The T:CRACKER® screw reactor is a state-of-the-art thermal conversion system designed for the efficient pyrolysis of various feedstocks. Operating at approximately 973 K in a low-oxygen environment, the system thermally decomposes preheated and dried material through a carefully controlled process.

Material remains in the reactor for approximately 30 to 90 minutes, with residence time managed by adjusting the speed of the reactor screw. During this time, the feedstock is dried and pyrolytically decomposed, driven by a defined thermal energy input.

The feedstock is introduced into the system via a sealed feed mechanism, ensuring a controlled and safe operation. As the material moves through the reactor, it undergoes thermal decomposition, producing two primary products:

• Pyrolysis gas (a mixture of permanent gases and condensable vapors)

• Pyrolysis coke (also known as carbonizate)

At the end of the reactor, the pyrolysis gas—composed of roughly 15–20% permanent gases and 80–85% condensable components—is directed straight into a combustion chamber. Here, it is combusted in stages under the specifications of the Waste Incineration Ordinance. The gas is held at a minimum of 1075 K for at least 2 seconds to ensure complete combustion.

The permanent gas fraction includes CO, CO₂, H₂, N₂, H₂S, CH₄, and other trace gases, while the condensable portion contains organic compounds such as acetic acid, butyric acid, BTX, oils, and water.

Following combustion, the flue gas passes into a mixing chamber, where it is safely cooled to 570 K by controlled air injection. The remaining solid product, pyrolysis coke, is collected beneath the reactor and continuously discharged via a screw conveyor.