517 results about "Oxygen compound" patented technology

Provided is a laminate capable of electrolyzing an oxygen compound gas represented by CO2 with high conversion efficiency and suppressing deterioration in electrolytic performance. In this laminate having a structure in which an electrolyte layer is sandwiched between an anode catalyst layer and a cathode catalyst layer, a perovskite oxide and CuFe2O4 are contained in the cathode catalyst layer, and the content of CuFe2O4 in the cathode catalyst layer is at least 10 mass%.

The invention discloses a method for recovering bisphenol A and cyclic carbonate by coupling polycarbonate with an epoxy compound, and belongs to the technical field of depolymerization and recovery of high polymer materials. The method comprises the following steps: constructing a reaction system comprising bisphenol A polycarbonate, an epoxy compound, Lewis acid, alkali and ionic liquid; placing the reaction system at the temperature of 70-150 DEG C in an air atmosphere, and carrying out a reaction for more than or equal to 10 min to obtain bisphenol A and cyclic carbonate; wherein the epoxy compound comprises at least one of styrene oxide, 1, 2-epoxypropane, 1, 2-epoxybutane, 1, 2-epoxydodecane, n-butyl glycidyl ether, epoxy propyl phenyl ether, 2-toluene glycidyl ether and 3-(1-naphthyloxy)-1, 2-epoxypropane, and the epoxy compound comprises at least one of styrene oxide, 1, 2-epoxypropane, 1, 2-epoxybutane, 1, 2-epoxydodecane, n-butyl glycidyl ether, epoxy propyl phenyl ether, 2-toluene glycidyl ether and 3-(1-naphthyloxy)-1, 2-epoxypropane; the alkali is inorganic alkali or organic alkali; the method is mild in reaction condition, high in resource utilization efficiency, good in operation safety and high in chemical monomer yield, and has a wide application prospect in the field of waste plastic treatment.

The invention belongs to the technical field of lithium batteries, and particularly relates to a lithium manganate positive electrode material, a preparation method thereof and a lithium battery, and the method comprises the following steps: adding a manganese sulfate solution, a precipitator and a complexing agent into a reaction kettle in a parallel flow manner, reacting under a first preset reaction condition, and introducing a first oxidant while reacting to obtain a mixed solution; concentrating the mixed solution to preset solid content, and adding a curing agent for curing reaction to obtain manganous-manganic oxide slurry; adding a manganese sulfate solution, a precipitant and a complexing agent into the reaction kettle in a parallel flow manner again, reacting with the manganous-manganic oxide slurry under a second preset reaction condition, introducing a second oxidizing agent while reacting to obtain a composite manganese oxide mixed solution, and filtering, washing and drying to obtain a composite manganese oxide; the composite manganese oxide and lithium carbonate are mixed, calcined, crushed and graded to obtain the lithium manganate positive electrode material, so that the electrochemical performance of the lithium manganate positive electrode material is improved.

The invention relates to a preparation method of a cobalt-free single crystal lithium-rich positive electrode material. The preparation method comprises the following steps: preparing a nickel-manganese oxygen-containing compound precursor from manganese salt and nickel salt by using a solid-phase method or a coprecipitation method; mixing the prepared nickel-manganese oxygen-containing compound precursor with a low-melting-point lithium source, pre-sintering and melting the mixture, performing high-energy ball milling, adding a conventional lithium source once or multiple times during ball milling, and calcining the mixture after ball milling to obtain an initial product of the cobalt-free single crystal lithium-rich positive electrode material; and carrying out acid treatment and secondary calcination on the initial product to obtain the cobalt-free single crystal lithium-rich positive electrode material product. The single crystal lithium-rich material with excellent performance can be prepared with high efficiency and low cost, and has excellent electrochemical performance.

