Title:
Assessing the Applicability of Circulating Fluidized Bed Gasification of Five Promising Biomasses for Energy Production Within a Biorefinary: Focus on Agglomeration Issues
Author(s):
Christodoulou, C., Koytsoumpa, E.I., Panopoulos, K.D., Karellas, S., Kakaras, E.
Document(s):
Paper
Abstract:
Five promising biomass fuels, namely Mischanthus, Cardoon, Jatropha Cake, Sunflower Cake, and Willow were gasified in a 100 kWth atmospheric circulating fluidised bed gasifier (CFBG) using quartz and olivine as bed inventory materials and air as gasification medium. The fuels used were collected across Europe and span different biomass sources i.e. woody materials, residual cakes from first generation biodiesel production, as well as lignocellulosic material. These materials represent potential fuel mixes of a future biorefinary. The gasification technology could provide both syngas for advanced syntheses but also fuel gas to run boilers and power producing engines to cover the energetic demands of the biorefinary. The work was accomplished within the Eurobioref project with the main aim to assess the quality of the gasification of each fuel at different temperatures (between 770oC and 900oC) and to determine the maximum temperatures before creating agglomeration and defluidization problems in the fluidized bed. A guideline for the applicability of air gasification using the CFBG techniques is produced and presented. All tested fuels proved a good to fairly good resistance to ash problems apart from Cardoon. Agglomerates from these tests were analyzed with SEM/EDS and revealed coatings and necks between bed particles due to ash derived potassium silicate melt.
Keywords:
agglomeration, circulating fluidised bed (CFB), gasification, SEM
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for power, CHP and polygeneration
Event:
20th European Biomass Conference and Exhibition
Session:
2BV.2.21
Pages:
1089 - 1094
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2BV.2.21
Price:
FREE
