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696
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Updated on
26/04/2025 [07:14:00]
Results 625 to 650 of 696
Absstract of: WO2025040614A1
The present invention relates to a method for the preparation of a (meth)acrylate in which firstly, a first stream is provided. The first stream contains a hydrocarbon and/or hydrogen. The first stream is reacted with a CO2-containing stream, which is provided by thermal reaction, thereby obtaining a compound having 1 to 4 carbon atoms and 1 to 2 oxygen atoms. This compound is then further reacted to form (meth)acrylate, said reaction comprising the reaction of ethene and/or methanol with a CO-containing stream.
Absstract of: WO2025040493A1
The invention relates to a metal substrate (10-1, 10-2) for use as an electrode (206-1, 206-2) in an electrolytic cell (200), wherein: the substrate (10-1, 10-2) extends in a planar manner in a substrate plane; the substrate plane is spanned by a substrate longitudinal direction (12) and substrate transverse direction (14); the substrate (10-1, 10-2) has a front face (18) and an opposite rear face (20) and has a thickness in a thickness direction orthogonal to the substrate plane; in the substrate (10-1, 10-2) a plurality of through channels (26) are formed which are each delimited by a wall of the substrate (10-1, 10-2); the wall delimiting a respective through channel (26) has upper wall portions which delimit the through channel (26) towards the top; and at least some of the upper wall portions are inclined upwards at an angle in the direction towards the rear face in a respective guide region. The invention also relates to an electrolytic cell (200) comprising such a substrate (10-1, 10-2).
Absstract of: WO2025042447A1
A method for producing an olefin product, including the steps of converting a hydrocarbon feedstock to an unsaturated hydrocarbon stream through a steam cracking process in an olefins production plant; combusting hydrogen to provide at least some of the heating duty to the steam cracking process, wherein the hydrogen has a carbon intensity less than about 1.0 kg CO2e / kg H2, wherein the hydrogen is produced using a hydrogen production process; providing at least some of the required energy for the hydrogen production process from a biomass power plant; and processing the unsaturated hydrocarbon stream to recover the olefin product. The olefin product may comprise ethylene having a well-to-gate carbon intensity less than about 0.6 kg CO2e / kg C2H4, or may comprise propylene having a well-to-gate carbon intensity less than about 0.6 kg COCO2e / kg C3H6.
Absstract of: DE102023122838A1
System (30) zur Gewinnung von getrocknetem Wasserstoff, mit einer Elektrolysevorrichtung (31) zur Gewinnung von Wasserstoff aus Wasser, mit einer Trocknungsvorrichtung (35) zur Trocknung eines in der Elektrolysevorrichtung (31) gewonnenen Wasserstoff-Wasser-Gemischs, wobei die Trocknungsvorrichtung eine erste Trocknungseinrichtung (36) zum Entfernen flüssigen Wassers aus dem in der Elektrolysevorrichtung (31) gewonnenen Wasserstoff-Wasser-Gemisch aufweist, wobei die Trocknungsvorrichtung (35) einen ersten Wärmetauscher (38) zum Abkühlen des in der ersten Trocknungseinrichtung (36) teilgetrockneten Wasserstoff-Wasser-Gemischs unter Auskondensieren dampfförmigen Wassers aufweist, wobei die Trocknungsvorrichtung eine zweite Trocknungseinrichtung (42) zum Entfernen des auskondensierten Wassers aus dem abgekühlten Wasserstoff-Wasser-Gemisch aufweist, mit einem zweiten Wärmetauscher (40) zum weiteren Abkühlen des in dem ersten Wärmetauscher (38) abkühlten Wasserstoff-Wasser-Gemischs unter weiterem Auskondensieren dampfförmigen Wassers, wobei der erste Wärmetauscher (38) eingerichtet ist, zur Kühlung des die erste Trocknungseinrichtung (36) verlassenden Wasserstoff-Wasser-Gemischs das die zweite Trocknungseinrichtung (42) verlassende Wasserstoff-Wasser-Gemisch über den ersten Wärmetauscher zu führen, wobei der zweite Wärmetauscher (40) eingerichtet ist, zur Kühlung des den ersten Wärmetauscher (38) verlassenden Wasserstoff-Wasser-Gemischs ein Kühlmittel über den
Absstract of: DE102023122491A1
Eine elektrisch leitfähige Platte (3) eines Zellenstapels eines Elektrolyseurs zur Wasserstoffherstellung umfasst einen als 3D-Druck-Teil ausgebildeten metallischen Plattengrundkörper (4), welcher mindestens eine Nut (9) aufweist, in der sich eine als Spritzgusskomponente ausgebildete Dichtung (5) befindet.
