Conference paper

Gas equilibrium and exergy analysis of the FICFB and Viking gasification concepts

Two biomass gasification concepts, i.e. indirectly heated, steam blown fluidised bed gasification and directly heated, air blown fixed bed gasification are modelled with adjusted equilibrium equations, their energy requirements are integrated and an exergy analysis of the different process sections is performed. The difference between the observed gas composition and the thermodynamic equilibrium is assessed, their overall performance is compared and major loss sources of the systems are identified.

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