Capture troublesome impurities from complex gas streams
FERROLOX®-XG is a porous, iron-functionalized lignin-based adsorber developed primarily for hydrogen sulfide removal and the treatment of selected contaminants in industrial gas streams.
The brochure describes FERROLOX®-XG as a lignin-based porous organic material metallized with iron(III). Its combination of internal porosity, surface functionality and iron-based reactive sites is intended to capture hydrogen sulfide and potentially selected acidic gases and volatile organic compounds. The media is positioned for petroleum production, biogas, wastewater off-gas and other industrial applications requiring gas purification before use, discharge or downstream treatment.
High internal surface / Reactive gas capture
One porous media.
Multiple gas-treatment environments.
FERROLOX®-XG can be considered for fixed-bed treatment of H₂S-bearing and contaminated industrial gases. Each application requires compound-specific adsorption data and professional process design.
Biogas and Digester Gas
Targeted hydrogen sulfide removal for renewable energy and combined heat and power systems.
Oil and Gas Production
Gas sweetening and treatment in upstream and midstream petroleum operations.
Petrochemical Process Gas
Removal of sulfur compounds and acidic impurities from industrial chemical streams.
Wastewater Treatment Off-Gas
Scrubbing odorous H₂S emissions from municipal and industrial sewage facilities.
Landfill and Sewage Gas
Purification of collected landfill gas before energy recovery or flaring.
Industrial VOC-Bearing Air
Adsorption support for volatile organic compounds and gaseous emissions.
Four gas-purification functions within one porous adsorber
Reactive hydrogen sulfide removal (SULFIDE-CAPTURE™)
Iron-functionalized adsorption sites provide affinity for hydrogen sulfide, supporting H₂S reduction from biogas, petroleum gas and wastewater-related gas streams.
High-surface-area porous structure (LIGNIN-PORE™)
The lignin-derived organic structure is described as providing a BET surface area of approximately 1,880–2,000 m²/g, creating extensive internal surface for gas adsorption.
Potential multi-gas adsorption (ACID-GAS™)
The brochure positions FERROLOX®-XG for H₂S, CO₂ and other acidic gases. However, capacities and breakthrough results are provided only in general terms and require compound-specific validation.
Application-specific oxidative treatment (OXY-RENEW™)
The brochure proposes an OXYDES-XG process for treating loaded media. Because oxygen contact with sulfur-loaded adsorbents can generate heat or ignition, any oxidative process requires dedicated engineering and safety validation.
Iron-functionalized lignin technology
FERROLOX®-XG combines a porous organic structure with iron-based active sites to provide multiple pathways for gas adsorption and reactive contaminant capture.
- Lignin-Derived Porous Structure – The base material is a lignin-based porous organic polymer with an extensive internal adsorption surface.
- Iron(III) Functionalization – The porous granules are metallized with iron(III), introducing reactive sites intended to improve adsorption and catalytic activity.
- High Internal Surface Area – A published BET surface-area range of approximately 1,880–2,000 m²/g provides extensive potential contact area (requires analytical confirmation).
- Fixed-Bed Gas Contact – Contaminated gas passes through a packed media bed, allowing target compounds to diffuse into the pore structure and interact with surface adsorption sites.
Technical Data
Key properties and operating parameters for FERROLOX®-XG gas purification media.
Physical & Operating Parameters
| Parameter / Property | Published Specification |
|---|---|
| Media description | Iron-functionalized lignin-based porous adsorber |
| BET surface area | Approximately 1,880–2,000 m²/g |
| Primary stated contaminant | Hydrogen sulfide |
| Media-bed height | Approximately 0.5–12 m |
| Bed pressure loss | Less than 1–15 mbar |
| Pressure range | Atmospheric to approximately 25 bar(g) |
| Empty-vessel contact time | Approximately 20 seconds–3 minutes |
| Minimum relative gas humidity | 40% |
| Preferred relative humidity | 60–80% (non-condensing) |
Safety & Operational Notice
The brochure proposes oxygen-based treatment using OXYDES-XG, but warns that partially regenerated sulfur-containing granules may ignite when exposed to oxygen. Oxygen must never be introduced without an engineered, monitored and approved process.
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Important information about FERROLOX®-XG applications, operation and safety.
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