54 results about "Oxocarbon" patented technology

A system is described that enables the purification of COx, SOx, NOx, dioxin and furan, and H2S gases using wet and dry filters in a single chimney, comprising: a nozzle system (2) that sprays a mixture consisting of water, micronized zeolite, ammonia, and boron mineral in fine droplets to perform the first purification of SOx (sulfur oxides), NOx (nitrogen oxides), and COx (carbon oxides) gases entering the chimney (1) from the combustion gas, a zeolite-based dry filter (3) that purifies the dioxin and furan components in the flue gas (B) rising after the first purification, a first continuous measurement system (4) that measures the values of the combustion gas at the entry point to the chimney (1), a second continuous measurement system (5) that measures the values of the combustion gas after the dry filter (3), an Al-supported processor (6) that adjusts the amount of the mixture to be sprayed from the nozzle system (2) based on the comparison of the first continuous measurement system (4) and the second continuous measurement system (5).

The present invention provides a process and apparatus for producing an alcohol product stream from a gas fermentation process. A feed gas stream comprising hydrogen and a carbon oxide is subjected to fermentation to convert at least a portion of the feed gas stream to an alcohol. Fermentation is conducted in a reactor having a plurality of trays.

A process for converting a carbon oxide into a renewable product, particularly a carbon oxide produced from the hydroconversion of a biofeedstock. The process comprises contacting a carbon oxide containing process stream with a catalyst system under catalytic conditions to convert the carbon oxide to non-carbon oxide products, wherein the catalyst system comprises a noble metal catalyst. The process may be used in an integrated process for producing a renewable fuel and a renewable product from a carbon oxide, the integrated process comprising a biofeedstock hydroconversion process and a carbon oxide deoxygenation process wherein a carbon oxide byproduct from the hydroconversion process is contacted with a catalyst system comprising a noble metal catalyst to produce a renewable product.

The disclosure relates to a catalyst suitable for electrochemical reduction reactions of one or more carbon oxides, comprising a nitride-doped multi-metallic material comprising a primary metal being copper and one or more secondary metals selected from silver, gold, platinum, palladium, ruthenium, iridium, osmium, and any mixture thereof, wherein the nitride-doped multi-metallic material comprises, as determined by XRD, copper, copper nitride and copper-Me alloy wherein Me is one of the secondary metals and to a gas diffusion electrode suitable for electrolysis of one or more carbon oxides comprising such a catalyst.

The application relates to the field of mixed gas purification and discloses application of gaseous alkane in reducing the risk of combustion and explosion in the deoxidation process of oxygen-containing gas, which comprises: mixing the oxygen-containing gas with hydrogen in the presence of stabilizing gas to perform an oxidation reaction; wherein the stabilizing gas is gaseous alkane, and the oxygen-containing gas contains oxygen and optional other flammable gas. The method for deoxidizing the oxygen-containing light hydrocarbon by hydrogen provided by the application reduces the risk of combustion and explosion of the mixed gas by taking gaseous alkane as the stabilizing gas, adopts the hydrogen-catalyzed reaction to promote the reaction of oxygen in the mixed gas with hydrogen to generate water, achieves the purpose of deoxidation of the oxygen-containing gas, the reaction product is clean, the hydrogen-catalyzed reaction can effectively inhibit the occurrence of carbon deposition on the surface of the catalyst and the generation of carbon oxides, and the hydrogen-catalyzed reaction has strong bearing capacity for the fluctuation of the oxygen content of the raw material gas.

