Energy-intensive industries

Energy-intensive industries

Our technology provides a combustible synthesis gas from sewage sludge, which can be made available as substitute fuel in energy-intensive industrial combustion processes.

Increased overall energy efficiency

Previously unused waste heat from the industrial process coupled with our technology can be used for the upstream drying of the sewage sludge in a sewage sludge dryer. For this reason, enough energy remains in the synthesis gas when the dried sewage sludge is gasified with our process. Therfore, our synthesis gas is highly suitable as a fuel gas for industrial firing processes.

Substitute for fossil fuels

Our synthesis gas can be used as a substitute fuel for coal or natural gas, for example. This enables the decarbonisation of industrial processes as well as the reduction of dependence on fossil fuels and fuel price development.
Furthermore, synthesis gas from sewage sludge is itself considered a CO2-neutral fuel.

Earnings from sewage sludge acceptance

Sewage sludge is a waste product of water treatment and, in future, must by law be fed into a thermal recycling process. The use of synthesis gas from sewage sludge as a substitute fuel can therefore not only enables savings in energy costs, but also generates additonal earnings in the form of a gate fee from sewage sludge acceptance.

Securing the sewage sludge intake in the long term

The phosphorus contained in the sewage sludge is separated from the synthesis gas in the SÜLZLE KOPF SynGas process and is provided in an ash that can be further processed for phosphorus recovery. Thereby all legal requirements for phosphorus recovery are fulfilled and utilisation of sewage sludge in the industry is ensured even after 2029 (Germany) or 2026 (Switzerland). The separation of the material flows also means that many original components of the sewage sludge are not introduced into the industrial production process with the synthesis gas.

Our product: SynGas fuel gas module

Fields of application

Our technology has been developed for use in energy-intensive, industrial combustion processes with high combustion temperatures.
This is particularly true for the following industries:

  • Cement production
  • Lime kilns
  • Calcined clay production
  • Brickworks
  • Waste-to-energy plants
  • energy-intensive processes in the production of paper, glass, etc.

Further prerequisites are necessary for feasibility. We would be happy to check the feasibility of your project together with you. Simply get in touch with our contact person directly.

Field of appliacation: Cement production

Sewage sludge is already being incinerated in cement plants today. As a result, many prerequisites are already fulfilled:

  • Sewage sludge supply contracts and partnerships
  • Infrastructure for sewage sludge handling
  • Exhaust gas treatment
  • Official permits for sewage sludge utilisation

Placement facilities

  • Rotary kiln
  • Calciner

System coupling

  • Comparatively small plant size, area: approx. 20 x 20 m
  • Synthesis gas pipeline up to 150m

Range of services

Our wide range of services allows us to flexibly adjust to your individual needs:

Project development

  • Project management
  • Financing solution finding
  • Funding acquisition


  • Concept development
  • Approval planning
  • Detailed planning
  • Project Engineering
  • Automation

Plant construction and service

  • Turnkey delivery, assembly and commissioning of the entire plant as general contractor
  • Maintenance and operational optimisation

Kopf SynGas GmbH & Co. KG

Office Tübingen 

Derendinger Straße 40
72072 Tübingen

Tel. + 49 7071 54954 – 50
Fax + 49 7071 54954 – 60

Michael Stölzle

Commercial Project Manager and Project Purchasing

Telefon: +49 (7071) 5495467