Measured on your gas, removed with regenerative adsorption, proven at pilot scale.
Krajete is an Austrian gas-purification specialist. We do two things: we analyse what is really in your industrial gas stream, and we remove the NOx, with regenerative zeolite adsorbers that work at ambient temperature, without ammonia, catalysts or process water. Outlets reach the 1 ppm class in industrial service.
99.9%
NOx capture demonstrated
in CO₂ matrices
1 ppm
outlets in industrial service,
sub-10 ppb in CO₂ polishing
50–18k m³/h
containerised pilot envelope,
slipstream-ready
0 reagents
no ammonia, no catalysts,
no process water
THE GAS LEAVING
YOUR STACK
BECOMES THE AIR
SOMEONE ELSE BREATHES
WE MEASURE IT, THEN WE REMOVE IT, BEFORE IT DOES
Start here
Know exactly what is in your gas,
and what it would take to fix it.
The destination
NOx captured at ambient temperature,
recoverable as feedstock instead of destroyed.
The destination
Trace NOx, SOx and H₂S stripped at ambient temperature,
CO₂ cleared to pipeline and storage spec.
1
Fixed-price analysis: €4,900, four weeks, permit-aligned report + engineer review.
2
Bankable design basis with CAPEX/OPEX options and lifetime model. €15–25k, 6–8 weeks.
3
Milestone-gated (mobilise → operate → decision pack), KPI acceptance criteria, on your own stream. €90–250k by scale.
Where we stop, deliberately
We deliver to pilot scale. Full-scale construction is executed by your engineering partner of choice.
| Dimension |
 SCR / SNCR / wet scrubbing
|
regenerative adsorption |
|---|---|---|
| Operating temperature | ~250 °C (SCR) or 850–1050 °C window (SNCR) | Ambient, no gas reheating |
| Consumables | Continuous ammonia / urea dosing; catalyst replacement | None, adsorber regenerated with gentle heat, reused |
| Fate of the NOx | Destroyed to N₂, or shifted into wastewater | Concentrated on desorption, recoverable as nitric-acid / fertiliser feedstock |
| Real-gas tolerance | Sensitive to dust, humidity, load swings | Demonstrated on hot, dusty kiln slipstream; stable day-2 removal >85% |
| Outlet level | ppm-range at best, in favourable conditions | 1 ppm class in service; sub-10 ppb in CO₂ matrices |
Two minutes with Dr. Alexander Krajete.
Regenerative NOx removal
Krajete installed a mobile slipstream system on a diesel generator supplying off-grid drilling power. The pilot cooled exhaust from above 350 °C into the adsorption range, ran continuously for two weeks, and retained the captured nitrogen predominantly as
Regenerative NOx removal
Krajete operated a 250 L pilot adsorber on real waste-incineration flue gas, progressively stabilised the gas-conditioning train, and demonstrated the full concept from adsorption through thermal regeneration to recovery of high-purity nitric acid.
The science
got harder.
The promise
got simpler.
Fifteen years of adsorption research, down to one sentence:
send us one sample, we'll tell you what's really there.
2015
Exhaust gas purification established with industrial CO2 sources in laboratory. Focus on solid adsorbers.
Audi collaboration
2016
First cartridge for regenerative NOx removal at exhaust tailpipe of Diesel cars – landmark achievement and start of technology development
2017
First high performance, high pressure bioreactor for CO2 and hydrogen conversion to methane with archaea microorganismis
2018
Gas sampling at refinery in Europe
2020
On-board, regenerative NOx removal on Diesel car
2023
Advanced laboratory for regenerative removal of pollutants in emission, air and CO2 gas streams
2024
Regenerative NOx removal in laboratory, glovebox setup, passive NOx removal
2025
Big NOx adsorber for regenerative NOx removal on oil drilling platform, on-shore
2026
Pilot system for simultaneous NOx, SO2 and H2S removal in concentrated CO2 streams with extraordinarily low outlet NOx values below 100 ppb (< 0.1 ppm)
After you submit, an engineer reviews your message and replies within one business day, usually with a direct answer, sometimes with a short call if your case needs it.
No sales follow-up, no newsletter sign-up.
CO₂ transport, shipping and storage purity, trace NOx/SOx/H₂S polishing to spec, down to ppb.
Processing facilities and engine rooms with NOx point sources; containerised, low-footprint retrofit.
Kiln lines with dust, humidity and load swings, the conditions our media has already survived.
If adsorption is not the right answer for your stream, the report says so, and the analysis fee is refunded.
€4,900 fixed, with the report delivered four weeks after your sample reaches our laboratory. It includes the full composition analysis, a removal-feasibility assessment, a permit-aligned appendix and a one-hour engineer review call. If we identify no actionable pathway, the fee is refunded.
No. We deliver analysis, feasibility and pilot-scale regenerative NOx removal units. For full-scale construction we hand over a validated design package to your chosen EPC partner.
No. Our regenerative adsorption media works without ammonia dosing, without noble-metal catalysts and without water consumption. Regeneration is purely thermal.
Chemical and specialty gas producers, biogas and biomethane plants, power and waste-to-energy operators, and industrial process facilities with NOx point sources.
Stop guessing
what is in your gas.
One sample. Four weeks. A decision-grade answer, or your money back.
