209 results about "Octane" patented technology

The invention discloses a Fe-GL-Fe < 0 > catalyst and a preparation method and application thereof, and belongs to the technical field of water treatment. The preparation method is simple, the requirement for equipment is low, the prepared Fe-GL-Fe < 0 > catalyst can effectively remove perfluorinated compounds such as perfluorooctanoic acid, perfluorooctane sulfonic acid, perfluorononanoic acid and perfluorooctane sulfonic acid in water under the environment atmosphere condition without external energy input, and the removal rate and the defluorination rate are both larger than 95%; the catalyst belongs to a solid catalyst, is convenient to separate from water, is recycled, keeps a high removal effect, and is low in metal ion dissolution rate.

The invention discloses an air environment preparation method of a perovskite blue light emitting diode. The air environment preparation method comprises the following steps: S1, preparing a hole injection layer on the surface of an ITO anode; s2, preparing an interface modification layer on the upper surface of the hole injection layer to obtain an intermediate substance; s3, preparing a perovskite blue light emitting layer on the interface modification layer to obtain a substrate with a light emitting layer; s4, evaporating an electron injection layer on the surface of the light-emitting layer; and S5, evaporating a cathode on the surface of the electron injection layer. An alkane anti-solvent (isooctane, n-octane and n-hexane) is introduced for treatment in the process of processing a light-emitting layer by a solution, so that the brightness and the electroluminescent external quantum efficiency of the device are improved, and compared with the traditional process of preparing blue light PELEDs in an air environment by adopting diethyl ether as a treatment solvent, the electroluminescent external quantum efficiency of the device is improved by about one time. The electroluminescent spectrum of the perovskite blue light PeLEDs disclosed by the invention can show relatively good stability under the driving of different voltages and time.

The invention addresses the instability and toxicity of organometallic compounds used as fuel additives, which can pose environmental and health risks during handling. While these additives improve fuel combustion, efficiency, and reduce emissions by increasing octane, their handling exposes humans and the environment. This invention provides a formulation, coating process (spraying, immersion, extrusion, powder coating), and testing method to prevent direct contact. Coatings, comprising organic hydrocarbons, do not hinder octane enhancement, ensure deposit-free release in fuel tanks, and clean the fuel system. The coating also prevents sublimation during storage. Performance is evaluated by measuring weight loss under vacuum.

Provided herein are substituted 6-azaspiro[2.5]octane-6-carboxylic acid 1,1,1,3,3,3- hexafluoropropan-2-yl ester compounds and pharmaceutical compositions comprising the same. The compounds and compositions provided herein are useful as inhibitors of MAGL. Further, the compounds and compositions as provided herein are useful in the treatment of diseases and disorders that benefit from the inhibition of MAGL.

This invention discloses a catalytic cracking co-catalyst with high resistance to thermal abrasion, comprising a molecular sieve, a matrix, a binder, and a binder modifier. The molecular sieve has an MFI structure, and the molecular sieve with a pore diameter less than 0.7 nm accounts for 50 wt% to 100 wt% of the total molecular sieve. The matrix is ​​composed of a γ-alumina precursor with a colloidal index ≤ 50% and clay. The binder is prepared from phosphorus-containing and aluminum-containing compounds. The raw materials for the binder modifier include multi-chelate ligands, precursors of at least two coordination metals, alcohols, and organic acids. The binder, binder modifier, and matrix are all mixed in a high-shear emulsifier. Compared with existing catalytic cracking co-catalysts for propylene and octane number, the catalytic cracking co-catalyst provided by this invention has higher resistance to thermal abrasion, larger pore volume, and higher molecular sieve content.

The application discloses a kind of hydrophilic polyvinylidene fluoride oil-water separation membranes and preparation method thereof, belong to oil-water separation membrane technical field.The preparation method steps include: with 2,2-dimethoxy-2-phenyl acetophenone as photo initiator, 3,6-dioxane-1,8-octane dithiol and polyethylene glycol diacrylate as modifier, by photo initiation mercapto-olefin gradually polymerization method is modified to alkali treated PVDF membrane, and hydrophilic polyvinylidene fluoride oil-water separation membrane is prepared.The application is grafted to PVDF separation membrane surface by photo initiation mercapto-olefin gradually polymerization method, and hydrophilic separation membrane is obtained.The preparation method provided by the application has the characteristics of simple process, low cost and the like, and the prepared hydrophilic membrane can be further developed and utilized as sewage treatment separation membrane, hemodialysis membrane.

