422 results about "Octane" patented technology

A process and system for upgrading an organic feedstock including providing an organic feedstock and water mixture, feeding the mixture into a high-rate, hydrothermal reactor, wherein the mixture is rapidly heated, subjected to heat, pressure, and turbulent flow, maintaining the heat and pressure of the mixture for a residence time of less than three minutes to cause the organic components of the mixture to undergo conversion reactions resulting in increased yields of distillate fuels, higher-quality kerosene and diesel fuels, and the formation of high octane naphtha compounds. Hydrocarbon products are cooled at a rate sufficient to inhibit additional reaction and recover of process heat, and depressurizing the hydrocarbon products, and separating the hydrocarbon products for further processing. The process and system can include devices to convert olefinic hydrocarbons into paraffinic hydrocarbons and convert olefinic byproduct gas to additional high-octane naphtha and / or heavier hydrocarbons by one of hydrogenation, alkylation, or oligomerization.

Provided is an adsorbent for removing perfluoroalkyl and polyfluoroalkyl substances from an aqueous solution, including perfluoro-octanoic acid (PFOA), perfluoro-octane sulfonate (PFOS), shorter-chained perfluoroalkyl and polyfluoroalkyl substances, and combinations of foregoing. The adsorbent includes iron oxide nanocrystals, wherein the absorbent has an adsorption capacity for PFOA of at least 5000 mg / g or an adsorption capacity for PFOS of at least 25,000 mg / g. Also provided are methods of removing contaminants from an aqueous solution, wherein the contaminants include perfluoroalkyl and polyfluoroalkyl substances.

The invention discloses an additive for improving the octane number of propylene and gasoline as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation and application. The additive for improving the octane number of propylene and gasoline comprises 20-65% of a regular ZSM-5 molecular sieve, 0-25% of other molecular sieves, 3-30% of P2O5, 3-18% of a binder and the balance of clay, wherein the total percentage is 100%. The specific surface area of the regular ZSM-5 molecular sieve is 300-510 m < 2 > / g, the micropore volume is 0.20-0.42 mL / g, the mesopore volume is 0.10-0.27 mL / g, the grain size is 30-300 nm, and the silica-alumina ratio is 20-180. The regular ZSM-5 molecular sieve prepared without the template agent is high in yield, high in crystallinity, excellent in acid property and open in pore structure. The additive for improving the octane number of the propylene and the gasoline contains a regular ZSM-5 molecular sieve and is subjected to phosphorus compound modification, so that the catalytic activity and the shape-selective cracking capability are synchronously improved, the cracking capability of low-octane number alkane components is improved, the propylene yield and the octane number of the gasoline are greatly improved, and the manufacturing cost is effectively reduced.

The invention belongs to the field of catalyst preparation, and relates to a preparation method and application of a novel hydrocarbon isomerization catalyst. The preparation method comprises the following steps: firstly, preparing a metal precursor, wherein the metal precursor can be prepared by loading a metal species in a mesoporous silica channel or interacting the metal species with an anionic polymer; then adding the precursor into an SAPO-11 synthesis system containing a phosphorus source, an aluminum source, a silicon source and a structure-directing agent, and carrying out hydrothermal or dry glue water vapor assisted crystallization; and finally, washing, drying and roasting the crystallized product to obtain the hierarchical porous SAPO-11-based metal catalyst with highly dispersed metal species. The method provided by the invention successfully realizes simultaneous modulation of the dispersity of metal species and the pore structure property of SAPO-11, and effectively improves the activity and isomer selectivity of the catalyst in a hydrocarbon skeletal isomerization reaction; the catalyst can be used for improving the octane number of gasoline, the condensation point of diesel oil, the viscosity-temperature performance of lubricant base oil, the freezing point of biological aviation kerosene and the like.

The invention relates to a method for producing high-octane gasoline through hydrocarbon catalytic cracking and a reaction system thereof, and the method comprises the following steps: in a constant linear velocity fluidized bed reactor, diesel oil and other light petroleum hydrocarbons are contacted with a high silica-alumina ratio catalytic cracking catalyst, and self-heat balance is maintained through regeneration flue gas circulation to produce liquefied gas and high-octane gasoline. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the conversion rate of the diesel oil is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the processing benefit of crude oil is also improved.

