人工片状钙基脱硫剂的试制及其性能研究

介绍了用于沸騰炉燃煤锅炉脱硫的人工片状钙基脱硫剂的生产工艺,并用固定床反应器、压汞仪,扫描电子显微镜、强度仪等研究了该脱硫剂的物理化学特性。实验表明,采用该工艺生产的脱硫剂具有良好的抗压抗磨强度和耐水性,由于具有合理的孔分布,其固硫能力是石灰石的2—3倍,钙利用率可达40％,适用于850℃—1000℃的较宽温度范围。在3台沸腾炉共7个工况下的工业实验证明了该脱硫剂的上述特性。

Studies on the "Yichang" Synthetic Sor-bent for Sulfur Dioxide removal in Fluidized Bed Combustion of Coal

As an alternative to natural limestone for sulfurdioxide removal in fluidized bed combustion of coal, an advanced synthetic sorbent was developedin Tsinghua University and a pilot manufacture with output of 5000 tons per year has been set up in Yichang city, Hubei province, China. Plant tests ware conducted on 3 fluidized bed boilers with steam capacities of 6,10 and 10t/h under 7 operating conditions. The technique for the production of "Yichang" sorbent is described; the characteristics of "Yichang" sorbent, such as composition, pore size distribution, microstructure, strength, water-tolerance and sulfur capture capacity are demonstrated; and results of plant tests are presented and discussed. Finally, the technology is economically analyzed and compared with other sulfur removal methods.