Gasification has its own challenges and issues, as does pellet production. Understanding and respecting these issue will give a more reliable and efficient operation. In this video Ben from Victory Gasworks explains the challenges and issues associated with gasification, and how to resolve them.
Fuel Bridging
In the gasification chamber the material is gravity fed into the pyrolysis section of the reactor. As gravity is what makes the fuel fall downwards, some fuels will not fall and this will create problems, and the process could stop completely.
The advantage with pellets is that they move and fall freely, making them an ideal fuel for gasification. As they have a high energy density, and are much less likely to bridge and stop the combustion process.
Fuel Sensitivity
As Ben states in the video small dense particles of fuel are required for gasification, and pellets provide a uniform dense fuel that will flow well through the gasifier. Agricultural residues for example must be compressed into pellets before they can be used in a gasifier.
Finally moisture content is also crucial to efficient gasification. Excessive moisture vapour will cause problems, particularly if the gas will be used in an internal combustion engine. Low moisture content is also crucial so the gasifier can reach tar-cracking temperatures to reduce the tar percentage in the gas.
If you would like to register your interest in the PelHeat Mobile Pelletizer please contact us at:
Contact @ PelHeat . com
Thank you for your interest
