Methane steam reforming reaction in solid oxide fuel cells: Influence of electrochemical reaction and anode thickness

Fan, Limin; Mokhov, Anatoli; Saadabadi, S. Ali; Brandon, Nigel P.; Aravind, P.V.

doi:10.1016/j.jpowsour.2021.230276

Cited by 18 publications

(15 citation statements)

References 56 publications

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“…It shows that H 2 and CO have a significant contribution to power generation. Methane is utilized by steam reforming, which cannot be ignored 40,41 . However, there is not a high amount of CH 4 content, therefore, a less significant contribution from CH 4 .…”

Section: Resultsmentioning

confidence: 99%

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Feasibility analysis of Fischer‐Tropsch synthesis tail gas as a fuel for solid oxide fuel cells

Wei

Yue

Hou

et al. 2022

Intl J of Energy Research

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Summary The tail gas of Fischer‐Tropsch synthesis (FTS) contains unconverted syngas and gaseous hydrocarbons. It is usually treated at a high‐cost and low‐efficiency method, whereas it is a feasible fuel for solid oxide fuel cells (SOFCs). Herein, we evaluated the carbon deposition temperature of the FTS tail gas obtained at various reactor pressures. Thermodynamic calculation showed that the FTS tail gas could be used in SOFCs without the risk of carbon deposition. By adding 5% water, the initial non‐carbon deposition temperature was dropped from 830°C (without water co‐feeding) to 720°C. Under reforming, the syngas (H2/CO) ratio is about 2 when it reaches equilibrium states, which can be recycled back into the FTS process. Theoretically, a current of 6.5‐7.1 A per 100 mL FTS tail gas could be generated by the SOFC. This study demonstrates that it is promising to use the FTS tail gas as a carbon‐containing fuel for SOFCs. Highlights A new concept of the utilization of FTS tail gas as a fuel in a SOFC is developed. FTS tail gas can convert to syngas with H2/CO = 2 that can be recycled back into FTS. Co‐feeding water into FTS tail gas reduces the non‐carbon deposition temperature. Theoretical current densities proved the FTS tail gas is a promising fuel for SOFCs.

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Section: Resultsmentioning

confidence: 99%

“…Methane is utilized by steam reforming, which cannot be ignored. 40,41 However, there is not a high amount of CH 4 content, therefore, a less significant contribution from CH 4 . The high amount of water vapor is not recommended as the dilution effect after adding water vapor.…”

Section: Current Generationmentioning

confidence: 99%

Feasibility analysis of Fischer‐Tropsch synthesis tail gas as a fuel for solid oxide fuel cells

Wei

Yue

Hou

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

“…However, the direct operation of hydrocarbons in SOFCs can lead to carbon deposition on the anodes [60,66,71,80] and sulphur poisoning of the anodes, which are significant challenges when fuelling hydrocarbon fuels to SOFCs [80,81,126]. In addition, the influence of operating conditions such as the current density on the SOFC performance fuelled with hydrocarbon fuels is still not clear and needs further investigation [67,68,88,90]. The specific scientific and technical challenges are discussed in the following sub-sections.…”

Section: Scientific and Technical Challenges Of Methane Reforming In ...mentioning

confidence: 99%

“…The CH 4 reforming and electrochemical reactions in an electrochemical device will most likely interact and, thus, not proceed independently [67,68]. However, although great efforts in experimental investigations into methane reforming reaction have been conducted, the influence of the electrochemical reaction on the reforming reaction is rarely reported and often overlooked.…”

Section: Methane Reforming In An Electrochemical Devicementioning

confidence: 99%

“…The working condition of SOFCs influences the propensity to coke formation of methane reforming on Ni-base catalysts, and the carbon coking can be reduced by changing the current drawn from the cell [66]. In addition, the current density was found to impact the methane reforming reaction rate [67,68]. Therefore the reforming reaction rate can be altered by varying the current density.…”

Section: Introductionmentioning

confidence: 99%

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