Absstract of: DE102023122813A1
Die Erfindung betrifft ein metallisches Substrat (10) für den Einsatz als Elektrode (206-1) in einer Elektrolysezelle (200), wobei das Substrat in einer Substratebene flächig erstreckt ist, wobei die Substratebene durch eine Substratlängsrichtung (12) und eine Substratquerrichtung (14) aufgespannt ist, wobei das Substrat eine Vorderseite (18) und eine gegenüberliegende Rückseite (20) aufweist und eine Dicke in einer zu der Substratebene orthogonalen Dickenrichtung aufweist, wobei in dem Substrat eine Mehrzahl von Durchgangskanälen (26) ausgebildet sind, welche jeweils durch eine Wandung des Substrats begrenzt sind, wobei die einen jeweiligen Durchgangskanal begrenzende Wandung obere Wandungsabschnitte aufweist, welche den Durchgangskanal nach oben begrenzen, wobei zumindest eine Teilmenge der oberen Wandungsabschnitte in einem jeweiligen Führungsbereich in Richtung zur Rückseite hin schräg nach oben geneigt ist. Die Erfindung betrifft auch eine Elektrolysezelle (200) umfassend ein solches Substrat (10).
Absstract of: AU2023433484A1
The present invention discloses an electrode plate of an electrolysis apparatus and an electrolysis apparatus to which the electrode plate is applied. A direct current power supply is connected to the electrolysis apparatus and an electrolyte is injected into the electrolysis apparatus, to convert electric energy into chemical energy. The electrode plate includes a silicon-based electrode plate made of a doped conductive silicon material. The silicon-based electrode plate is electrically connected to the direct current power supply, and a flow channel is disposed on at least one surface of the silicon-based electrode plate, so that the electrolyte is input into the electrolysis apparatus through the silicon-based electrode plate, to implement an electrochemical reaction and output a reaction product. In the present invention, on a basis of maintaining good mechanical support and sealing function, material and process costs of the electrode plate of the electrolysis apparatus are significantly reduced, an overpotential of the electrochemical reaction for producing the reaction product is reduced, and an electrolysis reaction rate per unit area in the electrolysis apparatus is increased. Therefore, an operating voltage is effectively reduced at a same electrochemical reaction rate, and energy conversion efficiency of the electrochemical reaction is finally significantly improved.
Absstract of: AU2023379054A1
2. The invention relates to a filter for treating process fluid such as that which in particular arises during hydrogen electrolysis, preferably for separating hydrogen and/or oxygen from process water, having a first filter element (10) and a second filter element (12), which encloses the first filter element (10) with the formation of a flow space (14) with a predefinable radial spacing, wherein each filter element (10, 12) has a filter medium (16, 18) through which the process fluid can flow in a flow-through direction (24) from the outside to the inside or preferably from the inside to the outside, wherein, seen in the flow-through direction (24), the one filter medium (16) forms a first degassing stage, which is used to enlarge gas bubbles through coalescence and to remove same from the process fluid through separation caused by buoyancy, and the subsequent further filter medium (18) forms a second degassing stage, which is used to remove very finely distributed gas bubbles remaining in the process fluid, again through coalescence and the separation of same through rising caused by buoyancy.
Absstract of: US2025066716A1
Microorganisms and bioprocesses are provided that convert gaseous substrates, such as renewable H2 and waste CO2 producer gas, or syngas into high-protein biomass that may be used directly for human nutrition, or as a nutrient for plants, fungi, or other microorganisms, or as a source of soil carbon, nitrogen, and other mineral nutrients. Renewable H2 used in the processes described herein may be generated by electrolysis using solar or wind power. Producer gas used in the processes described herein may be derived from sources that include gasification of waste feedstock and/or biomass residue, waste gas from industrial processes, or natural gas, biogas, or landfill gas.
Absstract of: US2025066715A1
Microorganisms and bioprocesses are provided that convert gaseous substrates, such as renewable H2 and waste CO2 producer gas, or syngas into high-protein biomass that may be used directly for human nutrition, or as a nutrient for plants, fungi, or other microorganisms, or as a source of soil carbon, nitrogen, and other mineral nutrients. Renewable H2 used in the processes described herein may be generated by electrolysis using solar or wind power. Producer gas used in the processes described herein may be derived from sources that include gasification of waste feedstock and/or biomass residue, waste gas from industrial processes, or natural gas, biogas, or landfill gas.
