216 results about "Hydrogen compounds" patented technology

An article for joule heating is described, including a three-dimensional substrate on and / or in which a pyrolyzate of a phenolic resin or polymer forms an electrically conductive carbon network. Such articles may be incorporated in structured materials applications, which may include support, sorbent, and or catalyst components. Also described are methods of fabricating such articles and structured materials, and apparatus comprising same, and methods of use of such articles and structured materials and apparatus for conducting material transformation processes requiring input of heat for their performance, such as CO2 adsorption, methane pyrolysis for hydrogen and carbon production, hydrogen-assisted conversion of CO2 to hydrocarbons, including catalytic conversion of CO2 to olefins, catalytic conversion of CO2 to propane (liquefied petroleum gas), and catalytic conversion of CO2 to renewable natural gas, reverse water gas shift reaction, steam ethane cracking, propane cracking, steam methane reforming, and dry methane reforming.

The utility model discloses a vertical liquid storage tank pump inlet pipeline structure which comprises a pump inlet pipeline, a horizontal pipeline and a slope pipeline which are sequentially connected, the pump inlet pipeline is vertically arranged downwards along a storage tank pipeline nozzle, and the horizontal pipeline is connected to the lower end of the pump inlet pipeline. The gradient pipeline is arranged above the horizontal pipeline, the lower end of the gradient pipeline is connected with the horizontal pipeline, a stop valve is arranged on the gradient pipeline, the upper end of the capillary pipeline is connected with a storage tank, and the lower end of the capillary pipeline extends to the inner bottom of the horizontal pipeline. The utility model aims to solve the technical problems in the prior art, and provides a vertical liquid storage tank pump inlet pipeline structure which can keep low-temperature liquid in a horizontal pipeline circulating and thoroughly block the risks of dry evaporation and hydrocarbon precipitation at the dead end of the pipeline.

A system includes production tubing, a first packer, a second packer, one or more first ports, and one or more first conduits. The production tubing extends downhole through multiple subsurface formations including a first formation and a second formation that are gas-bearing formations and a third formation separating the first formation and the second formation. The first packer is positioned in the third formation. The second packer is positioned uphole of the formations. The one or more first ports extend through the production tubing downhole of the first packer. The first ports are movable between an open configuration and a closed configuration. The one or more first conduits extend from a first opening in an outer surface of the production tubing to a second opening in the outer surface of the production tubing, with a first valve positioned between the first opening and the second opening.

The invention relates to the field of fuel, and discloses a fuel composition and application thereof. The fuel composition comprises a basic fuel and functional fuel addition components, the functional fuel addition components comprise polyoxymethylene dialkyl ether, hydrocarbon, a cetane number enhancer and a lubricant, the hydrocarbon is polycyclic hydrocarbon fuel and / or polycyclic hydrocarbon fuel, and the cetane number enhancer is polycyclic hydrocarbon fuel and / or polycyclic hydrocarbon fuel. The lubricant is selected from dibasic acid monoester compounds and fatty acid and / or fatty acid polyol ester; based on the total mass of the functional fuel additive components, the content of the polyoxymethylene dialkyl ether is 1-70% by mass, the content of the hydrocarbon is 15-90% by mass, the content of the cetane number enhancer is 0.005-10% by mass, and the content of the lubricant is 0.001-5% by mass. The composition is suitable for making up the deficiency of polyoxymethylene dimethyl ethers in plateau areas and improving the power and power performance of fuel engines.

The invention provides a method and system of estimating an influx profile for at least one well fluid from a reservoir to a producing hydrocarbon well. The method comprises installing a liner (14) with at least one tracer chamber (16) wherein each tracer chamber comprises at least one distinct tracer (22). The method comprises perforating a liner section, the at least one chamber and surrounding formation to create at least one influx locations and deposit tracer and / or tracer molecules from each tracer chamber into the formation at the at least one influx location. The method comprises inducing production flow from the reservoir into the well and collecting samples downstream of the at least one influx location at known sampling times. The method comprises analysing samples for concentration of tracer. Based on the analysed concentrations the contribution of flow from the at least one influx location may be calculated.

