Residual gas  purification solutions

NOx & SOx removal for cleaner emissions

Even trace amounts of unwanted gaseous components in the ppb- or ppm-range can be a big problem when it comes to compliance with international or local regulations on emissions.

On top of that, harm to humans, equipment or to the environment they can cause might be detrimental to your business. They also might interfere in unwanted ways with downstream processing causing additional costs and impact production times.

At Krajete we know how to separate even the tiniest amount of small gas components. If you emit NOx, CO, HC, H2S, etc. our advanced technologies allow both the disposal of the removed compounds or their valorisation to value-added ressources. 

By employing filter and separation technologies inspired by Nature we are partner for customers striving for a fully circular economy. 
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Examples of applications at industrial level

Carbon monoxide and airborne dust are both harmful to human health, and this is where our expertise shines. Over years of collaboration with major European car manufacturers, we have developed technologies to purify exhaust gases effectively.

Our advanced adsorption technology allows us to remove nitrogen oxides and other impurities at an industrial scale. This versatile system not only eliminates NOx from your emissions but also transforms it into valuable products. These by-products can be reintegrated into your production line or sold to third parties.

Examples:

  • Automotive Industry: Purifying exhaust gases to meet stringent emission standards.
  • Power Plants: Removing NOx from flue gases and converting it into industrial-grade nitrates.
  • Chemical Manufacturing: Capturing and repurposing NOx emissions into fertilisers or other chemical products.
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Benefits  of our solutions for businesses :

  • We enable you to comply with emission regulations that might impact your business core activity
  • We uncover for you new streams of revenue by identifying the value of your problematic emissions
  • We facilitate your business with obtaining “green” certificates and labels

Ready to reduce and valorise your emissions effectively?

We offer cutting-edge NOx and SOx removal solutions customized to fit your industry needs. 

Partner with us to ensure regulatory compliance, boost operational efficiency, and promote sustainable practices. 

Contact us today for more information or to schedule a consultation. 
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What is residual gas purification?
Residual gas purification targets trace components in the ppm/ppb range that threaten compliance, safety, and downstream stability. Krajete applies nature-inspired adsorption and separation to capture “small components” such as NOx, CO, HC, and H₂S. Captured streams can be routed to safe disposal or explored for valorisation, supporting circular value alongside cleaner emissions.
Why do tiny impurities matter?
Even minute amounts can corrode equipment, harm workers, and trigger off-spec reactions that slow production. Precision removal stabilizes processes, protects assets, and helps meet local or international emission limits. Addressing these traces early also reduces hidden costs from maintenance, unplanned shutdowns, and quality losses in downstream steps.
Which industries does Krajete GmbH serve ?
We serve a wide range of industries, including oil & gas, mining, power generation, chemical manufacturing, automotive, metal manufacturing, shipping & transportation and more.
What makes Krajete GmbH unique ?
Our holistic approach to emissions control, inspired by natural processes, and our ability to transform harmful gases into valuable by-products set us apart.

How does the technology capture problem molecules?
Adsorption units, informed by natural separation principles, bind targeted molecules selectively. Operating windows and materials are chosen from site data, enabling efficient removal of specific contaminants. After capture, streams can be concentrated for disposal or evaluated for circular uses, aligning environmental performance with potential operational value.
Which industries benefit most?
Automotive, power generation, and chemical manufacturing see clear gains. Krajete has developed exhaust purification with major European car makers and scales the approach to plant-level operations. The same platform addresses mixed impurity profiles, enhancing compliance and process reliability while opening options to repurpose certain recovered components.
What is SOx removal in this context?
SOx removal refers to the selective capture of sulfur oxides present at low concentrations that can drive corrosion, odor, and compliance risk. By integrating adsorption stages into existing lines, facilities lower sulfur burdens that interfere with catalysts and downstream steps, improving workplace conditions and overall process stability.
How does SOx removal from flue gases typically proceed?
SOx removal from flue gases begins with representative sampling and lab analysis to size the adsorption stages. Materials and conditions are then tuned to the real gas, enabling efficient capture. Where feasible, recovered streams are assessed for circular routes; otherwise, safe handling/disposal pathways are implemented to ensure consistent regulatory performance.
What business outcomes are typical?
Organisations gain emissions compliance, lower operational risk, and more stable production. Where recovery makes sense, additional value can emerge from repurposed streams. The approach also supports sustainability goals and “green” certifications, demonstrating measurable progress on cleaner emissions while aligning purification with long-term asset and process performance.