GUSSING GASIFIER PLANT - PROCESS TECHNOLOGY
The Dual Fluidized Bed (DFB) Gasifier developed by Gussing Renewable GmbH (GRE) with the technology introduced by Vienna University of Technology, is considered as the most sophisticated process for the production of gas from renewable resources in the world and is state of the art. At the heart of the FICFB (Fast Internally Circulating Fluidized Bed) reactor are two interconnected fluidized bed reactors. In one, the gasification reactor, feedstock together with water vapor produces a nearly nitrogen-free, low-tar gas with high calorific value in a circulating fluidized bed at ~850° C. Coke from gasification and process residues, such as tar, are burned in the other,i.e. the combustion chamber, at ~930° C. Here the bed material (olivin sand) circulating between the two fluidized beds is heated. The bed material transfers most of the heat generated in the combustion chamber into the gasification reactor.