Upgrading syngas from wood gasification through steam reforming of tars over highly active Ni-perovskite catalysts at relatively low temperature

Jurado, Lole; Papaefthimiou, Vasiliki; Thomas, Sébastien; Roger, Anne-Cécile

doi:10.1016/j.apcatb.2021.120687

Cited by 25 publications

(41 citation statements)

References 52 publications

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“…Single or multi‐stage leaching could either lead to a recovery of perovskite‐based materials or single element fractions such as REE, which can later be used for SOC applications or comparable applications, such as perovskite‐based catalysts for wastewater treatment or biomass gasification. [ 76,77 ]…”

Section: Future Recycling Of Socsmentioning

confidence: 99%

“…Single or multi-stage leaching could either lead to a recovery of perovskite-based materials or single element fractions such as REE, which can later be used for SOC applications or comparable applications, such as perovskite-based catalysts for wastewater treatment or biomass gasification. [76,77] The preservation of the main fraction in ESC-type cells appears to be possible if the fuel electrode is also separated from the thick electrolyte layer. However, the preserved electrolyte fraction must have a high degree of purity, as contaminants (parts of the functional layers, i.e., the metallic nickel) would certainly lead to reduced performance, especially with regard to electronic leakage.…”

Section: Strategies For Ceramic Component Recyclingmentioning

confidence: 99%

“…For instance, Ni perovskite catalysts can be used in steam methane reforming applications. [76,80] Alternatively, element precipitation from the liquid can be considered to preserve critical raw materials such as La and Co, which are often contained in the air-side electrode and contact layer materials. Selective Co and REE recovery might be realized by solvent extraction or liquid-solid extraction.…”

Section: Strategies For Ceramic Component Recyclingmentioning

confidence: 99%

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Recycling Strategies for Solid Oxide Cells

Sarner

Schreiber

Menzler

et al. 2022

Advanced Energy Materials

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more than 70% of the global energy demand in the power generation, transport, and industrial heating sectors is covered by fossil fuels. [1] However, greenhouse gas (GHG) emissions are essentially associated with two major drawbacks: the scarcity of fossil fuel resources and the evidenced change in climate patterns. [2] In order to mitigate further GHG emissions, the European Union (EU) has committed itself to become CO 2neutral by 2050. [3] To achieve the envisaged energy transition from fossil fuels to renewable energy sources, efficient energy storage systems, are required. For longterm and high-volume storage, hydrogen as a chemical energy carrier seems to be the most reliable choice in this context. The upcoming expansion of hydrogen technologies is a key aspect of the implementation of climate protection policy, as demonstrated by several studies. [4] On an international scale, more than 30 countries have already launched their hydrogen strategies and roadmaps. [5] To produce hydrogen at scale electrolysis is seen as the most advanced technology. Currently, there are four major water electrolysis applications for generating green hydrogen, including proton exchange membranes (PEMs), alkaline water electrolysis (AWEs), alkaline anion exchange membranes (AEMs), and solid oxide cells (SOCs). [6] While PEMs, AWEs, and AEMs are known for their low operating temperatures (20-200 °C), SOCs are classified as high-temperature applications (500-1000 °C) that offer certain benefits. When the utilization of heat is taken into account, the energy efficiency of SOCs can reach more than 90%. [7] In addition, the operating mode can be either set to fuel cell (SOFC) or electrolysis cell (SOEC) in one unit. These are described as reversible SOCs (rSOCs). This special feature therefore makes SOCs easy to adapt to energy surpluses or deficiencies, depending on environment (e.g., whether the wind is blowing or the sun is shining; day/night) and on demand. The research on new SOC materials might also enable long-term operation at lower temperatures (≈ 500 °C), [8] as well as the co-electrolysis of H 2 O and CO 2 for syngas production, or even pure CO 2 -electrolysis on an industrial scale. [9] However, regardless of the type of electrolyzer being used, lifetime is limited. SOC aging processes such as voltage degradation, interdiffusion, foreign phase formation, oxidation or fracturing can result in reduced cell performance and in some instances lead to the complete failure of the system. [10,11] Until lately, SOC recycling-related topics have attracted little attention. As part of the EU-funded project HYTECHCYCLING (finished in 2019), initial proposals for recycling various hydrogen Alongside the generation of renewable power and its storage in batteries, hydrogen technologies are essential to enable a deep decarbonization of the energy system. These technologies include solid oxide cells (SOCs), which can be operated as electrolyzers to generate hydrogen or syngas and/or for power supply in fuel cell mode and demonstrate th...

