Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Sarafraz, M.M.; Christo, Farid; Tran, Nam Nghiep; Fulcheri, Laurent; Hessel, Volker

doi:10.1016/j.enconman.2022.115413

Cited by 8 publications

(8 citation statements)

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“…Finally, in ref 22, utilization of plasma solely as heat source in a chemical looping process for CO 2 reduction in the presence of steam was also theoretically studied. 22 A highly energetic, nanosecond repetitively pulsed (NRP) plasma is used to activate CO 2 in the gas phase (Figure 1B). By applying steep and short voltage pulses, CO 2 is split via electron-impact reactions at very high conversions in the plasma streamers and their immediate vicinity.…”

Section: Comentioning

confidence: 99%

“…Chemical looping assisted by plasma has recently been employed for chemistries other than CO 2 splitting, i.e., methane partial oxidation , and dry methane reforming. , In these references, dielectric barrier discharges (DBD) were coupled with reactive/catalytic materials that served as oxygen donors rather than oxygen scavengers as in this work. Finally, in ref , utilization of plasma solely as heat source in a chemical looping process for CO 2 reduction in the presence of steam was also theoretically studied …”

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confidence: 99%

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Exceeding Equilibrium CO₂ Conversion by Plasma-Assisted Chemical Looping

et al. 2022

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We propose and demonstrate an integrated electrified plasma-assisted chemical looping (PACL) process that yields supra-equilibrium CO 2 conversions unattainable with conventional catalysis at temperatures ≪3000 K. CO 2 is first dissociated inside plasma into CO/O at supra-equilibrium conversions (up to 60%) at a bulk gas temperature of 773 K and a 403 kJ/mol energy cost. Supra-equilibrium CO 2 conversions (29% on average) are achieved at the reactor outlet by placing a nanostructured CeO 2 /Fe 2 O 3 oxygen scavenger, prereduced by H 2 plasma, downstream of the plasma zone, to capture produced oxygen species and suppress CO/O recombination. Without plasma-material synergy, such an average CO 2 conversion can only be attained at temperatures ≥ 2775 K, according to chemical equilibrium calculations. This concept of plasma-assisted chemical looping allows reaching 3-fold higher conversions than state-of-the-art plasma technologies.

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Section: Comentioning

confidence: 99%

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confidence: 99%

Exceeding Equilibrium CO₂ Conversion by Plasma-Assisted Chemical Looping

et al. 2022

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“…11,44,65,66 Synergies with DBD plasma have been postulated in both steps of a plasma chemical looping process (Figure 4a), as shown in the recent adoption of a Ni perovskite/ CeO 2 material in the reforming of a CH 4 −CO 2 mixture and subsequent oxidative regeneration via water splitting, 65 shown in (Figures 4a and 4d). The advantages lie in improved performance of at least one of the looping steps (i.e., carrier oxidation and reduction), 44,66 or both, 65 via catalytic interaction of the OC with plasma, lowering temperature and energy requirements of the reactions. 44,65,66 The benefits of OCs in terms of O sequestration apply to highly energetic discharges, 11 where similarly to catalysts, material deactivation limits the scope of applications.…”

Section: Oxygen Carriers For Plasma Chemical Loopingmentioning

confidence: 97%

“…The advantages lie in improved performance of at least one of the looping steps (i.e., carrier oxidation and reduction), 44,66 or both, 65 via catalytic interaction of the OC with plasma, lowering temperature and energy requirements of the reactions. 44,65,66 The benefits of OCs in terms of O sequestration apply to highly energetic discharges, 11 where similarly to catalysts, material deactivation limits the scope of applications. A post-plasma solution entailing high energy plasma and physical interaction with advanced materials, has been developed and demonstrated by our group, 11 inspired by nanostructured adsorbent use in novel CO 2 utilization routes through the super-dry-reforming reaction.…”

Section: Oxygen Carriers For Plasma Chemical Loopingmentioning

confidence: 99%

“…16,21,40 While progress in this field lays the groundwork for a rational choice of materials in plasma−material combinations, there remains the need for systematic design procedures for case-specific determination of the optimal in-plasma/post-plasma material coupling. The main aspects to consider are material stability in plasma and single-pass conversion, 43 as well as energy efficiency of the total process (including possible thermal integration 44 ). The scalability of each technology should also be accounted for, bridging the gap between lab-scale plasma integration and largescale electrified reactors.…”

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Integrating Materials in Non-Thermal Plasma Reactors: Challenges and Opportunities

Rosa,

Cameli,

Stefanidis

et al. 2024

Acc. Mater. Res.

