Title:
Agrol Gasification in a 100 KWth Steam-Oxygen Blown Circulating Fluidized Bed Gasifier: Modeling and Experimental Validation
Author(s):
Meng, X., de Jong, W., Verkooijen, A.H.M.
Document(s):
Paper
Poster
Abstract:
This paper presents the modeling and experimental study of Agrol gasification in a 100kWth steamO2 blown circulating fluidized bed (CFB) gasifier at the TU Delft. Different types of models, which are an equilibrium model (EM) and a kinetic model (KM) set up in Aspen PlusTM, and an own code fluidization model (FM), have been developed to simulate the CFB gasifier with an emphasis on the product gas distribution and equilibrium analysis of watergas shift (WGS) reaction and methane steam reforming (MSR) reaction. The modeling results achieved from different models are compared and validated with the experimental data obtained from the CFB gasifier. In general, the product gas composition predicted from the KM model is the closest to the experimental values, followed by that from the FM and EM model. The MSR and WGS reactions, as well as char reactions play important roles in determining the final product gas composition. An increase in steam/biomass mass ratio (SBR) increased the yield of the product gas, but meanwhile decreased the lower heating value (LHV) of the product gas, carbon conversion efficiency (CCE %) and cold gas efficiency (CGE%). Three models can all be applied to predict the product gas from the gasification of different biomasses under different operational conditions.
Keywords:
circulating fluidised bed (CFB), gasification, modelling, product gas, char, circulating fluidized bed (CFB), modeling
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for synthesis gas production
Event:
21st European Biomass Conference and Exhibition
Session:
2CV.3.30
Pages:
823 - 837
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2CV.3.30
Price:
FREE
