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1058
results.
Updated on
24/10/2025 [06:58:00]
Results 75 to 100 of 1058
Absstract of: AU2025201947A1
In a process in which ammonia is cracked to form a hydrogen gas product and an offgas comprising nitrogen gas, residual hydrogen gas and residual ammonia gas, residual ammonia is recovered from the offgas from the hydrogen recovery process by partial condensation and phase separation, and hydrogen is recovered from the resultant ammonia-lean offgas by partial condensation and phase separation. The recovered ammonia may be recycled the cracking process and the recovered hydrogen may be recycled to the hydrogen recovery process to improve hydrogen recovery from the cracked gas. Overall hydrogen recovery from the ammonia may thereby be increased to over 99%. In a process in which ammonia is cracked to form a hydrogen gas product and an offgas comprising nitrogen gas, residual hydrogen gas and residual ammonia gas, residual ammonia is recovered from the offgas from the hydrogen recovery process by partial condensation and phase separation, and hydrogen is recovered from the resultant ammonia-lean offgas by partial condensation and phase separation. The recovered ammonia may be recycled the cracking process and the recovered hydrogen may be recycled to the hydrogen recovery process to improve hydrogen recovery from the cracked gas. Overall hydrogen recovery from the ammonia may thereby be increased to over 99%. ar a r n a p r o c e s s i n w h i c h a m m o n i a i s c r a c k e d t o f o r m a h y d r o g e n g a s p r o d u c t a n d a n o f f g a s c o m p r i s i n g n i t r o
Absstract of: AU2025200754A1
A diagnosis system of an electrolysis device, includes: a device to output an impedance data indicating a measurement result of a complex impedance; a first memory unit to store prior data including a relation data indicating a relation between state of the device and a diagnosis result of a state of the device; a first processing unit to analyze the 5 impedance data, judge validity of an analysis result, and output an analysis data indicating the analysis result in which data indicating at least a part of a frequency region of the measurement result is determined valid; a second processing unit to output a state data indicating the state based on first data including the analysis data; a second memory unit to store second data including the state data; and a third processing unit to output a diagnosis 10 data based on data including the prior data and the second data. A diagnosis system of an electrolysis device, includes: a device to output an impedance data indicating a measurement result of a complex impedance; a first memory unit to store prior data including a relation data indicating a relation between state of the 5 device and a diagnosis result of a state of the device; a first processing unit to analyze the impedance data, judge validity of an analysis result, and output an analysis data indicating the analysis result in which data indicating at least a part of a frequency region of the measurement result is determined valid; a second processing unit to output a sta
Absstract of: AU2023439737A1
The present invention relates to a hydrogen production system and a control method therefor. The method comprises: determining operation parameter information of the hydrogen production system according to output information of a new energy power generation device; and, according to the operation parameter information and operation demand information of the hydrogen production system, selecting a switching-on mode and a switching-off mode from amongst a plurality of preset modes of hydrogen production units of the hydrogen production system. On the basis of the output information of the new energy power generation device and the operation conditions of the hydrogen production system, the present invention performs selection of switching-on and switching-off of the hydrogen production units, thus improving the operation efficiency of the hydrogen production system.
