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Non-Woody Pellets are densified biofuel made from grinded or milled biomass with or without additives and unitized as cylinders, usually diameter < 25 mm, random length and typically 3,15 mm to 40 mm with broken ends, obtain by mechanical compression
NOTE: The raw material for non-woody pellets can be herbaceous biomass, fruit biomass, aquatic biomass or biomass blends and mixtures. They are usually manufactured in a die with total moisture content usually less than 15 % of their mass.
Non-woody pellets have high ash, chlorine, nitrogen and sulphur content and major element contents, so non-woody pellets are recommended to be used in appliances, which are specially designed or adjusted for this kind of pellet.
Our platform covers the trading of the world’s most common standards (including ISO) & non-standard Non-Woody Pellets products.
*Exact technical specification of Non-standard Non-Woody Pellet products can be inserted on the Electronic Trading System and published by suppliers.
| Cereal Straw pellets | Miscanthus pellets | Reed canary grass pellets | Analysis Method |
|---|---|---|---|
| 2.1.1.2 Straw parts | 2.1.2.1 Grasses, Whole plant | 2.1.2.1 Grasses, Whole plant | ISO 17225-1 |
| Unit | Cereal Straw pellets | Miscanthus pellets | Reed canary grass pellets | Analysis Method | |
| Diameter, D a | mm | D06 to D10 (±1) | D06 to D10 (±1) | D06 to D10 (±1) | ISO 17289 |
| Length, L b | mm | 3,15 ≤ L ≤ 40 | 3,15 ≤ L ≤ 40 | 3,15 ≤ L ≤ 40 | ISO 17289 |
| Diameter, D a | mm | D12 to D25 (±1) | D12 to D25 (±1) | D12 to D25 (±1) | ISO 17289 |
| Length, L b | mm | 3,15 ≤ L ≤ 50 | 3,15 ≤ L ≤ 50 | 3,15 ≤ L ≤ 50 | ISO 17289 |
| Moisture, M | As received, w-% | M10 ≤ 10 | M10 ≤ 10 | M12 ≤ 12 | ISO 18134-1, ISO 18134-2 |
| Ash, A c | Dry Basis, w-% | A6.0 ≤ 6, A6.0+ > 6d | A4.0 ≤ 4, A6.0 ≤ 6 | A8.0 ≤ 8, A8.0+ > 8d | ISO 18122 |
| Mechanical Durability, DU | As received, w-% | DU97.5 ≥ 97,5 | DU97.5 ≥ 97,5 | DU96.5 ≥ 96,5 | ISO 17831-1 |
| Fines, F e | As received, w-% | F1.0 ≤ 1,0 | F1.0 ≤ 1,0 | F1.0 ≤ 1,0 | ISO 18846 |
| Additives f | Dry Basis, w-% | Type and amount to be stated | Type and amount to be stated | Type and amount to be stated | |
| Net Calorific Value, Q | As received, MJ/kg or kWh/kg | Minimum value to be stated | Minimum value to be stated | Q14.5 ≥ 14,5; Q4.0 ≥ 4,0 | ISO 18125 |
| Bulk Density, BD | As received, kg/m3 | BD600 ≥ 600 | BD580 ≥ 580 | BD550 ≥ 550 | ISO 17828 |
|
Ash melting behaviour g |
°C | Should be stated | Should be stated | Should be stated | ISO 21404 |
| Unit | Cereal Straw pellets | Miscanthus pellets | Reed canary grass pellets | Analysis Method | |
| Nitrogen, N | Dry Basis, w-% | N0.7 ≤ 0,7 | N0.5 ≤ 0,5 | N 2.0 ≤ 2,0 | ISO 16948 |
| Sulphur, S | Dry Basis, w-% | S0.10 ≤ 0,10 | S0.05 ≤ 0,05 | S0.20 ≤ 0,20 | ISO 16994 |