The invention relates to the field of oxidative desulfurization of oil and sulfur-containing liquid hydrocarbon fuels (including diesel fuel) and can be used to reduce harmful emissions and exhausts (in the form of sulphur oxide and carbon monoxide - SO2 and CO) of oil refineries, as well as various industrial enterprises (including energy), facilities and engines using hydrocarbon fuels. Method of oxidative desulfurization of oil and liquid hydrocarbon fuel and reducing harmful emissions of sulfur oxides and carbon provides a process of oxidation in tanks or pipelines by ozone (O3) or ozone-containing gases, in which sulfur oxides (SO2 and SO), without releasing them into the atmosphere, mix in a closed vessel or pipeline with carbon monoxide (CO) and by means of chemical reactions of sulfur monoxide decomposition (2SO↑ → SO2↑+S↓) and sulfur recovery (SO2↑ + 2CO↑ → S↓ + 2CO2↑) elemental sulfur (S) is extracted from oil or liquid hydrocarbon fuel and carbon monoxide (CO) is converted into its dioxide (CO2). The oxidation, also decomposition and recovery reactions are carried out one-step or sequentially, in the presence of oxidation-recovery group catalysts corresponding to these reactions, such as tert-Butyl hydroperoxide (C₄H₁₀O₂). Ozonized atmospheric air is used as ozone-containing gas.

A method for synthesizing methanol and a synthesis gas flow include supplying hydrogen and carbon oxides to a methanol reactor assembly. A residual gas flow with unreacted hydrogen and unreacted carbon oxides is obtained from the methanol reactor assembly, and the residual gas flow is supplied to a hydrogen separation assembly to obtain a hydrogen-containing flow, which is supplied to the methanol reactor assembly and has a higher molar proportion of hydrogen than the residual gas flow. A purge gas flow having methane is obtained from the hydrogen separation assembly. The purge gas flow is supplied to a recovery assembly for recovering a recovery flow having carbon dioxide and hydrogen, the recovery assembly has a recovery reactor for partly converting the methane of the purge gas flow into carbon oxides and hydrogen using a partial thermal oxidation, and the recovery flow is supplied to the methanol reactor assembly.

The invention relates to a process for preparing methanol, in which a first reactant stream having a first reactant in the form of hydrogen and a second reactant stream having a second reactant in the form of a carbon oxide-containing gas mixture are provided; the first reactant and the second reactant are fed into a synthesis reactor arrangement; and the methanol synthesis is conducted in the synthesis reactor arrangement to form a product stream having methanol. Forecasts are created as to rates of change in inflow rate of the first and / or second reactant in order to compensate for fluctuations.

The embodiment of the utility model discloses an IC removal device and a TOC analysis system, and relates to the technical field of TOC detection. The IC removal device includes an upper case, a lower case, and a permselective membrane. A first groove is formed in the upper shell, first fixing pieces are arranged at the two ends of the upper shell, and the first groove is used for containing oxycarbide. A second groove is formed in the lower shell, fixing grooves are formed in the two ends of the lower shell, the second groove is used for containing sample fluid, a second fixing piece is arranged in each fixing groove, the upper shell and the lower shell are fixed in an involution mode, and the first fixing piece is inserted into the fixing grooves and abuts against the second fixing pieces, so that the upper shell and the lower shell are detachably fixed. And the selective permeable membrane is arranged between the upper shell and the lower shell and is used for allowing oxycarbide to pass through.

The invention belongs to the field of methanation catalysts, and relates to a flaky nickel-based catalyst as well as a preparation method and application thereof. The nickel-based catalyst comprises an active component nickel and a dispersing agent aluminum oxide, the lamellar thickness of the nickel-based catalyst is 0.8-1.5 nm, and the most probable pore diameter of the nickel-based catalyst is 35-100 nm. The preparation method comprises the following steps: (1) respectively obtaining a nickel salt solution and a mixed alkali solution; and (2) stirring and mixing the nickel salt solution in the step (1) and the mixed alkali solution to obtain a suspension, and reacting to obtain the lamellar nickel-based catalyst. The lamellar nickel catalyst has large pore size distribution, can enhance mass transfer of reactants, can show more excellent catalytic activity in reaction, is used for removing oxycarbide in hydrogen, can realize CO methanation at a lower reaction temperature and reduce the concentration of CO in the hydrogen to be lower than 1ppm, is suitable for industrial production, and has wide application prospects. Wide application prospects are realized.

