Hot tail gas fumes (200 deg C) generated from the Regenerative Thermal Oxidizer (RTO) on the caustic soda Liquor Burner of this alumina plant contain a cocktail of compounds that are harmful to the environment and must be removed prior to release of the tail gas into the atmosphere.  Some are relatively easy to remove, such as hydrogen chloride (HCl), hydrogen fluoride (HF) and chlorine (Cl2).  Others such as hydrogen iodide (HI) and iodine (I2) are in a league of their own.

Jord’s quench and packed towers scrubber designs required multiple reagents to deal with these compounds.  Strict process guarantees required to meet tight environmental emission limits had to be met.  But Jord likes a challenge.  Working collaboratively with our customer, no stone was left unturned to ensure these process guarantees would be met.

Jord’s responsibility extended to design and supply of the complete system, including all vessels, structures, pumps, piping, valves and control systems.  Materials of construction were tailored to the application and included exotic metals such as Alloy C276 and FRP.