Abstract
CE is participating in a coal gasification combined cycle repowering project that will provide a nominal 65 MW of electricity to City, Water, Light and Power (CWL and P) in Springfield, Illinois. The IGCC system will consist of CE`s air-blown pressurized entrained flow two-stage gasifier; an advanced hot gas cleanup system; a combustion turbine adapted to use low-btu gas; and all necessary coal handling equipment. The coal feed system will utilize a unique high pressure lockhopper system to allow dry delivery of pulverized coal to the gasifier. A similar high pressure, high temperature lockhopper system will also be used to recycle char from the product gas stream back to the gasifier to maximize carbon utilization. This Topical Report describes the current state of design for the bins and lockhoppers to be used for the coal and char feed system. The project is currently in the second budget period of five. The major activities during this budget period are: establishment of approved for design (AFD) engineering package; development of a detailed cost estimate; resolution of project business issues; CWL and P renewal and replacement activities; and application for environmental air permits.
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