The invention relates to a process for obtaining a hydrogen stream (1) in a plant (2), wherein a carbon-containing energy carrier stream (3) and an oxygen stream (4) are fed from an oxygen recovery arrangement (5) of the plant (2) to an ATR reactor arrangement (6) of the plant (2) for obtaining a synthesis gas stream (7) comprising hydrogen and carbon oxides, wherein the ATR reactor arrangement (6) affords the synthesis gas stream (7) from the energy carrier stream (3) by autothermal reforming with the oxygen stream (4), so that a catalytic partial oxidation in particular provides the heat required for the endothermic reforming reactions, wherein the synthesis gas stream (7) is fed at least partly to a separating device (8) of the plant (2) for separating the synthesis gas stream (7) into the hydrogen stream (1) including hydrogen and a purge stream (9) including carbon oxides, wherein the plant (2) has a steam heater (13), which steam heater (13) has at least one superheating stage (14a, b) for obtaining a respective superheated output steam stream (15a, b) from a respective input steam stream (16a, b), which input steam stream (16a, b) is conducted through the steam heater (13) until the superheated output steam stream (15a, b) is obtained, and wherein the plant (2) includes a turbine arrangement (12) for generating electrical power, which turbine arrangement (12) is driven by at least one superheated output steam stream (15a, b), characterized in that the at least one superheating stage (14a, b) has at least two heating sections (17) in each case, which heating sections (17) are guided through an inner region (18) of the steam heater (13), in which inner region (18) the heating sections (17) are heated by a burner (19) of the steam heater (13), in that the at least one superheating stage (14a, b) has a quench section (20) which is arranged between the at least two heating sections (17) in terms of process technology, in which quench section (20) steam obtained in

Provided is an oxocarbon compound represented by formula (1) or formula (2). In formula (3), ring A represents a 10- to 18-membered unsaturated hydrocarbon ring, ring B represents an aromatic hydrocarbon ring, an aromatic heterocyclic ring, or a condensed ring including the ring structure of these rings, ring A and ring B may have a substituent, X represents an alkyl group, an aryl group, or an aralkyl group, and * represents a bonding site with the 4-membered ring in formula (1) or the 5-membered ring in formula (2).

The invention relates to a method for synthesising a hydrogen-containing compound, wherein a synthesis gas stream (1) comprising hydrogen and carbon oxides is fed to a methanol reactor arrangement (2) for partial conversion into methanol, wherein a methanol residual gas stream (3) is obtained from the methanol reactor arrangement (2), at least part of said methanol residual gas stream (3) being fed to a CO2 remover (4) from which a synthesis recycle stream (5) and a CO2 product stream (6) are obtained, said CO2 product stream (6) having a higher molar carbon dioxide content than the methanol residual gas stream (3), and wherein part of the synthesis recycle stream (5) is fed to the methanol reactor arrangement (2). The method according to the invention is characterised in that part of the synthesis recycle stream (5) is fed to a hydrogen separator (7) from which a separation stream (8) is obtained which has a higher molar hydrogen content than the synthesis recycle stream (5). The invention also relates to a corresponding system for synthesising a hydrogen-containing compound.

