Hydrogen Purification Technologies in the Context of Its Utilization

Energies, Journal Year: 2024, Volume and Issue: 17(15), P. 3794 - 3794

Published: Aug. 1, 2024

This publication explores current and prospective methods for hydrogen production purification, with a strong emphasis on membrane-based technologies purification separation. focus is justified by the ongoing shift towards renewable energy sources (RESs) in electricity generation, necessitating strategic changes to increase utilization, particularly automotive, heavy road, rail sectors, 2025–2030. The adoption of from RESs construction, energy, industrial sectors (e.g., process heat or fertilizer production) also under consideration, driving need innovative production, separation, methods. Historically, industrial-scale has been predominantly derived fossil fuels, but such as electrolysis, biological, thermal processes now offer alternatives varying efficiencies (0.06–80%) gas compositions. Therefore, selecting appropriate separation critical based specific usage requirements composition. Industrial-scale commonly employs pressure swing adsorption (PSA) technologies, capable achieving up 99.99% purity. Cryogenic distillation suitable applications needing 95% Membrane including polymer, metallic, electrolytic membranes, have traditionally limited moderate volumes pure are crucial critically evaluates potential membrane technology response anticipated rise demand RES-derived hydrogen, feedstocks.

Language: Английский

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Adoption of advanced coal gasification: A panacea to carbon footprint reduction and hydrogen economy transition in South Africa

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 77, P. 301 - 323

Published: June 17, 2024

Language: Английский

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A review of challenges with using the natural gas system for hydrogen

Energy Science & Engineering, Journal Year: 2024, Volume and Issue: 12(10), P. 3995 - 4009

Published: Aug. 18, 2024

Abstract Hydrogen, as an energy carrier, is attractive to many stakeholders based on the assumption that extensive global network of natural gas infrastructure can be repurposed transport hydrogen part a zero‐carbon future. Therefore, utility companies and governments are rapidly advancing efforts pilot blending low‐carbon into existing systems, with goal eventually shifting pure hydrogen. However, has fundamentally different physical chemical properties gas, major consequences for safety, supply, climate, cost. We evaluate suitability using distribution summarize differences between assess latest science engineering each component value chain distribution, discuss proposed solutions building effective chain. find every challenged by reuse. Hydrogen circumvent challenges but offers only small reduction in greenhouse emissions due hydrogen's low volumetric density. Furthermore, transition not possible without significant retrofits replacements. Even if technical economic barriers overcome, serious safety environmental risks remain.

Language: Английский

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Integrative assessment of hydrogen-natural gas mixtures in energy grids: An overview of the H2SAREA project experience

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Hydrogen in natural gas grids: prospects and recommendations about gas flow meters

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 86, P. 343 - 362

Published: Aug. 30, 2024

To inject green hydrogen (H2) into the existing natural gas (NG) infrastructure is one way to decarbonize European energy system. However, asset readiness necessary be successful. Preliminary analysis and experimental results about compatibility of mixtures (H2NG) with actual grids make scientific community confident feasibility. Nevertheless, specific technical questions need more research. A significant topic debate impact H2NG on performance state-of-the-art fiscal measuring devices, which are essential for accurate billing. Identifying addressing any potential degradation in their metrological due critical decision-making. literature lacks data meters' technologies currently installed NG grids, such as a comprehensive overview at different concentrations while fragmented among sources. This paper addresses these gaps by analyzing main characteristics categorizing than 20,000 meters THOTH2 project partners' summarizing traditional pure H2 based review, operators experience manufacturers knowledge. Based insights, recommendations given stakeholders overcoming identified barriers facilitate smooth transition.

Language: Английский

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Composition analysis of hydrogen-enriched natural gas by high-pressure benchtop NMR spectroscopy with a low-cost flow-through cell design

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 66, P. 604 - 611

Published: April 16, 2024

The blending of hydrogen with natural gas (NG) is proposed as the simplest short-term solution for storing, transporting, and using hydrogen. composition hydrogen-enriched NG (HENG) blends strongly affects their thermo-physical properties may influence mechanical stability pipelines used. Therefore, its quantification essential but this hampered due to current lack adequate analytical techniques. Here, we introduce first time high-pressure (HP) benchtop proton NMR spectroscopy a quantitative method simple low-cost analysis pressurized HENG blends. For implementing towards an online monitoring scenario, inexpensive HP flow-through cell, capable operating up 245 bar, was designed tested. capability demonstrated on selected different amounts by in-situ change in blend increasing storing buoyancy

Language: Английский

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Development of testing protocols for the measurement of pure and blended hydrogen in natural gas grids: An outlook from the THOTH2 project

Measurement Sensors, Journal Year: 2025, Volume and Issue: unknown, P. 101610 - 101610

Published: Jan. 1, 2025

Language: Английский

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Advancing Sustainable Energy Transition Through Green Hydrogen Valleys

IEEE Access, Journal Year: 2025, Volume and Issue: 13, P. 31442 - 31471

Published: Jan. 1, 2025

Language: Английский

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Green hydrogen blending in natural gas: A global review and a local analysis on Türkiye based on greenhouse gas emission reduction targets

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 97, P. 150 - 159

Published: Nov. 30, 2024

Language: Английский

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Composition tracking of natural gas–hydrogen mixtures in pipeline flow using high-resolution schemes

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 79, P. 756 - 770

Published: July 10, 2024

A transient pipeline flow model with gas composition tracking is solved for studying the operation of a natural under nonisothermal conditions in hydrogen injection scenario. Two approaches to high-resolution modeling based on WENO scheme are presented and compared implicit finite difference method. The models capable capturing fast fluid transients step changes transported mixture. method assumes decoupling components order enhance calculation efficiency. validation results against actual transmission indicates that both exhibit good prediction performance, normalized root mean square errors 0.406% 1.48%, respectively. Under conditions, response reduced model, respect mass energy linepack, at most 3.20%.

Language: Английский

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