The quality standards of pellets are defined by the European standard (ISO 17225-2:2014 “Solid biofuels – Fuel specifications and classes – Part 2: Graded wood pellets”). Pellets are classified into three types: A1, A2, and B. The distinctions are due to the raw materials used and their quality. For end users, the relevant wood pellet class is A1. A2 and B are used in industrial settings such as power plants.
Description
Pellets online
A wood pellet, with or without additives, is a compressed feedstock material that is normally cylindrical with broken ends and has a length of 5mm to 40mm and a maximum diameter of 25mm. The moisture content of wood pellets is typically less than 10%, with an ash content of up to 3%. Pellets were typically produced using a pellet mill.
The advantages of pellets over log wood or wood chips include, among other things, the ability to optimise combustion due to uniform fuel, lower transportation costs due to increased fuel bulk density, and improved thermal and combustion properties.
