Research of Wood Thermal Modification Process in Flue Gases Environment

Abstract

Thermal modification is a modern demanded technology allowing receiving natural environmentally friendly material with increased bioproofness and dimensional stability. However, the known technologies of heat treatment of massive wood are rather power-intensive therefore an urgent task is to decrease the energy consumption rate of this process. For this purpose the authors have suggested the technology at which the flue gases, received by gasification of waste of the wood processing industry, act as the agent of processing. The results of the research of this process are presented in the article, the rational modes of processing for concrete types of timber (oak, pine and birch, thickness from 30 to 60 mm) are defined and also the interrelation between the moist characteristics of the wood fuel used for receiving flue gas and the technological modes of processing of massive wood are established. It is also defined that the thickness and breed of material, namely the maintenance of pentosanes as a part of the modified wood exerts impact on the process of thermal decomposition of timber.