Charcoal made from birch burnt wood
Studies on the possibility of using Birch burnt wood as raw material for charcoal. For this purpose, prepared samples of intact wood and burnt wood, taken after the fire in forest stands the village of Shabrovsky in the Sverdlovsk region. Pyrolysis of wood was carried out in the temperature range of 400-700 °C when the duration30-40 min.When low temperature pyrolysis (400 °C) charcoal yield from undamaged wood significantly lower than from burnt wood, but with higher end temperature pyrolysis of this difference is smoothed, and at temperatures above600 °C yield of charcoal to both samples vary less than 1 %. apparent density charcoal of burnt wood pyrolysis temperature decreases up to 500 °C, and then increases. a similar dependence has been observed to charcoal, obtained from undamaged by fire wood. The extreme nature of the changes apparent density explains the transition carbon matrix control more streamlined structure of pyrolysis temperature increases.Research has shown that in order to charcoal a higher grade of Birch burnt wood is enough final temperature pyrolysis of about 600 °C. While the resulting charcoal has 96% fixed carbon content with minimum 90 %, ash content of less than 2 % at the maximum allowable 2,5 %. given the existing trend of poor quality wood, Birch burnt wood processing completely valid.This charcoal could well be used as a raw material for obtaining active carbon type Bau and used for thepurification of drinking water and the food industry.