脱硫脱硝活性炭的研究

Department of Chemical Engineering, North University of China,Taiyuan 030051, China; 2.Development Division of Science and Technology,Shanxi Xinhua Chemical Factory,Taiyuan 030008,China

摘要: 以煤为原料试制了脱硫脱硝活性炭，并模仿烟道气条件进行了脱硫脱硝实验，结果表明：以长焰煤为主制成的活性炭脱硫性能好。为保证活性炭的耐磨强度，必须加入适量的焦煤，其加入量的最佳质量分数为25%。采用炭化温度在650℃以上，活化温度在850℃以上的制备工艺，并在活化后增加后氧化工序，可使活性炭的脱硝性能大大提高。
- 活性炭，脱硫，脱硝，烟道气
Abstract: Activated carbons were prepared from various coals and employed to remove NOx and SOx from a simulated flue gas. Results show that the best activated carbon tested, in terms of de-NOx and de-SOx performance, is produced from sub-bituminous coal. The addition of coking coal can decrease the abrasive wear of the activated carbon in a fluidized bed, and the optimum amount of coking coal is determined to be 25w/%. A post-oxidation process can be used to greatly improve the de-SOx and de-NOx performance of the resultant activated carbons.
- Activated Carbon