Abstract: Technical equilibrium can be used to measure a single gas isotherm in a relatively fast and continuous manner rather than, for example, in a batch manner. Further, an expansion vessel can be used for successive desorption a multicomponent gas in combination with determining the composition of the multicomponent gas in combination with a calculation that provides both qualitative and quantitative information about the multicomponent gas. Moreover, a multicomponent gas can be flowed through an adsorbent bed and the and the flow of the multicomponent gas flow is shut off and isolated when equilibrium is reached.

Abstract: A remote attestation mode negotiation method for a combined device and a related device, where the combined device includes at least a first unit. The method implemented by the first unit includes sending a mode negotiation request message to the remote attestation device; receiving a mode negotiation response message comprising a target remote attestation mode; and determining the remote attestation mode based on the mode negotiation response message. In this way, a target remote attestation manner to be used subsequently can be determined through negotiation between the combined device and the remote attestation device, to provide a data basis for subsequently and sequentially performing remote attestation on the combined device.

Abstract: A method of storing hydrogen gas in a subsurface formation may include compressing hydrogen gas by utilizing a compressor. This may create pressurized hydrogen gas that may be introduced into a subsurface formation through a wellhead to store as reserved hydrogen gas. The reserved hydrogen gas may be stored and maintained in the subsurface formations for a period. Another method in accordance with one or more embodiments of the present disclosure relates to recovering previously stored hydrogen gas from a subsurface storage for energy production. The method may include extracting reserved hydrogen gas from a subsurface formation. The extracted hydrogen gas may be purified by using at least a dehydrator, a pressure swing adsorption unit (PSA) and at least a temperature swing adsorption unit (TSA). The purified hydrogen gas may then be pressurized and used as a fuel for combustion in a turbine-generator unit.

Abstract: A method for stimulating hydrogen production from an injection formation. This method includes the steps of providing a well traversing a subsurface into an injection formation containing hydrocarbons. Carbon dioxide, water, steam, and combustion gas are introduced into the injection formation via the well. Further, the injection formation is stimulated using one or more of infrasonic, sonic, and ultrasonic stimulation. The injection formation is monitored via one or more sensors located in the injection formation to determine one or more properties of reactions in the injection formation and the flow back effluent. Flowback operations are conducted to retrieve flowback effluent.

Abstract: A method for stimulating a reservoir includes providing a well traversing a subsurface into a reservoir containing hydrocarbons. Carbon dioxide and steam may be introduced into the reservoir via the well. The reservoir may be stimulated using one or more of infrasonic, acoustic, and ultrasonic stimulation. Seismic analyses may be applied to determine changes in flow characteristics of the reservoir. Monitoring a flow back effluent via one or more sensors located in the well may determine one or more properties of the flow back effluent. The introduction of carbon dioxide and steam, stimulating, and applying seismic may be repeated until a desired property of the flow back effluent is achieved. The method may include introducing hot carbonated water, carbon dioxide, and cold carbonated water into the reservoir via the well.

Abstract: Embodiments disclosed relate to a method for producing, storing, and transporting a hydrogen gas as a liquid hydrogen fuel. The method includes using sand as a thermal energy storage medium for absorbing, storing, and transferring energy from an energy source to produce a power source, providing the power source to a water electrolysis process to produce a hydrogen gas and an oxygen gas, and the hydrogen gas may be send to a hydrogenation plant to produce liquid hydrogen fuel, and transporting the liquid hydrogen fuel via a transportation system from the hydrogenation plant to a point of consumption.

Abstract: A method for stimulating a reservoir includes providing a well traversing a subsurface into a reservoir containing hydrocarbons. Carbon dioxide and steam may be introduced into the reservoir via the well. The reservoir may be stimulated using one or more of infrasonic, acoustic, and ultrasonic stimulation. Seismic analyses may be applied to determine changes in flow characteristics of the reservoir. Monitoring a flow back effluent via one or more sensors located in the well may determine one or more properties of the flow back effluent. The introduction of carbon dioxide and steam, stimulating, and applying seismic may be repeated until a desired property of the flow back effluent is achieved. The method may include introducing hot carbonated water, carbon dioxide, and cold carbonated water into the reservoir via the well.