The invention discloses a catalyst for catalyzing ethane to prepare ethylene or an oxygen-containing compound as well as a preparation method and application of the catalyst, and belongs to the field of catalysts. On the basis of ERB-1 and MCM-22, a large number of hydroxyl structures are formed through post-treatment of nitric acid or ammonium nitrate; a titanium source and molecular sieve silicon hydroxyl are subjected to a dehydrohalogenation reaction in a titanium halide gas form to form a Ti-O-Si bond, so that titanium successfully enters a molecular sieve framework and is uniformly distributed. Au or Pd is anchored by a framework Ti, Au or Pd is loaded by using a deposition-precipitation method, and the introduced Ti species can provide a better environment for further dispersing Au or Pd by changing isoelectric points on the surface of a molecular sieve carrier, so that the size of Au or Pd nanoparticles is controlled; secondly, due to the high specific surface area of the MWW molecular sieve, the gold precursor can be effectively dispersed, and agglomeration is inhibited; compared with an MWW molecular sieve of pure Si, Au or Pd nanoparticles can be dispersed and anchored by introducing a framework Ti, so that an Au and Pd-based catalyst which is about 2nm in size and good in dispersion is prepared.

Electrical power derived from a renewable energy source is used to perform water electrolysis to produce oxygen and hydrogen. A flue gas and heat are produced from combustion of a fuel using at least a portion of the oxygen generated by electrolysis. A feed stream including hydrocarbon oil is hydroprocessed using the generated heat and at least a portion of the hydrogen generated by electrolysis to produce a product including a saturated hydrocarbon. At least a portion of the flue gas is hydrogenated using at least a portion of the hydrogen generated by electrolysis to produce a second product stream including a hydrocarbon, an oxygenate, or both.

The invention discloses an argillaceous sandstone uranium ore leaching method and device based on a recyclable activation material, and relates to the technical field of uranium ore resource development. The preparation method of the recyclable activated material comprises the following steps: adding WS2 and Fe3O4 into an aqueous solution, uniformly stirring, adding a boron-containing compound, a fluorine-containing precursor aqueous solution and a nitrogen-oxygen-containing compound, uniformly stirring, heating, stirring for reaction, filtering, washing and drying to obtain a precursor; and calcining the precursor in a protective atmosphere to obtain F / O co-doped h-BN / WS2 / Fe3O4 which is used as a recoverable activation material. The obtained recoverable activated material has good catalytic performance, can be widely applied to preparation of a catalyst for leaching uranium from argillaceous sandstone uranium ore, and can generate strong turbulence, secondary circulation and near-wall shear force for high-viscosity ore pulp and efficiently excite the catalytic activity of a piezoelectric material in cooperation with the device provided by the invention.

The invention relates to the technical field of chemistry and chemical engineering, and particularly discloses a production process and a bubbling control method of succinic acid type polycarbonate polyether polyol, an oxygen compound, succinic acid and a DMC catalyst are premixed by adopting a carbon dioxide bubbling mode, and meanwhile, a camera is used for monitoring the mixing distribution state of the premixture in real time; and performing grid granularity local feature extraction on a real-time mixed distribution state image acquired by a camera by using an intelligent industrial control technology, and further performing mixed distribution uniformity evaluation based on semantic difference of each grid granularity local mixed distribution state feature relative to the whole image so as to realize intelligent control on bubbling time. Compared with a traditional production process, the process steps are effectively simplified, the controllability and stability of the premixing effect in the production process are improved, dependence and errors on manual operation are reduced, and the method is suitable for industrial large-scale production.

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Separating the olefin stream (3) in a fractionation unit (4) into at least a C2-olefin-rich stream (5), a C3-olefin-rich stream (6) and a C4+-olefin-rich stream (7); c) Dimerizing at least a portion of ethylene contained in the C2-olefin-rich stream (5) to C4-olefins in a dimerization unit (20), thereby producing a dimerized product stream (21); d) Processing an oligomerization feed (8) comprising at least a portion of the C4+-olefin-rich stream (7) and at least a portion of the dimerized product stream (21) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); e) Hydrogenating at least a portion of the oligomerized olefin stream (10).

