Welcome to CHAR Technologies, Home of SulfaCHAR™

Developed by CHAR Technologies, 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.

SulfaCHAR™ is:


  • SulfaCHAR™ is the most cost-effective H2S removal product based on cost per kilogram of H2S removed, providing over 50% savings compared to similar systems
  • The simplicity of the system requires little capital infrastructure and low operator attendance, making it an accessible option for facilities of any scale.


  • SulfaCHAR™’s high sulfur capacity, compared to similar systems, means that the material lasts longer and requires less change outs
  • SulfaCHAR™ is non-toxic and doesn’t solidify into large pieces making it easier to change-out
  • Minimal monitoring required.


  • SulfaCHAR™ is made from organic waste material, such as anaerobic digestate
  • SulfaCHAR™ converts hydrogen sulfide into beneficial forms of sulfur, allowing spent SulfaCHAR™ to be reused as a sulfur rich biochar fertilizer.

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Latest from @SulfaCHAR on Twitter

CHAR Technologies Ltd. Announces Approval of $1 Million Grant https://t.co/CkBhL619iI
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CHAR Technologies Named to CIX 2016 Top 20 Most Innovative Companies! https://t.co/vu5NCUqgzb https://t.co/Vz9pfDftQM
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