Structural and Thermodynamic Assessment of Ba and Ba/Mg Substituted SrFeO<sub>3−δ</sub> for “Low-Temperature” Chemical Looping Air Separation

Bektas, Hilal; Cai, Runxia; Brody, Leo; Li, Fanxing

doi:10.1021/acs.energyfuels.4c00859

Energy Fuels

2024

DOI: 10.1021/acs.energyfuels.4c00859

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Structural and Thermodynamic Assessment of Ba and Ba/Mg Substituted SrFeO_3−δ for “Low-Temperature” Chemical Looping Air Separation

Hilal Bektas,

Runxia Cai,

Leo Brody

et al.

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Cited by 2 publications

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Material Engineering Solutions toward Selective Redox Catalysts for Chemical-Looping-Based Olefin Production Schemes: A Review

Oing,

von Müller,

Donat

et al. 2024

Energy Fuels

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Chemical looping (CL) has emerged as a promising approach in the oxidative dehydrogenation (ODH) of light alkanes, offering an opportunity for significant reductions in emissions and energy consumption in the ethylene and propylene production industry. While high olefin yields are achievable via CL, the material requirements (e.g., electronic and geometric structures) that prevent the total conversion of alkanes to CO x are not clearly understood. This review aims to give a concise understanding of the nucleophilic oxygen species involved in the selective reaction pathways for olefin production as well as of the electrophilic oxygen species that promote an overoxidation to CO x products. It further introduces advanced characterization techniques such as X-ray photoelectron spectroscopy, Raman spectroscopy, electron paramagnetic resonance spectroscopy, and resonant inelastic X-ray scattering, which have been employed successfully in identifying such reactive oxygen species. To mitigate CO x formation and enhance olefin selectivity, material engineering solutions are discussed. Common techniques include doping of the bulk or surface and the deposition of functional coatings. In the context of energy consumption and CO 2 intensity, techno-economic assessments of CL-ODH systems have predicted energy savings of up to 80% compared to established olefin production processes such as steam cracking or dehydrogenation. Finally, although their practical application has been limited to date, the potential advantages of the use of fluidized bed reactors in CL-ODH are presented.

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Material Engineering Solutions toward Selective Redox Catalysts for Chemical-Looping-Based Olefin Production Schemes: A Review

Oing,

von Müller,

Donat

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

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2024 Pioneers in Energy Research: Juan Adánez

Zhao

2024

Energy Fuels

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is a research professor at the Instituto de Carboqui ́mica of the Spanish National Research Council (ICB−CSIC), and he has been selected as the 2024 PIER in the field of environmental and CO 2 issues for his pioneering and original contributions to the development of chemical looping technologies. 4 We are honored to have the opportunity to celebrate his outstanding contributions in this special issue (SI).Professor Juan Adańez obtained his bachelor's degree in chemical sciences in 1976 and received his Ph.D.

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Structural and Thermodynamic Assessment of Ba and Ba/Mg Substituted SrFeO_3−δ for “Low-Temperature” Chemical Looping Air Separation

Cited by 2 publications

References 59 publications

Material Engineering Solutions toward Selective Redox Catalysts for Chemical-Looping-Based Olefin Production Schemes: A Review

Material Engineering Solutions toward Selective Redox Catalysts for Chemical-Looping-Based Olefin Production Schemes: A Review

2024 Pioneers in Energy Research: Juan Adánez

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Structural and Thermodynamic Assessment of Ba and Ba/Mg Substituted SrFeO3−δ for “Low-Temperature” Chemical Looping Air Separation

Cited by 2 publications

References 59 publications

Material Engineering Solutions toward Selective Redox Catalysts for Chemical-Looping-Based Olefin Production Schemes: A Review

Material Engineering Solutions toward Selective Redox Catalysts for Chemical-Looping-Based Olefin Production Schemes: A Review

2024 Pioneers in Energy Research: Juan Adánez

Contact Info

Product

Resources

About

Structural and Thermodynamic Assessment of Ba and Ba/Mg Substituted SrFeO_3−δ for “Low-Temperature” Chemical Looping Air Separation