DSI consists of injecting a dry powdered sorbent upstream of a particulate control device such as a bag filter or electrostatic precipitator (ESP). This enables efficient and flexible removal of acid gases (such as SO2,SO3, HCl and HF) and micro‑pollutants. The sorbent reacts with pollutants in the duct and continues reacting within the filter cake. The resulting reaction products and fly ash are subsequently captured by the filtration system.
Key benefits
- Low capital investment
- Easy integration into existing plants
- High removal performance (SO2, SO3, HF, HCl) with Sorbacal® products
- Fully dry process with simplified residue handling
- Low consumption of compressed air, electricity and water
- Flexible operation across temperature and load variations.
Best-fit applications
Well-suited for low‑capacity incinerators and retrofits projects requiring fast implementation, limited space, and operational flexibility.
Our Sorbacal® solutions for DSI
Lhoist’s highly reactive hydrated limes help you minimize sorbent consumption and reduce total residue generation, making DSI a competitive flue gas treatment solution.
