45 results about "Oxygen compound" patented technology

The utility model discloses a small nitrogen oxygen compound detection device of gas detection technical field, including mobile detection box, the inside one side of mobile detection box is installed with detection chamber, the outside wall center position of one side of detection chamber is installed with motor, and its structure is reasonable, the utility model discloses the mounting bracket on two groups of purification filter board is by the guiding seat with the sliding mode and is connected in the guiding groove on fixed base, and the mounting plate on fixed base is installed with the exhaust fan of corresponding installation up and down, according to the breather hole on detection chamber, make its air inlet on mobile detection box access to small nitrogen oxygen compound, and the exhaust fan extracts inward, to a certain amount, and the motor controls the baffle and seals the breather hole, reaches the partial small nitrogen oxygen compound existence detection chamber, and can be detected and handled by gas detection sensor, after the small nitrogen oxygen compound of detection is finished, and can be discharged by the exhaust fan to the air outlet.

The application provides a method for improving the yield of oxygen-containing compounds in low-rank coal-derived soluble matters, and belongs to the technical field of low-rank coal pretreatment, and comprises the following steps: first, performing ozone oxidation pretreatment on low-rank coal to obtain modified low-rank coal; using cobalt acetate, copper acetate and iron acetylacetonate as a cobalt source, a copper source and an iron source respectively, using hydrazine hydrate as a strong reducing agent, and using a one-pot hydrothermal method to obtain magnetic Co-CuFe2O4 nanospheres; and using the prepared Co-CuFe2O4 nanosphere catalyst to perform catalytic ethanolysis reaction on the low-rank coal subjected to ozone oxidation pretreatment. In the application, appropriate ozone oxidation pretreatment can effectively improve the activity of the low-rank coal, and when the magnetic Co-CuFe2O4 nanospheres are applied to catalytic ethanolysis reaction of the low-rank coal subjected to ozone oxidation pretreatment and catalytic ethanolysis reaction of low-rank coal-related model compounds, the magnetic Co-CuFe2O4 nanospheres all exhibit excellent catalytic activity, higher-yield soluble components can be obtained, the yield of oxygen-containing compounds in the derived soluble matters is improved, and efficient and high-value utilization of the low-rank coal is realized.

The present application provides a catalyst for preparing oxygen-containing compounds by olefin hydroformylation reaction, and a preparation method and use thereof, the catalyst is Fe x Co y M, the catalyst contains 0.1-15wt% M, 85-99.9wt% Fe and Co, the atomic ratio of x to y is 0.1-10, and M is a metal element. When the catalyst is used for preparing oxygen-containing compounds by olefin hydroformylation reaction, the conversion rate of olefin can reach 93-99.9%, and the selectivity of oxygen-containing compounds can reach 89-98.8%; and the catalyst is in a solid state during the reaction, which is easy to realize solid-liquid separation with the product, and also avoids the loss of the catalyst during the separation process.

The present invention relates to AB2O4 type mixed metal oxide catalyst system having spinel / inverse spinel structure with support. The present invention also relates to the process for preparation of mixed metal oxide catalyst system. More particularly, the present invention relates to a process for the partial oxidation of alkanes to value added products and corresponding oxygenates by using said AB2O4 type mixed metal oxide catalyst with support(s).

This invention relates to an atomic-level manufacturing method and apparatus for two-dimensional metal oxide nanosheets based on controllable micro-explosion, belonging to the field of functional nanomaterials and atomic-level precision manufacturing technology. This invention uses transition metal energetic complexes and energetic oxygen compounds as metal-oxygen integrated precursors. Under the constraint of an array-type nano-confined microcavity, controllable micro-explosions are synchronously triggered by nanosecond lasers to achieve nanosecond-level stoichiometric precision in the directional self-assembly of two-dimensional metal oxide nanosheets. The preparation cycle of this invention is reduced to less than 10 minutes, and the overall energy consumption is less than 1% of that of the traditional hydrothermal method. The product has excellent specific surface area, photocatalytic and cycling performance, and is 100% compatible with existing mass production lines. It is suitable for large-scale manufacturing in fields such as photocatalysis, energy storage, gas sensors, and environmental governance.