Absstract of: JP2025150866A
【課題】空気極の周縁へのクラックの発生を抑制できる技術を提供する。【解決手段】固体酸化物形電解セルは、空気極と、燃料極と、前記空気極と前記燃料極との間に配置された固体電解質層と、を備え、前記空気極の周縁は、一部又は全周において、凹凸が交互に繰り返す凹凸部を有し、前記凹凸部の中で最も窪んでいる第１の点と、前記凹凸部の中で２番目に窪んでいる第２の点と、を通る線を第１の線とし、前記第１の線に対して平行な線であって、前記凹凸部の中で最も突出している第３の点から前記第１の線までの半分の距離に位置する線を第２の線とした場合、前記凹凸部において、前記第２の線よりも突出している部分の面積は、前記第２の線よりも窪んでいる部分の面積よりも大きい。【選択図】図５
Absstract of: JP2025150861A
【課題】空気極へのクラックの発生を抑制できる技術を提供する。【解決手段】固体酸化物形電解セルは、一般式Ａ１ｘＡ２ｙＢＯ３－δ（ただし、０．９≦ｘ＋ｙ＜１、δは酸素欠損量）で表されるペロブスカイト構造を有する複合酸化物を主成分として含有する空気極と、燃料極と、前記空気極と前記燃料極との間に配置された固体電解質層と、を備え、前記空気極は、クロムを含有する第１の物質と、硫黄を含有する第２の物質と、を含み、前記空気極の断面における前記第１の物質と前記第２の物質との面積占有率の合計は、前記固体電解質層側の界面から１０μｍ以内の界面領域よりも、前記固体電解質層側とは反対の表面から１０μｍ以内の表面領域の方が大きい。【選択図】図２
Absstract of: JP2025150859A
【課題】空気極へのクラックの発生を抑制できる技術を提供する。【解決手段】固体酸化物形電解セルは、一般式Ａ１ｘＡ２ｙＢＯ３－δ（ただし、０．９≦ｘ＋ｙ＜１、δは酸素欠損量）で表されるペロブスカイト構造を有する複合酸化物を主成分として含有する空気極と、燃料極と、前記空気極と前記燃料極との間に配置された固体電解質層と、を備え、前記空気極は、硫黄を含有する物質を含み、前記空気極の断面における前記物質の面積占有率は、前記固体電解質層側の界面から１０μｍ以内の界面領域よりも、前記固体電解質層側とは反対の表面から１０μｍ以内の表面領域の方が大きい。【選択図】図２
Absstract of: JP2025150858A
【課題】空気極へのクラックの発生を抑制できる技術を提供する。【解決手段】固体酸化物形電解セルの空気極は、主成分としてのペロブスカイト構造を有する複合酸化物と、クロムを含有する物質と、を含み、前記空気極の断面における前記物質の面積占有率は、０．８％以上９．５％以下である。【選択図】図２
Absstract of: JP2025150860A
【課題】空気極へのクラックの発生を抑制できる技術を提供する。【解決手段】固体酸化物形電解セルは、一般式Ａ１ｘＡ２ｙＢＯ３－δ（ただし、０．９≦ｘ＋ｙ＜１、δは酸素欠損量）で表されるペロブスカイト構造を有する複合酸化物を主成分として含有する空気極と、燃料極と、前記空気極と前記燃料極との間に配置された固体電解質層と、を備え、前記空気極は、前記複合酸化物とは異なる物質であって、コバルトと鉄との少なくとも一方を含有する物質を含み、前記空気極の断面における前記物質の面積占有率は、前記固体電解質層側の界面から１０μｍ以内の界面領域よりも、前記固体電解質層側とは反対の表面から１０μｍ以内の表面領域の方が大きい。【選択図】図２
Absstract of: JP2025150961A
【課題】 光触媒を用いた水素ガス製造装置に於いて、水槽部が複数の容器を継ぎ合わせて形成されている場合に、その継ぎ目又は接合部から水素ガスが漏洩しないようにする。【解決手段】 水素ガス製造装置は、水を貯留する水槽部と、水槽部内の水中に分散又は配置された光触媒体にして、光が照射されると、励起電子と正孔を発生し、水分子を水素と酸素とに分解する水の分解反応を起こし水素ガスを発生する光触媒物質を有する光触媒体と、光触媒体へ照射されて水の分解反応を惹起する光を発する光源装置とを含み、水槽部が複数の容器を継ぎ合わせて形成されており、その継ぎ目が水槽部の水の液相に接触するよう構成されている。【選択図】 図１
Absstract of: WO2025212836A1
In one aspect, the disclosure relates to methods comprising flowing a gas mixture over a catalyst in a reaction chamber; and heating the gas mixture and the catalyst, thereby producing a gaseous product. The disclosure also relates to a composition, comprising hydrogen produced using the methods disclosed herein. The disclosure also relates to a catalyst comprising a structured support; a binder dispersed on the structured support; and a particulate catalyst dispersed on the structured support. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Absstract of: WO2025211488A1
The present invention relates to an ammonia decomposition catalyst and a method for producing same. Specifically, the present invention relates to an ammonia decomposition catalyst in the form of a carrier containing lanthanum and alumina, with ruthenium as an active metal and an alkali metal as a co-active metal supported on the carrier, and a method for producing same, wherein the alkali metal is Li, Na, K, Rb, Cs, or a mixture thereof.
