The coal ashes accumulate at the bottom of the fluid bed reactor. They are removed from there out of the reactor by two conveyor spirals. The hot raw gas is cooled down to 270◦C. Its heat is used to generate pressure steam, some of which is recycled back into the process. Ceramic filters remove remaining dust particles out of the gas. The following gas washer removes NH3, HCL and other gas components. The following CO conversion creates the correct carbon monoxide/hydrogen mix for the methanol synthesis. After a compression to 37 bar the gas is processed in a non-selective rectisol washer (CO2/H2S washer). At temperatures below −40◦C liquid methanol is used to wash out carbondioxide and sulfuric components. The methanol is used again after recycling it and the purified synthesis gas is used at a nearby chemical plant.