Waste gases are heated in the presence of special CTP oxidation catalysts which are responsible for the high cleaning efficiency and outstanding cost-effectiveness of the recuperative catalytic oxidation (CO).

Low reaction temperature achievable with catalysts and the outstanding thermal efficiency of the regenerative thermal oxidation (RTO) are the benefits of the regenerative catalytic oxidation (RCO).

Further CTP has developed recuperative as well as regenerative selective catalytic reduction system solutions (SCR). The SCR technology converts NOx with a reduction agent to nitrogen and water in the presence of a catalyst. The chemical reaction is selective and this means oxides of nitrogen are preferentially reduced while unwanted side reactions are inhibited.

In regenerative thermal oxidation systems (RTO) harmful compounds are oxidized without residue and the oxidation energy plus the heater energy is recovered by the ceramic heat exchanger and is further used in the process resulting into reduced auxiliary fuels requirements and lower operating costs.

In direct thermal oxidation systems (TO) several waste gas streams, liquid or gaseous, with concentrations from lean to explosive are injected directly in to the combustion chamber and oxidized.

The combustion chamber can be combined with a variety of other purification systems (e.g. scrubber unit, rotor, fixed bed adsorber, filter or a DeNOx system). The purified gas can be directed to down-stream heat recovery.

Regenerative thermal oxidation systems (RTO) in combination with direct thermal oxidation systems (TO) but also with selective non-catalytic reduction technology (SNCR) with injection of liquid or gaseous reduction agents into the waste gas as well as selective catalytic reduction (SCR), both for the reduction of NOx.

Proven systems and longterm experience resulted into a new series of optimal solutions.

For treating large waste gas volumes with low contaminant concentrations as well as for concentration peaks or batch processing but also for the removal of inorganic components CTP relies on adsorption and absorption technologies.

For example rotary adsorbers are used to concentrate a large flow with low contaminant concentration to a much smaller, highly concentrated waste gas stream.

CTP’s single or multiple fixed beds adsorb contaminant peaks and highly variable concentrations and then desorb them in a downstream oxidation system.

For the removal of inorganic components, contaminants such as acids (HCl, HF), sulfur dioxide (SO2), organic pollutants (e.g. PCDD/DF) or heavy metals are accumulated on the sorbent which is removed efficiently in a downstream collector. Another possibility is the combination of a quench from where the cooled gas is directed to a scrubbing chamber in which the pollutants interact with the scrubbing solution.