Incineration of wastes releases pollutants, which are often found in flue gas. CTU Clean Technology Universe AG (CTU) offers ecological and economical gas cleaning solutions for:

• Municipal solid waste incineration plants
• RDF (refuse derived fuel) power plants
• Pyrolysis plants
• Gasification plant

In follow, the most important systems which are used by CTU, will presented.

Main purpose is the safe separation of inorganic components and aerosols from the flue gas with quench, acid and neutral stages. The process is characterized by low energy input, durability and high operational reliability.

CTU technology prevents the formation of aerosols thereby avoiding an elaborate and expensive additional stage. Additional systems, such as wet electrostatic precipitator or a ring-jet stage may be implemented on demand.

The elimination of very fine particulates (PM10) is assured by using structured packing and formation by avoiding the use of spray nozzles for distribution of scrubbing liquid in the scrubber. CTU also uses flue gas scrubbers successfully for sewage sludge and for industrial waste incineration plants.

If a combustion process allows the use of a non-catalytic DeNOx process (SNCR), CTU provides a proven, highly flexible solution for injecting the reducing agent. The nozzles are steered and tracked carefully to achieve optimum performance.

For the catalytic (SCR) DeNOx and DeDiox CTU uses a honeycomb catalyst and has had success with both raw and clean gas configurations.

Dry and semi dry processes are ideal when the unit is to be kept free from liquid effluents. CTU provides this technology for eliminating fly ash, dust, acidic flue gas components, aerosols and PCDD/F.

Various adsorbents such as Hydrated lime, sodium bicarbonate or mixtures of activated carbon / HFC can be used depending on process conditions.