The invention discloses a cross-linked polystyrene anion exchange membrane as well as a preparation method and application thereof. The preparation method of the cross-linked polystyrene anion exchange membrane comprises the following steps: firstly, taking styrene and p-chloromethyl styrene as monomers, and obtaining a copolymer through bulk polymerization under the action of an initiator; the preparation method comprises the following steps: firstly, preparing a copolymer from polystyrene, then preparing a membrane casting solution from the copolymer and 1, 4-diazabicyclo [2.2. 2] octane, casting to form a membrane, then immersing the obtained membrane into a trimethylamine aqueous solution for complete quaternization, and finally treating in a KOH aqueous solution to obtain the cross-linked polystyrene anion exchange membrane. The invention provides an application of the cross-linked polystyrene anion exchange membrane in alkaline electrolyzed water. The anion exchange membrane is simple in synthesis process, reagents are cheap and easy to obtain, the contradiction between the OH <-> conductivity and the size stability of a traditional anion exchange membrane can be greatly balanced, and meanwhile the anion exchange membrane has high alkaline stability and shows excellent electrolytic performance in alkaline electrolyzed water.

The application discloses a kind of piperazine compound polyoxyethylene ether composition and preparation method thereof, it is related to polyoxyethylene ether material technical field.The piperazine compound polyoxyethylene ether composition includes the following weight parts of raw materials: piperazine compound polyoxyethylene ether 30-40 parts, antioxidant 1-1.5 parts, deionized water 35-45 parts.The application is generated intermediate 1 by 1,4-di (2-chloroethyl) piperazine and 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-1-octane amine reaction;Intermediate 1 and 8-chlorooctanoic acid reaction generate intermediate 2;Intermediate 2 and lauryl alcohol polyoxyethylene ether reaction generate piperazine compound polyoxyethylene ether.The piperazine compound polyoxyethylene ether composition prepared by the application has good surface tension and chemical corrosion resistance.

The present application relates to the fine chemical technology field, specifically to a kind of preparation of bis (4-tolyl sulfenyl) di-deuteromethane method.The domestic research and synthesis of bis (4-tolyl sulfenyl) di-deuteromethane are less reported, only a few foreign literatures provide corresponding preparation method.Aiming at the above problems, the present application provides a kind of preparation of bis (4-tolyl sulfenyl) di-deuteromethane method, the present application is reacted by 4-methyl phenyl sulfenol and 1-(chloro di-deuteromethyl)-1,4-diazabicyclo [2.2.2] octane-1-ammonium chloride in the acetonitrile solution containing HI, bis (4-tolyl sulfenyl) di-deuteromethane is successfully prepared, the synthetic route of the present application is simple and efficient, raw material is easy to obtain, and has good commercial value.

The present invention relates to use of a pharmaceutical composition for multiple myeloma containing 5-fluoro-2-[(4-{7-[(1S,3S,4R)-5-methylidene-2-azabicyclo[2.2.2]octane-3-carbonyl]-2,7-diazaspiro[3.5]nonan-2-yl}pyrimidine-5-yl)oxy]-N,N-di(propan-2-yl)benzamide.

The invention discloses 4, 5-bis (fluorine gem dinitro)-1, 2, 3-triazole and a preparation method thereof, and the preparation method specifically comprises the following steps: step 1, adding 4, 5-bis (fluorine gem dinitro)-1, 2, 3-triazole potassium salt, 1-chloromethyl-4-fluoro-1, 4-diazotized bicyclic 2.2. 2 octane bis (tetrafluoroborate) salt and a reaction solvent into a reactor, and stirring until the materials are completely dissolved; 2, after dissolving is completed, reacting at room temperature; and 3, after the reaction is finished, spin-drying the solvent to obtain a solid, dissolving the solid by using an organic solvent, filtering, and concentrating to obtain a colorless liquid 4, 5-bis (fluorine gem dinitro)-1, 2, 3-triazole. The calculated density of the 4, 5-bis (fluorine gem dinitro)-1, 2, 3-triazole is large, the density of the 4, 5-bis (fluorine gem dinitro)-1, 2, 3-triazole is 2.01 g / cm < 3 >, and the theoretical density of 5-amino-3-nitro-1, 2, 4-triazole and the theoretical density of 3, 5-dinitro-1, 2, 4-triazole compounds in comparison files are 1.82 g / cm < 3 > and 1.83 g / cm and are improved by 10.4% and 9.8%.

