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About raw materials - Biomass pellets

Biomass pellets

Biomass Pellets are produced at the Bionet plant in Onega (Arkhangelsk region, Russia) from technical hydrolytic lignin placed on the industrial wood residual landfill of the former Onega hydrolysis plant in Onega and owned by Bionet OJSC.

Hydrolized technical lignin is a large-scale industrial wood residual generated by acid hydrolysis of plant residues of wood processing (chips and sawdust of conifers and hardwoods) and accumulated by the processing enterprise in an established manner on specialized storage facilities in an open manner.

Biomass pellets

Lignin hydrolysis technical is a loose polydisperse substance with a pronounced fibrous structure of particles. Of natural substances, the physical and thermal characteristics are closest to milling peat. Lignin is a shredded material that does not have large inclusions. Partly there may be minor inclusions of metal, stones, glass, wood chips, which are completely extracted during the rough cleaning of raw materials.

From the physicochemical point of view, this woody biomass pellets is a fine dispersed brown-colored sawdust (moisture content 55-652%) with fractional composition from 0.5 to 25.0 mm. The content of mineral and organic substances, heavy metals and other contaminants fully comply with the national and European standards for raw materials for the production of wood pellets, as evidenced by the chemical safety report CSR and studies conducted by SGS.

The hydrolysis technical lignin does not contain ethyl alcohol and the substance having nutritional value is a finely dispersed, woody sawdust mass and has the following indices:


1. Humidity of raw materials (Lignin) on the heap % 65 - 67
2. Bulk density hydrolytic lignin on the dump at a humidity of 65% kg / m3 930 - 1000
3. Ash content of lignin % 1-9
4. Granulometric composition    
  residue on a 90 μm % 15
  residue on 200 μm % 80
  residue on 1 μm % 5


All raw materials used for the production of pellets are FSC-certified material.

At the plant, raw materials are delivered by road from the storage site located 4 km from the plant site. The main result of biomass pellets processing is an increase in the calorific value of wood to NCV≥23 mJ / kg in terms of absolutely dry matter.