Biochar from the straw-stalk of rapeseed plant

Agricultural residues are an important and inexpensive bioresource for ener gy production. In this study the slow pyrolysis technique has been applied to the straw and stalk of rapeseed plant, and the effects of temperature an d heating rate on the yields and characteristics of the solid products (bio chars) have been investigated. Experiments were performed in a tubular reac tor under nitrogen atmosphere at constant heating rate (5 degrees C min(-1) ) and varying temperatures (400-900 degrees C) and at constant temperature (800 degrees C) and varying heating rates (5, 10, 15, degrees C min(-1)). T he biochars obtained are carbon rich, reactive, and relatively pollution-fr ee potential solid biofuels.