The invention discloses a dispersion-stable amphiphilic silicon-organic hybrid nano oil displacement agent and a preparation method thereof, and belongs to the technical field of nano oil displacement agents. According to the invention, tetraethyl orthosilicate is used as a silicon source to synthesize a nano silicon dioxide material which is small in particle size and easy to disperse under an oil bath heating condition, amino modification is realized through a'one-pot method 'and a polydopamine coating strategy, and then combination of a silicon-organic hybrid nano material and an amphiphilic group is successfully realized through a condensation reaction. The nano oil-displacing agent is prepared. The nano oil-displacing agent prepared by the invention is not easy to agglomerate and has excellent dispersion stability; as a surfactant, the nano oil-displacing agent shows excellent emulsifying property and interfacial activity on various alkanes such as toluene, normal octane, cyclohexane and the like. The silicon-organic hybrid nano oil displacement agent provided by the invention can be used for preparing a water-oil two-phase emulsion system with a high emulsification rate (100%), and the emulsion system is dense in emulsified bubbles, small in emulsion droplet particle size and excellent in stability.

The application relates to the technical field of desulfurizers, and particularly discloses a rare earth metal oxide desulfurizer and a preparation method thereof. The preparation method comprises the following steps: S1: dissolving cerium salt, lanthanum salt and glucose in water to obtain solution A; S2: impregnating pre-calcined gamma-Al2O3 with the solution A, drying, calcining at 300-400 DEG C for 2-4 hours, cooling, and obtaining a loaded substance A; S3: dissolving copper salt, nickel salt and citric acid in water to obtain solution B; S4: impregnating the loaded substance A with the solution B, drying, calcining at 450-550 DEG C for 2-4 hours, cooling, and obtaining a loaded substance B; and S5: placing the loaded substance B in a reducing atmosphere, heating to 300-400 DEG C, keeping for 2-3 hours, cooling, and obtaining the rare earth metal oxide desulfurizer. The rare earth metal oxide desulfurizer prepared by the application has relatively high desulfurization efficiency and octane value RON retention rate.

The invention relates to the technical field of high-octane gasoline preparation and carbon dioxide conversion, in particular to application of a composite catalyst in preparation of high-octane gasoline by coupling crude oil and carbon dioxide. The invention provides application of a composite catalyst in preparation of high-octane gasoline by coupling crude oil and carbon dioxide. The composite catalyst comprises a metal modified molecular sieve and active metal and / or active metal oxide, the content of acid in the metal modified molecular sieve is greater than or equal to 0.1 mmol / g, and the acid in the metal modified molecular sieve comprises Bronsted acid and Lewis acid. The composite catalyst catalyzes crude oil and carbon dioxide to be coupled, and the purpose of large-scale preparation of high-octane gasoline can be achieved.

The application belongs to the technical field of leveling agents, and specifically discloses a fluorosilicon wetting leveling agent, a preparation method and application thereof. In the application, dimethylethoxysilane, 1,8-bis(triethoxysilane) octane and polyethyl silicate are subjected to hydrolysis reaction and polymerization reaction to obtain a polymerization liquid; then, the polymerization liquid, double-end side-chain vinyl silicone oil and hydrogen-containing fluorosilicone oil are subjected to a silicon-hydrogen addition reaction to prepare the fluorosilicon wetting leveling agent. The fluorosilicon wetting leveling agent has excellent leveling performance, can effectively reduce surface tension, and can improve the smoothness of a coating film and the stability of paint.

