The abbreviations RDF (Refuse Derived Fuel), SRF (Solid Recovered Fuel), SSW (solid shredded waste) and MSW (Municipal Solid Waste) stand for valuable refuse derived fuels (RDF), which were considered a problem for decades. Whether energy-rich waste from households or from the industry: STELA drying technology converts them into renewable resources for a sustainable energy economy.

The name alone makes it clear that the corresponding drying systems must deal with a very inhomogeneous and sometimes difficult-to-handle raw material. The raw material varies greatly from batch to batch, is neither regionally nor seasonally consistent and can change depending on the time of year.

A customised and efficient STELA drying system guarantees the following points:

• Highest product quality

• Safe process control

• Gentle dehumidification

• Improved storability

• Reduction of transport costs

The drying process makes the product more transportable and increases its calorific value. In addition, the storability is improved, and the weight loss reduces transport costs.

To achieve the desired improvements, the drying technology at RDF, SRF and MSW is faced with the challenge of reacting individually to the sometimes strongly fluctuating moisture content.