From biomass to electricity through integrated gasification/SOFC system-optimization and energy balance

Athanasiou, C.; Coutelieris, Frank A.; Vakouftsi, E.; Skoulou, Vasiliki; Antonakou, Eleni V.; Marnellos, George E.; Zabaniotou, Α.

doi:10.1016/j.ijhydene.2006.06.048

Cited by 92 publications

(36 citation statements)

References 15 publications

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“…Among the different types of fuel cells, solid-oxide fuel cells (SOFCs) are considered as the most promising for an integrated biomass gasification and fuel cell system, due to their flexibility for different fuels and greater tolerance toward contaminants. 7,8 Although the suitability of proton-exchangemembrane fuel cells (PEMFCs) to this integrated system has been experimentally and numerically confirmed, 911 purifica-tion processes that involve a watergas shift reactor and a preferential oxidation reactor are required to reduce the concentration of CO in the biogas to parts per million levels for subsequent fuel cell operation. To overcome this obstacle, new attempts have been made to use cellulosic resources directly as fuels for PEMFCs or anion-exchange-membrane fuel cells, so that the gasification process can be eliminated from the integrated system.…”

Section: Introductionmentioning

confidence: 99%

High Performance Anode for Direct Cellulosic Biomass Fuel Cells Operating at Intermediate Temperatures

Hibino

Kobayashi

et al. 2017

Bulletin of the Chemical Society of Japan

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Cellulosic biomass resources have considerable potential as a renewable energy source that can be used for the cogeneration of electricity and heat. The utilization of these resources generally requires three major systematic processes: gasification, gas processing, and gas utilization. If a power generator could operate using wood resources directly as fuels, then this system could be significantly simplified, thereby reducing initial equipment cost and enhancing application flexibility. An intermediate-temperature fuel cell could possibly realize such an operation; however, the fuel-cell characteristics, especially the catalytic activity of the Pt/C anode, are not sufficient at present. In this study, we attempted to improve the anode activity by alloying Pt with other metals, followed by optimization of the alloy in terms of its atomic ratio and content. The resulting PtFe/C anode yielded higher power densities (3742 mW cm ¹2 ) and energy densities (125169 Wh kg ¹1) at 250°C for fuels composed of cypress, tissue paper, and cotton, compared to those obtained using the Pt/C anode, despite its smaller Pt loading.

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Section: Introductionmentioning

confidence: 99%

High Performance Anode for Direct Cellulosic Biomass Fuel Cells Operating at Intermediate Temperatures

Hibino

Kobayashi

et al. 2017

Bulletin of the Chemical Society of Japan

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“…Electrical efficiency of the system was calculated as 45.8%. In the paper by Athanasiou et al [8], integrated SOFC, steam turbine, and gasifier system was studied in terms of thermodynamics. The electrical efficiency of the system was found to be 43.3%.…”

Section: Introductionmentioning

confidence: 99%

Effect of gasification agent on the performance of solid oxide fuel cell and biomass gasification systems

Çolpan

Hamdullahpur

Dinçer

et al. 2010

International Journal of Hydrogen Energy

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“…Because of the typical for fuel cell separation of the exhaust gases (on the anode side residual fuel gas, on the cathode side depleted air), it is possible to use the residual fuel for the additional electric power generation (e.g. in a gas turbine) [1]. Alternatively, through the burning of residual fuel, it is possible to generate additional heat for the purpose of: a) thermal integration, b) production of domestic hot water, c) additional electricity generation (ORC, Stirling engine).…”

Section: Introductionmentioning

confidence: 99%

“…It is a result of the thermodynamics and kinetics processes on the anode surface in the presence of syngas. The processes of carbon deposition were the subject of a number of experimental and thermodynamic analyses [1].…”

Section: Introductionmentioning

confidence: 99%

Solid Oxide Fuel Cells coupled with a biomass gasification unit

2016

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Abstract.A possibility of fuelling a solid oxide fuel cell stack (SOFC) with biomass fuels can be realized by coupling a SOFC system with a self-standing gasification unit. Such a solution enables multi-fuel operation, elasticity of the system as well as the increase of the efficiency of small-scale biomass-to-electricity conversion units. A system of this type, consisting of biomass gasification unit, gas purification unit, SOFC stack, anode off-gas afterburner and peripherals was constructed and operated successfully. During the process, biomass fuel (wood chips) was gasified with air as gasification agent. The gasifier was capable of converting up to 30 kW of fuel to syngas with efficiencies up to 75%. Syngas leaving the gasification unit is delivered to a medium temperature adsorber for sulphur compounds removal. Steam is added to the purified fuel to maintain steam to carbon ratio higher than 2. The syngas then is passed to a SOFC stack through a fuel preheater. In such a configuration it was possible to operate a commercial 1.3 kW stack within its working regime. Conducted tests confirmed successful operation of a SOFC stack fuelled by biomass-sourced syngas.

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From biomass to electricity through integrated gasification/SOFC system-optimization and energy balance

Cited by 92 publications

References 15 publications

High Performance Anode for Direct Cellulosic Biomass Fuel Cells Operating at Intermediate Temperatures

High Performance Anode for Direct Cellulosic Biomass Fuel Cells Operating at Intermediate Temperatures

Effect of gasification agent on the performance of solid oxide fuel cell and biomass gasification systems

Solid Oxide Fuel Cells coupled with a biomass gasification unit

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