SPEcial liquid fuels.
In addition to the standard liquid fuels light oil and heavy oil, there are a number of substances with a calorific value of more than 15 MJ/kg that contain so much energy that thermal utilization is worthwhile. These include, for example:
- Animal fat
- Rapeseed oil
- Soybean oil
- Palm oil/fat
- Fish oil
- Glycerin
- Frying fat
- Biodiesel
- Sulfur
- Silicone oil
- Numerous contaminated by-products of the chemical industry, such as biphenyl acetate (BPA), styrene, or toluene
While some of these substances are produced specifically as primary raw materials for thermal recycling, many are by-products or even genuine "problem substances" that have a negative impact on the balance sheet and must be disposed of. All of them have a high calorific value, but differ in their chemical and physical properties. Numerous special fuels must be preheated in order to achieve a viscosity suitable for combustion or to become liquid in the first place. Many are contaminated and place high demands on the combustion process due to their fluctuating chemical composition.
A ROTNOX GL, for example, is ideal for this purpose. Because its parts that come into contact with the fuel are made of stainless steel, it reliably utilizes even highly viscous and contaminated liquids with a high acid number and ensures the best possible emission values with excellent burnout.
Regardless of which burner is used for which fuel, the utilization of special fuels is usually a worthwhile investment. This is especially true if this material previously had to be disposed of at great expense or with the use of auxiliary fuel instead of being used to generate energy. This new energy source not only eases the strain on the budget, but also protects the environment.