Substitute fuel production

Quality is our standard!

The high-grade fuels produced by us which are used in cement production must comply with the strict quality specifications of our customers, as the cement quality must not be influenced by the use of substitute fuels.

For our treatment locations we have introduced quality assurance systems which are based on the quality standards developed by BGS e.V. (Gütegemeinschaft Sekundärbrennstoff und Recyclingholz e.V. = Quality Association for Secondary Fuels and Recycling Wood). The quality assurance concepts are continuously updated. In that way we guarantee for our customers that our fuels meet the fuel characteristics required.

Quality assurance already starts at the supplier’s and ends with use in the cement works. As input material, not only dangerous waste is used. Only after sampling, analysis of a representative sample and evidence of process engineering suitability, is approval given and regular take-over of raw material carried out.

Our employees receive regular in-house training and further training in acceptance inspection and production. In that way it is ensured that the substitute fuel produced meets the specified quality criteria.

An installed sampling system, via the production phase as far as final use in the cement industry, forms the basis for permanent analytical monitoring of our substitute fuels.

During production of high-calorific substitute fuel we distinguish between the following qualities:

Substitute fuel quality Q0:
We produce our quality Q0 from a mixture of very high-calorific production wastes as well as packaging waste from the sorting of lightweight packaging. In that way we guarantee a very high heating value with a good reactivity of our fuel.

Substitute fuel quality Q1:
We produce our quality Q1 from pure production waste. By means of an appropriate homogenisation of the input materials, we guarantee a constant calorific value (> 21 MJ/kg) and low chlorine content (< 0.3 %) of our fuel.

Substitute fuel quality Q2:
From pre-sorted high-calorific waste from waste treatment plants we produce, in accordance with our customers’ requirements, our quality Q2 with a calorific value of > 22 MJ/kg and a chlorine content of < 1.0 %.

In the input, production and output phases, all qualities pass through our Quality assurance system. In that way, we guarantee a constant quality demanded by our customers.

We produce this substitute fuel mainly from mechanically separated or picked out fractions from waste treatment plants as well as from production wastes with a low heating value. Moreover, we use residues from the paper industry.

These fractions are produced, after homogenisation, separation of extraneous materials and processing, to form a medium-calorific substitute fuel with a heating value between 11 MJ/kg - 17 MJ/kg. Here, too, we are able to match the quality of the fuel to our customers’ requirements.

All of the qualities pass through our quality assurance system at the input, production and output stages. In that way we guarantee the constant quality demanded by our customers.

Tyre fluff

A suitable fraction in substitute fuel production is also the textile percentage obtained during the recycling of used tyres.

Wood dust
Wood dust is likewise a suitable fraction for use in substitute fuel combustion.

We guarantee our customers delivery of used tyres in line with demand.

Extraneous materials as well as tyres with rims, or tyres which do not meet the acceptance criteria of the individual customers, are excluded by systematic pre-sorting.