Acid-gas carbon first, large-pore carbon second, in series.
Specialized carbon systems to clean renewable biogas so it can safely power engines.
Acid-gas carbon first, large-pore carbon second, in series.
Pellets in the acid-gas tank, granules for final polishing.
Chemically coated to destroy H₂S instead of just trapping it.
One type of carbon cannot fix both biogas problems.
Biogas has two main enemies: Hydrogen Sulfide (an acid gas that causes severe rust) and Siloxanes (chemicals that turn into glass/sand when burned). Plain carbon cannot catch the acid gas, so we use a specially treated carbon first. Then, the gas flows into a second tank of plain carbon with extra-large pores specifically designed to catch the bulky siloxane chemicals.
100–150
g/100g H₂S
Measures how much toxic acid gas the carbon can absorb before it is full.
The carbon is one stage in a train, not the whole of it.
The raw, wet biogas is run through a chiller to squeeze all the water out, so the carbon filters don't get flooded.
The dry gas passes through Tank 1 (treated carbon). This instantly removes all the acid gas that would otherwise cause massive rust.
The gas then passes through Tank 2 (plain carbon with large pores). This catches the siloxanes, ensuring no glass or sand forms in the engine.
The fully cleaned biogas is safely burned in a massive engine to generate clean, renewable electricity.
The grades that fit bio gas industry — and what each is good at.
Special Chemical Coating
This carbon is coated with special chemicals that destroy Hydrogen Sulfide on contact. It goes in the very first tank to protect everything downstream.
Large Pore Carbon
Plain carbon, but chosen specifically because it has very large pores. These big pores are perfect for catching bulky siloxane chemicals before they reach the engine.
What each property actually governs once the bed is running.
Shows exactly how much acid gas the first tank can absorb before you need to buy new carbon.
Critical for the second tank. Bulky siloxane molecules need large holes to get trapped in.
Even after drying, biogas is never perfectly dry. The carbon must still work in slightly damp conditions.
The acid gas requires a special chemical carbon, while the siloxanes require plain carbon with giant pores. If you try to mix them, neither works well, and you waste money.
They are chemicals often found in soaps and shampoos that end up in landfills and sewers. When they turn into gas and get burned in an engine, they literally turn into glass sand and destroy the engine parts.
No. If you push wet gas into the carbon, the water acts like mud in a sponge. The carbon will be instantly ruined and will not clean your gas.
Send the stream analysis and the operating conditions, and we will come back with the grade, the bed size and the changeout interval the duty actually needs.