Maleic Anhydride Production Dave Arnold Luke Kline Daniel Sweeney Craig Rogers

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%

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

Reactor Scheme Butane + 3.5O 2 yields C 4 H 2 O 3 + 4H 2 O Butane + 6.5O 2 yields 4CO 2 + 5H 2 O C 4 H 2 O 3 + 3O 2 yields 4CO 2 + H 2 O Assuming Complete Combustion to Carbon Dioxide

Optimization of Butane flow rate

Optimization of Oxygen flow rate

Optimization of Reactor Average Temperature

Temperature optimization

Catalyst Geometry

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