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Air Filters and Chemical Filtration
Sulfur Compound Molecular Filter
A hybrid adsorbent filter formulated for hydrogen sulfide, sulfur dioxide and odorous mercaptans in demanding industrial air streams.
- H2S and SO2 Control
- Hybrid Reactive Media
- Corrosion Protection
- High-Capacity Deep Bed
Product Introduction
This molecular filter contains chemically treated alumina, activated carbon or co-formed hybrid pellets with high reactivity toward reduced and oxidized sulfur compounds. The adsorbent bed is held in a robust perforated cassette that controls residence time and prevents channeling. It is used where sulfur gases create corrosion, odour or process-yield problems, including wastewater, pulp processing and industrial control environments. Media grades can be arranged in stages when VOCs are also present.
Key Features
Spherical pellets maintain open airflow passages through a deep media bed.
Corrosion-resistant retainers confine media in aggressive industrial environments.
Separate media stages prevent VOC loading from consuming sulfur-specific capacity.
Customer Product Concerns
Sulfur gases can cause rapid electronic corrosion and severe odour at concentrations too low for particle filters to affect.
Hydrogen sulfide corrodes copper traces inside control cabinets.Reactive sulfur media removes H2S before make-up air reaches sensitive electronics.
High humidity shortens the apparent capacity of conventional carbon.Hybrid or impregnated pellets are selected for the expected sulfur species and moisture level.
Mercaptan odour persists after particulate treatment.A chemically active deep bed captures reduced-sulfur molecules that pass through dust filters.
A mixed contaminant stream exhausts one adsorbent prematurely.Dedicated sulfur and VOC stages divide the load according to each media's adsorption chemistry.
Typical Applications
Wastewater treatment plantsPulp and paper control roomsOil and gas facilitiesBiogas conditioning roomsIndustrial electronics protection
Technical Parameters
Typical construction values for a sulfur-compound molecular filter are listed below.
| Core Material | Impregnated activated alumina, treated carbon or hybrid pellets for H2S, SO2 and mercaptans |
|---|---|
| Panel Thickness | 150–300 mm overall filter depth |
| Effective Width | 305–610 mm nominal cell width |
| Maximum Length | Up to 762 mm nominal cell height |
| Steel Facing Thickness | 0.8–1.5 mm coated or 304 stainless-steel casing |
| Core Density | 600–850 kg/m³ packed hybrid-media bulk density |
| Thermal Conductivity | 0.12–0.28 W/(m·K) for the pellet bed |
| Surface Finish | Brushed 304 stainless steel or corrosion-resistant powder coating |
| Joint Type | Deep-bed cassette with perforated retainers, sealed corners and EPDM perimeter gasket |
| Customization | Available based on the intended application and operating environment. |
Available Options
H2S-selective hybrid pelletsSO2 and acid-gas media blendStainless-steel refillable cellSeries arrangement with VOC carbon
Planning a Sulfur Compound Molecular Filter specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
