Glass

HF and SO2 removal in glassworks

How to comply to stricter emission limits

In order to conform to new acid gas emissions regulations for HF and SO2, an English flat glass factory was looking for a more effective reagent than the sodium-based product it was originally using, particularly for the removal of HF.

It was looking for a complete solution:

  • to define a process compatible with the characteristics of the gas to be treated and with its existing installations
  • to organise a referencing test combining Lhoist technology and the recommended reagent
  • to carry out tests to prove that the removal levels of HF and SO2 have been achieved
  • to evaluate future operating costs

 


Your activity - HF and SO2 removal in a glassworks     Download full Case Study (PDF - 292 Ko)      

Removal of Acid Gas and Selenium
Use of a Calcium-based sorbent: Sorbacal® SPS

Context

The unit is a flat glas production plant equipped with an FGT unit composed of a furnace followed by an Electro Static Precipitator (ESP). The plant used to clean the flue gases by injecting Sodium Bicarbonate alone or in combination with Sorbacal® SP. Sorbacal® SP is a hydrated lime with high specific surface area and porous volume dedicated to acid gas removal. However, dealing with two different sorbents imposes a tedious supply management as well as a special care of residues storage and recycling.

 

Your activity - Removal of Acid Gas and Selenium -Use of a Calcium-based sorbent: Sorbacal® SPS     Download full Case Study (PDF - 62 Ko)