Maximizing creeping value through rigorous methodology

Abstract

Creeping of an existing smelter is often considered cost-effective compared to the development of a greenfield smelter. It indeed permits an increase in metal production and/or a reduction in operating costs with lower investment compared to a greenfield case. In order to minimize issues during the execution phase, a rigorous and thorough preparation is required, including the identification of the creeping impacts on all smelter units, and the proposal of possible solutions to mitigate them. Rio Tinto Alcan Technology group has developed an integrated approach to identify the impacts of creeping, starting at the smelter level and then extending to the different units. Such a method is now available as an AP Technology™ solution. This paper describes the general approach used, and the main tools developed with this aim.