In the eighties, industry began to take an interest in recovering solid fuels from waste streams in order to reduce disposal costs and energy costs. As it is difficult to identify the fuels as monostreams (e.g. recycled wood), these streams were in general referred to as ‘Refuse Derived Fuels” (RDF) or “Solid recovered fuels” (SRF).
The cement kilns are an important market for these fuels. There is however a huge unused potential to use these recovered fuels to produce energy for district heating, power generation and other industry. This will help to decarbonize the industry by replacing fossils fuels.