USEFUL 

RESOURCES

HER KOMMER DET EN VELDIG KORT TEKST TIL MATERIALET SOM PRESENTERES UNDER

About 20% of the wood is extracted as oligosaccharides from Hemicellulose

About 30% of the wood is extracted as monosaccharides from Cellulose and Hemicellulose

About 50% is a pulp with low ash content and high energy density

Introduction to Wood Raw Materials

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Hierarchy of Wood Raw Materials

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LOGWOOD
Sawlogs are the logs of size and quality that are suitable for sawmills, with the highest prices.
PULPWOOD
Pulpwood (logs) are too small, or of too low quality, to be sawlogs. Mainly raw material for the Pulp & Paper industry. Significantly lower priced than sawlogs. In South East USA also used as raw material for pellets.
WOODCHIPS
Woodchips from sawmills are also suitable raw material for the Pulp & Paper Industry. Usually priced at the same level as pulpwood logs, or slightly lower.
SAWDUST
Sawdust from sawmills cannot be used by Pulp & Paper Industry, but is used for making boards and pelles. In most of the world much lowered priced than woodchips and pulpwood.
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Energy wood (logs), which is of a quality not suitable for pellets or boards, but used as fuel. This is also lower priced than woodchips and pulpwood.
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Pulpwood (logs) are too small, or of too low quality, to be sawlogs. Mainly raw material for the Pulp & Paper industry. Significantly lower priced than sawlogs. In South East USA also used as raw material for pellets.

Sawlogs are the logs of size and quality that are suitable for sawmills, with the highest prices.

Sawdust from sawmills cannot be used by Pulp & Paper Industry, but is used for making boards and pellets. In most of the world much lowered priced than woodchips and pulpwood.

Energy wood (logs), which is of a quality not suitable for pellets or boards, but used as fuel. This is also lower priced than woodchips and pulpwood.

Woodchips from sawmills are also suitable raw material for the Pulp & Paper Industry. Usually priced at the same level as pulpwood logs, or slightly lower.

SAWMILLS
PULP & PAPER

Paper

Cellulose

32-35%

12-15%

Boards

Pellets

50-55%

50-70% sawlogs
30-50% pulpwood
Woodchips from sawmills to Pulp
& Paper
Sawdust,
residue

Raw Material Flows

Typical in Europe

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WOODCHIPS

Woodchips from sawmills are also suitable raw material for the Pulp & Paper Industry. Usually priced at the same level as pulpwood logs, or slightly lower.