12 June 2007 - Alstom has received a €330m turnkey contract from Brazilian steel producer ThyssenKrupp CSA Companhia Siderúrgica to build a 490 MW combined-cycle power plant.
The power plant, to be located in Sepetiba, Rio de Janeiro State, Brazil, will be fuelled by blast furnace waste gas from a new steel mill, which will be built in parallel by the customer, with excess energy exported to the national grid.
The project will be carried out in two phases, with the plant operating in simple cycle first, allowing power to be produced early on in the project. In the second phase, further equipment will be added to give full combined-cycle operation.
Alstom will provide all EPC services to deliver a fully integrated blast furnace gas fired combined-cycle plant including balance of plant, civil works and erection. The power plant will integrate in-house core plant components consisting of two GT11N2 gas turbines, heat recovery steam generators, one steam turbine and three turbo generators.
The GT11N2 gas turbines have the capability of burning waste gases with low calorific value, such as those that will be produced at the Sepetiba steel plant. The turbines are said to produce, when integrated in an Alstom combined-cycle, 10 per cent more power compared with the more conventional steam plant for blast furnace gas applications.