An impression of the
Pechiney aluminium
smelter project at
Coega, RSA.

BATEMAN JV awarded Coega aluminium-smelter project

BATEMAN, in 50/50 Joint Venture with Technip-Coflexip of France, has been appointed by Pechiney of France as the general-construction manager for the construction of their new PAS 2005 aluminium smelter to be built at Coega, an industrial zone and harbour being developed 20 km north east of Port Elizabeth in the Eastern Cape Province of South Africa.

The contract is worth US$600M and the new smelter will use Pechiney’s new AP50 technology, permitting lower capital expenditure, lower operating cost and lower emissions per unit of production than the previous generation of plants. The total cost of the investment for the project is estimated at US$1,6bn, excluding the working capital and some of the owner’s costs.

The smelter will produce 460 000 t/yr of primary aluminium and will be one of the anchor projects for the Coega Industrial Zone, contributing immensely to the economic advancement of the local communities in the province. About 800 jobs will be created in the smelter, with between 4 500 and 6 000 people being employed during construction.

Within the framework of this major project, BATEMAN and Technip-Coflexip will be in charge of the detailed engineering, supply of equipment and materials and construction, including the erection of Pechiney-supplied specialised equipment and systems, all on an engineering, procurement and construction (EPC) basis.

Pechiney is currently seeking equity partners for the project with the final decision to implement being made once the financing arrangements have been completed. This will be a fast track project in which construction is planned for the first half of 2004 with the first metal being produced in 2006.

A macro-economic study has revealed that the new smelter will have a strong impact on the economy of the country and specifically on the Eastern Cape. It is estimated that it will contribute around R1,4bn annually to the fiscal income and boost South Africa’s gross domestic product (GDP) by around 0,7 %, while creating up to 25 000 indirect and induced jobs. The aggregate annual household income in the Eastern Cape should increase by around R3,2bn, of which some 23 % should go to the low-income group.

BATEMAN’s Boksburg campus will carry out the project in partnership with Technip-Coflexip in Paris.

The smelter will occupy about 100 hectares in the Coega IDZ and principally consist of a molten electrolysis circuit, an anode manufacturing plant and a cast house. Pechiney will be introducing its new AP50 processing technology, enabling it to reduce the investment cost by almost 15 % compared with its earlier AP30 technology. In addition, emissions of carbon dioxide will be lowered by 20 % compared with previous Pechiney technologies, in which emissions were already 50 % less than the international average for this type of process.

AP50 uses an average potline amperage of 500 kA. The electrolytically-produced molten aluminium will be transported to the cast house in the pots and cast into ingots. The smelter’s installed power will be 850 MW and the process will work continuously 24 h/day and 365 days/yr.

The raw alumina (Al203), sourced from international markets, together with coke, will be conveyed to the site by conveyors while liquid pitch and chemicals will be trucked in. The port facilities will permit the loading of the finished aluminium.

The Coega site was not originally on Pechiney’s shortlist for this new smelter. Several factors, however, contributed to propelling Coega to the favoured position. First, the Coega IDZ provided the required infrastructure for the smelter. Secondly, the proximity of a deep water port to handle imports of raw materials and exports was vital. Finally, the low cost of South African power will help make this electricity intensive process competitive on world markets.

More information may be obtained from: base@batemanengineering.com

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