Absstract of: WO2025208967A1
Disclosed in the present invention is a hydrogen production and dissolution device, comprising a housing, a vertical frame, a power supply assembly, an electrolysis assembly, a treatment assembly, a reaction assembly, and a heat dissipation assembly. The vertical frame is arranged in the housing; the housing comprises a reaction chamber and a power supply chamber, and the power supply chamber and the reaction chamber are separated by means of a partition plate; the power supply assembly is arranged in the power supply chamber; the electrolysis assembly, the treatment assembly, and the reaction assembly are arranged in the reaction chamber; the electrolysis assembly comprises a water tank and an electrolyzer; the treatment assembly comprises a gas-liquid separator; the reaction assembly comprises a pressure booster and reaction tanks, and ultrasonic generators are arranged inside the reaction tanks; and the heat dissipation assembly comprises first heat dissipation fans and second heat dissipation fans, wherein the first heat dissipation fans are arranged in the power supply chamber, and the second heat dissipation fans are arranged in the reaction chamber. The present invention can simultaneously realize hydrogen production and dissolution operations without additional storage and transportation of hydrogen, thereby reducing potential safety hazards.
Absstract of: WO2025208810A1
An alkaline water electrolysis device for rapidly, efficiently, and safely scaling up hydrogen production, comprising an alkaline water electrolysis device, a tie rod, a positive electrode end pressure plate/negative electrode end pressure plate, and a disc spring. A bolt is fixedly mounted on the side of the positive electrode end pressure plate/negative electrode end pressure plate close to the disc spring, and a nut is provided on the exterior of the bolt. Alternately arranged bipolar plate assemblies, gaskets, and diaphragms are disposed between the positive electrode end pressure plate and the negative electrode end pressure plate. An electrode frame is provided with a liquid path hole, a gas path hole, a rivet hole, and a positioning hole. A rivet is disposed inside of the rivet hole on the electrode frame, and the rivet comprises a rivet head and a rivet shaft.
Absstract of: US2025313969A1
This specification relates to a membrane electrode assembly for hydrogen production, an electrochemical cell comprising the same, and a method for hydrogen production using the same. According to an embodiment of the present invention, the membrane electrode assembly for hydrogen production, the electrochemical cell comprising the same, and the method for hydrogen production using the same can improve ammonia electrolysis durability by preventing performance degradation due to catalyst poisoning and restoring the performance.
Absstract of: US2025313964A1
Proposed is a system for producing blue hydrogen, capturing carbon dioxide and sulfur oxide, recycling carbon and storing reactants, generating power by using a fuel cell, and creating an artificial forest. The system includes a natural gas storage that stores liquefied natural gas including shale gas, a hydrocarbon reformer that produces a gaseous mixture containing hydrogen and carbon dioxide, a hydrogen charging station configured to receive and store the hydrogen, to capture carbon dioxide, to collect a reactant, and to separate a carbon dioxide reactant and a waste solution from the reactant, a carbon resource storage that stores the carbon dioxide reactant, a hydrogen generator that generates hydrogen and transfers the generated hydrogen to the hydrogen charging station, a fuel cell that receives the hydrogen and generates electricity, and an artificial forest creation apparatus that captures carbon dioxide in the atmosphere and transfers the captured carbon dioxide to the reactor.
Absstract of: US2025313464A1
Various aspects of this disclosure relate to large-scale commercial systems and methods of thermochemical processes to produce green hydrogen or syngas from one or more of a hydrocarbon, H2O, and CO2 via a thermochemical gas splitting reactor system. In some embodiments, the systems and methods include a standalone thermochemical reactor that bypasses the requirement for direct concentrated solar radiation as the source of process heat. In some embodiments, the systems and methods include a well-insulated, refractory-lined steel pressure vessel, in which process gases heated indirectly via radiation can be delivered to facilitate the desired thermochemical reactions in a fluidized bed configuration.
Absstract of: US2025312758A1
A hydrogen generation apparatus applies a solid hydrogen carrier on a surface of a conveyance belt by an application apparatus, and ejects, by an ejection apparatus, a liquid containing water onto the hydrogen carrier applied on the surface. A hydrogen collection apparatus collects hydrogen generated by a reaction between the hydrogen carrier and the liquid on the surface. A byproduct generated by the reaction between the hydrogen carrier and the liquid on the surface is collected by a byproduct collection apparatus. A heating apparatus heats the conveyance belt 41.