A problem arises when purifying a triglyceridic and / or free fatty acid feedstock for renewable hydrocarbon production, where such feedstock comprises C2-C6 aliphatic oxygenates, as they are transferred to the aqueous wastewater during the course of the purification, and which contributes to the degree of pollution of the aqueous wastewater measured as the chemical oxygen demand. The aqueous wastewater is extracted with the purified feedstock for renewable hydrocarbon production, which reduces the chemical oxygen demand of the aqueous wastewater by extracting the C2-C6 aliphatic oxygenates therefrom, while maintaining the purified feedstock for renewable hydrocarbon production in a quality that can be directly processed in a hydrotreating step, where the extracted C2-C6 aliphatic oxygenates are also converted to valuable hydrocarbons.

The present application relates to a kind of composite silicon carbon negative electrode material and its preparation method and application, composite silicon carbon negative electrode material includes: lithium-containing silicon carbon composite material, composite coating layer being coated in the outer surface of lithium-containing silicon carbon composite material, and carbon coating layer being coated in the outer surface of composite coating layer;Lithium-containing silicon carbon composite material includes: porous carbon, and nano silicon particles and lithium silicon alloy attached in the pore of porous carbon;Lithium silicon alloy's chemical general formula is Li x Si, wherein, 0 < x ≤ 4.4;Composite coating layer includes: silicon oxide compound and lithium-containing oxygen compound;Silicon oxide compound's chemical general formula is SiO z , wherein, 0 < z ≤ 2;Lithium-containing oxygen compound includes: one or more of lithium silicate, lithium oxide, lithium hydroxide, lithium carbonate;The composite silicon carbon negative electrode material provided by the embodiment of the present application is used in lithium ion battery, can improve the first coulomb efficiency of battery, inhibit the volume expansion of pole piece, improve the cycle life of battery.

This method for producing an oxygen compound comprises a step for obtaining a gas containing an oxygen compound from a raw material gas containing carbon oxide, hydrogen, and water, in the presence of a catalyst (A) containing rhodium, wherein the content of the water in the raw material gas is 0.03-2.0 vol%, and the content of the rhodium in the catalyst (A) is 0.6-2.9 mass%. Moreover, in this method for producing an oxygen compound, the raw material gas further contains at least one selected from among methanol, ethanol, and acetaldehyde, and the total content of the methanol, the ethanol, and the acetaldehyde in the raw material gas is 0.05-1.0 vol%.

A process for upgrading a bio-oil stream is disclosed. The process includes reacting the bio-oil stream with hydrogen in the presence of a catalyst and a stabilizing oil in a reactor to produce an upgraded bio-oil stream. A recycle oil stream is withdrawn from the upgraded bio-oil stream. The recycle oil stream is recycled to the reactor to provide the stabilizing oil. The contents of the reactor can be measured using various techniques and characterized based on the concentration of one or more functional groups, such as oxygenates. In addition, a fuel oil stream can be withdrawn from the upgraded bio-oil stream.

The application belongs to the technical field of lithium ion battery materials, and particularly relates to a modified lithium manganate positive electrode material and a preparation method and application thereof; the method takes spinel lithium manganate as a matrix, uniformly loads tellurium-doped lithium pyrovanadate and defect type niobium tungsten oxygen compound on the surface of lithium manganate particles through wet mixing, removes organic dispersants through stepwise heating and holding in an air atmosphere after drying, then switches to inert atmosphere to continue heating and sintering, and finally cools down under the protection of inert atmosphere to obtain a modified product. The tellurium-doped lithium pyrovanadate is prepared through a peroxovanadic acid complex sol-gel method, and the defect type niobium tungsten oxygen compound is prepared through an argon-hydrogen mixed gas reduction method and is completely isolated from air. The application forms a composite layer of coating and grain boundary modification on the surface of lithium manganate through the synergistic effect of the two modified compounds, effectively inhibits manganese dissolution and lattice distortion, and at the same time, the oxygen vacancy structure is preserved under the protection of inert atmosphere, so that the cycle stability and electrochemical performance of the material are significantly improved.