The invention relates to a method for producing a hydrogen stream (1), wherein a carbon-containing energy carrier stream (3) and an oxygen stream (4) from an oxygen generation arrangement (5) of a plant (2) are supplied to an ATR reactor arrangement (6) of the plant (2) in order to produce a synthesis gas stream (7) comprising hydrogen and carbon oxides, wherein the ATR reactor arrangement (6) produces the synthesis gas stream (7) from the energy carrier stream (3) by autothermal reforming with the oxygen stream (4), such that a partial oxidation, in particular a catalytic partial oxidation, provides the heat required for the endothermic reforming reactions, wherein the synthesis gas stream (7) is at least in part supplied to an adsorption device (8) of the plant (2) in order to separate the synthesis gas stream (7) into the hydrogen-containing hydrogen stream (1) and into a first purge stream (10a) and a second purge stream (10b), each comprising carbon oxides. The method is characterised in that: the first purge stream (10a) is supplied to a recovery adsorption device (11) of the plant (2) in order to separate hydrogen from the first purge stream (10); the recovery adsorption device (11) provides a recovery stream (12), that comprises the separated hydrogen, and a remaining recycle stream (13); the recycle stream (13) is supplied substantially completely to the energy carrier stream (3); and the second purge stream (10b) is supplied for combustion to at least one feedstock heater (15a) of a plurality of feedstock heaters (15a-e) of the plant (2). The invention also relates to a corresponding plant for producing a hydrogen stream and to a method for preparing methanol.

Provided is a method which is for producing methanol and which achieves high catalyst stability over time. This method for producing methanol includes the step of bringing a raw material gas into contact with a catalyst to obtain methanol, the raw material gas containing a carbon oxide and hydrogen, the catalyst containing (i) copper and zinc at a molar ratio of the zinc relative to the copper (Zn / Cu) of 0.3 to 0.45, and (ii) an alkali metal in an amount of 0% by mass to 0.05% by mass.

The invention relates to a process for preparing methanol, in which a synthesis gas comprising carbon oxides and hydrogen is provided, which is passed at elevated pressure and elevated temperature through a catalyst bed of a methanol synthesis catalyst for conversion of the synthesis gas to methanol to obtain a product stream comprising crude methanol and unreacted synthesis gas. Unreacted synthesis gas is recycled to the catalyst bed inlet and combined with the synthesis gas, resulting in a mixed synthesis gas. The mixed synthesis gas at the catalyst bed inlet has a stoichiometry number SN of ≥0.80, the catalyst bed in the conversion of the mixed synthesis gas to methanol has a maximum catalyst bed temperature of ≤280° C., and the mixed synthesis gas at the catalyst bed inlet has a carbon monoxide concentration of ≤20% by volume.

The present invention provides a process for producing an alcohol product stream from a gas fermentation process. A feed gas stream comprising hydrogen and a carbon oxide is subjected to fermentation to convert at least a portion of the feed gas stream to an alcohol. A major portion of the alcohol from the reactor is removed in a first gaseous product stream. A gas / liquid mixture is separated to obtain a second gas product stream and an alcohol-enriched liquid stream. The second gas product stream is recycled to the reactor.

The present disclosure relates to an electrode assembly for operating electroreduction of carbon monoxide into carbon products, the electrode assembly comprising a cathodic compartment having a cathodic inlet and a cathodic outlet; a cathode comprising a cathodic catalyst and being in fluid communication with the cathodic compartment; an anode comprising an anodic catalyst being positioned away from the cathode so as to form a gap; an anodic compartment being in fluid communication with the anode, the anodic compartment having an anodic inlet; and an interposer comprising a porous and hydrophilic material being positioned in the gap between the anode and the cathode, wherein the porous and hydrophilic material has pores being at least partially filled with an anolyte when electroreduction is performed to conduct both cations and anions across the gap via the anolyte.

A process for reacting of a hydrocarbon includes reacting a hydrocarbon with oxygen to produce a gas stream and a solid stream in a reactor, and separating the gas stream from the solid stream. The gas stream includes hydrogen, water, and carbon oxides, and the solid stream comprises solid carbon.

An integrated process for producing light olefins by integrating methanol purification with production of olefins from methanol. The methanol fed to the MTO process may be crude methanol or purified methanol in which the heavy oxygenates are removed and treated with the heavy oxygenates in the MTO effluent. By removing or reducing the need for methanol vendors to purify methanol, the cost of converting methanol to olefins or fuels will be reduced.