This invention discloses a novel method for preparing a clean fuel additive, relating to the field of clean fuel additive technology. Its components include: a main cleaning agent: Mannich base; a dispersant: polyetheramine; a surfactant: highly active polyisobutylene; an antioxidant: N,N-di-sec-butyl-p-phenylenediamine; an octane booster: dimethyl carbonate; a solvent: 120# solvent oil; a combustion improver: C9-C11 mixed olefins; a stabilizer: trimethylolpropane; an ignition promoter: nitrobenzene; and auxiliary additives: n-dodecane, sodium polystyrene sulfonate, and eugenol methyl ether. This invention achieves a significant synergistic effect among the core components such as Mannich base, polyetheramine, polyisobutylene, amine antioxidants, and dimethyl carbonate. This synergistic effect allows the additive to comprehensively optimize the cleanliness, anti-knock properties, stability, and combustion efficiency of fuel at a relatively low total addition amount.

The present application relates to the technical field of aviation gasoline, and discloses unleaded aviation gasoline and a preparation method thereof.The unleaded aviation gasoline comprises: 75-85 wt% of polymethylbenzene, and 15-25 wt% of at least two of alkylate, a side line distillation component of an alkylate device, light naphtha and isopentane; wherein the motor octane number of the polymethylbenzene is not less than 108.The product quality index of the unleaded aviation gasoline meets the standard of the American Society for Testing and Materials, that is, the technical requirement of ASTM D7719-2018 high-aromatic unleaded aviation gasoline.The unleaded aviation gasoline has the characteristics of good component continuity, stable combustion and high motor octane number, and meets the high-standard use requirement of unleaded and high-octane aviation gasoline.

This invention belongs to the field of petroleum extraction technology, specifically relating to a high-temperature resistant oil displacement agent and its preparation method. The method includes: in a nitrogen-filled reactor, under the action of a catalyst, trimethylolpropane allyl ether and 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecylfluoro-8-iodooctane undergo an addition reaction; next, a sulfonation reaction occurs with chlorosulfonic acid; and finally, a substitution reaction occurs with dodecylamine to obtain the product oil displacement agent. The molar ratio of 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecylfluoro-8-iodooctane, chlorosulfonic acid, dodecylamine, and trimethylolpropane allyl ether is 0.8-1.2:1.8-2.4:0.8-1.2:1. The molecular formulas of the main components of the oil displacement agent are as follows: [Insert molecular formula here]. This invention's high-temperature resistant oil displacement agent features low interfacial tension, good temperature resistance, and a high degree of enhanced oil recovery.

The invention relates to a method for producing gasoline by ethylene oligomerization, which comprises the following steps: contacting an ethylene-containing raw material with an oligomerization catalyst to carry out oligomerization reaction to obtain an oligomerization reaction material; wherein the oligomerization catalyst comprises an FER structure molecular sieve; carrying out gas-liquid separation on the oligomerization reaction material to obtain a gas product and a liquid product; and separating the liquid product to obtain gasoline. According to the method, the oligomerization catalyst containing the FER structure molecular sieve is used for catalyzing ethylene oligomerization, the yield of gasoline in the obtained oligomerization product is high, the content of olefin in gasoline can be obviously increased, and the content of aromatic hydrocarbon can be reduced; the light gasoline obtained by separating the obtained gasoline product mainly comprises C5-C6 components, the total content of olefin and isoparaffin in the C5-C6 components is more than 90 wt%, and the light gasoline is suitable for being used as a blending component of high-octane gasoline.

The invention discloses a preparation method of a gasoline selective hydrogenation catalyst, which comprises the following steps: (1) impregnating a carrier with an impregnation liquid containing active metals Mo and Co, and drying to obtain a first-stage hydrodesulfurization catalyst; (2) impregnating the first-stage hydrodesulfurization catalyst obtained in the step (1) with an impregnation liquid containing alkali metal and / or alkaline earth metal, and drying to obtain a second-stage hydrodesulfurization catalyst; and (3) roasting the second-stage hydrodesulfurization catalyst obtained in the step (2) under a CO and / or CO2 atmosphere condition with a certain concentration to obtain a finished product catalyst. The catalyst prepared by the method disclosed by the invention well inhibits an olefin saturation active center, is smaller in octane number loss when being applied to a gasoline selective hydrogenation process, and has higher desulfurization activity and selectivity.

