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Maleic Anhydride Production

Maleic Anhydride Production

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Maleic Anhydride Production

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  1. Maleic Anhydride Production Dave Arnold Luke Kline Daniel Sweeney Craig Rogers

  2. Overall Reactor Parameters • Volume = 100 meters cubed • Catalyst Amount = 130,000 kg • Fbo = 0.4 kmol/s • Foo = 0.2 kmol/s • T = 595 K • UA = 1 kW/(kg-cat*K) • Delta P < 10%

  3. Overall Reactor Parameters • 22,000 tubes at 1 in diameter • Reactor length -- 9 m • Total cross-sectional area -- 11.15 m^2 • Heat exchanger surface area -- 15,800 m^2

  4. Reactor Scheme • Butane + 3.5O2 yields C4H2O3 + 4H2O • Butane + 6.5O2 yields 4CO2 + 5H2O • C4H2O3 + 3O2 yields 4CO2 + H2O • Assuming Complete Combustion to Carbon Dioxide

  5. Optimization of Butane flow rate

  6. Optimization of Oxygen flow rate

  7. Optimization of Reactor Average Temperature

  8. Temperature optimization

  9. Catalyst Geometry

  10. Profit and Expenses • Maleic Anhydride -- $0.82 per lb • Vanadium pentoxide -- $4.08 per lb • Revenue -- $77.57 million • Expenses • Catalyst -- $1.17 million per charge • Air cooled heat exchanger -- $200,000