The invention relates to a process for producing methanol by (a) pyrolyzing and hydrogenating a feed stream (I) containing light hydrocarbons and optionally carbon oxides and sulfur compounds into (al) a crude pyrolyzed gaseous product stream (III) containing hydrogen, residual methane and optionally carbon oxides and hydrogen sulfide and (ail) solid carbon (IV); (b) separating solid carbon (IV) from the crude pyrolysis gaseous product stream (III); (c) optionally separating hydrogen sulfide from the crude pyrolysis gaseous product stream (III), producing (ci) a crude pyrolysis gaseous product stream (VI) containing hydrogen, residual methane and optionally carbon oxides and (cii) optionally adsorbed sulfur (V); (d) converting the crude pyrolysis gaseous product stream (III) or (VI) with a carbon oxide (II) to crude methanol (VII); (e) separating an uncondensed gas stream, i.e. A purge gas (XII), from the crude methanol (VII), thereby obtaining a methanol stream (VIII); (f) purifying the methanol stream (VIII); (g) separating hydrogen (XIV) from the purge gas (XII); (h) recycling the hydrogen (XIV) to the methanol synthesis unit of stage (d).

This invention discloses a high-entropy carbon oxide / resin encapsulation coating for shielding high-energy electrons, its preparation method, and its application, belonging to the field of radiation hardening technology. This invention overcomes the problem of electronic component failure caused by high-energy electron irradiation. The invention involves high-energy ball milling of Nb, Mo, Ta, W, WO3, and carbon powder to obtain a high-entropy carbon oxide (NbMoTaW)C. 1‑x O x The mixture is combined with a resin matrix, coated onto electronic devices, and cured by heating to obtain an encapsulation coating that shields high-energy electrons and radiation-resistant electronic devices. This invention introduces oxygen into high-entropy materials, regulating the lattice structure and electron distribution, promoting lattice contraction and structural densification, and increasing the probability of interaction between high-energy electrons and atomic nuclei and extranuclear electrons in the material, thereby enhancing the material's radiation shielding capability. This invention features a simple process, strong adhesion to the device shell, easy thickness control, and suitability for complex device surface forming, significantly improving the engineering applicability of device packaging.

The invention relates to a method and an apparatus for producing methanol by heterogeneous catalytic reaction of hydrogen and carbon oxides in a methanol synthesis reactor while reducing carbon dioxide emissions. According to the invention, carbon dioxide is removed from the raw synthesis gas or the shifted synthesis gas. Different hydrogen-containing gas streams are produced in a hydrogen recovery stage from the carbon dioxide removed crude syngas or shifted syngas. Different hydrogen-containing gas streams and carbon dioxide removed crude syngas or shifted syngas may be used to replace natural gas fuels in burners, open fire heaters, and auxiliary boilers, thereby reducing carbon dioxide emissions from the process or apparatus.

Provided herein are methods for operating carbon oxide (COx) reduction reactors (CRR) and related apparatus. In some embodiments, the methods involve shutting off, reducing, or otherwise controlling current during various operation stages including hydration, break-in, normal operation, planned shut-offs, and extended shutoff or storage periods.

A reforming system is provided for dedicated steam reforming of a stream rich in paraffins and / or olefins of a jet fuel synthesis plant incorporating the reforming system. The invention provides an overall more efficient feed-to-jet fuel system and process.

Steam reforming, water separation, and hydrogen separation by membrane can be performed sequentially on a mixture of steam and a hydrocarbon. A hydrogen-rich permeate stream from the hydrogen membrane can be used as fuel for combustion heating, leaving a retentate mixture of a prescribed ratio of hydrogen to oxides of carbon. The retentate can be compressed and synthesized to methanol in a methanol synthesis reactor. The synthesized methanol can be separated into a methanol-rich stream and a tail gas stream containing the remaining outlet gas from the synthesis reactor. The methanol-rich stream can be refined. The tail gas stream can be divided into a methanol loop recycle stream, an SMR recycle stream, and a nitrogen purge stream. The methanol loop recycle stream is compressed and recycled to the methanol synthesis reactor. The SMR recycle stream is recycled as feedstock to the reformer. The nitrogen purge stream is combusted in a burner. Carbon dioxide may be separated from combustion products and sequestered.

