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Abstract
This paper will focus on the material issues of the gasifier following a brief description of the current status of the 335 MWe gross (ISO conditions) Integrated Gasification Combined Cycle (IGCC) plant being constructed in Puertollano, Spain. The project is supported by the European Commission through the THERMIE programme. A phased construction was adopted for the project with the combined cycle island operating on natural gas being connected to the Spanish grid in the Autumn of 1996. The combined cycle island is based on a Siemens V94.3 gas turbine. The gasification island and the air separation unit will be commissioned in 1997 and it is envisaged to connect the IGCC plant, operating on a mixture of coal and petroleum coke, to the Spanish grid in the Autumn of 1997. The gasification is based on the PRENFLO entrained-flow process with dry fuel dust feeding and is supplied by Krupp Koppers of Germany. The description will be followed by a general discussion of the material issues considered to be important within the design of the gasifier island and the proposed programme that will be implemented to follow the performance of the materials. The materials programme will take place over a period of up to five years providing long term ‘real-plant’ data that can be used in the evaluation of the technology and in the evaluation of the short-term results originating from laboratory trials and pilot plant studies.
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