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Title: Tampa Electric Company Integrated Gasification Combined Cycle Project

The proposed project will utilize commercially available gasification technology as provided by Texaco in their licensed oxygen-blown entrained-flow gasifier. In this arrangement, coal is ground to specification and slurried in water to the desired concentration (60--70% solids) in rod mills. This coal slurry and an oxidant (95 % pure oxygen) are then mixed in the gasifier burner where the coal partially combusts, in an oxygen deficient environment, to produce syngas with a heat content of about 250 BTU/SCF (LHV) at a temperature in excess of 2500[degrees]F. The oxygen will be produced from an Air Separation Unit (ASU). The gasifier is expected to achieve greater than 95% carbon conversion in a single pass. It is currently planned for the gasifier to be a single vessel feeding into one radiant syngas cooler where the temperature will be reduced from about 2500[degrees]F to about 1300[degrees]F. After the radiant cooler, the gas will then be split into two (2) parallel convective coolers, where the temperature will be cooled further to about 900[degrees]F. One stream will go to the 50% HGCU system and the other stream to the traditional CGCU system with 100% capacity. This flow arrangement was selected to provide assurance to Tampa Electricmore » that the IGCC capability would not be restricted due to the demonstration of the HGCU system. A traditional amine scrubber type system with conventional sulfur recovery will be used. Sulfur from the HGCU and CGCU systems will be recovered in the form of H[sub 2]SO[sub 4] and elemental sulfur respectively.The key components of the combined cycle are the advanced combustion.turbine (CT), heat recovery steam generator (HRSG), and steam turbine (ST), and generators. The advanced CT will be a GE 7F operating with a firing temperature of about 2300[degrees]F.« less
Authors:
;
Publication Date:
OSTI Identifier:
7152305
Report Number(s):
DOE/MC/27363-93/C0082; CONF-920951--23
ON: DE93002619
DOE Contract Number:
FC21-91MC27363
Resource Type:
Conference
Resource Relation:
Conference: US Department of Energy contractors review meeting on gasification and gas stream cleanup systems, Morgantown, WV (United States), 15-17 Sep 1992
Research Org:
Tampa Electric Co., FL (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; COMBINED-CYCLE POWER PLANTS; TEXACO GASIFICATION PROCESS; COAL GASIFICATION; GAS TURBINES; MATERIALS RECOVERY; OXYGEN; OXYGEN PLANTS; STEAM TURBINES; SULFUR; SULFURIC ACID; WASTE HEAT BOILERS; BOILERS; ELEMENTS; EQUIPMENT; GASIFICATION; HYDROGEN COMPOUNDS; INDUSTRIAL PLANTS; INORGANIC ACIDS; MACHINERY; MANAGEMENT; NONMETALS; POWER PLANTS; PROCESSING; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; TURBINES; TURBOMACHINERY; WASTE MANAGEMENT; WASTE PROCESSING 010404* -- Coal, Lignite, & Peat-- Gasification; 200102 -- Fossil-Fueled Power Plants-- Power Cycles