The utility model discloses a two-stage extraction and secondary regeneration alpha olefin extraction device belongs to the technical field of extraction equipment. The device includes sequentially communicating primary extraction tower, primary extraction phase buffer tank, primary regeneration tower, secondary extraction tower, secondary extraction phase buffer tank, secondary regeneration tower, qualified oil product buffer tank, condensation recovery system and precision filter etc. component. Through two-stage extraction and secondary regeneration design, combine vacuum distillation (-0.08~0.095MPa, 150~180 DEG C) and precision filtration (0.1 micrometre ceramic membrane, 0.25 micrometre polytetrafluoroethylene filter core), realized oxygen compound removal rate >99%, alpha-olefin yield is 98%, and product purity reaches 99.5% or more. The device adopts double closed loop circulating system, and extraction agent recycling utilization rate >95%, and energy consumption reduces 40%, and waste liquid toxicity reduces 90%, solves the problem such as low efficiency, high energy consumption, and incomplete regeneration in traditional process, is applicable to the high -efficient purification of alpha-olefin in coal -based fischer -tropsch synthesis oil.

The disclosure relates to a method of manufacturing an organoboron salt, the method comprising reacting an ionic boron-oxygen compound, wherein the ionic boron-oxygen compound is one or more selected from the group consisting of borax or a hydrate thereof, with a base and one or more compounds according to formula (II), R-OH, wherein R is selected from the group consisting of C(1-12)alkyl and C(6-10)aryl, each optionally substituted with one or more halogen, hydroxyl and / or C(1-4)alkoxy, in a total amount of at least 4.0 moles of the compound according to formula (II) per mole of boron in the ionic boron-oxygen compound, at a temperature of at least 20 °C, wherein water is removed during the reacting, thereby forming the organoboron salt, wherein the organoboron salt is a compound according to formula (I), X-[B-(OR)4]n, wherein each R is independently selected from the group consisting of C(1-12)alkyl and C(6-10)aryl, each optionally substituted with one or more halogen, hydroxyl and / or C(1-4)alkoxy, and wherein X is a monovalent cation and n is 1, X is a divalent cation and n is 2, or X is a trivalent cation and n is 3.

A process for producing oxygenates from syngas is provided. The process involves mixing syngas with hydrogen sulfide, forming a syngas mixture; contacting the syngas mixture with a catalyst composition in a reactor to obtain a first product stream; splitting the first product stream into a non-condensable material stream and a condensable material stream; directing the non-condensable material stream back into the reactor; and directing the condensable material stream to a distillation column, producing a product stream having a high percentage of ethanol. The catalyst composition includes rhodium, lanthanum, gallium, vanadium and a support.

Provided are: a perovskite solar cell excellent in durability; a liquid composition suitably used for forming a photoelectric conversion layer in manufacturing of the perovskite solar cell; and a method for manufacturing the perovskite solar cell using the liquid composition. A perovskite solar cell (1) comprises, in the given order, the following: a first electrode layer (20), a hole transport layer (30), a photoelectric conversion layer (40), an electron transport layer (50), and a second electrode layer (60). Contained between the first electrode layer (20) and the second electrode layer (60) is: at least one compound selected from the group consisting of ascorbic acid compounds, phenolic compounds, and unsaturated compounds; at least one oxygen atom-containing compound selected from succinic acid compounds and phosphorus compounds; or diphosphorus pentoxide.

