Blue hydrogen: Current status and future technologies

Energy Conversion and Management, Journal Year: 2023, Volume and Issue: 283, P. 116840 - 116840

Published: March 10, 2023

Language: Английский

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Impacts of relative permeability hysteresis, wettability, and injection/withdrawal schemes on underground hydrogen storage in saline aquifers

Fuel, Journal Year: 2022, Volume and Issue: 333, P. 126516 - 126516

Published: Nov. 3, 2022

Language: Английский

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Green hydrogen supply chain risk analysis: A european hard-to-abate sectors perspective

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 182, P. 113371 - 113371

Published: May 24, 2023

Green hydrogen is a tentative solution for the decarbonisation of hard-to-abate sectors such as steel, chemical, cement, and refinery industries. form gas that produced using renewable energy sources, wind or solar power, through process called electrolysis. The green supply chain includes several interconnected entities providers, electrolysers, distribution facilities, consumers. Although there have been many studies about hydrogen, little attention has devoted to risk identification analysis, especially in Europe. This research contributes existing knowledge by identifying analysing European region's factors. Using Delphi method 7 categories 43 factors are identified based on experts' opinions. best-worst utilised determine importance weights High investment capital production delivery technology was highest-ranked factor followed lack enough capacity electrolyser, policy & regulation development. Several mitigation strategies recommendations proposed high-importance study provides novelty an integrated approach resulting scientific ranking chain. results this provide empirical evidence which corroborates with previous countries should endeavour create comprehensive supportive standards regulations implementation.

Language: Английский

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Wettability of shale–brine–H2 system and H2-brine interfacial tension for assessment of the sealing capacities of shale formations during underground hydrogen storage

Energy Reports, Journal Year: 2022, Volume and Issue: 8, P. 8830 - 8843

Published: July 12, 2022

Replacement of fossil fuels with clean hydrogen has been recognized as the most feasible approach implementing CO2-free economy globally. However, large-scale storage is a critical component value chain because lightest molecule and moderately low volumetric energy content. To achieve successful buoyant at subsurface convenient withdrawal during period demand, integrity underground rock overlying seal (caprock) must be assured. Presently, there paucity information on wettability shale interfacial properties H2/brine system. In this research, contact angles shale/H2/brine system hydrogen/brine tension (IFT) were measured using Krüss drop shape analyzer (DSA 100) 50 °C varying pressure (14.7–1000 psi). A modified form sessile was used for measurement, whereas H2-brine IFT through pendant method. values decreased slightly increasing pressure, ranging between 63.68° 14.7 psia 51.29° 1000 psia. The Eagle-ford moderate total organic carbon (TOC) 3.83% attained fully hydrogen-wet (contact angle 99.9°) intermediate-wet condition 89.7°) psi 200 respectively. Likewise, Wolf-camp TOC (0.30%) weakly water-wet conditions, 58.8° 62.9°, maximum height that can securely trapped by approximately 325 meters merely 100 shale. Results study will aid in assessment capacity organic-rich (adsorption trapping), well evaluation sealing potentials storage.

Language: Английский

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Relative Permeability of Hydrogen and Aqueous Brines in Sandstones and Carbonates at Reservoir Conditions

Geophysical Research Letters, Journal Year: 2022, Volume and Issue: 49(12)

Published: June 19, 2022

Abstract Geological hydrogen storage in depleted gas fields represents a new technology to mitigate climate change. It comes with several research gaps, around recovery, including the flow behavior of porous media. Here, we provide first‐published comprehensive experimental study unsteady state drainage relative permeability curves H 2 ‐Brine, on two different types sandstones and carbonate rock. We investigate effect pressure, brine salinity, rock type compare it that CH 4 N at high‐pressure high‐temperature conditions representative potential geological sites. Finally, use history matching method for modeling using measured data within experiments. Our results suggest nitrogen can be used as proxy carry out multiphase fluid experiments, fundamental constitutive relationships necessary large‐scale simulations storage.

