Title:
Investigation of Ammonia Removal from the Simulated Producer Gas of Biomass Gasification by H2-Reduced Titanomagnetite
Author(s):
Wang, Y., Pang, S.
Document(s):
Paper
Poster
Abstract:
Catalytic removal of NH3 by unprocessed and H2-reduced titanomagnetites (Fe2.9Ti0.1O4) from two different gases has been experimentally investigated in a lab-scale fluidised bed reactor. The test gases include Ar gas as control and simulated producer gas from biomass steam gasification (H2, CO, CO2 and CH4). In these two test gases, the NH3 concentration was 2300±100 ppmv. The operation temperatures were varied from 500 to 850°C. The experimental results show that in the control Ar gas, the H2-reduced titanomagnetite had much higher activity than the unprocessed titanomagnetite to decompose NH3 at all of the temperatures tested and the efficiency of NH3 removal increased with reaction temperature. The efficiency of NH3 decomposition from the Ar gas by the reduced titanomagnetite was 97.8% at 500°C, 99.7% at 600°C and 100% above 750°C. Therefore, the H2-reduced titanomagnetite was then employed to remove NH3 in the simulated producer gas. For the simulated gas, the corresponding efficiency of NH3 decomposition was 28.4%, 94.7% and 98.4%, respectively, at 500, 750 and 850°C.
Keywords:
ammonia, biomass, gasification, hot gas cleaning, catalyst
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for synthesis gas production
Event:
25th European Biomass Conference and Exhibition
Session:
2CV.3.65
Pages:
876 - 879
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2CV.3.65
Price:
FREE
