Use of albumin in the composition of wood pellets in order to improve their quality

Abstract

Chemical treatment of wood albumin in the technology of pellets is considered from the point of view of the possible directions of chemical reactions in the interactiontion of its reactivity with components of wood – lignin and polysaccharides (cellulose and hemicellulose). It has b een shown that at high temperature and pressure parameters for the compression step – primary to obtain pellets technology, car-bonyl, carboxyl, amine and amide functional groups of albumin may enter into an esterification reaction involving the hydroxyl groups of the reactive lignin and also a reaction of formation of new hydrogen bonds between two electronegative atoms which, together as oxygen and nitrogen acts. Using albumin as a glue with its variation rate of from 0.1 to 0.5% to a. d. a wood composite pellets composed of different kinds of wood resulting in improved performance pellets complex values characterizing their mechanical strength. Pellets obtained with the introduction of albumin in their composi-tion, meet all the requirements for the materials of the fuel use.