Denitrification (DeNOx)

Professional reduction of environmentally harmful nitrogen oxides

In flue gas denitrification in industrial plants, cement and power plants or waste incineration plants, reducing agents such as ammonia water or urea solution are sprayed into the gas stream. In this process, it is important to generate the optimum drop spectrum from a process engineering point of view and to place it as precisely as possible into the optimum temperature range for the reaction in the gas stream. For this purpose, Lechler offers a wide range of twin-fluid nozzle lances and the appropriate injection system to reliably meet the required limit values.

Denitrification (DeNOx)

Denitrification applications

Denitrification SNCR

SNCR process

With the selective non-catalytic reduction of nitrogen oxides, the reagent is injected directly into the hot flue gas at temperatures of 950° – 1,050° C.

SNCR process
Denitrification SNCR in long kiln

Denitrification in long kiln as a special application of the SNCR process

Controllable and multi-stage injection to ensure precise SNCR denitrification for plants with optimal temperature range in the rotating kiln.

Denitrification in long kiln
Denitrification SCR

SCR process

With the selective catalytic reduction of nitrogen oxides, the reagent is injected at temperatures around 300 – 400° C and then reacted in the catalyst.

SCR process

Corresponding products

Nozzle lances and systems for denitrification

Nozzle lances and systems for denitrification

For complying with limit values

Lechler nozzle lances and systems for different specified limits, which can grow modularly to meet your specific requirements.

Learn more Technical data (pdf, 4.10 MB)

These topics might also be of your interest

Simulations by CFD

CFD supported process analysis can be used to identify optimization potentials. Inefficient operation, wet floors or walls and deposits are a thing of the past.Simulations using CFD
Lechler Engineering

Lechler Engineering - Our experience for your success

With our experienced engineering team, you always have a competent contact person for your project – from the technical design and detail engineering to commissioning and the replacement of spare and wear parts. See for yourself!Engineering Services