The invention relates to a starch type impregnating compound and a preparation method and application thereof, the impregnating compound comprises an active component and water, the active component comprises the following raw materials in parts by weight: 45-65 parts of a starch-based film-forming agent, 5-10 parts of a plasticizer, 15-20 parts of a lubricant, 1-2.5 parts of an emulsifier, 5-8 parts of a coupling agent, 1-2.5 parts of a softening agent, 0.5-1.5 parts of a preservative and 0.02-0.05 part of a defoaming agent; wherein the starch-based film-forming agent is a composition of potato oxidized hydroxypropyl starch, starch octenyl succinate and modified starch in a mass ratio of 1: (1.1-1.5): (0.5-0.8); the lubricant is a composition of carnauba wax and hydrogenated soybean oil. The impregnating compound disclosed by the invention can effectively improve the wear resistance of low-twist yarns, reduce hairiness and enhance bundling property and weaving performance, and can be used for preparing glass fiber spinning spun yarns.

The invention discloses preparation of a molecular sieve supported metal catalyst and application of the molecular sieve supported metal catalyst in catalyzing coupling of carbon dioxide and high-carbon alkane to prepare high-octane gasoline. The preparation method of the catalyst comprises the following steps: fully drying a Beta molecular sieve, a ZSM-5 molecular sieve and a Y molecular sieve to obtain a catalyst carrier; and then taking metal salt as a precursor, and carrying out equivalent-volume impregnation, drying, roasting and reduction to obtain the heterogeneous catalyst. The series of catalysts show good catalytic activity and selectivity in preparation of high-octane gasoline through coupling conversion of carbon dioxide and high-carbon alkane, gasoline products can be obtained with high yield, the carbon dioxide atmosphere can promote generation of high-octane component aromatic hydrocarbon, and the octane number of gasoline is effectively increased. The catalyst has the advantages of good catalytic performance, simple preparation method, high stability, good selectivity, low cost, strong practicability and reusability, and opens up a new path for preparing high-octane gasoline.

The invention provides a preparation method of 4-oxa-7-azaspiro [2.5] octane and salt thereof, which is simple and convenient to operate, mild in condition, lower in equipment requirement, easily available in raw materials and higher in yield, and is suitable for industrial application. # imgabs0 #

Described herein are crystalline forms of the MAGL inhibitor 1,1,1,3,3,3-Hexafluoropropan-2-yl(S)-1-(pyridazin-3-ylcarbamoyl)-6-azaspiro[2.5]octane-6-carboxylate.

The invention belongs to the technical field of chemical synthesis, and particularly relates to a preparation method of perfluorohexyl octane. The preparation method comprises the following steps: by taking perfluorohexyl ethyl iodide as a raw material, firstly carrying out Grignard reagent exchange with a reagent A, and then carrying out nucleophilic addition reaction with n-hexanal to obtain a compound III; carrying out esterification and substitution on the compound III to prepare a compound V, or carrying out an Apple substitution reaction to prepare the compound V; and carrying out reduction reaction on the compound V, rectifying and purifying to obtain a target product. The reagent A comprises an isopropyl magnesium chloride tetrahydrofuran solution, a methyl magnesium chloride tetrahydrofuran solution, a methyl magnesium bromide tetrahydrofuran solution, an ethyl magnesium chloride tetrahydrofuran solution, an ethyl magnesium bromide tetrahydrofuran solution and / or a phenyl magnesium bromide tetrahydrofuran solution. According to the method, the perfluorohexyl ethyl iodide and the n-hexanal are used as raw materials to prepare the perfluorohexyl octane, isomer impurities are fundamentally avoided, and the method has the advantages that purification is easy, the yield is high, the product purity is high, and industrial production is facilitated.