Abstract: A remote attestation method includes a first unit of a composite device obtains first measurement information of a second unit of the composite device. The first unit performs, based on the first measurement information, trustworthiness attestation on the second unit to obtain a first attestation result, and the first unit sends the first attestation result to a remote attestation device. In this way, the first unit in the composite device has a remote attestation function, and may perform trustworthiness attestation on another unit in the composite device to which the first unit belongs.

Abstract: A composition includes a carbon dioxide (CO2) emulsion including a continuous critical or supercritical CO2 phase and a discontinuous phase including a polyacrylate. A method of making a CO2 emulsion includes providing a first solution of a polyacrylic acid and critical or supercritical CO2, providing a second solution of a base and critical or supercritical CO2, and mixing the first solution and the second solution such that the polyacrylic acid and the base react to form an emulsion of polyacrylate droplets in critical or supercritical CO2. A method of treating a hydrocarbon-bearing formation includes introducing an emulsion including a continuous CO2 phase and a discontinuous phase comprising a polyacrylate into the formation, contacting the emulsion with an aqueous reservoir fluid in the hydrocarbon-bearing formation, and absorbing an amount of the aqueous reservoir fluid into the polyacrylate of the emulsion to provide a dense CO2 emulsion.

Abstract: A dispersion includes capsules in critical or supercritical carbon dioxide and does not include a surfactant. The capsules include an aqueous solution encapsulated by 2-dimensional particles. A method includes making a dispersion of aqueous solution capsules. The method includes providing a medium of critical or supercritical carbon dioxide, introducing the aqueous solution into the critical or supercritical carbon dioxide medium, and introducing a 2-dimensional particle into the critical or supercritical carbon dioxide medium. The medium does not include a surfactant. Associated methods include using the disclosed dispersions in hydrocarbon-bearing formations.

Abstract: A polymer electrolyte membrane (PEM) fuel cell assembly, and a method for making the assembly, are provided. An exemplary method includes forming a functionalized zeolite templated carbon (ZTC), including forming a CaX zeolite, depositing carbon in the CaX zeolite using a chemical vapor deposition (CVD) process to form a carbon/zeolite composite, treating the carbon/zeolite composite with a solution including hydrofluoric acid to form a ZTC, and treating the ZTC to add catalyst sites, forming the functionalized ZTC. The method further includes incorporating the functionalized ZTC into electrodes, forming a membrane electrode assembly (MEA), and forming the PEM fuel cell assembly.

Abstract: A method for subsurface sequestration of carbon in a subterranean zone includes forming a fluid-filled volume in the subterranean zone by injecting an aqueous into the subterranean zone and injecting a mixture comprising silicate nanoparticles suspended in an acidic solution having a pH of less than 4. Carbon in the form of carbon dioxide is injected into the fluid-filled volume such that a least a portion of the carbon is sequestered by precipitation of carbonate minerals. At least a portion of the carbonate minerals are formed from reaction of metal cations with bicarbonate formed from the carbon dioxide, and least a portion of the metal cations are a product of decomposition of the silicate nanoparticles in the acidic solution.

Abstract: A method for subsurface sequestration of carbon in a subterranean zone includes forming a fluid-filled volume in the subterranean zone by injecting an aqueous into the subterranean zone and injecting a mixture comprising silicate nanoparticles suspended in an acidic solution having a pH of less than 4. Carbon in the form of carbon dioxide is injected into the fluid-filled volume such that a least a portion of the carbon is sequestered by precipitation of carbonate minerals. At least a portion of the carbonate minerals are formed from reaction of metal cations with bicarbonate formed from the carbon dioxide, and least a portion of the metal cations are a product of decomposition of the silicate nanoparticles in the acidic solution.

