Tampa Electric Integrated Gasification Combined - Cycle Project

Executive Summary The Clean Coal Technology (CCT) Demonstration Program is a government and industry co-funded effort to demonstrate a new generation of innovative coal utilization processes in a series of " show-case " facilities built across the country. These projects are carried out on a sufficiently large scale to prove technical feasibility and provide the information required for additional commercial applications. The goal of the CCT Program is to furnish the marketplace with a number of advanced, more efficient coal-based technologies that meet strict environmental standards. These technologies will mitigate the economic and environmental barriers that limit the use of coal. To achieve this goal, beginning in 1985, a multi-phased effort consisting of five separate solicitations has been administered by the U.S. Department of Energy's (DOE) National Energy Technology Laboratory (NETL), formerly the Federal Energy Technology Center. Projects selected through these solicitations have demonstrated technology options with the potential to meet the needs of energy markets while satisfying relevant environmental requirements. This report discusses the Tampa Electric Integrated Gasification Combined-Cycle Project. In this project, the Texaco coal gasification process is used to fuel a gas combustion turbine generator, whose exhaust is integrated with a heat recovery steam generator and a steam turbine generator. Over 98% of sulfur contaminants are removed. Sulfur is recovered as sul-furic acid which is sold, as is the slag byproduct of gasification. The project was conducted at Polk Power Station, a greenfield site located near Mulberry, Polk County, Florida. The Tampa Electric CCT project has successfully demonstrated the commercial application of Texaco coal gasification in conjunction with electric power generation. Over 18,000 hours of operation have been accumulated. Net power production meets the target goal of 250 MWe at a high stream factor and plant availability. Carbon burnout exceeds 95%, and emissions of SO 2 , NOx and particulates are well below the regulatory limits set for the Polk plant site. The Polk facility is one of the cleanest coal-based power plants in the world. 2 Background