The invention discloses a Fischer-Tropsch synthesis light oil self-reaction deep deoxidation method, which comprises the following steps of: introducing a Fischer-Tropsch synthesis light distillate oil raw material into a crude deoxidation reaction tower filled with a catalyst, and generating an oxygen-enriched heavy substance with a distillation range of more than 160 DEG C after a light oxygen-containing compound in the tower is subjected to self-reaction; and introducing a product of the crude deoxidation reaction tower into a heavy-throwing rectifying tower, carrying out heavy-cutting treatment, discharging oxygen-enriched heavy oil from the bottom of the tower, introducing light distillate oil at the top of the tower into a deep deoxidation adsorption tower filled with an adsorbent, and carrying out deep deoxidation to obtain Fischer-Tropsch synthesis light distillate oil of which the oxide concentration is less than 0.1 mu g / g from the bottom of the adsorption tower. According to the method, the three towers are connected in series, so that the deep removal of the oxides in the Fischer-Tropsch synthesis light distillate oil is realized with low energy consumption and low cost.

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Processing an oligomerization feed (8) comprising at least a portion of the olefin stream (3) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); c) Hydrogenating at least a portion of the oligomerized olefin stream (10); wherein a fraction of the oligomerized olefin stream (10) is withdrawn as a recycle stream (40a, 40b) and passed to a steamcracking unit (41) to produce a steamcracking product stream (42), wherein at least a portion of the steamcracking product stream (42) is included in the oligomerization feed (8).

Process and plant for producing a gasoline product from an oxygenate feed stream, the process including the provision of a methanol-to-gasoline reactor in a gasoline synthesis loop. The process and plant may include combination of an overhead stream from a de-ethanizer, e.g. a fractionation column, located downstream the cooling and separation of the raw gasoline produced in the methanol-to-gasoline reactor, in the gasoline synthesis loop.

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Providing an oligomerization feed (8) comprising at least a portion of the olefin stream (3) and at least a portion of an external C4+-olefin stream (30) comprising C4+-olefins; c) Processing the oligomerization feed (8) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); d) Hydrogenating at least a portion of the oligomerized olefin stream (10).

The invention provides a catalyst for synthesizing N-methylaniline and a preparation method thereof, the catalyst comprises an active component, a carrier and an auxiliary agent, the active component comprises oxygen-containing compounds of copper, zinc and chromium, the carrier is gamma-alumina subjected to surface hydroxylation treatment, and the auxiliary agent is a cerium-molybdenum bimetallic alloy. The preparation method comprises the following steps: loading the active component on the hydroxylation carrier through ultrasonic impregnation, drying, further loading the cerium-molybdenum auxiliary agent, and carrying out reduction alloying and roasting activation to form the composite catalyst. The catalyst is a regular cylinder, has the diameter of 4-6mm and the length of 4-6mm, has an optimized pore structure and surface properties, and is suitable for methylation reaction of aniline and methanol. According to the method, the dispersity of active components is improved through modified chromic oxide, the mass transfer efficiency is enhanced through a hydroxylation carrier, the synergistic catalysis effect of cerium-molybdenum alloy is combined, the reaction activity and selectivity are remarkably improved, meanwhile, side reactions are inhibited, the stability is enhanced, and the method can be widely applied to industrial production of N-methylaniline.

The preparation method comprises the following steps that hexagonal boron nitride is subjected to carbon coating treatment through a carbon source, then the carbon source is placed in a vacuum reaction furnace at the temperature of 1500-2000 DEG C to be subjected to a solid-phase reaction, and the carbon source comprises a carbohydrate compound and an oxygen-containing compound; the carbon coating treatment comprises the following steps: (1) mixing a carbohydrate compound and hexagonal boron nitride, carrying out ball milling, adding water into the obtained mixed powder, uniformly dispersing, and then carrying out hydrothermal carbonization to obtain primary carbon-coated boron nitride; and (2) spraying an oxygen-containing compound on the surface of the primary carbon-coated boron nitride obtained in the step (1), cooling, drying, carrying out closed carbonization at 500-1000 DEG C for 3-6 hours, and naturally cooling to obtain secondary carbon-coated boron nitride. According to the method, the carbon source is directly adopted to perform surface amorphous carbon coating on the nanoscale hexagonal boron nitride, so that the boron nitride powder is prevented from being agglomerated, the reaction of the carbon source and the boron nitride can be promoted, and the quality of the boron carbide nano powder is improved.

