During the pyrolysis process the biomass is split into its solid, fluid and gaseous components. The solid and fluid parts are used as combustibles. Thereby pyrolysis gas is formed which is a high-energy gas and can be used for different kind of applications. Gases with a similar composition are generated for example in the fuel industry. The main difference between the “classical” biogas and the pyrolysis gas is the completely different composition, in most cases the high gas temperature and the pollution in the gas. This makes an alternative fitting technology as well as control system necessary.