Abstract
The elementary composition, ash, volatile material, and fixed carbon contents of charcoals from lignocellulosic materials were determined in relation to carbonization temperatures. Higher heating values were also calculated for these materials, which included cellulose, hardwood and softwood lignin, beech wood, spruce wood, yellow pine, cotton stalk, rice hulls, grass, hazelnut shell, olive husk, corncob, wheat straw, and pine needles. A significant correlation between higher heating value of lignocellulosic fuels and their carbon contents was demonstrated.