The invention provides a positive plate, a battery and electronic equipment. The positive plate comprises a positive current collector and a positive active layer positioned on at least one surface of the positive current collector; the positive electrode active layer comprises a first positive electrode active layer and a second positive electrode active layer which are sequentially stacked in a direction far away from the positive electrode current collector; the first positive electrode active layer comprises a first positive electrode active material, and the first positive electrode active material comprises lithium manganese iron phosphate and a lithium oxide compound; the second positive electrode active layer comprises a second positive electrode active material, and the second positive electrode active material comprises a lithium oxide compound and nickel cobalt lithium manganate. When the positive plate is applied to the battery, the battery is not easy to generate gas during high-temperature storage, so that the safety performance of the battery is improved.

The invention provides a secondary battery and an electronic device, the secondary battery comprises an electrode assembly of a winding structure and an electrolyte, the electrode assembly comprises a pole piece, the electrode assembly comprises a straight area and a bending area, a plurality of first protrusions are arranged on the pole piece in the straight area, a plurality of second protrusions are arranged on the pole piece in the bending area, and the first protrusions and the second protrusions are arranged along the thickness direction of the pole piece. The average height of the plurality of first protrusions is H1 [mu] m, the average height of the plurality of second protrusions is H2 [mu] m, 1.5 < = H2 / H1 < = 5, 5 < = H1 < = 40, and the electrolyte contains a sulfur oxide compound. Through the arrangement, the infiltration of the electrolyte on the electrode assembly is improved, the interface of the electrode assembly is improved, and the cycle performance, low-temperature discharge performance and high-temperature storage performance of the secondary battery are improved.

The invention relates to a method for producing renewable fuel, in particular to a method for synthesizing hydrocarbon fuel by catalyzing sulfur-containing biomass derivatives through three metals. The invention discloses a process for converting oxygen-containing compounds derived from sulfur-containing and nitrogen-containing biomass into hydrocarbons through a catalytic technology, and relates to the field of green chemistry and biofuel production. The preparation method comprises the following steps: S1, pretreating raw materials; s2, filling a catalyst; s3, hydrogenation catalytic reaction; s4, sampling and detecting; and S5, separating and purifying a product. The combination of the three metals has a synergistic effect, can bring about optimization of an electronic effect and a geometric effect, can provide higher catalytic activity and selectivity in hydrogenation reaction, and compared with a traditional single-metal or double-metal catalyst, the three-metal catalyst can realize the same or even higher reaction rate and yield at lower temperature and pressure, and can be used for preparing the catalyst. The reaction energy consumption and the equipment requirement are reduced, and the economic benefit and the process feasibility are improved.

Processes and apparatuses for separating carbon monoxide from ethylene. The ethylene may be produced from biobased alcohol. The separation utilizes a fractionation column which produces a carbon monoxide depleted ethylene stream and an overhead stream comprising carbon monoxide and ethylene. The ethylene from the overhead stream may be recovered in an absorption zone with an absorbing liquid. A oxygenate fractionation zone may be utilized to remove oxygenates from the carbon monoxide depleted ethylene stream.

The invention provides an oxygen-containing compound adsorbent and a preparation method thereof. The oxygen-containing compound adsorbent comprises an active component; the active component comprises a first metal-modified modified molecular sieve and a binder attached to the surface of the modified molecular sieve; the binder is modified activated aluminum oxide modified by second metal; metal elements related to the first metal modification and the second metal modification are independently selected from any one or more of transition metal elements, alkaline earth metal elements and rare earth metal elements. The oxygen-containing compound adsorbent has high selectivity and high adsorption capacity on oxygen-containing compounds in C4-C12 Fischer-Tropsch synthetic oil, the content of the oxygen-containing compounds in the Fischer-Tropsch synthetic oil raw material can be reduced to 1 ppm or below, and meanwhile, a raw material is provided for a downstream polyolefin product production process.

