76 results about "Oxocarbon" patented technology

This disclosure relates to systems and methods for gas separation in oxocarbon electrolyzers. A disclosed method includes supplying an oxocarbon to an input stream of a cathode chamber of an oxocarbon electrolyzer, converting the oxocarbon to a product gas in the cathode chamber, obtaining an output stream, with the product gas and residual oxocarbon, from the oxocarbon electrolyzer, and recycling a portion of the product gas, from the output stream, to the input stream.

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.

A process for producing a methane containing product gas mixture is described comprising the steps of: (a) providing a hydrogen containing feed gas stream; (b) providing a carbon oxide containing feed gas stream containing carbon dioxide and optionally carbon monoxide; (c) measuring the flow-rate of the hydrogen containing feed gas stream and adjusting the flowrate of the carbon oxide containing feed gas stream, relative to of the flowrate of the hydrogen in the hydrogen containing feed gas stream to produce a feed gas mixture having a composition with a stoichiometric ratio of reactants having a value M of about 3, where M = ([H2]-[CO2]) / ([CO]+[CO2]); (d) passing the feed gas mixture through one or more beds of methanation catalyst, in a methanation unit, to react a portion of the hydrogen with at least a portion of the carbon dioxide and any carbon monoxide to form a first methane containing product gas mixture including residual hydrogen and residual carbon dioxide; (e) measuring the concentration of residual hydrogen of the first methane containing product gas mixture; and combining the first methane containing gas product mixture with an oxygen containing stream, wherein the flow rate of the oxygen containing stream is adjusted relative to the measured concentration of residual hydrogen in the first methane containing product gas mixture, so as to produce a second methane containing product gas mixture which is passed through a bed of an oxidation catalyst in a hydrogen removal unit to form a hydrogen depleted third methane containing product gas mixture; comprising a total of less than 5 mole% hydrogen; wherein the hydrogen containing gas stream is produced by electrolysis of water.

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.

A process of separating carbon oxides from a flue gas stream is disclosed. The process comprises separating a flue gas stream into a first flue gas stream and a second flue gas stream. The first flue gas stream is combusted with an oxygen stream in a boiler to provide a carbon dioxide rich flue gas stream. A carbon dioxide recycle stream is taken from the carbon dioxide rich flue gas stream. The second flue gas stream is recycled to an oxygenate production unit. The carbon dioxide recycle stream is recycled to the boiler or to a regenerator or both.

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.

A method for generating hydrogen (H2) includes introducing a H2-containing feed gas stream into a reactor containing a red mud-supported nickel (Ni-SRM) catalyst including Ni-SRM catalyst particles. The method further includes passing the H2-containing feed gas stream through the reactor to contact the H2-containing feed gas stream with the Ni-SRM catalyst particles at a temperature of 500° C. to 700° C. to form an activated Ni-SRM catalyst and terminating the introducing the H2-containing feed gas stream. The method further includes introducing and passing CH4-containing feed gas stream through the reactor to contact the CH4-containing feed gas stream with the activated Ni-SRM catalyst at a temperature of 600° C. to 1000° C. thereby converting at least a portion of the CH4 to carbon and H2.

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 present application relates to a kind of methods for removing carbon oxide in hydrogen, wherein a kind of methanation catalyst is prepared using a rotary reinforced impregnation method.The methanation catalyst prepared using the rotary reinforced impregnation method has smaller nickel particle size and nickel dispersion compared to the conventional impregnation method for preparing supported catalysts, which can effectively remove carbon oxide at high temperature and exhibit excellent catalytic activity in the methanation reaction for removing carbon oxide at low temperature, thereby reducing the energy consumption of the reaction for removing carbon oxide in hydrogen, and has broad application prospects.

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 utility model discloses an induction heating furnace system, and belongs to the technical field of new energy. According to the technical scheme, the device comprises a heating furnace system, and the heating furnace system is integrated with a heating element, a three-channel valve, a distribution collecting pipe and a control system; the heating element adopts a circumferential symmetric modular design, multi-section heating is realized, energy supply as required and accurate temperature control are realized, and the heating process requirements in the petrochemical industry field can be met; the heating furnace system can replace a traditional gas heating furnace, adopts green electric power resources as energy sources, avoids emission of a large amount of nitric oxide and oxycarbide, and is clean, environment-friendly, energy-saving and efficient. The novel heating furnace system can realize on-line replacement of heating elements, prolongs the production cycle, and can be widely applied to the field of practical chemical engineering.

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.

The present application belongs to the hydrogen purification technical field, and relates to a method for removing carbon oxides from hydrogen. The hydrogen-rich gas containing carbon oxides is subjected to a contact reaction with a nickel catalyst, wherein the nickel catalyst comprises a carrier alumina and an active component nickel dispersed thereon; the carrier alumina is prepared by using a rotary strengthening device, including the following steps: using a liquid pump to pump an aluminum sulfate solution and an aluminum hydroxide-sodium hydroxide mixed solution into a rotary strengthening reactor to form a slurry; spraying the slurry into the inside of a wire mesh packing through a solution mixing distributor, and shearing the slurry into small units by rotating the wire mesh packing; making the small units pass through the outlet of the rotary strengthening reactor into a crystallization kettle to perform crystallization to obtain crystallized materials, and performing calcination after filtration, washing and drying to obtain the alumina carrier. The carrier alumina used in the present application has high reactivity in the application of removing trace carbon oxides from hydrogen.

The application belongs to the technical field of desalination of salt-containing solution, and particularly relates to a CDI electrode active material, which is a carbon nanogrid-coated nanobismuth material, wherein the carbon nanogrid is an oxocarbon material with an atomic level thickness, and an O-Bi chemical bond exists between the carbon nanogrid and the nanobismuth; in the CDI electrode active material, the weight content of bismuth is 92-97%. The application further provides a preparation method of the material, wherein a C1-C3 bismuth carboxylate is heated to a temperature T1, and the CDI electrode active material is prepared through carbonization; the T1 is 350-850 DEG C. The application further provides application of the material in CDI. The material has excellent CDI capacity and selectivity.

The present disclosure is related to integrating salt- or ion-containing water with a carbon oxide electrolyzer, and associated systems and methods.

A process for supplementing production of liquid fuel from carbon oxides is disclosed. The process comprises contacting a hydrocarbon feed stream with a catalyst in a reactor to produce a reactor effluent stream. The reactor effluent stream is separated to provide a dry gas stream. The dry gas further separated into a CO2 rich stream and a CO2 lean stream. The CO2 lean stream is used to produce methanol. The methanol is contacted with an MTO catalyst to produce an olefin stream. The olefin stream is oligomerized by contacting it with an oligomerization catalyst in an oligomerization reactor to produce an oligomerized olefin stream which is further hydrogenated. A sustainable aviation fuel is taken from the hydrogenated oligomerized stream.

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.