The application discloses a non-condensable gas treatment device and method, and relates to the technical field of sewage stripping separation. The device comprises: a stripping unit, which is used for separating sewage to obtain crude steam and purified water; a reflux tank, which is connected with the stripping unit and is used for separating the crude steam to obtain reflux sewage and non-condensable gas; a combustion unit, which is connected with the reflux tank and is used for burning the non-condensable gas separated by the reflux tank to obtain high-temperature harmless waste gas; and a steam unit, which is connected with the combustion unit and is used for generating medium-pressure steam through the high-temperature harmless waste gas. The non-condensable gas of the sewage stripping tower and the regenerated flue gas are jointly introduced into a burning furnace for high-temperature burning, so that oxygen-containing compounds such as acetone and dimethyl ether are completely decomposed into harmless substances; and the high-temperature harmless waste gas generated by burning is transported to the steam unit, the heat energy of the high-temperature harmless waste gas is used to generate medium-pressure steam, and the medium-pressure steam is connected to a network, so that resource utilization is realized.

This invention provides a Rh / MnO nanocatalyst, its preparation method, and its application, comprising the following steps: A) adding a manganese source solution dropwise to a ligand solution to obtain a mixed solution; the ligand solution includes a complexing agent and a polyol; B) drying and calcining the mixed solution to obtain manganese oxide; C) mixing the manganese oxide and a rhodium source in water to obtain a mixed slurry; the mass ratio of the manganese oxide to the rhodium source is (75~150):(1~10); D) drying and calcining the mixed slurry to obtain a precursor; E) reducing the precursor in a reducing atmosphere to obtain the Rh / MnO nanocatalyst. The nanocatalyst of this invention exhibits high conversion rate and high selectivity in the direct synthesis of multi-carbon oxygen-containing compounds from syngas. The multi-carbon oxygen-containing compounds produced by the Rh / MnO catalyst provided by this invention contain a high proportion of ethanol and acetaldehyde, achieving the co-production of ethanol and acetaldehyde.

This invention discloses a method for the selective oxidation of methane to oxygen-containing compounds using water as the oxidant. The method employs orthorhombic molybdenum trioxide as the sole catalyst and water as the sole oxidant, allowing methane to react with water in a closed reaction system, resulting in the directional conversion to oxygen-containing compounds. This method eliminates the need for added precious metal catalysts, hydrogen peroxide, or oxygen as external oxidants, and avoids the use of co-catalysts, co-reactants, or reducing agents such as carbon monoxide or hydrogen. The selective oxidation of methane is achieved solely with water and orthorhombic molybdenum trioxide, simplifying the reaction system composition. Furthermore, the preparation process is simple and inexpensive, reducing catalyst costs and oxidant safety risks, while simultaneously achieving the directional conversion of methane to oxygen-containing compounds. This invention solves the problems of high oxidant costs and complex processes caused by co-reactants in existing technologies, and eliminates the generation of excessive CO or CO2 oxidation products.

This invention discloses a core-sandwich-shell structured catalyst with hierarchical interconnected channels, its preparation method, and its applications. The catalyst uses a microporous zeolite core, and a mesoporous zeolite sandwich layer is constructed in situ on the outer layer of the zeolite through controlled desilication, directly connecting it to the core micropores. Based on this, mesoporous silica is induced to grow epitaxially along the sandwich pore direction using a surfactant micelle template, constructing a continuously interconnected hierarchical pore structure. An active metal is supported within the mesoporous silica shell. This structure is beneficial for improving the mass transfer behavior of macromolecular intermediates and achieving spatial partitioning of hydrogenation and acidification functions, making it suitable for the hydrodeoxygenation reaction of biomass-derived oxygen-containing compounds.

This invention discloses a method for reducing energy consumption in an oxygen-containing compound-to-olefins unit. The method comprises: 1) Preheating of liquid oxygen-containing compound feedstock from outside the unit; 2) Dividing the preheated liquid oxygen-containing compound into two streams: one stream undergoes heating, vaporization, and superheating, and enters the external circulation pipe lifting section of the reactor as a lifting medium; the other stream undergoes heating, vaporization, and enters the feedstock superheater (I); 3) After sufficient heat exchange with the high-temperature oil and gas generated from the reactor in step 2), the oxygen-containing compound enters the reactor for further reaction; 4) The high-temperature oil and gas generated from the reactor is then sent to the downstream quench water washing system after heat exchange in the feedstock superheater (I). The method for reducing energy consumption in an oxygen-containing compound-to-olefins unit provided by this invention has advantages such as ease of implementation, wide applicability, and low equipment investment. It can be widely used in units converting oxygen-containing compounds to produce low-carbon olefin products and units producing liquid products from oxygen-containing compounds.