A method for joint and optimal production of hydrocarbons and lithium from a well, the method including obtaining field data for an oil and gas field with at least one well accessing at least one hydrocarbon reservoir. The method further includes obtaining a set of well operational parameters related to the oil and gas field and obtaining a set of lithium extraction configuration parameters related to the oil and gas field. The method further includes determining, with an artificial intelligence model, a predicted hydrocarbon production and a predicted lithium extraction from production fluids of the oil and gas field based on the field data, the set of well operational parameters, and the set of the lithium extraction configuration parameters and adjusting, automatically, the set of well operational parameters and the set of the lithium extraction configuration parameters to jointly optimize the predicted hydrocarbon production and the predicted lithium extraction.

To provide a combustion system capable of suppressing emission of greenhouse effect gas caused by mixed combustion of combustion supporting fuel with mixed gas containing inert gas and hydrocarbon gas while suppressing atmospheric emission of hydrocarbon gas.SOLUTION: A combustion system 1 includes: a membrane separation device 3 that generates process gas Gp obtained by separating at least part of nitrogen gas Gn from mixed gas Gm by using a separation membrane; a boiler 19 capable of burning at least any of methane gas Gh, the mixed gas Gm and the process gas Gp; and a mixed gas control section 6 that controls supply of the mixed gas Gm to the membrane separation device 3. When inert gas ratio determination means 9 determines a ratio is larger than a first threshold value, the mixed gas control section 6 supplies the mixed gas Gm from a mixed gas line 2 to the membrane separation device 3.SELECTED DRAWING: Figure 1

A process is disclosed for the production of hydrocarbons with removal of coke from a product stream. In a first mode, hydrocarbons and steam are subjected to steam cracking to obtain a cracked gas. The removal of coke from the steam is performed using a coke trap thus obtaining a coke-depleted cracking gas which is subjected to quench heat exchange in the first mode downstream of the coke trap, effecting cooling. Product stream is formed in the first operating mode using the cracked gas cooled in the quench heat exchange. The coke trap is emptied in a second mode using a stream extracted from a cracking furnace, bypassing the quench heat exchange, to obtain a coke stream. The coke stream in the second mode is passed to a coke collector.

A water dispersible repellent containing a modified form of a polyol and a dispersant, the repellent satisfying one or more of (1) and (2), and being capable of imparting oil resistance to a base material (for example, fiber or paper). (1) Differential scanning calorimetry of the modified form of a polyol or differential scanning calorimetry of a solid component obtained by removing the liquid medium from the repellent shows the temperature of the maximum endothermic peak in the temperature zone of 25°C-180° C is 55°C or more. (2) The modified form of a polyol has at least four monovalent C20-40 hydrocarbon groups which may have substituents.

A method for producing a hydrogen-containing gas stream containing hydrogen sulfide with concomitant production of low-sulfur carbonaceous material comprises the steps of (i) providing a hydrocarbon feed gas stream containing sulfur-containing compounds; (ii) supplying carbonaceous particles to a reactor and subjecting the feed gas stream to pyrolysis in the reactor over a moving bed of the carbonaceous particles; (iii) recovering a stream of hydrogen-containing gas stream containing hydrogen sulfide; and (iv) recovering low-sulfur carbonaceous particles. Sulfur ends up in the form of hydrogen sulfide, which is either harmless for selected downstream applications, or is purposively used in selected downstream applications or could be easily removed from the hydrogen stream. A desulfurization step before thermocatalytic conversion of sulfurous hydrocarbon feedstocks is not necessary.

A method for producing a synthetic fuel from hydrogen and carbon dioxide comprises extracting hydrogen molecules from hydrogen compounds in a hydrogen feedstock to produce a hydrogen-containing fluid stream; extracting carbon dioxide molecules from a dilute gaseous mixture in a carbon dioxide feedstock to produce a carbon dioxide containing fluid stream; and processing the hydrogen and carbon dioxide containing fluid streams to produce a synthetic fuel. At least some thermal energy and / or material used for at least one of the steps of extracting hydrogen molecules, extracting carbon dioxide molecules, and processing the hydrogen and carbon dioxide containing fluid streams is obtained from thermal energy and / or material produced by another one of the steps of extracting hydrogen molecules, extracting carbon dioxide molecules, and processing the hydrogen and carbon dioxide containing fluid streams.

