Title:
Characteristics of Gasification Chars - Results from a Screening Campaign in Germany
Author(s):
Pollex, A., Bandemer, S., Ulbricht, A., Zeng, T., Herrmann, K., Bräkow, D.
Document(s):
Paper
Slide presentation
Abstract:
Despite several interesting characteristics like high carbon content, large BET surface area and narrow particles size distribution, the solid residues from wood gasification, i.e. gasification chars, are rarely used and commonly considered as wastes. Furthermore, marketing of these materials is hampered by a limited knowledge base on the actual characteristics of gasification chars from different conversion technologies, an incomplete understanding on influencing factors and a lack of standardization both for the material itself and the analytical procedures that have to be employed for their characterization. To provide a basis for standardization and future utilization perspectives, a screening was performed covering a wide range of gasification technologies. The samples were analyzed for ash content, moisture, volatiles, fixed carbon and elemental composition (carbon, hydrogen, nitrogen) as well as the content of polycyclic aromatic hydrocarbons and volatile aromatic hydrocarbons. In total, analysis data of 100 gasification char samples from 14 different gasification technologies have been evaluated. The results indicate a wide variation in the characteristics of gasification chars both with respect to ash and carbon content and level of organic contaminants.
Keywords:
analysis, biomass gasification, screening, carbon sequestration, gasification char, PAH content
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Gasification for power, CHP and polygeneration
Event:
30th European Biomass Conference and Exhibition
Session:
4AO.5.4
Pages:
585 - 589
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-4AO.5.4
Price:
FREE