Abstract: The disclosure relates to systems and methods where an adsorption-based modularized gas storage system is integrated with existing off-network gas distribution pipelines, which can increase the system reliability and robustness for delivering gas. The modularized gas storage system is placed downstream of a natural gas producing well and upstream of a gas-based power plant. The modularized gas storage system can increase the capacity of the overall network, which can allow the pipeline network to absorb the fluctuations in gas demand with little if any need to adjust gas production rate and/or while sacrificing little if any survival time. The storage system can also release the stored gas in the case of an urgent need for gas (e.g., due to a shutdown of a natural gas producing well) to satisfy a desired survival time.

Abstract: A method for subsurface sequestration of carbon in a subterranean zone includes forming a fluid-filled volume in the subterranean zone by injecting an aqueous into the subterranean zone and injecting a mixture comprising silicate nanoparticles suspended in an acidic solution having a pH of less than 4. Carbon in the form of carbon dioxide is injected into the fluid-filled volume such that a least a portion of the carbon is sequestered by precipitation of carbonate minerals. At least a portion of the carbonate minerals are formed from reaction of metal cations with bicarbonate formed from the carbon dioxide, and least a portion of the metal cations are a product of decomposition of the silicate nanoparticles in the acidic solution.

Abstract: A dispersion of capsules in critical or supercritical carbon dioxide is provided. The capsules include an aqueous solution encapsulated by 2-dimensional particles. Also provided is a method of making a dispersion of aqueous solution capsules. The method includes providing a medium of critical or supercritical carbon dioxide, introducing the aqueous solution into the critical or supercritical carbon dioxide medium, and introducing a 2-dimensional particle into the critical or supercritical carbon dioxide medium. Associated methods of using the disclosed dispersions in hydrocarbon-bearing formations are also provided.

Abstract: A downhole monitoring system for continuously measuring in real-time a fluid produced from a reservoir includes a tubing extending into a wellbore, spaced apart packers forming annular seals between the tubing and a wall of the wellbore, isolated compartments formed between the spaced apart packers, each compartment having an opening in the tubing to allow fluid communication from the reservoir to surface equipment, and an ultraviolet spectrometer installed in each compartment. The ultraviolet spectrometer includes an ultra-violet source that excites diamondoids, a photomultiplier to quantify the excited diamondoids, and an electronic circuit that digitizes a response from the photomultiplier and sends the response to the surface of the wellbore. Additionally, a method includes continuously monitoring and in real-time a fluid produced from a reservoir and determining reservoir connectivity and reservoir profiling.

Abstract: A illustrative surface carbon capture and storage system includes a treatment and separation facility that receives CO2 containing fluid and extracts CO2 from the CO2 containing fluid. A compressor downstream of the treatment and separation facility compresses the extracted CO2 into compressed CO2, which is introduced further downstream to a reaction container along with water, and other reactants. A method for surface carbon capture and storage includes separating CO2 from a CO2 containing fluid and compressing the separated CO2. The compressed CO2, along with water, and other reactants is introduced into a reaction container where the CO2 mineralizes. The mineralized CO2 is outputted from the reaction container.

Abstract: A dispersion of capsules in critical or supercritical carbon dioxide is provided. The capsules include an aqueous solution encapsulated by magnetic covalent organic framework particles. Also provided is a method of making a dispersion of aqueous solution capsules. The method includes providing a medium of critical or supercritical carbon dioxide, introducing the aqueous solution into the critical or supercritical carbon dioxide medium, and introducing a magnetic covalent organic framework particle into the critical or supercritical carbon dioxide medium. Associated methods of using the disclosed dispersions in hydrocarbon-bearing formations are also provided.

Abstract: A dispersion of capsules in critical or supercritical carbon dioxide is provided. The capsules include an aqueous solution encapsulated by covalent organic framework particles. Also provided is a method of making a dispersion of aqueous solution capsules. The method includes providing a medium of critical or supercritical carbon dioxide, introducing the aqueous solution into the critical or supercritical carbon dioxide medium, and introducing a covalent organic framework particle into the critical or supercritical carbon dioxide medium. Associated methods of using the disclosed dispersions in hydrocarbon-bearing formations are also provided.