With gasification plastics and other high-caloric waste is broken down into small chemical molecules at high temperatures and with the addition of oxygen or steam. The final product is synthesis gas. After purification, the synthesis gas can be applied directly in petrochemical production. Gasification can be used to process a wide range of heterogeneous waste streams. However, the more heterogeneous the waste streams, the more complex the purification to produce a high-quality synthesis gas becomes. Gasification needs a lot of energy and has high process engineering requirements that can only be implemented in large-scale plants. This, in turn, requires large quantities of raw materials collected in one place.