Alfa Laval Compabloc condenser solved fouling problem

Queensland Alumina replaced a shell-and-tube unit with a fullywelded Alfa Laval Compabloc condenser unit in order to decreasemaintenance costs. Utilising only a quarter of the space of the oldshell-and-tube installation, the Compabloc solved severe corrosionand fouling problems resulting in a significant service cost reduction.

DATE 2023-11-28

Process Plant

The Queensland Alumina plant at Gladstone produces 3.7 million tonnes of alumina annually using the Bayer process, the thermal process based on the solubility of alumina in caustic liquor.

Heat exchangers are required for a broad spectrum of duties in the process of heating and cooling the circulating liquor stream. The Compabloc replaced the original carbon steel shell-and-tube heat exchanger in the precipitation area, where it is heating incoming process water with final flash vapour at 29 kPa abs.



Alfa Laval Compabloc heat exchangerL'échangeur thermique Compabloc est à la fois compact et entièrement soudé. Sa conception permet une utilisation avec une large gamme de fluides agressifs, ainsi qu'à des températures et des pressions élevées. 

En savoir plus sur Compabloc 

Looking for a new solution

As for many process industries using heat exchangers, the most important requirements for Queensland Alumina are:

  • High thermal efficiency
  • Low fouling and scaling
  • Minimal space requirements
  • Design flexibility
  • Ease of installation
  • Minimal maintenance