of reduction, trichlorosilane can be effectively converted and the silicon rod can grow better; meanwhile, the pyrolytic reaction can be inhibited, the main reduction reaction can be performed better and the effect is obvious; and the by-products can be reduced and the comprehensive cost of multicrystal silicon can be reduced.

The invention relates to a catalytic conversion method used for raising gasoline octane number, which is characterized in that high-quality raw oil and a low activity heat regenerated catalyst are contacted at the lower part of a reactor for cracking reaction, the generated oil gas and a catalyst containing carbon are moved upwards under a certain reaction environment for performing a selective hydrogen transfer reaction and an isomerization reaction, the reaction products are separated, the raw catalyst is stripped and regenerated for circular usage; diesel oil fraction in the reaction product is cut to a light diesel fuel fraction and a heavy diesel fuel fraction, the heavy diesel fuel fraction is individually performed hydrotreatment or / and performed hydrotreatment with a recycle oil fraction and an oil slurry fraction to obtain a hydrogenation heavy diesel fuel fraction, the hydrogenation heavy diesel fuel fraction is individually returned or / and returned with the light diesel fuel fraction to the reactor or / and other reactors for further reaction. The method of the invention is capable of increasing the gasoline yield by more than 5wt%, increasing the octane number by 1 unit, increasing the isobutene content in liquefied gas by more than 30wt% and increasing the alkene content in gasoline by more than 25wt%.