Steam Treatment of Wood in Close System

Abstract

The present work consists to determine the reactivity of argania

wood after its steam treatment at the temperature T_T in autoclave.

The thermogravimetric study in dynamic pyrolysis mode under

T_T (T_T = 153; 169; 200; 236 and 250°C) and R (R = 3; 6; 9 and

12) indicates that the wood present the same type of losses before

and after treatment with various intensities. Consequently the light

organic materials the quantity of hemicellulose and lignin in this

wood are modified by this treatment while the cellulose remains

practically intact. Furthermore the observed modifications are due

to the action of the saturating water pressure, and not to the applied

temperature. The tratment with steam in closed system could be

used to modify the composition of argan wood essentially for

hemicellulose and lignin constituents.