Scaling up syngas production with controllable H2/CO ratio in a highly efficient, compact, and durable solid oxide coelectrolysis cell unit-bundle

Lee, Dong Hoon; Mehran, Muhammad Taqi; Kim, Jonghwan; Kim, Sangcho; Lee, Seungbok; Song, Rak Hyun; Ko, Eun Yong; Hong, Jong‐Eun; Huh, Joo Youl; Lim, Tak‐Hyoung

doi:10.1016/j.apenergy.2019.114036

Cited by 14 publications

(18 citation statements)

References 59 publications

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“…Starting from the research framework, it is important to analyze what type of electrolyzers could provide hydrogen for the methanation step on a large-scale. While solidoxide electrolysis (SOEL) is under development for commercialization [46], alkaline electrolysis (AEL) and polymer electrolyte membrane electrolysis (PEMEL) have been implemented in large P2M facilities [14,47,48]. For example, the Audi e-Gas plant has alkaline electrolyzers (6 MW el ), while the STORE&GO demonstration site at Solothurn has PEM electrolyzers (700 kW el ) [49].…”

Section: Focal Solution and Its Main Characteristicsmentioning

confidence: 99%

Disruption Potential Assessment of the Power-to-Methane Technology

2021

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Power-to-methane (P2M) technology is expected to have a great impact on the future of the global energy sector. Despite the growing amount of related research, its potential disruptive impact has not been assessed yet. This could significantly influence investment decisions regarding the implementation of the P2M technology. Based on a two-year-long empirical research, the paper focuses on exploring the P2M technology deployment potential in different commercial environments. Results are interpreted within the theoretical framework of disruptiveness. It is concluded that P2M has unique attributes because of renewable gas production, grid balancing, and combined long-term energy storage with decarbonization, which represent substantial innovation. Nevertheless, empirical data suggest that the largest P2M plants can be deployed at industrial facilities where CO2 can be sourced from flue gas. Therefore, a significant decrease of carbon capture technology related costs could enable the disruption potential of the P2M technology in the future, along with further growth of renewable energy production, decarbonization incentives, and significant support of the regulatory environment.

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Section: Focal Solution and Its Main Characteristicsmentioning

confidence: 99%

Disruption Potential Assessment of the Power-to-Methane Technology

2021

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“…269 For example, by increasing the air flow rate from 100 mL min −1 to 200 mL min −1 , Lee et al 161 increased the maximum coelectrolysis-current density from 2.31 × 10 −3 to 2.91 × 10 −3 A cm −2 at 1.6 V. However, it was reported that the prevailing high oxygen partial pressure (>2.12 × 10 4 Pa) generated during coelectrolysis could reduce the electrochemical performance of oxygen electrodes. 203 Lee et al 161 found that the overvoltage drastically increased at a flow rate of 200 compared to 100 mL min −1 . However, the increased overpotential was minimal at flow rates in the 200−300 mL min −1 range, and almost identical electrochemical properties were observed.…”

Section: Flow Ratementioning

confidence: 99%

“…Correspondingly, the CO molar fraction increases at high applied current densities, which decreases the syngas H 2 :CO ratio. 161,341 Compared with low steam levels, high steam levels in the inlet gas do not enhance the CO production with increasing applied current density. 86,230,339 In contrast, low-current operation enables both high efficiency and flexibility in the initial H 2 O:CO 2 inlet-gas ratio.…”

Section: Applied Voltage or Currentmentioning

confidence: 99%

Syngas Production from CO₂ and H₂O via Solid-Oxide Electrolyzer Cells: Fundamentals, Materials, Degradation, Operating Conditions, and Applications

Hou,

Jiang,

Wei

et al. 2024

Chem. Rev.

