One of these species is wood pellets that are made from wood production waste by pressing under high pressure. Pellets are cheap in production, environmentally more clean than other types of fuel, solid fuel boilers SAS, for example, are designed to burn such granules and heating. Pellets themselves have great heat -intensive energy comparable to stone coal, and are popular in European countries. In the manufacture of pellets, agricultural waste, peat, sawdust waste is also used, and gluing occurs due to the natural component of lignin, which is part of the wood under the influence of high temperature. When combustion of granules, carbon dioxide is released not so aggressive for the environment.
Pellets themselves have
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