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WOOD CHIPS: Renewable Energy Source and Raw Material

Wood chips are produced directly by grinding trunks and brushwood  or as a by-product of sawmill processes.

They can be utilized either as a fuel in power plants and as a row material in MDF production plants and paper mills.

The main characteristics of fuel grade Wood chips are as follows:

Net Calorific Value GJ/mt 12-13
Ash % max 4
Moisture % max 35
Particle size:
> 100 mm % max max 1
3.15 mm < 63 mm % minimum max 80
< 1 mm % max max 5
> 45 mm % max max 5-10
16 mm < 45 mm % minimum max 60-65
< 3.00 mm % max max 2

 

The main characteristics of Wood chips for MDF vary according to timber species (hard/soft wood); they concern particularly the content of bark, allowed generally up to 2-3%, and the particle size as per the following table:

Typical Specifications as Received Basis
Particle size:
> 45 mm % max 5-10
> 16 mm < 45 mm % minimum 60-65
< 3.00 mm % max 2

 

 

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Posted on

February 24, 2018