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Highly efficient coelectrolysis of CO 2 /H 2 O into syngas (a mixture of CO/ H 2 ), and subsequent syngas conversion to fuels and value-added chemicals, is one of the most promising alternatives to reach the corner of zero carbon strategy and renewable electricity storage. This research reviews the current state-of-the-art advancements in the coelectrolysis of CO 2 /H 2 O in solid oxide electrolyzer cells (SOECs) to produce the important syngas intermediate. The overviews of the latest research on the operating principles and thermodynamic and kinetic models are included for both oxygen-ion-and proton-conducting SOECs. The advanced materials that have recently been developed for both types of SOECs are summarized. It later elucidates the necessity and possibility of regulating the syngas ratios (H 2 :CO) via changing the operating conditions, including temperature, inlet gas composition, flow rate, applied voltage or current, and pressure. In addition, the sustainability and widespread application of SOEC technology for the conversion of syngas is highlighted. Finally, the challenges and the future research directions in this field are addressed. This review will appeal to scientists working on renewable-energy-conversion technologies, CO 2 utilization, and SOEC applications. The implementation of the technologies introduced in this review offers solutions to climate change and renewable-power-storage problems.

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“…From a technological aspect, these solutions have been extensively analyzed. In the P2H segment, scholars compared alkaline (AEL) and polymer electrolyte membrane (PEMEL) electrolysis regarding their operation in large scale, lifetime or flexibility [33][34][35][36][37][38][39] solid oxide (SOEL) electrolyzers [35,40,41] as well. In the P2M segment, CO 2 conversion efficiencies of biological and chemical methanation were evaluated several times [9,33,34,[42][43][44].…”

Section: Power-to-x and The Focal Technologies Of The Researchmentioning

confidence: 99%

Hydrogen Economy Development Opportunities by Inter-Organizational Digital Knowledge Networks

et al. 2021

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Innovative power-to-X (P2X) technologies, as a set of emerging new solutions, could play a crucial role in creating sustainable, carbon-neutral economies, such as the hydrogen economy. These technologies, however, are generally not yet implemented on a commercial scale. This research focuses on how innovative, digital inter-organizational knowledge networks of industry representatives and universities could contribute to the commercial implementation of P2X technologies and increase the pace of sustainable hydrogen-based development. The findings of an extended case study with a hybrid (qualitative–quantitative) methodology and a five-year time horizon, suggest the need for a digital knowledge platform, where universities and industry representatives add and combine their knowledge. In contrast with expectations, however, the empirical results show that academia would, not only be capable of supporting the exploration of new solutions, but foster the exploitation of more mature technologies as well. Similarly, large energy companies could also drive exploratory activities, not only exploitative ones. The findings highlight the possible central role of the “system builder” actor, who integrates exploitative-explorative learning and facilitates the formation of a (digital) innovation ecosystem. By exceeding the dominant techno-economic and environmental aspects, this research contributes to the literature by highlighting the applicability of network-based innovation management theory for hydrogen economy research.

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Scaling up syngas production with controllable H2/CO ratio in a highly efficient, compact, and durable solid oxide coelectrolysis cell unit-bundle

Cited by 14 publications

References 59 publications

Disruption Potential Assessment of the Power-to-Methane Technology

Disruption Potential Assessment of the Power-to-Methane Technology

Syngas Production from CO₂ and H₂O via Solid-Oxide Electrolyzer Cells: Fundamentals, Materials, Degradation, Operating Conditions, and Applications

Hydrogen Economy Development Opportunities by Inter-Organizational Digital Knowledge Networks

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Scaling up syngas production with controllable H2/CO ratio in a highly efficient, compact, and durable solid oxide coelectrolysis cell unit-bundle

Cited by 14 publications

References 59 publications

Disruption Potential Assessment of the Power-to-Methane Technology

Disruption Potential Assessment of the Power-to-Methane Technology

Syngas Production from CO2 and H2O via Solid-Oxide Electrolyzer Cells: Fundamentals, Materials, Degradation, Operating Conditions, and Applications

Hydrogen Economy Development Opportunities by Inter-Organizational Digital Knowledge Networks

Contact Info

Product

Resources

About

Syngas Production from CO₂ and H₂O via Solid-Oxide Electrolyzer Cells: Fundamentals, Materials, Degradation, Operating Conditions, and Applications