Carnac identified a high-value Greenhouse Gas (GHG) reduction opportunity for an alumina refinery. Carnac were subsequently engaged to complete a Pre-Concept Study for technical validation of the opportunity.
Carnac were engaged to assess the operating limits of an alumina refinery in relation to its environmental licence restrictions.
Carnac’s assessment was successful in providing the client with a go-forward strategy to improve the operation’s return on investment whilst ensuring environmental limits are adhered to.
Carnac identified several cost reduction opportunities for an alumina refinery via the completion of a Maximum Technical Capability Assessment (debottlenecking study). Carnac further developed the opportunities at a concept level and selected which opportunity to take forward for a prefeasibility study.
Carnac was engaged to investigate events associated with the bursting of heat exchanger tubes and identified root-cause of failures.
Carnac were engaged to assess the operating limits of an alumina refinery in relation to its environmental licence restrictions.
Carnac’s assessment was successful in providing the client with a go-forward strategy to improve the operation’s return on investment whilst ensuring environmental limits are adhered to.
The Alumina Refinery was set to decommission their Cogeneration facility, which would reduce the supply capacity for low pressure and medium pressure steam for use in various facilities across the refinery. Carnac developed a hydraulic model for each of the low pressure and medium pressure steam systems using Piping Systems Fluid Flow and the hydraulic review of the system identified which nodes did not meet the required supply criteria.
The client reported that the flash vessels in the digestion facility were receiving significant internal erosion around the flash vessel inlet nozzle, the inlet riser, witches hat and cone shell. With past investigations and mitigations to minimise wear in mind, Carnac reviewed and provided recommendations on how these nozzles may be modified to potentially reduce internal vessel wear and optimise flows.
