Title:
Sepiolite Performance as Bed Material Towards Gas and Tar Compositions During C. Cardunculus L. Gasification
Author(s):
Serrano Garcia, D., Sanchez Delgado, S., Horvat, A.
Document(s):
Paper
Poster
Abstract:
Sepiolite, a clay mineral with good adsorbent properties is proposed as bed material for biomass gasification in bubbling fluidized bed. Cynara cardunculus L. has been used as biomass feedstock and silica sand has been also used as a reference bed material. Operating temperature is varied from 830 to 875 ºC with a constant equivalence ratio of 0.30. The raw gas generated using sepiolite as bed material has a slightly less quality than the gas produced with the reference material. However, there is a clear improve in the tar generation, obtaining a reduction of 50 % of the total tar and more than the 90 % in the tertiary–PAH fraction. Oxygenated and single ring alkyated compounds are only present when sepiolite is used, disappearing species bigger than anthracene. A BET surface area and SEM–EDS analyses performed in the sepiolite after gasification shows that tar species and molten ashes are adsorbed on the sepiolite surface.
Keywords:
gasification, tar, fluidized bed, Cynara Cardunculus, adsorbent
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for power, CHP and polygeneration
Event:
25th European Biomass Conference and Exhibition
Session:
2CV.3.13
Pages:
755 - 759
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2CV.3.13
Price:
FREE