The present disclosure relates to a method of manufacturing an organoboron salt, wherein the method comprises reacting an ionic boron-oxygen compound with a base and a (di)carboxylic acid, or a trimethylsilyl-protected derivative thereof, thereby forming the organoboron salt. The present disclosure also relates to a method of processing the organoboron salt.

The present invention provides, in part, methods and processes for the production of lithium superoxide (LiO2) which is free of other lithium-oxygen compounds, as well as compositions and electrochemical cells comprising lithium superoxide (e.g., lithium superoxide that is free of other lithium-oxygen compounds).

An integrated process for producing light olefins is disclosed. The integrated process includes sending a synthesis gas stream and a hydrogen stream to a methanol synthesis section to provide a methanol-containing reactor effluent. The reactor effluent is separated into a vapor stream and a methanol-containing liquid stream. The methanol-containing liquid stream is sent to a methanol purification section, which includes at least two distillation columns, namely a first distillation column and a second distillation column, to provide a methanol product stream. At least a portion of the methanol product stream is sent to an oxygenate conversion unit to provide an olefin-containing effluent. Reboiling heat for the first and second distillation columns is provided from the separation section of the oxygenate conversion unit.

This invention relates to the field of molecular sieve preparation technology, and discloses a SAPO-35 molecular sieve, its preparation method, and its applications. The SAPO-35 molecular sieve has a total specific surface area of ​​310-420 m². 2 The SAPO-35 molecular sieve has a micropore area ratio of not less than 85% of the total specific surface area; the total acid content of the sieve is not less than 1450 μmol / g, of which the proportion of moderately strong acids is not less than 33%. The SAPO-35 molecular sieve provided by this invention has a high total specific surface area and a high micropore area ratio, making it particularly suitable for gas separation and adsorption applications. It can also be used for catalytic conversion reactions of oxygen-containing compounds, exhibiting high catalytic activity. The preparation method of the SAPO-35 molecular sieve provided by this invention has a high solids yield.

The present application relates to a kind of high-stability molecular sieve and normal paraffin hydroisomerization catalyst prepared by it, the high-stability molecular sieve of the present application is obtained by the activation of one-dimensional mesoporous silicon-aluminum molecular sieve by fluoride, and organic amine repair.It is repaired to the framework structure of one-dimensional mesoporous silicon-aluminum molecular sieve, increases the crystallinity of existing molecular sieve, reduces uncoordinated saturated framework structure, promotes Lewis acidic site in molecular sieve to be converted into acidic site, and improves its tolerance degree to oxygen-containing compounds under high temperature and high pressure reaction conditions, enhances the hydrophobic property of molecular sieve carrier, improves reaction activity and isomer yield, and realizes the stability of catalyst structure in the presence of oxygen-containing compounds and the improvement of catalytic stability.The catalyst prepared by the high-stability molecular sieve of the present application is applied to the hydroisomerization reaction of model compounds or fischer-tropsch synthesis wax oil, and the conditions are mild, conversion rate is high, isomer hydrocarbon proportion is high, catalyst stability is good, and tolerance degree to oxygen-containing compounds is high.

