Examples of indirect gasification processes are the Fast Internal Circulation Fluidised Bed (FICFB) process developed by the Vienna University of Technology (TUV) [8], the SilvaGas process based on the Batelle development [9], and the MILENA gasifier developed at the Energy research Centre of the Netherlands (ECN) [10]. Examples of indirect gasification processes, where the heat is transported by heat exchangers, are the MTCI process [11] and the heat pipe reformer [12].
Examples for direct fluidised bed technologies with mixtures of oxygen/steam are the e.g. BIOSYN [13] gasifier, the technology from GTI/IGT RENUGAS [13], the technology from Cutec [14], and VTT-Carbona gasification technology.