公开(公告)号：US4372926A

公开(公告)日：1983-02-08

申请号：US256533

申请日：1981-04-22

申请人： Klaus E. Gude ,  Karsten S. Felsvang ,  Everett L. Coe

发明人： Klaus E. Gude ,  Karsten S. Felsvang ,  Everett L. Coe

IPC分类号： B01D46/02 ,  B01D53/50 ,  B01D53/81 ,  B01J8/00 ,  C01B17/00

CPC分类号： B01D53/50 ,  B01D46/02

摘要： In connection with the desulfurization and dedusting of flue gas where use is made of a combined spray drying and absorption and the material produced by this process is filtered off from the gas stream together with fly ash, a heating of the flue gas is performed prior to its discharge into the atmosphere by admixture of hot, non-purified flue gas. This admixture takes place so that the flue gas serving for the reheating passes through only a part of the available filter area, which allows the remaining part of the filter area to be kept at a relatively low temperature. This results in a particularly high sulfur dioxide absorption being achieved during the passage of the flue gas through the filter.A baghouse unit divided up in a special manner can be used in the process.

摘要翻译： 关于使用组合的喷雾干燥和吸收的烟道气的脱硫和除尘，并且通过该过程产生的材料与飞灰一起从飞灰中滤出，烟道气的加热在 通过混合热，非纯化的烟气排放到大气中。 发生这种混合物，使得用于再加热的烟道气仅通过可用过滤器区域的一部分，这允许过滤器区域的剩余部分保持在相对低的温度。 这导致在烟道气通过过滤器期间实现特别高的二氧化硫吸收。 在此过程中可以使用以特殊方式分割的袋式除菌装置。