The invention relates to a method for obtaining a hydrogen stream (1), wherein a carbon-containing energy carrier stream (3) and an oxygen stream (4) from an oxygen recovery arrangement (5) of a plant (2) are supplied to an ATR reactor arrangement (6) of the plant (2) for obtaining a synthesis gas stream (7) containing hydrogen and carbon oxides, wherein the ATR reactor arrangement (6) obtains the synthesis gas stream (7) from the energy carrier stream (3) by autothermal reforming with the oxygen stream (4), such that a particularly catalytic partial oxidation provides the heat required for the endothermic reforming reactions, wherein the synthesis gas stream (7) is at least partially supplied to an adsorption device (8) of the plant (2) for separating the synthesis gas stream (7) into the hydrogen-containing hydrogen stream (1) and into a first purge stream (10a) and a second purge stream (10b), each containing carbon oxides.The process is characterized in that the first purge stream (10a) is fed to a recovery adsorption device (11) of the plant (2) for separating hydrogen from the first purge stream (10), that the recovery adsorption device (11) provides a recovery stream (12) containing the separated hydrogen and a remaining recycling stream (13), that the recycling stream (13) is fed substantially all of the way to the energy carrier stream (3), and that the second purge stream (10b) is fed to at least one feedstock heater (15a) of a plurality of feedstock heaters (15a-e) of the plant (2) for combustion. The invention also relates to a corresponding plant for generating a hydrogen stream and to a process for producing methanol.

The present invention provides a fuel production system and fuel production method that suppresses the loss of thermal energy in the methane reaction and suppresses the deterioration of the reactor and reaction catalyst by adding steam to the methane reaction system. [Solution] The electrolytic device comprises a solid oxide type electrolytic apparatus 11 that electrolyzes a raw material gas containing at least water vapor, a reactor 30 that synthesizes hydrocarbons using carbon oxide and hydrogen from the electrolytic apparatus 11 as raw materials, a heat exchanger 40 that exchanges heat between the generated gas containing hydrocarbons and water vapor from the reactor 30 and liquid water, a condensation separator 60 that separates condensed water from the generated gas cooled in the heat exchanger 40, and a reactor water vapor supply mechanism 500 that supplies water vapor to the reactor 30. The pressure of the liquid water is set to a lower pressure than the pressure of the generated gas, at least a portion of the water vapor in the generated gas condenses in the heat exchanger 40 to produce condensed water, and at least a portion of the liquid water becomes water vapor, and the electrolytic water vapor supply mechanism 600 supplies at least a portion of the water vapor produced in the heat exchanger 40 to the electrolytic apparatus 11.

The application discloses a method for preparing a two-dimensional carbon film by reducing carbon oxides through phase transition of a gallium-based alloy at room temperature, and comprises the following steps: step S1, adding mixed metal particles containing metallic gallium into a sealed container and sealing the container; step S2, removing air in the container and replacing it with high-purity CO or CO2 gas; step S3, continuously stirring or oscillating; step S4, converting the mixed metal particles containing metallic gallium into a liquid phase at room temperature; during the liquid phase conversion of the metal particles, the CO or CO2 gas is reduced to carbon material and covers the surface of the liquid metal; and step S5, peeling off the two-dimensional carbon film, thereby obtaining the two-dimensional carbon film. The method can directly convert CO or CO2 gas into a two-dimensional carbon film with excellent performance at room temperature, can solve the environmental problem, and can realize simple preparation of the two-dimensional carbon film, so the method has a wide application prospect.