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• W636637918 abstract "More than 90 percent of Indiana’s electricity comes from coal. The majority of the coal mined in Indiana (56 percent) is used for generating electricity. Indiana uses almost twice as much coal annually as it produces - more than 60 million short tons used versus 35 million short tons [31.8 tons] mined. Indiana has significant coal reserves (approximately 59 billion short tons [53.5 billion tons]); approximately 17.5 billion short tons [15.9 billion tons] are available from either surface or underground mining which, at the current level of production, can suffice for hundreds of years. However, most Indiana coals are high in sulfur (average sulfur content for all coal beds is 3.4 percent) which causes significant emissions of sulfur dioxide (SO2) when utilized in conventional power plants. . IGCC technology is becoming increasingly more competitive and may be a technology of choice in the future of electricity generation. In the IGCC process, plants turn coal to gas, removing most of the sulfur dioxide, mercury and carbon dioxide upstream of the combustion process at a lower cost. IGCC systems also use less water than a conventional coal-fired power plant with currently required pollution control equipment. Indiana has an existing IGCC plant (Wabash River Gasification) in operation and has another IGCC plant under consideration. During this study, we have identified coal properties that are of critical importance for IGCC performance and have generated a database that, among other parameters, includes those coal parameters that are of primary importance to IGCC. This database was used for analysis of available data, and the identification of areas with poor data coverage. While many analyses exist for moisture, fixed carbon and volatile matter, no data are available for ash fusion temperature and slag viscosity, parameters very important for IGCC. Coal properties such as moisture, heating value, sulfur, ash yield, volatile matter, and fixed carbon were mapped. These maps, together with maps of fuel ratio (fixed carbon/volatile matter) and O/C ratios were used to provide a preliminary assessment of the applicability of the suitability of Indiana coals for IGCC. This analysis demonstrates that Indiana coals are generally good feedstock for IGCC, although variations in properties exist both between the coal beds and within coal beds; the maps generated can help in identifying the most favorable area s for feedstock source. Data analysis allowed for the identification of three major quality-related barriers to use Indiana coals for IGCC: 1) insufficient data on the properties of mineral matter in coal, 2) insufficient knowledge about slag behavior in a gasifier, and 3) insufficient knowledge of chlorine content distribution in the coal. An ongoing study includes analysis of mineral matter composition and petrography, ash melting characteristics, and chlorine content. These newly acquired data will be integrated into the currently available database for more complete characterization of Indiana coal as feedstock for IGCC." @default.
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• W636637918 date "2006-01-01" @default.
• W636637918 modified "2023-09-24" @default.
• W636637918 title "ABSTRACT: ASSESSMENT OF THE QUALITY AND DISTRIBUTION OF HIGH VOLATILE BITUMINOUS COALS FROM INDIANA FOR USE IN INTEGRATED GASIFICATION COMBINED CYCLE (IGCC) SYSTEMS" @default.
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