Dry gas absorption system (DSI systems)

Dry absorbent injection systems, also known as Dry Sorbent Injection Systems (DSI systems), are a perfect solution for controlling emissions of polluting gases in industrial processes. These systems stand out for their capacity to Effectively reduce emissions of acid gases (SOx, HCl, HF), heavy metals, dioxins and furans among others.

Essentially, a DSI system works by the absorption method, where dry absorbents are introduced into the flue gases, reacting with the pollutants and neutralizing them before they are released into the atmosphere. This method is widely known for its versatility and effectiveness in reducing harmful emissions.

How does a dry absorbent injection system work and what equipment is included?

As mentioned, the operating principle of DSI systems consists of injecting a dry absorbent appropriate for the contaminants present in the gas stream and which will mix and absorb the contaminants to discharge the clean gases into the atmosphere.

In order to maximize the collection efficiency and thus reduce the operating costs of the system, the installation must be designed and sized correctly. The different processes and equipment that make up a DSI installation are specified below:

• Reagent dosage.
• Reactor.
• Bag filter.
• Control system.