气溶胶与颗粒物去除系统 (AFAS) 和文丘里净气机一样,使用惯性原理分离气溶胶。
在这种情况下,高压喷嘴或双流体喷嘴会喷出尽可能快与小的液滴。气溶胶会因为惯性而与这种液滴产生碰撞。在第二步(聚结阶段),气溶胶与液滴形成的凝聚物与气流分离。
借助合适的陶瓷滤棒、烛式或袋式过滤器,可以分离液体或固体气溶胶。滤烛通常用于分离液体气溶胶。气体在通过过滤器后即得到净化。扩散和阻挡效果会导致气溶胶与滤烛密集填充的材料发生碰撞,继而粘附在材料表面上。
袋式过滤器用于使固体气溶胶沉积,前提是可以排除水蒸汽的冷凝液。
GEA's spray drying evaporation is a simple process that requires limited attention from the operator while maintaining high reliability. It can be easily integrated with either existing or new WFGD.
Environmental pollution of heavy metals is increasingly becoming a problem and global concern. In addition to the calomel process, often used in the field of non-ferrous metal production, GEA uses wet Electrostatic Precipitators (ESP), Spray Drying Absorption (SDA) and Ceramic Catalyst Candles (BisCat) to reduce heavy metals from flue gas.
Bubble Columns feature a high liquid to gas volume ratio, beneficial when conducting rather slow reactions in the liquid phase as large reaction volumes can be realized. Ideal when dry spots must be avoided in the contactor.
The conversion of hot metal into steel produces CO-laden gases of high caloric value. The recovery of these gases means to save a considerable amount of energy. The LT-Steel Gas Process has established worldwide.