A method for producing hydrogen by thermochemical splitting of water includes injecting one or more feed streams of water into a reaction chamber. The method further includes using a molten salt heated by a subterranean heat source to carry out the thermochemical splitting of water to form hydrogen and oxygen in the reaction chamber. The formed products are subsequently removed from the reaction chamber. Hydrogen formed in the reaction chamber may be used in a downstream process to generate hydrocarbons.

The subject of the present invention is the use, for reducing the emissions of nitrogen oxides and at least one type of polluting agent chosen from carbon monoxide and unburned hydrocarbons during the combustion of a liquid fuel in a compression-ignition internal combustion engine, of an additive composition comprising: (i) one or more additives chosen from compounds having in their structure at least one alkyl-phenol group; and (ii) one or more cetane index-improving additives; in which the mass ratio of the quantity of additive(s) (i) to the quantity of additive(s) (ii) is in the range from 1:3 to 3:1.The present invention also relates to a method for reducing emissions of nitrogen oxides and at least one type of polluting agent chosen from carbon monoxide and unburned hydrocarbons during the combustion of a liquid fuel in a compression-ignition internal combustion engine, using this additive composition.

Processes for preparing synthetic hydrocarbons are disclosed herein. An aspect of the process comprises: electrolyzing a feed stream comprising steam and CO2 with a H2O / CO2 (S / C) molar ratio greater than about 2.0 in a high-temperature co-electrolyzer apparatus operating at a co-electrolyzer temperature to produce an enhanced hydrogen rich syngas having a first concentration of H2, removing at least a portion of H2 from the enhanced hydrogen rich syngas to provide a hydrogen rich syngas having a second concentration of H2 that is lower than the first concentration of H2, and producing at least an FT product stream that comprises synthetic hydrocarbons by reacting the hydrogen rich syngas in a Fischer-Tropsch (FT) reactor. Processes for reducing methane and soot content during production of an enhanced hydrogen rich syngas are also disclosed.

Technology to convert syngas into aviation fuel is described. Some variations provide a process comprising: providing a starting syngas stream comprising H2 and CO; purifying the syngas feed stream, if necessary; feeding the clean syngas stream to an alcohol-synthesis reactor, to catalytically convert syngas to a C1-C10 mixed-alcohol stream; feeding the C1-C10 mixed-alcohol stream to a dehydration reactor, to catalytically convert C1-C10 mixed alcohols to C2-C10 mixed olefins; feeding the mixed olefins to an oligomerization reactor, to catalytically convert the C2-C10 mixed olefins to C5-C16 mixed hydrocarbons; feeding the C5-C16 mixed hydrocarbons and hydrogen to a hydrogenation reactor, to catalytically hydrogenate C═C double bonds within the C5-C16 mixed hydrocarbons, thereby generating stabilized C5-C16 mixed hydrocarbons; and recovering the stabilized C5-C16 mixed hydrocarbons as aviation fuel. In preferred embodiments, the aviation fuel is sustainable aviation fuel (SAF) under ASTM D7566-24a.

A catalyst for improving emissions and fuel efficiency in combustion chambers may include aluminum chloride, cerium (III) chloride, deionized water, propylene glycol, lithium chloride, chloroplatinic acid, rhodium chloride, perrhenic acid, and a pH adjuster, such as lithium hydroxide or hydrochloric acid reagent. A method of improving emissions and fuel efficiency in combustion chambers while simultaneously enhancing combustion of hydrocarbons may include introducing the catalyst via a vaporous transport into the flame zone of a combustion chamber.

Systems and methods for producing methane and sulfur. A first system includes a condensate separation system to separate a feed stream of mixed hydrocarbons, an acid gas removal system to produce a methane product stream and a reactant gas stream of carbon dioxide and hydrogen sulfide and a catalytic reactor configured to react the carbon dioxide and the hydrogen sulfide from the reactant gas stream using a carbon-based catalyst and produce an effluent methane stream, an effluent sulfur stream, and a waste stream. Another system for producing methane and sulfur includes a first separation system to separate water vapor and oxygen to produce a hydrogen sulfide stream, a catalytic reactor configured to react a separated carbon dioxide stream and the hydrogen sulfide stream using a carbon-based catalyst and produce a methane stream and a sulfur stream.

