Reforming performances for the double-walled reactor tubes with Na2CO3/MgO composite thermal storage was examined by an intermittent heating. The intermittent heating of the reactor tubes is composed of the heat-discharge (or cooling) mode and the subsequent heating mode. The heat-discharging mode simulates a fluctuating insolation for cloud passages. The heating mode simulates a heating of reactor due to concentrated solar radiation by using an electric furnace. The internal tube of the reactor was packed with the 2wt%Ru/Al2O3 catalyst balls while the thermal storage materials were filled in the annular region of the reactor tubes. The reactor was heated up to 920°C in the cylindrical electric furnace and the CH4/CO2 mixture was fed into the internal catalyst tube at gas hourly space velocity (GHSV) of 12500 h−1. Through the cooling mode and the subsequent heating mode, temperature variations of reactor tubes, catalyst and composite material, H2/CO ratio variations of effluent gas from the reactor, higher heating value (HHV) power of reformed gas were respectively examined for the double-walled reactor tubes and a single-wall reactor tube without the thermal storage.
- Advanced Energy Systems Division and Solar Energy Division
Molten-Salt Tubular Absorber/Reformer (MoSTAR) Project: Reforming Performance of Reactor Tubes During Intermittent Heating
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Gokon, N, Kodama, T, Yamashita, S, Hatamachi, T, & Seo, T. "Molten-Salt Tubular Absorber/Reformer (MoSTAR) Project: Reforming Performance of Reactor Tubes During Intermittent Heating." Proceedings of the ASME 2010 4th International Conference on Energy Sustainability. ASME 2010 4th International Conference on Energy Sustainability, Volume 2. Phoenix, Arizona, USA. May 17–22, 2010. pp. 105-113. ASME. https://doi.org/10.1115/ES2010-90114
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