Cleaner air with proven low-NOx combustion technology

Fortum eNext's combustion solutions reduce emissions effectively and help you meet regulatory requirements. Take a step towards a clean energy future with our advanced and cost-efficient technology for controlling nitrogen oxide (NOx) emissions.

Smoky sunrise
Efficient NOx emission reduction

For variety of fuels and for any OEM's equipment

Low total lifetime cost

Economical solution irrespective of the current set-up at your site

Professional turnkey project

Structured process and short production downtime

Over the last decades, many countries have periodically tightened the nitrogen oxide (NOx) emission regulation for thermal power plants, and the trend towards lower emission limits continues. With long global experience in designing and implementing low-NOx combustion refurbishments with various fuels, Fortum is in a unique position to offer advanced low-NOx combustion know-how and technology. We have the expertise to meet the desired emission levels, regardless of the current set-up at your site. An optimal combustion solution is designed to fit any original equipment manufacturer's (OEM) technology with minimum capital expenditure.

Fortum eNext has been a forerunner and developed its own low-NOx solution based on primary methods. Implementing this technology and using low-NOx burners or modified burners in conjunction with carefully designed overfire air (OFA) nozzles, the NOx emissions in power production can be reduced to a level below 300 mg/ Nm3. Employing primary methods has no impact on operational expenses nor boiler behavior, therefore always being a wise choice of technology. In case further reduction is needed to reach even lower emission level, additional secondary methods can be applied, still keeping the total investment as cost-efficient as possible over time.

Why employing primary methods for NOx emission reduction is cost-effective?

Investing in primary methods is always wise

An investment in primary methods is always an economical way to cut down emissions in the long run, regardless of the boiler’s current set-up. A solution based on primary methods requires a reasonable one-off CAPEX investment for the customer without any increase in OPEX and is therefore very cost-effective.

The table below offers a comparison of alternative NOx reduction technologies and solutions to reach 300 mg/Nm3 at all times.

Comparison of NOx reduction technologies

Comparison of NOx reduction technologies


Fortum eNext low-NOx delivery steps

At Fortum eNext, we believe in preventing the formation of nitrogen oxides rather than seeking to get rid of them afterwards. We also know that our clients are looking for solutions on how to reduce emissions in the most cost-efficient way possible. Therefore we always recommend employing primary methods for NOx emission reduction as the first measure. This is effective not only in terms of low total cost of ownership but also for the environment, due to not needing resources like water or chemicals for the process.

Fortum's low-NOx delivery starts with an assessment of the current design and performance of the boiler, and by analysing data provided by the customer. As a second step a computational fluid dynamics (CFD) modelling is conducted to design an optimal OFA system and required burner modifications for the case in question, to achieve the required NOx emission reduction. Technical implementation will be carried out as an efficient turnkey project in co-operation with our local partners with short production downtime.

How to reduce NOx emissions cost-efficiently and reliably? Download our white paper to find out.

"Implementing primary NOx reduction methods entail lower operating and maintenance costs as compared to secondary methods, thereby ensuring that overall life-cycle costs are kept at minimum. Moreover, primary methods not only reduce emissions, but also enhance plant performance through optimisation of boiler operations."

Antti Heinolainen, Product Manager, Environmental Performance at Fortum eNext

Contact our specialist for more information

Antti Heinolainen

Antti Heinolainen

Senior Product Manager, Combustion and Boilers
Tel: +358 50 45 32137