The present invention belongs to the technical field of preparation of oxadiazole derivatives. The present invention provides a method for preparing 2-amino-1,3,4-oxadiazole derivatives by electrocatalysis, comprising the following steps: adding 0.2mmol of benzoylhydrazide compounds, 0.4mmol of tetrabutylammonium iodide, 0.4mmol of 1,4-diazabicyclo[2.2.2]octane, 0.4mmol of sodium bicarbonate, and 6mL of acetonitrile to an electrolytic cell; then adding 0.3mmol of phenyl isothiocyanate compounds dropwise; reacting under a DC constant current between an electrode anode and an electrode cathode. The present invention adopts electrocatalysis with benzoylhydrazide and phenyl isothiocyanate as reaction substrates, acetonitrile and other cheap and less toxic reagents as solvents, and passing current to replace the oxidant in conventional reactions, thereby synthesizing oxadiazole compounds under mild and green conditions.

The application relates to the field of hydrodesulfurization catalysis technology, and discloses a modified alumina carrier and a preparation method and application thereof.The modified alumina carrier comprises silicon oxide, potassium oxide, zirconium oxide, lanthanum oxide, copper oxide and alumina; the volume percentage of the pore volume with a pore diameter of 13-23 nm in the total pore volume is 63-85%, and the relative crystallinity is not less than 95%. The modified alumina carrier with concentrated pore distribution and high crystallinity is beneficial to improving the desulfurization activity and selectivity of a catalyst and reducing the octane loss.

The invention relates to the technical field of medicinal chemistry, in particular to a 2-methyl-2-azabicyclo [3.2. 1] octane derivative which has a structure as shown in a general formula I or a general formula II or pharmaceutically acceptable salt, solvate, hydrate, isomer or prodrug of the 2-methyl-2-azabicyclo [3.2. 1] octane derivative, and a preparation method and application of the 2-methyl-2-azabicyclo [3.2. 1] octane derivative. As an acetylcholine receptor agonist, the compound shows high activity and high selectivity to M3 receptor subtypes. In-vitro experiments show that under the concentration of 40 mu M, the receptor excitation rate of the compound (such as 9a, 10a and the like) exceeds 95%, and is obviously superior to that of a positive control drug Aceclidine (48.65%). Due to the characteristic, the compound can generate a powerful pupil contraction pinhole effect by efficiently exciting an eye iris M3 receptor so as to improve near vision, and meanwhile, stimulation to ciliary muscles and related side effects are expected to be reduced due to high selectivity of the compound.

This invention relates to the field of new energy and liquid carbon fuel technology, specifically to a high-cleanliness methanol alternative fuel for vehicles and its preparation method. The method includes raw material mixing and vaporization, atmospheric pressure gas-phase catalysis, and multi-stage condensation and separation steps. The method combines base methanol with hydrocarbon additives and introduces them into a composite mixed-bed molecular sieve catalyst containing aromatic cascade, etherification, and alkylation active units, as well as an anti-coking flow carrier. Its core principle is to enhance the octane number by following the atmospheric pressure gas-phase aromatization and cascade mechanism, generate ethers in situ as phase stabilizers and hydrogen bonding agents, and utilize a mesoporous carrier to reduce steric hindrance and promote macromolecular desorption. This invention differs from the high-pressure reaction conditions of traditional methanol-to-gasoline processes by overcoming the defects of methanol fuel phase separation upon contact with water and catalyst coking through a one-step atmospheric pressure gas-phase conversion. It eliminates the need for physical co-solvents and significantly extends the catalyst regeneration cycle.

The invention provides a CAU-10-pydc membrane, a preparation method thereof and application of the CAU-10-pydc membrane in separation of hexane isomers. The preparation method comprises the following steps: mixing a metal salt, an organic ligand and a deprotonation agent in a solvent, and carrying out homogeneous reaction to obtain a CAU-10-pydc nanocrystal; cAU-10-pydc nanocrystals are dispersed on the surface of a supporting body, the supporting body is added into a reactor containing metal salt, an organic ligand, a deprotonation agent and a solvent to be subjected to a hydrothermal synthesis reaction, a CAU-10-pydc membrane is formed, and the membrane material has high integrity, durability and high compactness. The preparation method of the CAU-10-pydc film is simple and easy to operate, the synthesis condition is mild, the raw materials are green and low in cost, and the preparation method is suitable for large-scale production; when the CAU-10-pydc membrane is applied to separation of hexane isomers, separation of hexane isomers with low octane number and hexane isomers with high octane number can be realized.