The invention discloses a hexagonal scandium hydrogen compound and a preparation method thereof, and the preparation method comprises the following steps: taking a borane ammine complex as a solid hydrogen source, tabletting the borane ammine complex and elemental scandium through a mold, and stacking according to'hydrogen source-scandium-hydrogen source '; loading the assembly into a CVD diamond single crystal tube with holes, and carrying out secondary wrapping with NaCl to form a sealed reaction unit; carrying out segmented pressurization / depressurization in a cubic press, electrifying and segmented heating under the condition of 800-1200 DEG C, and carrying out pressure maintaining and cooling to complete synthesis; according to the method, local high hydrogen partial pressure is established under the action of moderate high pressure and double-layer sealing, external introduction of high-pressure hydrogen is avoided, and the equipment complexity and the safety risk are reduced; the product prepared by the invention is hexagonal-phase ScH3, can stably exist at normal temperature and normal pressure, and is different from cubic-phase ScH3 which can only be synthesized under an extreme high-pressure condition and cannot be kept stable after pressure relief, XRD and structure refinement are consistent with the standard, and the process can be repeated and amplified.

The invention relates to a process for producing hydrogen by reforming hydrocarbons with steam, and separating carbon dioxide. The process comprises an endothermic reforming step and an autothermal reforming step for producing a synthesis gas stream, wherein the heat produced in the autothermal reforming step is used for heating in the endothermic reforming step. The process further comprises a step of converting the obtained synthesis gas stream to enrich hydrogen, a step of separating the thus produced hydrogen by pressure swing adsorption, and a step of separating carbon dioxide from the residual gas obtained from the pressure swing adsorption. The reforming units for the endothermic reforming step and the autothermal reforming step are arranged in parallel to each other or in series.

The present invention relates to a process and system for forming a hydrocarbon feedstock from a biomass material, and the hydrocarbon feedstock formed therefrom. The biomass may be cellulose, hemicel

Method for producing synthesis gas comprising carbon monoxide (CO) and hydrogen (H2) comprising: feeding an oxidizing stream comprising O2 and a first reducing stream comprising H2 into a first zone of a reactor, where the oxidizing stream and / or the first reducing stream comprises CO2; generating an oxy-flame in the first zone by reaction between O2 and H2, and producing a first gas comprising CO H2Ovapor by contacting the oxidizing stream and the first reducing stream with the oxy-flame; feeding into the reactor a second reducing stream comprising a second source of carbon comprising a hydrocarbon; generating in a second reaction zone of the reactor of a second gas comprising the synthesis gas, from the first gas coming from the first reaction zone and the second reducing stream by a reaction involving the hydrocarbon.

Processes for converting methane and / or other hydrocarbons to synthesis gas (i.e., a gaseous mixture comprising H2 and CO) are disclosed, in which at least a portion of the hydrocarbon(s) is reacted with CO2. At least a second portion of the methane may be reacted with H2O (steam), thereby improving overall thermodynamics of the process, in terms of reducing endothermicity (ΔH) and the required energy input, compared to “pure” dry reforming in which no H2O is present. Such dry reforming (reaction with CO2 only) or CO2-steam reforming (reaction with both CO2 and steam) processes are advantageously integrated with Fischer-Tropsch synthesis to yield liquid hydrocarbon fuels. Further integration may involve the use of a downstream finishing stage involving hydroisomerization to remove FT wax. Yet other integration options involve the use of combined CO2-steam reforming and FT synthesis stages (optionally with finishing) for producing liquid fuels from gas streams generated in a number of possible processes, including the hydropyrolysis of biomass.

Provided is a method for operating a blast furnace with which it is possible to reduce the reduction material ratio by using coke having an appropriate reactivity. Provided is a method for operating a blast furnace in which an iron-based starting material and coke are charged in layers from the top of the blast furnace and an oxygen-containing gas and a reducing material containing a hydrocarbon gas are blown into the interior of the blast furnace from the tuyere of the blast furnace, the method being characterized in that: when the oxygen concentration of the oxygen-containing gas is 80 vol% or more, the oxygen-containing gas is introduced into the blast furnace; coke having a reactivity index CRI of 35 or less is used as the coke to operate. The hydrocarbon gas is preferably a gas of hydrogen and / or a hydrogen-containing compound.

