| 摘要 |
<p>A process for the preparation of active carbon from urban waste. The waste is first stored to remove foreign materials and the size of the waste particles is reduced. The waste is dried under anaerobic conditions at a temperature range of 100 °C - 150 °C and partially pyrolysed at a temperature of about 140 °C - 400 °C. The obtained product is granulated and the granules are carbonized under anaerobic conditions at a temperature of about 120 °C - 500 °C. The carbonized granules are activated in the presence of steam and combustion gases at 750 °C - 900 °C. Finally, the activated granules are purified by rinsing in an aqueous HCl solution, and subsequently drying the activated carbon.</p> |