To provide a decorative sheet having higher weather resistance by preventing occurrence of delamination or the like.SOLUTION: There is provided a decorative sheet 10 obtained by laminating a base material layer 1, a pattern layer 2, an adhesive layer 3, a transparent resin layer 4, and a surface protective layer 5 in this order, wherein the adhesive layer 3 contains an adhesive resin and a curing agent and further contains an ultraviolet absorber and a light stabilizer, the ultraviolet absorber contains a reaction product of 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-hydroxyphenyl and [(C10-C16 alkyloxy)methyl]oxirane, the light stabilizer contains a reaction product of a decanedioic acid bis(2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl) ester, 1,1-dimethylethyl hydroperoxide and octane and the amounts added of these are 0.5 pt.mass or more and 5 pts.mass or less, respectively based on 100 pts.mass of the adhesive resin.SELECTED DRAWING: Figure 1

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 relates to the field of electrolytes for aluminum electrolytic capacitors, in particular to an electrolyte solute and a preparation method thereof, an electrolyte and an aluminum electrolytic capacitor. The electrolyte solute comprises a branched chain polycarboxylic acid ammonium mixture, and the branched chain polycarboxylic acid ammonium mixture comprises 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, the additive is prepared from ammonium 5, 7 '-(octadecane-9, 10-diethyl) dioctyl pentadecanedioic acid, ammonium 8-(5-carboxypentyl)-7-octane hexadecanedioic acid, ammonium 10, 11-dioctyl eicosanedioic acid, ammonium 8-hydroxy-7-octane hexadecanedioic acid, ammonium (E)-7-hexadecane-8-octane enedioic acid and ammonium dodecanedioic acid. The electrolyte solute can obviously improve the conductivity and the sparking voltage of the electrolyte, and the high and low temperature resistance, the voltage resistance, the safety and stability performance and the like of the capacitor. Meanwhile, the preparation method of the solute is simple, high in product yield, low in cost, safe and environment-friendly.

A gasoline fuel composition for a spark ignition internal combustion engine comprising (a) renewable naphtha at a level from 40 to 60% v / v, (b) oxygenated hydrocarbon at a level from 15% v / v to 25% v / v, and (c) aromatic hydrocarbon at a level from 25% v / v to 45% v / v, 5 wherein the gasoline fuel composition has a RON of 87 or greater. While the low octane number of renewable naphtha would normally severely restrict its blendability in gasoline to low levels, the fuel composition of the 10 present invention allows the use of renewable naphtha in significant levels while maintaining a good octane rating for the overall composition.

The invention discloses a high-silicon EMT molecular sieve as well as a synthesis method and application thereof, and belongs to the technical field of molecular sieves. The synthesis method of the EMT molecular sieve comprises the following steps: a) mixing an aluminum source A1, a silicon source Si1, an alkali metal source M1, an organic template agent R1 and water to obtain a raw material I, and aging the raw material I to obtain a guiding agent; b) mixing an aluminum source A2, a silicon source Si2, an alkali metal source M2, an organic template agent R2 and water to obtain a raw material II, namely initial gel; and c) adding the guiding agent into the initial gel, uniformly stirring, and crystallizing in a sealed reaction kettle to obtain the high-silicon EMT molecular sieve with the EMT topological structure. The EMT molecular sieve provided by the invention has a silicon-aluminum oxide ratio of 7-30, high crystallinity and purity, and good hydrothermal / thermal stability, can be used for catalytic reactions such as production of high-octane gasoline by alkylation of isobutane / 2-butene, and has important significance in actual chemical production.

The invention belongs to the technical field of medicine analysis, and particularly relates to a method for detecting an impurity A, an impurity B, an impurity C and an impurity D. High performance liquid chromatography is adopted for detection, and chromatographic conditions are as follows: a Titank Phenyl-Hexyl chromatographic column is adopted as a chromatographic column; acetonitrile and a buffer solution with the ratio of 4: 96 v / v are used as a mobile phase for isocratic elution, and every 1 L of the buffer solution contains 8.00 g of sodium 1-octanesulfonate, 37.00 mg of EDTA-disodium, 10 mL of perchloric acid and 2 mL of phosphoric acid; the flow velocity of the mobile phase is 0.6-1.0 mL / min, the column temperature is 15-25 DEG C, the sample size is 5-15 mL, an ultraviolet detector is used for detection, and the detection wavelength is 210-220 nm; the method can detect impurities A, B, C and D in the zoledronic acid bulk drug, and can be used for quality control of the zoledronic acid bulk drug.

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.

