Catalytic Deoxygenation
Pd / Pt getter catalysts reduce O₂ to sub-ppb in inert and reducing gas streams — the core of every UHP purifier.
Technology
Catalysis and ultra-high-purity gas purification, developed in-house.
Kaiteli's engineering team owns the core catalysis and adsorption technologies behind each product — from ambient desulfurization to 9N semiconductor-grade purification — allowing us to optimize every solution around the customer's actual process data.
Adsorption Purification
Multi-bed 3A / 4A / 13X molecular sieve and activated alumina design for deep drying and impurity capture.
Organic Sulfur Hydrolysis
Al₂O₃-based hydrolysis of COS and CS₂ to H₂S for downstream ZnO removal — protects reformers and hydrogenation catalysts.
Zinc Oxide Desulfurization
Non-regenerable ZnO absorbents deliver sub-0.1 ppm total sulfur outlet for natural gas, syngas and hydrogen.
Methanation
Ni-based CO / CO₂ conversion to CH₄ — final sulfur- and carbon-oxide cleanup upstream of ammonia synthesis loops.
SCR DeNOx
V₂O₅-WO₃/TiO₂ honeycomb and plate catalysts for High NOx conversion (project-dependent) at low ammonia slip in stationary sources.
Getter Purification
Reactive metal getter alloys irreversibly capture O₂, H₂O, CO, CO₂, H₂ down to 9N purity in noble and reactive gases.
UHP System Design
Custom skid design — flow, pressure, regeneration, redundancy, control philosophy — for critical fab utilities.
Technology stack matrix
Which technology fits your duty?
A high-level mapping between target impurity and the Kaiteli technology typically deployed. Every real project is scoped from the full feed data.
| Target impurity | Typical technology | Outlet spec (typical) | Common industry |
|---|---|---|---|
| H₂S / COS / Mercaptans | ZnO desulfurizer + Al₂O₃ hydrolysis | <0.1 ppm total S | Natural gas, syngas, H₂ |
| O₂ trace in N₂ / Ar | Getter deoxo + molecular sieve | <1 ppb O₂ / H₂O | Semiconductor, PV |
| AsH₃ / PH₃ in olefins | Composite Cu / Zn / Ni absorbent | <10 ppb | Polyolefin, petrochemical |
| NOx in flue gas | V₂O₅-WO₃/TiO₂ SCR catalyst | High conversion | Power, steel, glass, marine |
| VOC in exhaust air | Pd / Pt catalytic combustion | >98% destruction | Coating, printing, pharma |
| CO / CO₂ in H₂ | Methanation / PSA polishing | <10 ppm total | Ammonia, fuel cell H₂ |
| H₂O in beverage CO₂ | Multi-stage sieve + carbon | ISBT / EIGA spec | Beverage, dry ice |
Need a rigorous selection? See our selection guide or share your feed data via the RFQ form.
Engineering Support
Need help selecting the right catalyst, adsorbent, or gas purifier?
Share your gas composition, impurity levels, flow rate, and outlet purity requirement. A Kaiteli process engineer will respond within one business day with a tailored selection and quotation.