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Metrics & MoreArticle Recommendations CONSPECTUS: Electricity-driven chemical processes play a crucial role in mitigating the CO 2 footprint of the process industry. Non-thermal plasmas (NTP) hold significant potential for electrifying the chemical industry by activating molecules through electron-based mechanisms in the absence of thermal equilibrium. However, the broad application of NTPs is hampered by their general inability to direct energy toward a specific chemical pathway, limiting their effectiveness as a selective and scalable technology. Therefore, the integration of NTPs with catalytic materials in a single reactor assembly is being considered more and more to overcome this limitation.Recently, two multifunctional plasma concepts have emerged, demonstrated at small scales. The first concept is in-plasma catalysis (IPC), where a solid catalyst is directly exposed to the plasma discharge. The second concept is post-plasma catalysis (PPC), involving a conventional heterogeneous catalytic step following the plasma activation.Another option explores the combination of non-catalytic materials with plasma, leveraging their distinct physiochemical affinities with molecules for improved selectivity (e.g., membranes and adsorbents), through either in-plasma or post-plasma adoption. Despite these possibilities, the limited understanding of interactions between plasma and surface-adsorbed/permeated species, coupled with discharge-related catalysts and material deactivation, often restricts the design choice to post-plasma catalysis. To harness synergies, energy-efficient NTP technologies are essential. In this context, nanosecond-pulsed discharges (NPDs, also known as nanosecond repetitively pulsed, NRP) emerge as potentially disruptive solutions due to their activation of both electronic and thermal channels. This results in high energy efficiency, facilitating applications such as cleavage of C−C, C−O, and N−N bonds and providing sufficiently high temperatures for thermal integration with post-plasma materials. This integration can be tailored to the NPD product distribution, creating a synergy with conventional materials unique to NTPs and enhancing the overall process throughput.While promising, further advancements in materials science are necessary to maximize the interplay between high-energy bond breakage in plasma and the selectivity enhancement of integrated materials. Our research group has dedicated extensive efforts to the development of multifunctional two-step plasma reactors, with a particular focus on NPD. This has led to remarkable energy efficiency in non-oxidative coupling of methane (NOCM) and CO 2 splitting. Key applications involved a 3D-printed triply periodic minimal surface (TPMS) copper support with a Pd/Al 2 O 3 catalytic layer and a looping process with a CeO 2 /Fe 2 O 3 nanostructured scavenger. The potential of such reactors is vast, given the various applications for which conversion and selectivity currently pose limitations. As current designs are mostly heuristic and the literat...

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The combustion mechanism of aluminium in the steam/carbon dioxide mixed atmosphere

Qian,

Ji,

Wang

et al. 2024

Can J Chem Eng

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The ignition and combustion characteristics of aluminium (Al) in the steam/carbon dioxide (H2O/CO2) mixed atmosphere were calculated by using a close homogeneous catch reactor and premixed laminar flame‐speed of CHEMKIN‐PRO. The effects of initial reaction temperature and H2O/CO2 ratios on the system temperature, products, and ignition delay time were explored. The main reaction paths were analyzed by the temperature sensitivity. Al (l) entered the system with a pronounced phase transition and only one heating stage, but there are two heating stages in the Al (g) system. The reaction of Al in the H2O/CO2 mixed atmosphere has a positive effect on the ignition delay time of the system. The high contents of CO2 in the H2O/CO2 mixed atmosphere can increase the maximum temperature of system and decrease the ignition delay time. Temperature sensitivity analysis shows that AlO, Al2O, and AlOH are important intermediate products, and Al2O2 is the main substance that produces Al2O3. The dominant reaction path is Al → AlOH→AlO → Al2O → Al2O2 → Al2O3. In addition, when the initial temperature was 2300 K, the laminar flame velocity was calculated to reach 35.6 m/s.

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Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Cited by 8 publications

References 60 publications

Exceeding Equilibrium CO₂ Conversion by Plasma-Assisted Chemical Looping

Exceeding Equilibrium CO₂ Conversion by Plasma-Assisted Chemical Looping

Integrating Materials in Non-Thermal Plasma Reactors: Challenges and Opportunities

The combustion mechanism of aluminium in the steam/carbon dioxide mixed atmosphere

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Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Cited by 8 publications

References 60 publications

Exceeding Equilibrium CO2 Conversion by Plasma-Assisted Chemical Looping

Exceeding Equilibrium CO2 Conversion by Plasma-Assisted Chemical Looping

Integrating Materials in Non-Thermal Plasma Reactors: Challenges and Opportunities

The combustion mechanism of aluminium in the steam/carbon dioxide mixed atmosphere

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Product

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Exceeding Equilibrium CO₂ Conversion by Plasma-Assisted Chemical Looping

Exceeding Equilibrium CO₂ Conversion by Plasma-Assisted Chemical Looping