The fate of SOFC anodes under biomass producer gas contaminants

Din, Zia Ud; Zainal, Zulkarnain

doi:10.1016/j.rser.2016.10.012

Cited by 51 publications

(32 citation statements)

References 123 publications

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“…The H 2 S concentrations tested were 0.8 and 1.3 ppm(v) dry basis, while for HCl 3.4, 20, and 50 ppm(v) dry basis were tested. The H 2 S and HCl concentrations were selected based on SOFC tolerance limits found in literature . Acetic acid was selected as primary tar, since it is one of the most abundant light condensable species generated from updraft gasifiers .…”

Section: Methodsmentioning

confidence: 99%

Effect of H₂S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Cavalli

Bernardini

Carlo

et al. 2019

Energy Science & Engineering

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Integrated biomass gasifier solid oxide fuel cell systems are an alternative to fossil‐fuel‐based combined heat and power generators. However, biosyngas contaminants represent a bottleneck for small‐scale systems. In this work, we present the results of experiments on the effects of H2S, HCl, and acetic acid as model primary tar on Ni‐GDC SOFC. First, the effects of 17‐128 g/Nm3 dry basis acetic acid were studied. On a second cell, 0.8 and 1.3 ppm(v) H2S were added to the simulated biosyngas anode flow. After a full recovery, the cell was exposed to 42 g/Nm3 acetic acid and 0.8 ppm(v) H2S. On a third cell, 3.4, 20, and 50 ppm(v) HCl were tested and, after a recovery period, 42 g/Nm3 acetic acid and HCl were added. Even 0.8 ppm(v) H2S caused an immediate voltage drop. H2S affected CH4 reforming and water‐gas shift reaction. Differently, even 50 ppm(v) HCl appeared not to significantly affect these reactions. Acetic acid increased the cell voltage but caused carbon deposition at the cell inlet. The voltage increase seemed not to be affected by H2S or HCl, and no acetic acid was measured at the cell outlet, indicating that these contaminants do not affect the primary tar conversion.

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Section: Methodsmentioning

confidence: 99%

Effect of H₂S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Cavalli

Bernardini

Carlo

et al. 2019

Energy Science & Engineering

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“…Hot/ dry gas cleaning improves the system efficiency avoiding steam condensation as assessed for the FDA case in an Ni/ YSZ ASC SOFC in [33]. Besides, literature suggests that cell degradation can be avoided with the expected tar concentrations for cells with Ni/GDC anode [4]. Summing up, hot/dry gas cleaned FBS gasifier product gases seem to be the most promising biomass gasification fuels for SOFCs.…”

Section: Cell Designmentioning

confidence: 99%

“…However, significantly more publications deal with cells based on Ni/YSZ anodes, possibly due to their better performance in electrochemically oxidizing hydrogen and being closer to a broad commercialization as claimed in [10,28]. But, as comprehensively reviewed in [4,29,30], cells with Ni/ GDC anode show a higher potential for the use with product gases from biomass gasification due to their higher tolerance against contaminants like H 2 S, HCl and tars in comparison to cells with Ni/YSZ anode. Moreover, this anode material is less prone to the formation of solid carbon deposits when fueled with carbonaceous gases, especially at a low SCR [31].…”

Section: Anode Materialsmentioning

confidence: 99%

“…4b. 4. The area specific resistance (ASR) at a current density i of 300 mA/cm 2 representing the sum of all losses within the cell according to Eq.…”

Section: The Ocv As Electric Potential Difference Between Anodementioning

confidence: 99%

“…Degradation can be caused by components of the derived product gas. Impurities like tars, dust, sulfur and chlorine compounds that can either act as catalyst poison or lead to depositions in the porous fuel electrode, both deteriorating SOFC performance and changing its microstructure [4][5][6][7][8]. SOFC operating conditions like temperature, electrical load, but especially the concentration of the main components of the employed fuel gas can also induce fuel electrode degradation, e.g., a low steamto-carbon-ratio (SCR) (see Eq.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of solid oxide fuel cell operation with synthetic biomass gasification product gases as a basis for enhancing its performance

Pongratz

Subotić

Schroettner

et al. 2020

Biomass Conv. Bioref.

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Solid oxide fuel cells represent a promising technology to increase the electrical efficiency of biomass-based combined-heat-power systems in comparison to state-of-the-art gas engines, additionally providing high temperature heat. To identify favorable fuel gas compositions for an efficient coupling with gasifiers at low degradation risk is of major importance to ensure stability, reliability, and durability of the systems used, thus increasing attractiveness of electricity production from biomass. Therefore, this study presents a comprehensive analysis on the influence of main gas components from biomass gasification on the performance and efficiency of a cell relevant for real application. An industrial-size electrolyte supported single cell with nickel/gadolinium-doped ceria anode was selected showing high potential for gasifier-solid oxide fuel cell systems. Beneficial gas component ratios enhancing the power output and electric efficiency are proposed based on the experimental study performed. Furthermore, the degradation stability of a SOFC fueled with a synthetic product gas representing steam gasification of woody biomass was investigated. After 500 h of operation under load at a steam-to-carbon ratio of 2.25 in the fuel gas, no performance or anode degradation could be detected.

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Multi‐Pathways for Sustainable Fuel Production from Biomass Using Zirconium‐Based Catalysts: A Comprehensive Review

Purnama,

Trisunaryanti,

Wijaya

et al. 2023

Energy Tech

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Numerous concerns, including environmental impact and public health issues, drive the urgent need to replace nonrenewable fossil fuels with renewable energy sources, with biomass emerging as a viable alternative globally. In this comprehensive review, the urgent need to transition from nonrenewable fossil fuels to renewable energy sources is addressed, focusing on biomass as a global alternative. It examines the role of zirconium‐based catalysts in converting biomass into biofuels and hydrogen. Various biomass extraction methods based on the thermochemical processes (pyrolysis, gasification, hydrothermal liquefaction, hydrocracking, and steam reforming) are explored, including their merits and limitations. Additionally, the properties of zirconium‐based catalysts and their catalytic efficiency in biomass conversion are assessed, highlighting the factors influencing their performance. In this literature review, the promising potential of zirconium‐based catalysts in enhancing the sustainability and efficiency of global biofuel production from biomass is revealed. It underscores the critical role of biomass as a renewable energy source and highlights the significance of zirconium‐based catalysts in advancing sustainable biofuel production. It offers insights into addressing environmental concerns, promoting public health, and supporting the global transition toward renewable energy solutions.

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The fate of SOFC anodes under biomass producer gas contaminants

Cited by 51 publications

References 123 publications

Effect of H₂S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Effect of H₂S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Investigation of solid oxide fuel cell operation with synthetic biomass gasification product gases as a basis for enhancing its performance

Multi‐Pathways for Sustainable Fuel Production from Biomass Using Zirconium‐Based Catalysts: A Comprehensive Review

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The fate of SOFC anodes under biomass producer gas contaminants

Cited by 51 publications

References 123 publications

Effect of H2S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Effect of H2S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Investigation of solid oxide fuel cell operation with synthetic biomass gasification product gases as a basis for enhancing its performance

Multi‐Pathways for Sustainable Fuel Production from Biomass Using Zirconium‐Based Catalysts: A Comprehensive Review

Contact Info

Product

Resources

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Effect of H₂S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar

Effect of H₂S and HCl on solid oxide fuel cells fed with simulated biosyngas containing primary tar