Absstract of: US2025313520A1
Process and plant for producing methanol, the process comprising the steps of: a) providing a raw synthesis gas stream; b) water gas shifting at least a portion of the raw synthesis gas stream, thereby producing a shifted synthesis gas; c) preparing a separate hydrogen containing stream and a separate oxygen containing stream by electrolysis of a water feedstock; d) introducing at least a portion of the separate hydrogen containing stream into shifted synthesis gas, thereby producing a methanol synthesis gas; and e) converting the methanol synthesis gas into said methanol.
Absstract of: US2025312719A1
An apparatus, including a controller; an air intake system located at a vehicle; an air filtration system; an environmental control system; an air tank located at the vehicle; a water harvesting system; a water filtration system; and a water storage tank located at the vehicle. The controller controls an operation of the air intake system, the air filtration system, the environmental control system, the water harvesting system, and the water filtration system. The air intake system intakes air from an external environment, and the air filtration system filters or purifies the air. The environmental control system heats the air or cools the air. The air tank stores the air and the water harvesting system harvests water from the air. The water filtration system filters or purifies the water and the water storage tank stores the water.
Absstract of: US2025312756A1
A hydrogen generation apparatus includes a case portion, a hydrogen carrier supply portion, a screw conveyor, a liquid supply portion, and a hydrogen collection portion. The hydrogen carrier supply portion supplies a solid hydrogen carrier to the case portion. The screw conveyor is disposed in the case portion, and includes a spiral blade for conveying the hydrogen carrier supplied from the hydrogen carrier supply portion. The liquid supply portion supplies a liquid containing water to the hydrogen carrier conveyed by the screw conveyor. The hydrogen collection portion collects hydrogen generated by a reaction between the hydrogen carrier and the liquid on the screw conveyor.
Absstract of: US2025312759A1
A hydrogen generation apparatus applies a solid hydrogen carrier on a surface of a conveyance belt by an application apparatus, and ejects, by an ejection apparatus, a liquid containing water onto the hydrogen carrier applied on the surface. Then, hydrogen generated by a reaction between the hydrogen carrier and the liquid on the surface is collected by a hydrogen collection apparatus. Byproduct generated by the reaction between the hydrogen carrier and the liquid on the surface is collected by a byproduct collection apparatus. A regulation member regulates the thickness of the hydrogen carrier applied on the surface of the conveyance belt by the application apparatus.
Absstract of: US2025314427A1
There is disclosed a furnace, a fluid feed component, a fluid reforming system, and a method of reforming a fluid. The furnace comprises a vessel that defines a chamber for holding a body of liquid. A fluid inlet is provided for introducing a fluid into the chamber below a level of the body of liquid to cause the fluid to interact with the liquid and to migrate therethrough towards an outlet for discharging a product of the interaction from the chamber. A liquid circulation passage is implemented, having a weir which is operatively located near the level of the body of liquid, and a port which is located remote from the weir and in fluid communication with the fluid inlet so as to enable the liquid to flow over the weir through the liquid circulation passage and through the port.
Absstract of: US2025313968A1
An object of the present invention is to provide an electrode assembly in which an electrolyte membrane is kept from being deteriorated with durability improved. The present invention provides a membrane electrode assembly including an anode electrode on one surface of an electrolyte membrane and a cathode electrode on the other surface thereof, characterized in that the anode electrode includes a porous substrate (A), the cathode electrode includes a porous substrate (B), and the porous substrate (A) and the porous substrate (B) has a total thickness more than 1,000 μm.
Absstract of: US2025313974A1
The present disclosure relates to systems and methods for increasing efficiency and performance by balancing pressure in electrolytic cell. The present disclosure relates to systems and methods of utilizing different valves for controlling absolute pressure and differential in the electrolytic cell system based on hydrogen demand and the operating state of the system.
Nº publicación: US2025313963A1 09/10/2025
Applicant:
SAUDI ARABIAN OIL COMPANY [SA]
Saudi Arabian Oil Company
Absstract of: US2025313963A1
This disclosure relates to methods of forming elemental sulfur and hydrogen gas from hydrogen sulfide. The disclosed methods include contacting a solution including hydrogen sulfide with an electrode for hydrogen evolution and an electrode for sulfur oxidation.
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