Simulation of Chemical Looping Hydrogen Production Using Solid Fuel

Abstract:

Chemical looping hydrogen production (CLH) has become a promising technology for hydrogen production with inherent separation of carbon dioxide. This paper simulated the three reactors of CLH process of coal as solid fuel using Aspen Plus. The effects of temperature, oxygen carrier/coal ratio, steam/coal ratio, and the air/coal ratio on the gas composition in specific reactor were discussed. Simulation results showed that the temperature had a great effect on the reactor performance. The optimized OC/coal ratio in the OC/coal ratio in this paper was 19.1. The CO₂ fraction in the flue gas of FR reached 87.5% when the vapor was condensed at the temperature of 950 °C. The fraction of dry-based H₂ in the SR was almost 100% when the SR temperature was 815 °C and the steam/coal ratio was 18.8. The simulation confirmed that the CLH process showed high potential in hydrogen production and the carbon capture.

• Periodical: Advanced Materials Research (Volumes 724-725)
• Pages: 1254-1257
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.724-725.1254
• Online since: August 2013
• Authors: Long Fei Wang, Shu Zhong Wang, Ming Luo
• Keywords: Chemical Looping Hydrogen Production, CO₂ Capture, Oxygen Carrier, Simulation, Solid Fuel

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