Absstract of: US2025066274A1
Processes for converting ethane into ethylene include the steps of subjecting a water feed stream to electrolysis to form O2 and H2, subjecting a mixture of ethane and O2 to oxidative dehydrogenation to form a reaction product containing ethylene, acetic acid, water, and CO/CO2, separating the reaction product into an ethylene product stream, an acetic acid product stream, a water product stream, and a gas stream containing CO/CO2, and introducing the water product stream into the water feed stream for electrolysis. The ethylene product stream can be contacted with a suitable polymerization or oligomerization catalyst composition to produce ethylene polymers or ethylene oligomers.
Absstract of: US2025066932A1
The present disclosure provides a functional (photovoltaic) PV powered facilitated Water electrolyzer system for solar hydrogen generation having two components: a functional PV panel and a facilitated water electrolyzer. The present invention provides functional PV powered facilitated water electrolyzer (F-PV-WE) systems. The invention provides a process using integrated functional PV with facilitated water electrolysis for multiproduct generation including hydrogen, oxygen and hypochlorite with reduction in energy and environmental footprint.
Absstract of: US2025066934A1
A method of running a water electrolyzer that can operate on seawater without a significant voltage rise. In some embodiments, the method includes the use of specific ionomers in the catalyst layer. In some embodiments, the method involves using a Break-In Procedure. In some embodiments, the method can include periodic interruption of the voltage to the AEM electrolyzer.
Absstract of: US2025066938A1
Provided are a porous transport layer for water electrolysis including a first layer containing first particles of a titanium group element, and a second layer containing second particles of a titanium group element. An average diameter of the first particles is larger than an average diameter of the second particles, and a surface of the first layer abutting the second layer is planarized. A method for manufacturing the same is also provided.
Absstract of: US2025066927A1
A geothermally powered hydrogen production system includes a wellbore that heats a heat transfer fluid, thereby forming heated heat transfer fluid. A heat exchanger heats a feed stream using the heated heat transfer fluid, thereby forming a heated feed stream. An electrolyzer receives the heated feed stream and generates hydrogen from the heated feed stream.
Absstract of: US2025066939A1
A system and method for thermal energy delivery for hydrogen (H2) gas production is disclosed. The method involves generating electricity via a solar plant and providing it to a hydrogen electrolyzer. Thermal energy from the solar plant is used to heat a primary working fluid, which transfers heat to a secondary working fluid in an evaporator, converting it into vapor. This vaporized secondary working fluid drives a turbine, generating electricity through a Rankine cycle system where the secondary working fluid circulates continuously, transmitting the secondary working fluid and a portion of the generated electricity to the hydrogen electrolyzer, which splits the secondary working fluid into H2 gas and oxygen, storing the H2 gas in a hydrogen gas storage tank. When solar power is unavailable, the stored electricity in the battery energy storage is supplied to the electrolyzer.
Absstract of: US2025066936A1
The present disclosure relates to a transition metal-doped nickel phosphide nanostructure, a method for preparing the same, and a catalyst for electrochemical water decomposition including the transition metal-doped nickel phosphide nanostructure. More specifically, a transition metal-doped nickel phosphide nanostructure can be prepared by converting a zinc oxide nanostructure grown on a substrate vertically by hydrothermal synthesis to a transition metal-doped nickel oxide nanostructure by cation exchange and then phosphorizing the nickel oxide. The transition metal-doped nickel phosphide nanostructure of the present disclosure is advantageous in that it has superior catalytic activity and conductivity due to large surface area. In addition, when used as a catalyst for water decomposition under an alkaline condition, it has a low overvoltage and can have excellent catalytic activity for hydrogen evolution reaction or oxygen evolution reaction.
Absstract of: AU2023313378A1
The present invention relates to a method and device for producing hydrogen by dissociating water molecules through thermochemical reactions, using a small amount of active material. The thermochemical reactions are induced by solar power with a moderate concentration of up to 50 suns, which can be achieved through linear or parabolic concentrators.
Absstract of: US2025066933A1
A modular electrochemical system, said system comprising: one or more electrochemical blades, wherein each electrochemical blade comprises at least one electrochemical stack, and one or more balance of plant (BOP) blades, wherein each BOP blade comprises at least one BOP facility for at least one electrochemical stack, wherein the or each electrochemical blade(s) corresponds to any one or more of the BOP blades, and vice versa, and each electrochemical and/or BOP blade is provided with a framework, said framework comprising at least one port adapted to enable connection with one or more corresponding blades.
