Reversible Operation using Carbonaceous Gasses of a 30-cell Solid Oxide Cell Stack

Activity: Talks and presentationsConference presentations

  • Other: , 12 Dec 201715 Dec 2017

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Søren Højgaard Jensen - Guest lecturer

Hendrik Langnickel - Guest lecturer

Nils Hintzen - Other

Ming Chen - Guest lecturer

Xiufu Sun - Guest lecturer

Anne Hauch - Guest lecturer

Giacomo Butera - Guest lecturer

Lasse Røngaard Clausen - Guest lecturer

Recent theoretical studies show that reversible
electrochemical conversion of H2O and CO2 to CH4 inside novel
pressurized solid oxide cells (SOCs) combined with subsurface
storage of the produced gasses can facilitate seasonal electricity
storage with a round-trip efficiency 70-80% and a storage cost
below 3 ¢/kWh. Here we show test results from a 30-cell SOC
stack operated with carbonaceous gasses at 18.7 bar at 700 °C in
both electrolysis and fuel cell mode. The GC data from the
electrolysis test results show 18% methane in the dry outlet gas,
i.e. substantial methane formation inside the SOC stack. Further
we observed degradation rates comparable to that of ambient
pressure operation with H2/H2O gas mixtures.
12 Dec 201715 Dec 2017

Event (Conference)

Title7th European Fuel Cell Piero Lunghi Conference
Date12/12/201716/12/2017
Website
CityNaples
CountryItaly
Degree of recognitionInternational event

    Keywords

  • SOC, Pressure, Effiency, Storage
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ID: 141011339