Coal gasification for the coproduction of electricity and fertilizer

• Main Authors: Kelly, D. A., Nichols, D. E., Faucett, H. L.
• Other Authors: Tennessee Valley Authority, Knoxville, TN (United States)
• Format: Article in Journal/Newspaper
• Language: English
• Published: Tennessee Valley Authority, Muscle Shoals, AL (United States) 1992
• Subjects: Coal Gasification; Fuels; Urea; Chemical Reactions; Power; Oxygen Plants; 01 Coal; Lignite; And Peat; Desulfurization; Organic Compounds; Elements; Amides; Economic Analysis; Demand; Synthesis Gas; Electric Power; Power Plants; Slags; Nitrogen Compounds; Materials Recovery; Gasification; Economics; Turbines; Gas Fuels; Waste Processing 010404* > Coal; & Peat > Gasification; Machinery; Us Organizations; Industrial Plants; Processing; Combined-Cycle Power Plants; 200102 > Fossil-Fueled Power Plants > Power Cycles; Hydrides; Fertilizers; Fuel Gas; Waste Management; Ammonia; 20 Fossil-Fueled Power Plants; Thermochemical Processes; Organic Nitrogen Compounds; Tennessee Valley Authority; National Organizations; Management; Power Demand; Carbonic Acid Derivatives; Nitrogen Hydrides; Turbomachinery; Fluids; Gases; Intermediate Btu Gas; Nonmetals; Gas Turbines; Hydrogen Compounds; Equipment; Sulfur; Thermal Power Plants; Texaco Gasification Process; Carbonic acid
• Online Access: https://digital.library.unt.edu/ark:/67531/metadc1187665/

TVA is proposing to develop and commercially demonstrate the coproduction of electricity and fertilizer (urea) using integrated gasification/combined cycle (IGCC) technology. The coal-based coproduction demonstration project will show that the coproduction process can economically and environmentally enhance the production of both electric power and urea. As conceptualized, the proposed coproduction demonstration project facility would be designed for a nominal electrical capacity of about 250 megawatts (MW), Table I. During normal operation, the facility would produce about 150 MW of base-load electrical power and 1,000 tons per day of urea. Sulfur from the coal would be recovered as elemental sulfur. During peak power demand, the fertilizer capacity could be reduced or bypassed and the full 250 MW could be made available. This scheme would allow continuous operation of the gasifier at 100% of its rated capacity which would reduce the annual revenue requirements for power generation by permitting the production of fertilizer. As TVA's vision of this proposal matures (i.e., as consideration is given to alternative schemes, as TVA reviews its power demands, and as more detailed engineering estimates are developed), the nature and scope of cyclic-operation may be altered.