The invention discloses a method for preparing formate through carbonate electroreduction and application of the formate. The method comprises the following steps: 1) assembling a three-electrode system by using an electrode loaded with a tin-based oxygen-containing compound as a working electrode, an Ag / AgCl electrode or Hg / HgO electrode as a reference electrode, a platinum electrode as a counter electrode and a carbonate solution as an electrolyte, and filling the electrolyte into a gas diffusion electrochemical reaction tank; and 2) introducing oxygen-containing gas into the gas diffusion electrochemical reaction tank, electrifying to sequentially carry out local reduction of the tin-based oxygen-containing compound, electroreduction of carbonate and regeneration of the tin-based oxygen-containing compound, and circulating in sequence. The method for preparing formate through carbonate electroreduction has the advantages of being easy to operate, simple in equipment, reliable in principle, low in cost, high in stability and the like, and is suitable for large-scale industrial application.

A self-activating photoactive aerosol is presented, comprising an anion-containing mass composition having a mass ratio of nitrate anions and / or nitrogen-oxygen compounds to chlorides ranging from 1 part nitrate anions and / or nitrogen-oxygen compounds to 200 parts chlorides, up to 10 parts nitrate anions and / or nitrogen-oxygen compounds to 1 part chlorides, and the composition has a pH in a range of less than or equal to 3 to greater than or equal to −1. Also disclosed is method and apparatus for producing a self-activating photoactive aerosol.

The invention provides a silicon composite material and a preparation method thereof, a negative pole piece, a battery and an electric device. The silicon composite material comprises a silicon-based material and a flexible material, and the hardness of the flexible material is smaller than that of the silicon-based material. The silicon-based material comprises at least one of monatomic silicon, a silicon-oxygen compound, a silicon-carbon compound, a silicon-nitrogen compound and a silicon alloy. The flexible material is located on at least part of the surface of the silicon-based material. Through cooperation of the flexible material and the silicon-based material, the risk that the current collector is crushed during preparation of the electrode plate can be reduced, the compaction density of the electrode plate is improved, and the energy density of the battery is further improved.

The invention discloses a co-catalytic cracking method for biomass oil and heavy oil, which comprises the following steps: firstly, adding alkaline earth metal salt and a ligand compound into water, mixing, heating to 70 DEG C, reacting at a constant temperature, and filtering to obtain an alkaline earth metal complex; adding an alkaline earth metal complex into the biomass oil, stirring and mixing, reacting the alkaline earth metal complex serving as a deoxidizing agent with phenolic substances in the biomass oil to form a metal-phenol complex, adding an extracting agent after the reaction, uniformly mixing, dissolving the metal-phenol complex into the extracting agent, and layering the solution; and uniformly mixing the treated layered solution with heavy oil, and carrying out catalytic cracking under the action of a catalyst. The alkaline earth metal complex not only can remove oxygen-containing compounds in the biomass oil, but also can effectively resist heavy metal pollution of heavy oil and strengthen the activity of the catalyst, so that the light oil yield is remarkably increased, the proportion of coke to dry gas is reduced, the formation of coke is reduced, and the economical efficiency and environmental friendliness of the catalytic cracking process are greatly optimized.

The invention relates to a low-temperature hydrodeoxygenation catalyst as well as a preparation method and application thereof. The catalyst provided by the invention is suitable for low-temperature removal of alcohols in Fischer-Tropsch synthetic oil, and is also suitable for low-temperature removal of alcohols in other hydrocarbons containing alcohols. The catalyst provided by the invention adopts a phosphorus modified alumina carrier, adopts nickel as a hydrogenation active component, and adopts lanthanum, cerium, cobalt and / or zinc (especially cerium) as a cocatalyst component, and a component loading process adopts a step-by-step impregnation method to load the cocatalyst component and the hydrogenation active component on the carrier in sequence. The catalyst provided by the invention solves the technical problem of sufficient removal of oxygen-containing compounds at low temperature.

