Pulp (paper) - Alternatives To Wood Pulp

Alternatives To Wood Pulp

See also: Tree-free paper and Fibre crop

Today, some people and groups advocate using field crop fibre or agricultural residues instead of wood fibre as being more sustainable. However, wood is also a renewable resource, with about 90% of pulp coming from plantations or reforested areas. Non-wood fibre sources account for about 5-10% of global pulp production, for a variety of reasons, including seasonal availability, problems with chemical recovery, brightness of the pulp etc. Non-wood pulp processing requires a high use of water and energy.

Nonwovens are in some applications alternatives to paper made from wood pulp, like filter paper or tea bags.

Comparison of typical feedstocks used in pulping
Component Wood Nonwood
Carbohydrates 65-80% 50-80%
Cellulose
40-45% 30-45%
Hemicellulose
23-35% 20-35%
Lignin 20-30% 10-25%
Extractives 2-5% 5-15%
Proteins < 0.5% 5-10%
Inorganics 0.1-1 % 0.5-10 %
SiO2
< 0.1% 0.5-7 %

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