Ru-supported carbon materials having characteristic surface chemistry (Bronsted acidic phosphate groups, Lewis basic N-groups selected from the group consisting of Lewis basic pyridine N-groups, pyrrole N-groups and quaternary N-groups, and oxygen functional groups), when hydrogenating aqueous levulinic acid (0.47 M and 0.95 M) to gamma-valerolactone with near stoichiometric H2 under mild conditions (80 DEG C to 95 DEG C), the Ru-supported carbon materials having surface chemical properties (Bronsted acidic phosphate groups, Lewis basic N-groups selected from the group consisting of Lewis basic pyridine N-groups, pyrrole N-groups, and quaternary N-groups). It is proved that the catalyst shows excellent activity, selectivity and stability. The material exhibits significant stability in a fixed bed reactor under continuous flow conditions, maintaining high activity and gamma-valerolactone selectivity at 3 bar to 5 bar, 80 DEG C to 95 DEG C, and a low H2 / levulinic acid ratio (4 to 17) for an operating time of about 1250 hours. The excellent catalytic performance and stability of the multi-functional Ru catalyst is attributed to the unique surface chemistry of the carbon support that stabilizes Ru nanoparticles over surface nitrogen and oxygen deficiencies and promotes the cyclization of 4-hydroxyvalerate over the acidic phosphate sites and RuOx / RuO2 sites.

The application discloses a gasoline selective hydrodesulfurization catalyst and a preparation method and application thereof. The catalyst comprises a hydrogenation metal component, an auxiliary component and a binder component; the hydrogenation metal component comprises at least one of a group VIB metal and a group VIII metal; the content of the group VIB metal in the form of an oxide is 50.0wt%-65.0wt% based on the weight of the catalyst; the content of the group VIII metal in the form of an oxide is 10.0wt%-25.0wt%; the content of the auxiliary component in the form of an oxide is 1.0wt%-8.0wt%; the content of the binder component in the form of an oxide is 10.0wt%-30.0wt%; and the average pore diameter of the catalyst is 6.0-8.0nm. The catalyst is suitable for FCC gasoline hydrodesulfurization, can meet the requirement of producing clean gasoline with a sulfur content ≯10μg / g under the condition of high space velocity and low hydrogen / oil volume ratio with a small octane loss.

A gasoline fuel composition for a spark-ignition internal combustion engine, the gasoline fuel composition comprising (a) renewable naphtha at a level of 40% to 60% volume / volume, (b) an oxidized hydrocarbon at a level of 15% to 25% volume / volume, and (c) an aromatic hydrocarbon at a level of 25% to 45% volume / volume, 5 wherein the gasoline fuel composition has an RON of 87 or greater. Although the low octane number of renewable naphtha typically strictly limits its blendability in gasoline to a low level, the fuel composition of the invention allows the use of renewable naphtha at significant levels while maintaining a good octane rating for the entire composition.

The present application belongs to the field of gasoline additive, and particularly relates to an environment-friendly gasoline antiknock agent and a preparation method thereof. The antiknock agent comprises two newly designed modified compounds: 3,5-di-tert-butyl phenyl carborane carboxylate and 2-(dicyclohexyl phosphino)-1,2-oxaborinin-4-carboxylic acid iso-octyl ester. In the preparation, a cosolvent is first added into a reactor, and then the two modified compounds, polyisobutylene amine, isobutyl acetate and dimethyl malonate are sequentially added under an inert atmosphere. After mixing by continuous stirring, the temperature is raised, an antioxidant is added, and then stirring is continued. Finally, the product is obtained by cooling and filtering. The two modified compounds are prepared by condensation reaction of carborane carboxylic acid and steric phenol, esterification of oxaborinin carboxylic acid and iso-octanol, and then phosphination reaction. The antiknock agent does not contain metal elements, has biodegradable characteristics, can significantly improve the octane number of gasoline and reduce engine deposits and harmful gas emissions, and meets the green environmental protection requirements.