What is a combined process?

A combined process can also be used to optimize sorbent cost throughout the entire process. A cheap sorbent takes care of most of the abatement, while a highly-efficient sorbent captures the last traces of pollutant later in the process. 

In principle, DSI can be used in combination with all existing FGT processes, including wet or all dry processes. Such combined processes usually have two main purposes: 

  • removing a “new” pollutant that cannot be handled by an existing FGT process 
  • increasing the removal performance of an existing FGT process 

Lhoist product range dedicated to Combined process

Adding a dry sorbent injection (DSI) or a furnace sorbent injection (FSI) to an existing FGT operation helps to increase the scope and efficiency of pollutant capture. This is easier and more economical than other options

  • Sorbacal® SPS
  • Sorbacal® Micro
  • Sorbacal® SP
  • Sorbacal® H
  • Sorbacal® A
  • Sorbacal® CDS
  • Sorbacal® Q
  • Sorbacal® SL
  • Sorbacal® C
  • Sorbacal® G

Each combined process is a unique tailor-made solution for the specific needs of the individual customer. Our experts can assist you in selecting the right type of process and sorbent to optimize and upgrade your existing FGT process. 

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Combined process: FSI + DSI

Combined process: SDA + DSI