Dry scrubbers
ASPA Engineeringcan offer a turnkey package for the removal of acidic and toxicpollutants from flue gases using dry chemical absorption. An integralreactor provides optimum mass transfer between the raw gas andabsorbent. The spent absorbent is collected dry in our dustcollector.
Advantages
- Greater than 90% removal in thecase of HCl and HF
- Fabric filter assures greater than99% efficient particulate removal
- Reheating of stack gases isunnecessary-the system operates above the flue gas saturationtemperature
- Low waste disposal cost; nowastewater treatment system required
- Dry, environmentally safe product
- Low water consumption
- Low pressure drop
- Minimal maintenance
|
Typical Applications |
Typical Contaminants |
Absorbant |
|
Aluminum anode forming |
BTX, PAH |
Petroleum coke |
|
Aluminum anode baking |
Fluorides, SO2, VOCs |
Petroleum coke, Alumina |
|
Aluminum pot lines |
Benzo(e) pyrene, Fluorides, SO2 |
Petroleum coke, Alumina |
|
Municipal waste incineration |
HF, PCDD/F, heavy metals |
Ca(OH)2 or NaHCO2 + activated carbon |
|
Clinical waste incineration |
HCl, SO2, PCDD/F |
NaCHO2 + activated carbon |
|
Steel production |
SO2 |
Ca(OH)2 |
|
Cerium production |
HCl, HF |
Ca(OH)2 |
|
Molybdenum alloy production |
HCl, HF |
Ca(OH)2
|
