【摘要】 煤燃烧过程中,采用吸附剂控制超细颗粒物的生成具有重要的理论和实践意义。本文主要采用钛的吸附剂对小龙潭褐煤的燃烧进行调节和控制,滴管炉煤粉燃烧试验测试了在3个温度(850℃、1100℃和1125℃)下,添加剂对超细颗粒物粒度分布的影响,并对其形貌和作用机理进行了较为深入的研究和探讨。研究证明这种采用添加剂的方法可以有效地抑制超细颗粒物的生成,并且实验发现在一定的温度范围内吸附剂的作用效果达到最佳。更多还原

【Abstract】 The control of the formation of submicron-sized particulates during the combustion of pulverized coal by using a sorbent is of major theoretical and practical significance. Titanium sorbent was mainly used to regulate and control the combustion of Xiaolongtan brown coal. An experimental investigation was carried out at three temperatures (850, 1100 and 1125℃) in a drop-tube furnace reactor to identify the influence of additives on the distribution of submicron-sized particulates along with an in-depth study and discussion of the particulate morphology and function mechanism. The results of the study have shown that the injection of additives can effectively suppress the formation of submicron-sized particulates and within a certain range of temperatures the effectiveness of a proper sorbent can be brought to a maximum value as verified by the experiments.更多还原