For potential users, especially in the industry, which consider bio-oil as well as pyrolysis oil as a fuel alternatives in the future, in-depth knowledge of its technical and economic conditions in various industrial applications is required. To verify which requirements these oils sets on the combustion technology more combustion tests in potential burners are needed to clarify any technical development. To minimize any problems that may arise with pyrolysis oil, from delivery to storage and combustion, the available knowledge about the use of common bio-oils should be used. The overall objective of this project is to investigate the possibilities to use pyrolysis oil in various industrial applications.