Lignin hydrolyzny, Zaporizhia region.

Lignin is the second main main part of wood after cellulose (from 19 to 28% depending on the species). This is an amorphous substance of dark brown color.
In terms of physical properties, lignin is close to peat, but unlikepeat, lignin belongs to renewable energy sources. Due to the increased carbon content (59-67%) and the insignificant content of carboxyl groups, the energy value of hydrolyzable lignins in terms of the yield of volatile combustible components is significantly higher than that of wood. The content of volatile substances in the combustible mass of lignin is 65-68%. The content of combustible substances in hydrolyzable lignins is 58-75%. Being released when lignin is heated, they contribute to the acceleration of the ignition of part of the fuel and its burning!
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