100 Tons of Coal-Based Columnar Activated Carbon Shipped to Norway for Biogas Treatment

The Product: CTC 60, 4mm Coal-Based Columnar Carbon

Columnar activated carbon is the preferred choice for gas-phase applications for a reason. The uniform 4mm pellet shape delivers low pressure drop and steady gas flow through the filter bed, while the coal base provides the developed pore structure needed to hold contaminants over long service cycles. A CTC 60 rating confirms the adsorption capacity required to keep a biogas system running efficiently between changeouts.

Why This Grade Matters for Biogas

Raw biogas carries hydrogen sulfide (H₂S), which is corrosive to engines, pipes, and downstream equipment. Left untreated, it shortens equipment life and drives up maintenance costs. Coal-based columnar activated carbon adsorbs H₂S effectively, protecting the plant and improving the quality of the gas.

The choice of a 4mm columnar form with a CTC 60 value isn't arbitrary. It balances adsorption performance with the mechanical stability and low resistance a continuous biogas operation needs. Matching the right grade to the application is exactly what determines whether a filtration system performs or struggles.

A Three-Year Partnership Built on Solving a Real Problem

This customer didn't start with us. Before working together, they sourced activated carbon from another supplier and ran into performance problems — the material wasn't delivering the results their biogas process required.

When they came to us, we worked through the issue: identifying the right grade, matching the specification to their actual operating conditions, and delivering carbon that performed as it should. The problem was solved, and the results spoke for themselves.

Three years later, they're still ordering, now at a scale of 100 tons per shipment. That kind of repeat business isn't won with a low price. It's earned by fixing what wasn't working and staying consistent, batch after batch.

Sampling and Testing Before Shipment

At 100 tons, quality can't be assumed — it has to be verified. Before the containers were sealed, representative samples were drawn from across the production lots and sent for laboratory testing. Key parameters checked included:

• CTC value — confirming adsorption capacity meets the 60 specification
• Particle size — verifying consistent 4mm pellet dimensions
• Moisture content — ensuring the customer pays for carbon, not water
• Hardness — confirming pellets withstand handling, transport, and service
• Ash content — checking purity for the application

Testing runs on standard laboratory equipment, including a computerized adsorption analyzer for CTC and related values. Only batches within specification were cleared for packing. Every parameter was documented, so the results could travel with the shipment and be cross-checked on arrival in Norway.

Documentation and Delivery

The shipment left with a full set of paperwork: a certificate of analysis (COA), batch records, and test reports matching the delivered product. When 100 tons arrive at a biogas facility overseas, that documentation lets the customer confirm exactly what they received before it enters their process — no surprises, no guesswork.

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