The invention relates to the field of oxygen-containing compound adsorption and removal, and discloses a molecular sieve adsorbent as well as a preparation method and application thereof. The method comprises the following steps: mixing a silicon source and an aluminum source, carrying out preliminary crystallization, aging and crystallizing in a gel-like mother solution containing the silicon source and the aluminum source to obtain an FAU molecular sieve seed crystal, and carrying out mixed crystallization on the FAU molecular sieve seed crystal, various molecular sieves and the aluminum source, forming and roasting the obtained molecular sieve mixed crystal, the sodium metaaluminate modified carbon nanotube, an aluminum source and an auxiliary component; and finally, carrying out surface modification by adopting anhydrous amino acid ionic liquid. The molecular sieve adsorbent has a hierarchical pore structure composed of abundant micropores and mesopores and a relatively high specific surface area, the adsorption performance is improved through modification of the amino acid ionic liquid and addition of the modified carbon nanotubes, and when the molecular sieve adsorbent is used for adsorbing and removing oxygen-containing compounds in olefins, the molecular sieve adsorbent shows a relatively good removal rate and a relatively long adsorption period, and the molecular sieve adsorbent has relatively good application prospects. The production cost can be effectively reduced, and the method has high production and application value.

A silicon composite material and a preparation method, a negative electrode plate, a battery, and an electrical apparatus. The silicon composite material comprises a silicon-based material and a flexible material, wherein the hardness of the flexible material is less than the hardness of the silicon-based material. The silicon-based material comprises at least one of elemental silicon, a silicon-oxygen compound, a silicon-carbon composite, a silicon-nitrogen composite, and a silicon alloy. The flexible material is located on at least part of the surface of the silicon-based material. By means of the combination of the flexible material and the silicon-based material, the risk of a current collector being crushed during the preparation of an electrode plate can be reduced, and the compacted density of the electrode plate can be improved, thus increasing the energy density of a battery.

The invention discloses a closed all-solid-state lithium-oxygen battery, an oxidation composite positive electrode and a preparation method, the closed all-solid-state lithium-oxygen battery comprises an oxygen-containing compound and a catalyst, the oxygen-containing compound comprises one or more of Li2O, Li2O2, KO2, Li2CO3, Li3PO4 and LiNO3, and the catalyst comprises a transition metal oxide, a noble metal and an alloy thereof, a carbon-based material, a metal organic framework and a derivative thereof, a monatomic catalyst and a composite material. The catalyst comprises one or more of oxygen-containing compounds and one or more of non-metal catalysts, the mass ratio of the oxygen-containing compounds is 50%-80%, and the mass ratio of the catalyst is 20%-50%. According to the invention, the oxidation-reduction reaction of oxygen is immobilized, oxygen is not generated, and the problems of complex structure and low actual energy density of an open type lithium air battery are solved; the solid electrolyte is used for replacing electrolyte, so that the potential safety hazard of electrolyte permeation is solved, the electrochemical performance is improved, and a new path is provided for the ultrahigh-specific-energy all-solid-state battery.

The present invention relates to a process for producing a jet fuel composition (12), the process comprising: a) Processing an oxygenate stream (1) in an Oxygenate-to-Olefin (OtO) unit (2) to produce an olefin stream (3); b) Separating the olefin stream (3) in a fractionation unit (4) into at least a C2-olefin-rich stream (5), a C3-olefin-rich stream (6) and a C4+-olefin-rich stream (7); c) Processing an oligomerization feed comprising a first oligomerization feed stream (8a) containing at least a portion of the C3-olefin-rich stream (6) and a second oligomerization feed stream (8b) containing at least a portion of the C4+-olefin-rich stream (7) in an oligomerization unit (9) to produce an oligomerized olefin stream (10); d) Hydrogenating at least a portion of the oligomerized olefin stream (10); wherein the oligomerization unit (9) comprises at least a first reaction zone (9a), and a second reaction zone (9b) downstream of the first reaction zone (9a); wherein the first oligomerization feed stream (8a) is introduced into the oligomerization unit (9) at a position upstream of the first reaction zone (9a), and the second oligomerization feed stream (8b) is introduced into the oligomerization unit (9) at a position downstream of the first reaction zone (9a) and upstream of the second reaction zone (9b).

To provide an active material for use in the manufacture of a positive electrode having low resistance.SOLUTION: An active material includes a core particle and a coating portion disposed on the surface of the core particle. The core particle contains a first oxide containing elemental sodium (Na). The coating portion contains a second oxygen-containing compound containing elemental A. The elemental A is at least one selected from elemental sulfur (S), elemental phosphorus (P), elemental niobium (Nb), elemental tantalum (Ta), and elemental zirconium (Zr).SELECTED DRAWING: None