Key Challenges to the introduction of hydrogen—European stakeholder views

Seymour, Elaine; Murray, Luke; Fernandes, Rei

doi:10.1016/j.ijhydene.2008.01.042

Cited by 32 publications

(14 citation statements)

References 9 publications

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“…However, the utilization of hydrogen has been limited due to the practical engineering and economic limitations with respect to its generation and distribution 6 . In particular, the variety products from high temperature electrolysis can be used as feedstocks for chemical synthesis or converted into highly dense electric power; it would provide a means of storing renewable electricity in a convenient, high energy-density form.…”

Section: Introductionmentioning

confidence: 99%

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor

et al. 2015

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A-site ordered PrBaMn2O(5+δ) was investigated as a potential cathode for CO2 electrolysis using a La(0.9)Sr(0.1)Ga(0.8)Mg(0.2)O3 (LSGM) electrolyte. The A-site ordered layered double perovskite, PrBaMn2O(5+δ), was found to enhance electrocatalytic activity for CO2 reduction on the cathode side since it supports mixed valent transition metal cations such as Mn, which could provide high electrical conductivity and maintain a large oxygen vacancy content, contributing to fast oxygen ion diffusion. It was found that during the oxidation of the reduced PrBaMn2O(5+δ) (O5 phase) to PrBaMn2O(6-δ) (O6 phase), a reversible oxygen switchover in the lattice takes place. In addition, here the successful CO2 electrolysis was measured in LSGM electrolyte with this novel oxide electrode. It was found that this PrBaMn2O(5+δ), layered perovskite cathode exhibits a performance with a current density of 0.85 A cm(-2) at 1.5 V and 850 °C and the electrochemical properties were also evaluated by impedance spectroscopy.

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Section: Introductionmentioning

confidence: 99%

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor

et al. 2015

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“…In the development of a hydrogen economy, the connection between locations where hydrogen is produced and where they are desired for use is a topic of great concern [14]. This has been adjudged by stakeholders to be less problematic and worrisome over short to medium distances, but challenging in long-distance pipelines [15]. Nonetheless, hydrogen has been transported safely with pipelines since the 1930s [14,16] and as of 2016, an estimated 4542 km of pipeline networks for hydrogen transportation existed globally with over 50% of them spread across the U.S. [17].…”

Section: Pipeline Transportation Of Gasesmentioning

confidence: 99%

“…Hydrogen has been adjudged to be a low-carbon fuel and acclaimed to possess the potential of being a major player in the energy transition toward global decarbonisation as a replacement for natural gas [18][19][20]. This presents the challenge of transporting it from the point of production to the location of end-users like most energy resources [15]. In the U.S. alone, for instance, existing natural gas infrastructure stretches up to three million miles of pipeline networks "including mainline and other pipes transport linking production and storage facilities with customers" [18].…”

Section: Hydrogen Pipelines: a Case For Adopting Existing Natural Gas Pipelinesmentioning

confidence: 99%

An Investigation into the Volumetric Flow Rate Requirement of Hydrogen Transportation in Existing Natural Gas Pipelines and Its Safety Implications

Abbas

Hassani

Burby

et al. 2021

Gases

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As an alternative to the construction of new infrastructure, repurposing existing natural gas pipelines for hydrogen transportation has been identified as a low-cost strategy for substituting natural gas with hydrogen in the wake of the energy transition. In line with that, a 342 km, 36″ natural gas pipeline was used in this study to simulate some technical implications of delivering the same amount of energy with different blends of natural gas and hydrogen, and with 100% hydrogen. Preliminary findings from the study confirmed that a three-fold increase in volumetric flow rate would be required of hydrogen to deliver an equivalent amount of energy as natural gas. The effects of flowing hydrogen at this rate in an existing natural gas pipeline on two flow parameters (the compressibility factor and the velocity gradient) which are crucial to the safety of the pipeline were investigated. The compressibility factor behaviour revealed the presence of a wide range of values as the proportions of hydrogen and natural gas in the blends changed, signifying disparate flow behaviours and consequent varying flow challenges. The velocity profiles showed that hydrogen can be transported in natural gas pipelines via blending with natural gas by up to 40% of hydrogen in the blend without exceeding the erosional velocity limits of the pipeline. However, when the proportion of hydrogen reached 60%, the erosional velocity limit was reached at 290 km, so that beyond this distance, the pipeline would be subject to internal erosion. The use of compressor stations was shown to be effective in remedying this challenge. This study provides more insights into the volumetric and safety considerations of adopting existing natural gas pipelines for the transportation of hydrogen and blends of hydrogen and natural gas.

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“…However, with many merits, few demerits also associated with hydrogen as an energy source such as the cost and problems associated with its production, storage and transport difficulties, etc. [40] . Thus, researchers focus on solving these problems by devising disparate technologies, methodologies, and pathways to produce, store, and transport hydrogen.…”

Section: Introductionmentioning

confidence: 99%

A review on recent advances in hydrogen energy, fuel cell, biofuel and fuel refining via ultrasound process intensification

Zore

Yedire

Pandi

et al. 2021

Ultrasonics Sonochemistry

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Highlights A detailed review of ultrasound enabled mechanism and its disparate applications have been presented. Emphasis is made on the sonochemical routes for hydrogen production and their advantages. Recent research studies on the synthesis of materials for hydrogen storage have been reported. Sonochemistry relevance in the fuel cell, biofuel technology and fuel refining have been discussed.

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Key Challenges to the introduction of hydrogen—European stakeholder views

Cited by 32 publications

References 9 publications

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor

An Investigation into the Volumetric Flow Rate Requirement of Hydrogen Transportation in Existing Natural Gas Pipelines and Its Safety Implications

A review on recent advances in hydrogen energy, fuel cell, biofuel and fuel refining via ultrasound process intensification

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Key Challenges to the introduction of hydrogen—European stakeholder views

Cited by 32 publications

References 9 publications

Oxygen deficient layered double perovskite as an active cathode for CO2 electrolysis using a solid oxide conductor

Oxygen deficient layered double perovskite as an active cathode for CO2 electrolysis using a solid oxide conductor

An Investigation into the Volumetric Flow Rate Requirement of Hydrogen Transportation in Existing Natural Gas Pipelines and Its Safety Implications

A review on recent advances in hydrogen energy, fuel cell, biofuel and fuel refining via ultrasound process intensification

Contact Info

Product

Resources

About

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor