This paper compares several methods of dust catching and desulfuration, suggests to use milk of lime as the dust catching and sulfur dioxide absorbing material, and makes an analysis of the results obtained. 针对某厂加热炉的除尘和脱硫,对几种不同的处理方法进行比较,对该工程的具体情况,提出采用石灰乳作为原料,进行除尘及脱硫,并就应用的结果进行分析。