The utility model belongs to the field of high-octane gasoline production, and particularly relates to a device for producing high-octane gasoline from topped oil through non-hydroisomerization. The raw material conveying pump is connected with the C4 feeding device through a valve and is used for conveying the raw materials; the raw material / reaction product heat exchanger is connected with the raw material conveying pump and is used for carrying out heat exchange on the raw materials; according to the utility model, the topped oil of the reforming device is used as a raw material, a second-section feeding process and a third-section feeding process are added in the reactor, and a circulating gas process from the outlet of the compressor to the reaction system is added, so that the raw material / reaction product is obtained. Under the non-hydrogen condition, the reaction depths of alkane cracking, selective hydrogenation, isomerization and the like of the low-octane-number topped oil are improved on the basis of the catalyst, the low-octane-number topped oil is converted into the high-octane-number gasoline blending component, the octane number of the produced gasoline can reach 89-90, the saturated vapor pressure is 65-80 kPa, the improvement cost is low, and the production operation is simple.

The present invention relates to a method for preparing 9,9-dioctyl-2-fluorene boric acid, industrial 2-bromofluorene, sodium tert-butoxide, n-hexane, 1-bromooctane and activating agent are added to a reaction bottle, reacted at room temperature for 1-3 hours, and then n-hexane, 1-bromooctane and activating agent are extracted in turn by vacuum distillation, and an equal amount of n-hexane solution is added again; the temperature is cooled to 40-80°C, n-butyl lithium is added, and stirred for 0.5-1 hour; trimethyl borate is added again, and stirred for 1-2 hours; after completion of the reaction, the temperature is controlled to be lower than 20-0°C, hydrochloric acid solution is dripped, reacted for 1-4 hours, and then warmed to 0-20°C for reaction for 3-6 hours; liquid separation, organic layer is washed with saturated salt water, and water layer is extracted 3 times with n-hexane; after the organic layers are mixed, the solvent is recovered by vacuum distillation; the filter cake is washed with deionized water to pH=6-7, and the finished product is obtained after drying. The present invention meets the production requirements of economic efficiency and high yield.

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 present invention relates to a method for preparing low-carbon olefin raw materials by selective desulfurization and denitrogenation of diesel, wherein the diesel raw material oil is contacted with a selectively regulated hydrofining catalyst for hydrofining reaction, and the obtained refined oil is subjected to solvent extraction to obtain extracted oil rich in aromatics and raffinate oil rich in alkanes; wherein the raffinate oil is used as a high-quality raw material for steam cracking to produce ethylene, and the extracted oil can be directly used as a raw material for hydrocracking or catalytic cracking to produce high-octane gasoline or BTX light components. The present invention optimizes the raw materials and process structure of the existing device, not only fully utilizes various raw material resources, but also effectively solves the problem of diesel outlet and ethylene material shortage.

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 invention discloses a gasoline selective hydrodesulfurization catalyst as well as a preparation method and application thereof. The catalyst comprises a hydrogenation metal component, an auxiliary agent component and a binder component, the hydrogenation metal component comprises at least one of a group VIB metal and a group VIII metal; on the basis of the weight of the catalyst, the content of the VIB group metal in terms of oxide is 50.0-65.0 wt%; the content of the group VIII metal in terms of oxide is 10.0 wt%-25.0 wt%; the content of the auxiliary agent component is 1.0 wt%-8.0 wt% in terms of oxide; the content of the binder component in terms of oxide is 10.0 wt%-30.0 wt%; the average pore diameter of the catalyst is 6.0 to 8.0 nm. The catalyst is suitable for FCC gasoline hydrodesulfurization, and can meet the production of clean gasoline with the sulfur content of not more than 10 mu g / g under the conditions of small octane number loss, high space velocity and low hydrogen-oil volume ratio.

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.

To provide a removal material for efficiently capturing astatine-211 dispersed indoors during the production or utilization of pharmaceuticals containing astatine-211, thereby purifying the room.SOLUTION: A removal material for radioactive material astatine-211 comprises at least one chemical substance selected from the group consisting of 1,4-diazabicyclo[2.2.2]octane and alkali metal iodides, carried onto a porous material predominantly composed of activated carbon. Preferably, the quantity of the chemical substance carried is 0.3×10-3-3.0×10-3 mol per gram of activated carbon. Preferably, the porous material is fibrous activated carbon with a fiber diameter of 10-25 μm, and the specific surface area of the fibrous activated carbon is 1000-2000 m2 / g as measured by the BET method.SELECTED DRAWING: Figure 2

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.