Syngas Production by Thermochemical Gasification of Carbonaceous Waste Materials in a 150 kW sub(th) Packed-Bed Solar Reactor
The solar thermochemical steam-based gasification of carbonaceous materials is investigated using concentrated solar energy as the source of the high-temperature process heat. Vis-a-vis conventional autothermal gasification, the solar-driven process delivers a higher syngas output of higher quality...
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Veröffentlicht in: | Energy & fuels 2013-08, Vol.27 (8), p.4770-4776-4770-4776 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The solar thermochemical steam-based gasification of carbonaceous materials is investigated using concentrated solar energy as the source of the high-temperature process heat. Vis-a-vis conventional autothermal gasification, the solar-driven process delivers a higher syngas output of higher quality and lower CO sub(2) intensity because no portion of the feedstock is combusted and its energy content is solar upgraded. The operation of a solar gasification pilot plant for a 150 kW sub(th) solar-radiative power input was experimentally demonstrated using a packed-bed solar reactor operated in batch mode. The experimentation was carried out in a solar tower. Six different carbonaceous waste feedstocks have been successfully processed: industrial sludge, fluff, tire chips, dried sewage sludge, low-rank coal, and sugar cane bagasse. The calorific value of the produced syngas was upgraded by a factor of up to 1.3. The solar-to-fuel energy-conversion efficiency, defined as the ratio of the heating value of the fuel produced to the solar and feedstock energy inputs, varied between 22 and 35%. |
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ISSN: | 0887-0624 1520-5029 |
DOI: | 10.1021/ef4008399 |