Absstract of: WO2025041428A1
Provided is a water electrolysis system that alters power consumption by sensing a system frequency to rapidly change power consumption, wherein a suitable adjustment margin that can be accommodated instantaneously by an electrolytic cell is calculated so as to suppress deterioration or failure of the electrolytic cell. This water electrolysis system is configured by including: a rectifier that converts alternating-current power of a power system to direct-current power; an electrolysis tank that performs water electrolysis using the direct-current power from the rectifier; a gas-liquid separator that performs gas-liquid separation of oxygen and hydrogen from a fluid that is a mixture of oxygen and water from the electrolytic cell; and a cooling system that supplies water to the electrolytic cell. The water electrolysis system is characterized in that: the rectifier is controlled so as to adjust power consumption in accordance with the frequency of the power system; the power consumption is adjusted so that the power consumption in the electrolytic cell is within a limited range for power consumption; and the limited range for power consumption is determined on the basis of the temperature and deterioration rate of the electrolytic cell, the pressure of water at an exit of the electrolytic cell, and the flow rate of the supplied water.
Absstract of: EP4512930A1
Disclosed are a microbial electrolysis cell suppressing methane generation and a method of producing hydrogen using the same, and more particularly microbial electrolysis cell technology, which prevents the growth of methanogens inside a reactor during operation of a microbial electrolysis cell by aerating a substrate for use in a microbial electrolysis cell with acetylene gas before supply of the substrate, thereby suppressing consumption of the hydrogen and substrate by methanogens, ultimately increasing the hydrogen yield and lifespan of the microbial electrolysis cell.
Absstract of: WO2023205154A1
A system and method of power management for a power generation system is disclosed. A method of power management for a hydrogen generation system including one or more electrochemical stacks, the one or more electrochemical stacks receiving power from an electrical grid including at least one power source, includes: receiving a frequency or voltage reference value for the hydrogen generation system; continually monitoring a frequency or voltage of the electrical grid; and varying a load of the hydrogen generation system in response to the frequency or voltage of the electrical grid differing from the frequency or voltage reference value to restore the frequency or voltage of the electrical grid to the frequency or voltage reference value.
Absstract of: WO2023205126A1
The systems and methods described herein provide for control of hydrogen generation based on one or more characteristics of an input power signals, including a voltage of the input power signal and/or a frequency of the input power signal. The hydrogen generation system may be controlled in response to a reactive power consumption of the hydrogen generation system and/or a reactive power component of a power grid providing energy to the hydrogen generation system. In one embodiment, the hydrogen generation system may be controlled to generate reactive power in circumstances in which a voltage an input power signal is less than or more than a voltage range. In another embodiment, the hydrogen generation system may control hydrogen production based on a frequency of the input power signal.
Absstract of: EP4512931A1
Es wird ein Verfahren (100, 200, 300, 400, 500) zur Herstellung von Wasserstoff (H) vorgeschlagen, bei dem ein kohlenwasserstoffhaltiger Einsatz (G) unter Erhalt eines ersten Anteils des Wasserstoffs (H) und Erhalt von Kohlenstoff (C) einer Pyrolyse (10) unterworfen wird. Hierbei ist vorgesehen, dass Dampf (S) unter Erhalt eines zweiten Anteils des Wasserstoffs (H) und unter Erhalt von Sauerstoff (O) einer Hochtemperaturelektrolyse (20, 40) unterworfen wird, wobei zumindest ein Teil des Dampfs (S) durch Abwärme der Pyrolyse (10) erzeugt wird. Eine entsprechende Anlage ist ebenfalls Gegenstand der vorliegenden Erfindung.
Nº publicación: EP4511936A1 26/02/2025
Applicant:
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
Absstract of: WO2024002797A1
The invention relates to a system combination (100), comprising: at least two electrolysis systems (1A, 1B); a power supply source (3) having a direct voltage output (7); and a central supply line (5); wherein the central supply line (5) is connected to the direct voltage output (7) of the power supply source (3), so that a direct current can be fed into the central supply line (5) and a central DC network designed for a high voltage is provided, to which DC network the electrolysis systems (1A, 1B) are connected by means of the central supply line (5). The power supply source (3) has, as a power generator, a wind turbine (19), to which a rectifier (13A) having a direct voltage output (7) is connected, the direct voltage output (7) being designed for the high voltage. At least one of the electrolysis systems (1A, 1B) is disposed at the base of the tower of the wind turbine (19) and is connected there directly to the central supply line (5). The invention also relates to a of a DC network in a system combination of this type, wherein a number of electrolysis systems (1A, 1B) is connected to a central supply line (5) for direct current, and wherein a direct current is fed, at a specified high voltage, into the central supply line (5) by means of a direct voltage output (7).
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