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Section: Future Recycling Of Socsmentioning

confidence: 99%

Section: Strategies For Ceramic Component Recyclingmentioning

confidence: 99%

Section: Strategies For Ceramic Component Recyclingmentioning

confidence: 99%

See 1 more Smart Citation

Recycling Strategies for Solid Oxide Cells

Sarner

Schreiber

Menzler

et al. 2022

Advanced Energy Materials

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“…2,3,7,8 Two Ni-based catalysts using a perovskite (La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−d (LSCF)) as a support have been previously prepared for their nal use as secondary catalysts in a downdra xed-bed gasier. 9 The synthesis was conducted via wetness impregnation (Ni/LSCF) and sol-gel synthesis (Ni-LSCF). Aer reduction in a H 2 atmosphere, the two Ni/perovskite catalysts were tested in tar reforming reaction at 550 °C using a model ex-biomass gas composition and toluene as one of the model tar molecules.…”

Section: Introductionmentioning

confidence: 99%

“…10 Although the same toluene conversion was found for both catalysts, the Ni/LSCF was more prone to form coke deposits than Ni-LSCF due to the acidic character of its surface. 9 The impregnation with a small amount of Ru over Ni/ LSCF (RuNi/LSCF) was found to improve both its resistance to coke and its catalytic activity in toluene reforming. Certainly, highly active Ni-based catalysts in tar removal under real operational conditions were evidenced, which make them promising candidates as secondary catalysts in biomass gasication processes.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the catalytic performance of Ni based catalysts in toluene reforming at low temperature by structuring on SiC extrudates

Jurado¹,

Morales²,

Thomas³

et al. 2023

Sustainable Energy Fuels

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Recent Progress of Catalysts for Reforming of Biomass Tar/Tar Models at Low Temperatures – A Short Review

Tang

Cao

et al. 2023

ChemCatChem

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Catalytic tar reforming is considered as a promising technology to convert tar into useful syngas such as H2 and CO as well as chemicals such as benzene, toluene, and xylene (BTX). Up until now, few review works have reported the recent progress focusing on the catalyst design for low‐temperature reforming of biomass tar. Therefore, in this work, we focused on the design and preparation of tar cracking and reforming catalysts with high performances to achieve an efficient conversion of tar at temperatures lower than 700 °C. Char supported Ni or Co catalysts with high specific surface area, small metallic particle size and high dispersion are conductive to produce more amount of syngas. Moreover, HZSM‐5 and metal‐promoted zeolites are more suitable for high conversion of tar and selectivity of BTX due to the excellent mesopore structure, thermal stability and medium acidity. Based on those literatures, the adjustment of the catalyst‘s structure, the deactivation mechanism, and the reforming mechanism were also summarized and discussed. In addition, some futural insights were proposed in order to promote the catalyst‘s performance in terms of activity and stability, as well as reveal the clear tar reforming mechanism.

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Upgrading syngas from wood gasification through steam reforming of tars over highly active Ni-perovskite catalysts at relatively low temperature

Cited by 25 publications

References 52 publications

Recycling Strategies for Solid Oxide Cells

Recycling Strategies for Solid Oxide Cells

Enhancing the catalytic performance of Ni based catalysts in toluene reforming at low temperature by structuring on SiC extrudates

Recent Progress of Catalysts for Reforming of Biomass Tar/Tar Models at Low Temperatures – A Short Review

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