Biogas Activated Carbon Scrubber
Reliable and Clean Scrubbing for Biogas with Activated Carbon Scrubbers

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Overview
CRA’s Dry Scrubbers provide final-stage purification of biogas and renewable natural gas (RNG), removing residual hydrogen sulfide (H₂S), odors, and trace contaminants. By reducing the , they safeguard gas engines, turbines, membranes, and catalytic converters. Available in single- or dual-vessel configurations, these systems use impregnated or non-impregnated carbon media tailored to biogas composition, moisture, and contaminant profile for maximum reliability
Key Benefits
Removes residual H₂S and odorous compounds from biogas streams
Prevents corrosion and abrasive wear in CHP engines, turbines, compressors, and membrane skids
Optimized vessel design and media selection ensure consistent flow with minimal resistance
Pre-filtration and drainage options maintain carbon efficiency in high-humidity or water-saturated gas
No hazardous waste, no chemical storage, and no secondary pollution
The CRA Edge
Decades of gas treatment experience with 100+ chemical scrubbers installed around the world for diverse applications
From modeling to fabrication, CRA delivers turnkey systems with fans, pumps, dosing, and automation
CRA provides a suite of tailored, complementary products designed to meet all your biogas needs
Engineered to ensure clean gas quality, odor control, and protection of downstream equipment















