Performance characterization and modelling of syngas-fed SOFCs (solid oxide fuel cells) varying fuel composition

Baldinelli, Arianna; Barelli, Linda

doi:10.1016/j.energy.2015.07.126

Cited by 57 publications

(31 citation statements)

References 43 publications

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“…There has been an increasing interest in the production of synthesis gas through the catalytic partial oxidation of methane [1,2], due to its potential applications in many fields such as fuel cells [3,4] and gas turbines [5,6]. Currently, the primary techniques used in industry to produce synthesis gas from methane are steam reforming [7,8], autothermal reforming [9], and partial oxidation [7].…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Computational Fluid Dynamics Modeling of the Catalytic Partial Oxidation of Methane in Microchannel Reactors for Synthesis Gas Production

Chen

Song

2018

Processes

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This paper addresses the issues related to the favorable operating conditions for the small-scale production of synthesis gas from the catalytic partial oxidation of methane over rhodium. Numerical simulations were performed by means of computational fluid dynamics to explore the key factors influencing the yield of synthesis gas. The effect of mixture composition, pressure, preheating temperature, and reactor dimension was evaluated to identify conditions that favor a high yield of synthesis gas. The relative importance of heterogeneous and homogenous reaction pathways in determining the distribution of reaction products was investigated. The results indicated that there is competition between the partial and total oxidation reactions occurring in the system, which is responsible for the distribution of reaction products. The contribution of heterogeneous and homogeneous reaction pathways depends upon process conditions. The temperature and pressure play an important role in determining the fuel conversion and the synthesis gas yield. Undesired homogeneous reactions are favored in large reactors, and at high temperatures and pressures, whereas desired heterogeneous reactions are favored in small reactors, and at low temperatures and pressures. At atmospheric pressure, the selectivity to synthesis gas is higher than 98% at preheating temperatures above 900 K when oxygen is used as the oxidant. At pressures below 1.0 MPa, alteration of the dimension in the range of 0.3 and 1.5 mm does not result in significant difference in reactor performance, if made at constant inlet flow velocities. Air shows great promise as the oxidant, especially at industrially relevant pressure 3.0 MPa, thereby effectively inhibiting the initiation of undesired homogeneous reactions.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Computational Fluid Dynamics Modeling of the Catalytic Partial Oxidation of Methane in Microchannel Reactors for Synthesis Gas Production

Chen

Song

2018

Processes

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“…Fuel cells have attracted intense research activity due to ever-increasing environmental issues and the impending depletion of fossil fuels. [1][2][3][4][5][6][7] Low temperature fuel cell types, including direct methanol fuel cells (DMFCs) and direct formic acid fuel cells (DFAFCs), present unique properties, such as low operating temperatures and relatively high energy densities. As such, these fuel cell types hold great promise as potential alternative power sources for portable electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Branched PdAu nanowires with superior electrocatalytic formic acid oxidation activities

2017

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“…Analyses of electrochemical impedance spectroscopy (EIS) measurements identified performance losses as a result of higher activation polarization and diffusion losses in comparison to experiments using H 2 as fuel [26,27]. The most comprehensive study on the influence of varying syngas mixtures containing H 2 , H 2 O, CO, CO 2 , CH 4 , and N 2 on the current-voltage correlation of an anode supported button cell with Ni/YSZ anode was conducted by [28]. In that study, dilution effects as well as the influence of the fuel concentration on the cell characteristics were experimentally determined.…”

Section: Sofc Operation With Gas Components From a Product Gas: A Reviewmentioning

confidence: 99%

“…The literature review showed that in general cells with Ni/GDC or Ni/YSZ based anode have been experimentally studied in the past for the use with product gases relevant for biomass gasification. 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.…”

Section: Anode Materialsmentioning

confidence: 99%

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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Performance characterization and modelling of syngas-fed SOFCs (solid oxide fuel cells) varying fuel composition

Cited by 57 publications

References 43 publications

RETRACTED: Computational Fluid Dynamics Modeling of the Catalytic Partial Oxidation of Methane in Microchannel Reactors for Synthesis Gas Production

RETRACTED: Computational Fluid Dynamics Modeling of the Catalytic Partial Oxidation of Methane in Microchannel Reactors for Synthesis Gas Production

Branched PdAu nanowires with superior electrocatalytic formic acid oxidation activities

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

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