Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 45, Issue 36, Pages 18321-18330Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.02.226
Keywords
Biochar; Pruned apple branch; Steam gasification; Fixed-bed reactor; Hydrogen rich gas
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Funding
- Aomori City Government, Hirosaki University Fund, Japan
- National Natural Science Foundation of China [U1710101]
- Monbusho Scholarship
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In this study, the gas production behavior from the steam gasification of the biochar derived from the pruned apple brunch was investigated using a fixed-bed reactor. The optimal biochar obtained at the pyrolysis temperature of 550 degrees C was gasified under different operating conditions for the hydrogen rich gas production. The experimental results indicated that high reaction temperature and high water flow rate were both beneficial to the hydrogen gas yield, but excess steam had a negative impact contrarily. Besides, the small size particles (0.5-1.0 mm) showed better performance in the hydrogen gas production at the low water flow rates (0.05-0.20 g/min); while the large size particles (1.0-2.8 mm) showed better performance at the high water flow rates (0.25-0.30 g/min). The suitable operating conditions for the gasification of the biochar were determined as the reaction temperature of 850 degrees C, water flow rate of 0.25 g/min, and particle size of 1.0-2.8 mm. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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