SulfaCHAR™ is a cost-effective, convenient, zero-waste targeted gas-cleaning solution for the growing three-billion-dollar global problem caused by toxic and corrosive hydrogen sulfide in the renewable natural gas industry. SulfaCHAR filters hydrogen sulfide out of renewable natural gas, allowing users to drastically reduce their maintenance costs.

Biogas generated on-farm, at industrial anaerobic digesters or at wastewater treatment plants is an ideal candidate for energy use, either for electricity or thermal energy, or for upgrading to a renewable natural gas. Removing hydrogen sulfide (H2S) from the biogas is essential to ensure safe and efficient plant operation. 

SulfaCHAR is a targeted gas cleaning solution that is simple to operate and implement. The passive system directs untreated biogas through a vessel containing SulfaCHAR.

SulfaCHAR adsorbs H2S onto its surface and clean biogas exits the system ready for electricity generation. SulfaCHAR is an ideal solution for on-farm anaerobic digesters of any scale.

Benefits include:

  • Low capital cost for installation
  • Low operational burdens
  • Reduced downtime and maintenance
  • Eliminates need to store or handle toxic chemicals
  • Spent material is non-toxic and easily disposable

In Canada, 27% of landfills with gas capture systems in place utilize landfill gas (LFG) for electricity, with the remainder being used for heating or flaring it into the atmosphere. In the United States, 55% of landfills with gas capture systems in place utilize landfill gas (LFG) for electricity.

Clearly, there is plenty of room for growth when using landfill gas for energy. With the decision to utilize LFG driven greatly by capital and operating costs, providing a cost-effective and convenient method for LFG cleaning is essential.

SulfaCHAR is a targeted gas cleaning solution that is simple to operate and implement. The passive system directs untreated LFG through a vessel containing SulfaCHAR media. SulfaCHAR adsorbs H2S onto its surface and clean biogas exits the system ready for electricity generation.

SulfaCHAR has proven success cleaning landfill gas for electricity production. Benefits include:

  • A 30% by weight sulfide removal capacity that prevents engine corrosion from hydrogen sulfide
  • Reduced siloxanes in LFG to avoid the formation of abrasive microcrystalline silica in the engines
  • The system is easy to implement and has a small environmental footprint
  • It is non-toxic, with simple change-out and disposal

Hydrogen sulfide has a very distinctive rotten-egg odour and can be generated from the processing of a variety of organic materials. Some applications that experience issues with odour are:

  • Wastewater treatment plants
  • Food rendering plants
  • Petroleum product transport and storage

SulfaCHAR is a targeted sulfide removal system that is simple to operate and implement. The passive system directs untreated LFG through a vessel containing SulfaCHAR media.

SulfaCHAR adsorbs sulfide onto its surface and clean, odour-free air exits the system. SulfaCHAR is a convenient solution for removing offensive sulfide based odour.

Benefits include:

  • Low costs for implementation and operation
  • No chemical management required
  • Easy change out and disposal

Minimal monitoring required