This invention discloses a method for producing Group II base oil from Group I base oil based on the regeneration of waste lubricating oil, belonging to the field of lubricating oil base oil technology. This invention uses Group I base oil obtained from the regeneration of waste lubricating oil as raw material, and obtains Group II base oil through multi-stage adsorption treatment in a primary stirred adsorption reactor, a regenerated clay adsorption reactor, a secondary stirred adsorption reactor, and an activated clay adsorption reactor. In the primary and secondary stirred adsorption reactors, silica gel is used as the adsorbent, which can adsorb colloids, water, aromatic hydrocarbons, some oxygen-containing compounds, and nitrogen-containing compounds in the base oil through physical adsorption and polar interactions. In the regenerated clay adsorption reactor, the heteropolyacid strong acid sites on the modified regenerated clay can undergo acid-base neutralization chemisorption with the alkaline nitrogen-containing compounds in the base oil. Finally, deep adsorption is performed using activated clay in the activated clay adsorption reactor to obtain Group II base oil with low nitrogen content and high oxidation stability. The process is simple and the conditions are mild.

The application discloses a low-temperature plasma dielectric barrier discharge reactor device and application of the device in methane selective oxidation reaction. The device comprises a high-voltage electrode, saturated NaCl solution, a discharge glass reaction tube, a glass sleeve, a ground glass tube, a polytetrafluoroethylene sleeve I, a polytetrafluoroethylene sleeve II and an inner glass tube. The high-voltage electrode is composed of the saturated NaCl solution covering the inner glass tube. The device can realize efficient activation and conversion of methane and oxygen at normal temperature and pressure, and significantly improves the yield of oxygen-containing compounds.

This disclosure relates to a method for refining Fischer-Tropsch synthetic oil. A mixed feedstock, consisting of coal-based Fischer-Tropsch mixed olefins, coal-based Fischer-Tropsch mixed heavy hydrocarbons, and coal-based Fischer-Tropsch wax from the Fischer-Tropsch synthesis reaction, is fed into a reaction unit for hydrogenation to obtain reaction products. These products are then fed into a hot high-pressure separator, a cold high-pressure separator, a hot low-pressure separator, and a cold low-pressure separator for gas-liquid two-phase separation. The resulting third and fourth liquid phases are fed into a fractionation unit for fractionation to obtain coal-based synthetic liquid wax, heavy hydrocarbons, and light hydrocarbons. The heavy hydrocarbons are then sent to a vacuum unit for separation to obtain heavy liquid paraffin, coal-based Fischer-Tropsch soft wax, and refined coal-based Fischer-Tropsch wax. The light hydrocarbons are then sent to a stabilization unit for pressure stabilization. This method removes oxygen-containing compounds and saturates olefins, thereby improving product stability and achieving separation and purification of the Fischer-Tropsch synthetic oil, resulting in a high-quality product.

The present invention relates to a process for producing phosphorus-chloride compounds, characterized by the following steps: i. reacting a phosphorus-oxygen compound-containing material in the presence of tetrachloroethene at a temperature of 500 to 1000°C, and ii. removing and isolating the resulting phosphorus-chloride compound, particularly phosphorus oxychloride, from the exhaust gas stream.

This utility model discloses a system for removing oxygen-containing compounds from the product gas of butene oxidative dehydrogenation to butadiene production, comprising: a product gas-liquid separator; a quenching and washing tower having a lower quenching section and an upper washing section, the quenching section of the quenching and washing tower being connected to the upper gas phase of the product gas-liquid separator, the bottom of the quenching and washing tower being provided with a bottom wastewater outlet pipe, the bottom wastewater outlet pipe being connected to the upper part of the quenching section via a main bottom wastewater channel that returns most of the bottom wastewater to the upper part of the quenching section; and a stripping tower, the bottom wastewater outlet pipe of the quenching and washing tower being connected to the inlet of the stripping tower via a branch channel that inputs a small portion of the bottom wastewater into the stripping tower. In this utility model, the bottom wastewater from the quenching and washing tower is sent to the stripping tower for treatment, avoiding direct discharge of the bottom wastewater from the quenching and washing tower, thus reducing wastewater volume and preventing excessive COD in the discharged wastewater.

The present invention provides, in part, methods and processes for the production of lithium superoxide (LiO2) which is free of other lithium-oxygen compounds, as well as compositions and electrochemical cells comprising lithium superoxide (e.g., lithium superoxide that is free of other lithium-oxygen compounds).