| Chlorine, Cl | Dry Basis, w-% | Cl0.10 ≤ 0,10 | Cl0.08 ≤ 0,08 | Cl0.10 ≤ 0,10 | ISO 16994 |
| Arsenic, As | Dry Basis, mg/kg | ≤ 1 | ≤ 1 | ≤ 1 | ISO 16968 |
| Cadmium, Cd | Dry Basis, mg/kg | ≤ 0,5 | ≤ 0,5 | ≤ 0,5 | ISO 16968 |
| Chromium, Cr | Dry Basis, mg/kg | ≤ 10 | ≤ 10 | ≤ 10 | ISO 16968 |
| Copper, Cu | Dry Basis, mg/kg | ≤ 20 | ≤ 20 | ≤ 20 | ISO 16968 |
| Lead, Pb | Dry Basis, mg/kg | ≤ 10 | ≤ 10 | ≤ 10 | ISO 16968 |
| Mercury, Hg | Dry Basis, mg/kg | ≤ 0,1 | ≤ 0,1 | ≤ 0,1 | ISO 16994 |
| Nickel, Ni | Dry Basis, mg/kg | ≤ 10 | ≤ 10 | ≤ 10 | ISO 16968 |
| Zinc, Zn | mg/kg | ≤ 100 | ≤ 100 | ≤ 100 | ISO 16968 |
| A | B | Analysis Method |
|---|---|---|
| 2 Herbaceous biomass | 2 Herbaceous biomass | ISO 17225-1 |
| 3 Fruit biomass | 3 Fruit biomass | |
| 4 Aquatic biomass | 4 Aquatic biomass | |
| 5 Blends and mixtures | 5 Blends and mixtures |
| Unit | A | B | Analysis Method | |
| Diameter, D b | mm | D06 to D10 (±1) | D06 to D10 (±1) | ISO 17289 |
| Length, L c | mm | 3,15 ≤ L ≤ 40 | 3,15 ≤ L ≤ 40 | ISO 17289 |
| Diameter, D b | mm | D12 to D25 (±1) | D12 to D25 (±1) | ISO 17289 |
| Length, L c | mm | 3,15 ≤ L ≤ 50 | 3,15 ≤ L ≤ 50 | ISO 17289 |
| Moisture, M | As received, w-% | M12 ≤ 12 | M12 ≤ 12 | ISO 18134-1, ISO 18134-2 |
| Ash, A c | Dry Basis, w-% | A6.0 ≤ 6 | A10 ≤ 10 | ISO 18122 |
|
Mechanical Durability, DU |
As received, w-% | DU97.5 ≥ 97,5 | DU96 ≥ 96 | ISO 17831-1 |
| Fines, F d | As received, w-% | F2.0 ≤ 2,0 | F3.0 ≤ 3,0 | ISO 18846 |
| Additives e | Dry Basis, w-% | Type and amount to be stated | Type and amount to be stated | |
| Net Calorific Value, Q | As received, MJ/kg or kWh/kg | Q14.1 ≥ 14,1 or Q3.9 ≥ 3,9 |
Q13.2 ≥ 13,2 or Q3.7 ≥ 3,7 |
ISO 18125 |
| Bulk Density, BD | As received, kg/m3 | BD600 ≥ 600 | BD600 ≥ 600 | ISO 17828 |
|
Ash melting behaviour f |
°C | Should be stated | Should be stated | ISO 21404 |
| Unit | A | B | Analysis Method | |
| Nitrogen, N | Dry Basis, w-% | N1.5 ≤ 1,5 | N2.0 ≤ 2,0 | ISO 16948 |
| Sulphur, S | Dry Basis, w-% | S0.20 ≤ 0,20 | S0.20 ≤ 0,20 | ISO 16994 |
| Chlorine, Cl | Dry Basis, w-% | Cl0.20 ≤ 0,20 | Cl0.30 ≤ 0,30 | ISO 16994 |
| Arsenic, As | Dry Basis, mg/kg | ≤ 1 | ≤ 1 | ISO 16968 |
| Cadmium, Cd | Dry Basis, mg/kg | ≤ 0,5 | ≤ 0,5 | ISO 16968 |
| Chromium, Cr | Dry Basis, mg/kg | ≤ 50 | ≤ 50 | ISO 16968 |
| Copper, Cu | Dry Basis, mg/kg | ≤ 20 | ≤ 20 | ISO 16968 |
| Lead, Pb | Dry Basis, mg/kg | ≤ 10 | ≤ 10 | ISO 16968 |
| Mercury, Hg | Dry Basis, mg/kg | ≤ 0,1 | ≤ 0,1 | ISO 16994 |
| Nickel, Ni | Dry Basis, mg/kg | ≤ 10 | ≤ 10 | ISO 16968 |
| Zinc, Zn | mg/kg | ≤ 100 | ≤ 100 | ISO 16968 |
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TRADERSbiomass’ SBTA (Standard Biomass Trading Agreement) has been developed only to facilitate trading of biomass between licensed users of TRADERSbiomass all over the globe.