Language: Английский

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Underground hydrogen storage: A UK perspective

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 189, P. 114001 - 114001

Published: Nov. 8, 2023

Hydrogen is anticipated to play a key role in global decarbonization and within the UK's pathway achieving net zero targets. However, as production of hydrogen expands line with government strategies concern where this will be stored for later use. This study assesses different large-scale storage options geological structures available UK addresses surrounding uncertainties moving towards establishing economy. Currently, salt caverns look most favourable option, considering their proven experience hydrogen, especially high purity natural sealing properties, low cushion gas requirement charge discharge rates. geographical availability can act major constraint. Additionally, substantial increase number new necessary meet demand. Salt have greater applicability good short-term solution, however, porous media, such depleted hydrocarbon reservoirs saline aquifers, seen long-term strategic solution energy demand achieve security. Porous media solutions are estimated capacities which far exceed projected Depleted fields generally been well explored prior extraction. Although many aquifers offshore UK, characterizations still required identify right candidates storage. advantages over make them favoured option after caverns.

Language: Английский

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Socio-technical barriers to domestic hydrogen futures: Repurposing pipelines, policies, and public perceptions

Applied Energy, Journal Year: 2023, Volume and Issue: 336, P. 120850 - 120850

Published: Feb. 22, 2023

The feasibility of the global energy transition may rest on ability nations to harness hydrogen's potential for cross-sectoral decarbonization. In countries historically reliant natural gas domestic heating and cooking such as UK, hydrogen prove critical meeting net-zero targets strengthening security. response, UK government is targeting industrial decarbonization via hydrogen, with parallel interest in deploying hydrogen-fueled appliances businesses homes. However, prospective futures, especially transition, face multiple barriers which reflect dynamics achieving economies scale social acceptance. Addressing these challenges calls a deep understanding socio-technical factors across different scales economy. this paper develops systems framework overcoming applied context. demonstrates that future strategies should account interactions between political, techno-economic, technical, market, dimensions transition. techno-economic feasibility, right policies will be needed create an even playing field green technologies, while also supporting stakeholder symbiosis consumer buy-in. Future studies grapple how effective repurposing pipelines, policies, public perceptions can aligned accelerate development economy, maximum net benefits society environment.

Language: Английский

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A systematic and critical review of green hydrogen economy in India

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 48(81), P. 31425 - 31442

Published: May 12, 2023

Language: Английский

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A review on underground gas storage systems: Natural gas, hydrogen and carbon sequestration

Energy Reports, Journal Year: 2023, Volume and Issue: 9, P. 6251 - 6266

Published: June 7, 2023

The concept of underground gas storage is based on the natural capacity geological formations such as aquifers, depleted oil and reservoirs, salt caverns to store gases. Underground systems can be used inject (NG) or hydrogen, which withdrawn for transport end-users use in industrial processes. Geological additionally securely contain harmful gases, carbon dioxide, deep underground, by means capture sequestration technologies. This paper defines discusses storage, highlighting commercial pilot projects behavior different gases (i.e., CH4, H2, CO2) when stored well associated modeling investigations. For NG/H2 maintenance optimal subsurface conditions efficient necessitates a cushion gas. Cushion injected before injection working (NG/H2). varies type injected. NG H2 operate similarly. However, compared several challenges could faced during due its low molecular mass. widely recognized utilized reference systems. Furthermore, this briefly underground. Most reported studies investigated operating mixture. mixture was studied explore how it affect recovered quality from reservoir. shown influence capacity. By understanding studying system technologies, future directions better management successful operation are thereby highlighted.

Language: Английский

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Impact of experimentally measured relative permeability hysteresis on reservoir-scale performance of underground hydrogen storage (UHS)

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 48(36), P. 13527 - 13542

Published: Jan. 9, 2023

Underground Hydrogen Storage (UHS) is an emerging large-scale energy storage technology. Researchers are investigating its feasibility and performance, including injectivity, productivity, capacity through numerical simulations. However, several ad-hoc relative permeability capillary pressure functions have been used in the literature, with no direct link to underlying physics of hydrogen production process. Recent measurements for hydrogen-brine system show very low strong liquid phase hysteresis, different what has observed other fluid systems same rock type. This raises concern as extend existing studies literature able reliably quantify potential projects. In this study, we investigate how experimentally measured hysteresis affects performance UHS projects reservoir Relative data during a hydrogen-water core-flooding experiment within ADMIRE project design model. Next, simulation generic braided-fluvial water-gas performed using A assessment carried out scenarios drainage curves, model coefficients, injection/production rates. Our results that both gas play important role irrespective rate. Ignoring may cause up 338% uncertainty on cumulative production, it negative effects injectivity productivity due resulting limited variation range saturation cyclic operations. contrast, resolves issue some extent by improving displacement phase. Finally, implementing curves from will terms 141% underestimation production. These observations illustrate importance characteristic assessing performances.

Language: Английский

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