A system for mitigating naturally occurring radioactive materials (NORM) in an oxidative dehydrogenation process includes a feed stream, an oxidative dehydrogenation (ODH) reactor, an effluent stream, a processing unit, and a NORM reduction unit. The feed stream includes oxygen, a hydrocarbon, and NORM. The ODH reactor is configured to receive the feed stream and react the hydrocarbon with the oxygen to form a dehydrogenated hydrocarbon and water. The effluent stream includes the dehydrogenated hydrocarbon, water, unreacted hydrocarbon, and NORM. The processing unit is configured to process the effluent stream to form a product stream and a recycle stream. The product stream includes the dehydrogenated hydrocarbon. The recycle stream includes unreacted hydrocarbon and NORM. The NORM reduction unit is configured to reduce an amount of the NORM in the recycle stream to produce a NORM-reduced recycle stream. The ODH reactor is configured to receive the NORM-reduced recycle stream.

Technology to convert syngas into aviation fuel is described. Some variations provide a process comprising: providing a starting syngas stream comprising H2 and CO; purifying the syngas feed stream, if necessary; feeding the clean syngas stream to an alcohol-synthesis reactor, to catalytically convert syngas to a C1–C10 mixed-alcohol stream; feeding the C1–C10 mixed-alcohol stream to a dehydration reactor, to catalytically convert C1–C10 mixed alcohols to C2–C10 mixed olefins; feeding the mixed olefins to an oligomerization reactor, to catalytically convert the C2–C10 mixed olefins to C5–C16 mixed hydrocarbons; feeding the C5–C16 mixed hydrocarbons and hydrogen to a hydrogenation reactor, to catalytically hydrogenate C=C double bonds within the C5–C16 mixed hydrocarbons, thereby generating stabilized C5–C16 mixed hydrocarbons; and recovering the stabilized C5–C16 mixed hydrocarbons as aviation fuel. In preferred embodiments, the aviation fuel is sustainable aviation fuel (SAF) under ASTM D7566-24a.

The invention relates to a drilling fluid having adsorbent particles added to it and also to a method of drilling a well into a subterranean hydrocarbon reservoir. The adsorbent particles adsorb benzene and toluene that has been taken up in the drilling fluid from the hydrocarbon reservoir. This mitigates the problem of benzene vapor being released at the surface, especially at the shaker. The adsorbent particles can be of a size that allows them to be separated from rock cuttings in the shaker and recirculated into the drilling fluid. When the drilling job is complete, the adsorbent particles may be disposed of safely.

A process and a process plant for production of a hydrocarbon product comprising low amounts of HPNA from a hydrocarbonaceous stream derived from a thermochemical decomposition of a solid renewable material.

A method can include coupling sulfur dioxide depolarized electrolysis (e.g., electrochemical oxidation of sulfur dioxide to sulfuric acid with electrochemical reduction of water to hydrogen) with the contact process to facilitate formation of high concentration sulfuric acid with concurrent hydrogen production. The sulfuric acid and hydrogen can optionally be used cooperatively for downstream processes (e.g., metal extraction from ore, fertilizer production, hydrocarbon processing, etc.).

A method and a process arrangement for producing hydrocarbons from plastic-based raw material by a gasification in an integrated process The integrated process includes a gasification unit for forming a gasification product, a steam cracking unit for forming a cracking product and a recovery unit for recovering hydrocarbons. The plastic-based raw material is gasified with steam in the gasification unit having at least one fluidized bed gasifier and the gasification product is formed, the gasification product is cooled at least partly for slowing and / or stopping the chemical reactions after the gasification, The gasification product is supplied to a quench tower of the gasification unit in which the gasification product is treated and condensable components are removed from the gasification product forming a treated gasification product, and the treated gasification product and the cracking product of the steam cracking unit are supplied to the recovery unit for separating and recovering hydrocarbons.

Systems and systems to generate clean energy and for providing hydrogen capture and carbon capture sequestration are provided. Heat from partial oxidation of hydrocarbon fuel is used to generate clean power via one or more heat engines together with hydrogen capture and carbon capture sequestration.