AxTrap 4000

Hydrogen sulfide (H2S) and light mercaptans are common contaminants that must be removed from various gases such as air, CO2, natural gas, biogas and landfill-derived methane. Such Sulfur species are extremely corrosive and must be removed to meet fuel gas specifications, pipeline specifications and air quality regulations. We offer the AxTrap™ 4000 Series of dry, granular media scavengers to safely and effectively remove these common sulfur.

AxTrap™ 4000 Series products is based on patented, proprietary mixtures of iron oxide adsorbent and/or mixed metal oxides – on an inert, inorganic carrier. The result is a particularly robust, granular adsorbent in which the metal oxide matrix provides a firmly bound active phase which is non-toxic, non-hazardous, non-pyrophoric and environmentally safe in both fresh and spent condition.

Applications of AxTrap™ 4000

the many applications of the AxTrap™ 4000 Series such as wastewater treatment, natural gas treatment and landfill gas or biogas upgrading are among the most effective. Purification of methane (as a renewable energy source) produced as “Biogas”, often requires removal of carbon dioxide, moisture and various other contaminants such as hydrogen sulfide, light mercaptans and more. Effective removal of the mercaptans (rather than conversion to heavier disulfides)

improves the quality of the biogas or landfill gas for direct consumption on site or for sale; improving the efficiency and reducing the OpEx of downstream processes. The simplicity of the AxTrap™ 4000 Series is ideal for a wide range of applications, as it is well-suited to the water saturated conditions typical of biogas, landfill and digester gas. AxTrap™ 4000 Series scavengers are effective in anaerobic conditions and achieve even higher sulfur loadings when sufficient oxygen is present. Therefor the product is widely used for H2S removal from biogas.

Axens AxTrap™ 4000 Series key features

• Lower stable pressure drop
• Safer, easier, and cheaper change outs
• Improved chemistry for an optimized sulfur removal efficiency:
  • Specifically created matrices of different iron oxides
  • Greater H2S capacity to treat even weight percent inlet concentrations to ppm outlet specifications
  • Mostly inert elemental sulfur and stable iron sulfides formation
  • Efficient mercaptans removal, which reduces the total sulfur with no conversion to disulfides
  • Good resistance to non-methane VOC’s and BTX contamination
  • Effective at any level of CO2

Extensive supporting services

We at D&F Techniek can offer customized support ranging from simply supplying material to offering a fully engineered technical solution including a basic system design, media supply, detailed engineering, fabrication packages, equipment supply, and spent media handling. We can offer the best solution for your biogas treatment with adsorbent materials for sulfur removal.

We are happy to help you make the right choice. Fill in the contact form or contact us to get advice for your situation.