Applications

Our services and applications include:
Optimisation of Powerplant Processes with Auxiliary Plants:
The following auxiliary plants can be adapted to most existing boiler setups. They are designed for easy retrofit.

Sulphur Injection

The injection of sulphur allows for a reduction of corrosion caused by aggressive deposits, especially chloride containing ones. At the same time, sulphur causes an embrittlement of deposits, making cleaning a lot easier.

This reduces the amount of boiler inspections for cleaning and maintenance, leading to an improved uptime.

Our publications provide further information about this topic:
=> Operation and Benefits of the Sulphur Burner

Our customers will gladly confirm the positive effects of the sulphur injection.
Sulphur injection users include:

  • the RDF plant Weener (Germany)
  • the waste-fired power plant of the MVV Environment Devonport Ltd (UK)
Trial runs are currently carried out on several other plants.

Booster Steam Injection

We developed a booster steam injection, which is installed inside the secondary air nozzles. It allows for an improved mixing of furnace gas leading to better combustion without the need to increase the air supplied. CO-peaks can effectively be prevented.

Besides a more homogenous combustion and easier compliance with legal emission limits, the improved gas mixing results in a better coefficient of performance.

The advantages at a glance:
  • The improved mixing of furnace gas after the combustion chamber at the entrance of the first radiation pass leads to a more complete combustion.
  • A small mass flow of booster steam already provides a high mixing energy. This allows for a reduction of secondary air and the use of recirculation gas is no longer needed. A good combustion can be achieved with a low proportion of oxygen.
  • A reduction of secondary air can serve as a primary measure to reduce NOx emissions.
  • Without recirculation gas, the needed components for it are no longer needed. Maintenance at these components like tubes, fans or compensators, which often suffer from corrosion, can be omitted.
  • Without recirculation gas and with reduced air supply, the total amount of furnace gas decreases. This leads to lower gas velocities and longer residence times inside the furnace. The furnace gas carries less dust, which reduces the built-up of deposits inside the furnace.
  • Booster steam can be used to adjust the flow profile inside the first radiation pass e.g. to achieve the usually preferred piston flow. An even flow and temperature profile avoids fouling caused by high local gas velocities, mostly at the front wall (side of waste input). A piston flow with homogenous temperature distribution is beneficial for the operation of a SNCR plant.
Booster steam users include:
  • the waste-fired power plant in Schwandorf (Germany)
  • the EEW RDF plant in Hürth (Germany)

SNCR plants & Measurement of NH3-Slip in Flue Gas and Residuals

Our urea or ammonia based SNCR plants are optimised for easy retrofit on existing boilers. They provide a high efficiency and reduce the number of needed boiler openings as far as possible.

Unlike common wall installations, our design offers a stepless adjustment of the injection height. This allows for an adaption to the optimal temperature inside the furnace for the chemical reaction.

During process control and optimisation of the SNCR plants, we gained extensive experience in the field of ammonia measurement in the flue gas and residuals. We are happy to offer you advice on ammonia measurement and avoidance of ammonia slip in the flue gas.

Furnace & Radiation Pass Calculation and Modelling

Combustion and Thermal Modelling

We provide calculation and display of chemical, thermodynamic processes in the field of combustion and boilers. This can be used for the design of auxiliary plants and optimisation of process parameters. In contrast to common CFD calculations, we use plausible and transparent models based on balancing with a manageable number of input parameters.

Possible applications are for example:
  • display of temperature profiles along the flue gas path with respect to the influence of deposits
  • plausibility check of the compliance to the minimum combustion parameters according to German law (17. BImSchV)
We are happy to apply our methods also on other plants depending on your needs. Just contact us!

R1 Interpretation

The R1 coefficient is used for the classification of incineration plants into the categories of waste recovery or removal according to the directive 2008/98/EC on waste.

As a competent provider of the R1 calculation, we already categorised several plants in Germany. You could be next!

Contact

Would you like further information or are you already interested in working with us?
For a first contact you can use the form below.

If you are interested in our service, do not hesitate to contact us!
Tel.: +49(0)36458 48 36 81 or use our contact form