Hybridization of solid oxide electrolysis-based power-to-methane with oxyfuel combustion and carbon dioxide utilization for energy storage

Eveloy, Valérie

doi:10.1016/j.rser.2019.02.027

Cited by 43 publications

(15 citation statements)

References 75 publications

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“…The amount of CO2 that is emitted by this SNG is the same as that is required for its own formation [7]. To make the most of this technology, one can use it with oxy-fuel combustion, since it produces a pure stream of CO2 for the methanation, while electrolysis provides pure O2 for the oxy-fuel combustion [7][8][9][10]. The BF-BOF route consists of several processes: sintering, coke oven, blast furnace, basic oxygen furnace, and the final stage of casting and rolling.…”

Section: Introductionmentioning

confidence: 99%

CO2 Recycling in the Iron and Steel Industry via Power-to-Gas and Oxy-Fuel Combustion

et al. 2021

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The iron and steel industry is the largest energy-consuming sector in the world. It is responsible for emitting 4–5% of the total anthropogenic CO2. As an energy-intensive industry, it is essential that the iron and steel sector accomplishes important carbon emission reduction. Carbon capture is one of the most promising alternatives to achieve this aim. Moreover, if carbon utilization via power-to-gas is integrated with carbon capture, there could be a significant increase in the interest of this alternative in the iron and steel sector. This paper presents several simulations to integrate oxy-fuel processes and power-to-gas in a steel plant, and compares gas productions (coke oven gas, blast furnace gas, and blast oxygen furnace gas), energy requirements, and carbon reduction with a base case in order to obtain the technical feasibility of the proposals. Two different power-to-gas technology implementations were selected, together with the oxy blast furnace and the top gas recycling technologies. These integrations are based on three strategies: (i) converting the blast furnace (BF) process into an oxy-fuel process, (ii) recirculating blast furnace gas (BFG) back to the BF itself, and (iii) using a methanation process to generate CH4 and also introduce it to the BF. Applying these improvements to the steel industry, we achieved reductions in CO2 emissions of up to 8%, and reductions in coal fuel consumption of 12.8%. On the basis of the results, we are able to conclude that the energy required to achieve the above emission savings could be as low as 4.9 MJ/kg CO2 for the second implementation. These values highlight the importance of carrying out future research in the implementation of carbon capture and power-to-gas in the industrial sector.

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Section: Introductionmentioning

confidence: 99%

CO2 Recycling in the Iron and Steel Industry via Power-to-Gas and Oxy-Fuel Combustion

et al. 2021

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“…In addition, the efficiency of these systems could be optimized by symbiosis of industrial sectors and their waste streams, thus improving the consumption of resources and the investment in new equipment. Others synergies have been studied, e.g., PtG-oxyfuel using simulations of the combustion processes [48,49] and PtG-Electrochemical hybridization [50].…”

Section: Main Drivers and Barriersmentioning

confidence: 99%

Methodology for Dimensioning the Socio-Economic Impact of Power-to-Gas Technologies in a Circular Economy Scenario

et al. 2020

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Innovative and sustainable energy technologies are needed in the transition of energy toward a circular economy. Because of the use of renewable energy and carbon utilization, power-to-gas could be a cutting-edge technology that supports the circular model in future sustainable energy markets. However, this technology faces new technical and socio-economic challenges. The use of power-to-gas is limited because of barriers that limit the mobilization of investment capital. In addition, social and economic impacts on the territories in which these facilities are located are under study. In this context, the aims of this paper are: (i) To explore the determinants and barriers for power-to-gas technology to enhance the understanding of investment in innovative energy technologies; and (ii) to support effective policymaking and energy companies’ decision-making processes. This study defines and measures, from a circular economy perspective, the main impacts of the deployment of this technology on a territory in terms of volume of investment, employment generation, and CO2 capture. The study also provides a simplified methodology to contribute to the analysis of the use of power-to-gas. Finally, it improves the knowledge of the socio-economic impact of this cutting-edge technology for the transition of energy to a zero-emission scenario.

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“…The paper is closed by two important conclusions: First, the net power production with reduced or near-zero CO 2 emissions in the process is unfeasible only when very high-moisture/ash-con tent fuels are used, and the second, the proposed process can be utilised as an energy storage system (by assuming only the energy from renewable sources to be used in the process) and in that case, the electric energy storage efficiency is 13% notwithstanding the type of fuel been utilised. The high temperature electrolysis-based power-to-methane process and its integration with oxyfuel combustion to co-generate synthetic methane, heat and power are also presented in [71].…”

Section: Sustainability Issues In Industrial and Power Plants: Challementioning

confidence: 99%

Advanced visions and problem-solving strategies across energy water and environment systems

et al. 2020

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This editorial provides an overview of twenty scientific articles published in the special issue of Thermal Science. The papers were selected from among 601 contributions presented at the 14th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES 2019), held October 1-6, 2019 in the city of Dubrovnik, Croatia. The topics covered in the special issue include: Energy savings in the building sector; Advanced combustion techniques and fuels; Combined heat and mass transfer of fluid-flow; and Sustainability issues in industrial and power plants: challenges and viable solutions. The editorial also emphasised the papers recently published in the Special Issues of leading scientific journals dedicated to the series of SDEWES Conferences.

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Hybridization of solid oxide electrolysis-based power-to-methane with oxyfuel combustion and carbon dioxide utilization for energy storage

Cited by 43 publications

References 75 publications

CO2 Recycling in the Iron and Steel Industry via Power-to-Gas and Oxy-Fuel Combustion

CO2 Recycling in the Iron and Steel Industry via Power-to-Gas and Oxy-Fuel Combustion

Methodology for Dimensioning the Socio-Economic Impact of Power-to-Gas Technologies in a Circular Economy Scenario

Advanced visions and problem-solving strategies across energy water and environment systems

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