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How it works: The oxygen is dissociated at the cathode in O 2-

Proton Transfer Reaction-Mass Spectrometry (PTR-MS) as a rapid online tool for biogas VOCs monitoring in support of the development of Solid Oxide Fuel Cells (SOFCs).

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How it works: The oxygen is dissociated at the cathode in O 2-

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  1. Proton Transfer Reaction-Mass Spectrometry (PTR-MS) as a rapid online tool for biogas VOCs monitoring in support of the development of Solid Oxide Fuel Cells (SOFCs) PTR-MS is used to monitor trace level of Volatile Organic Compounds from a biogas digester plant coupled with an adsorption filter system in order to guarantee ppb/ppm(v) level at the fuel SOFC stack energy generator inlet.

  2. Innovative biogas application Solid Oxide Fuel Cell is an high temperature ceramic based energy generator able to exploit the electrochemical reactions of several fuel and air. How it works: • The oxygen is dissociated at the cathode in O2- • O2- flows through the dense electrolyte to the anode side • At the anode compartment the electrochemical reaction is completed with the formation of water and electrons flux. • Pro/Cons SOFC: • Fuel with CO2content >5% (limit for InternalCombustion Engine) • thermal+ electricalintegration(eff. 70-85% - 5-20kWel) • Stable performance (<1% 1000h) 8YSZ-LSM 8YSZ NiO-8YSZ • VOCs (~1-10ppmv) detrimental for anode • Costlymaterial and complex design

  3. Results VOCsmonitoring from digester VOCsmonitoring from filtersection Co-vaporadsorption Sulfuradsorption I.phase II.phase III.phase Biologicalphaseidentification

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