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Proposal for Ethylene Glycol Distillation Tower Presenters: Demetrius Henry Tyler Ware Craig Staton
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Outline Background Process Flow Design Details Material and Energy Balances Equipment Sizes and Design Capital and Operating Costs Overall Process Economics
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Background Reclaimed Ethylene Glycol from auto repair shops 25 mole% of Ethylene Glycol and Water Provide a free service to get raw material Use the r.m. to distill out nearly pure Ethylene Glycol to sell back
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Process Flow
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Design Details Column height/diameter Number of Plates Plate height Size of the re-boiler Size of Condenser Batch or Continuous Piping
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Material/Energy Balance (Condenser)
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Material/Energy Balance (Reboiler)
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Equipment Sizes and Design Plates Column Pumps Pipe Condenser Re-boiler
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Plates 3 Sieve Trays Size: 12 inches Cost: $1,607.39/tray
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Column Height: 7 ft., including boiler and condenser height Width: 4 ft. Price: $125,018.92
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Pumps Product Storage Pump: Sized for 60 g/hr Cost: $3,071.89 Feed Pump: Sized for 110 g/hr Cost: $3,071.89
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Pipe Total Feet of Pipe: 480 ft. Feed Diameter: 1.5 in. Bottoms Diameter: 1.0 in. Tops Diameter: 0.50 in. Cooling Water Diameter: 2.5 in. Cost: $1,754.37
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Condenser Sized: 700,000 Btu/hr Purchase Cost: $3,571.97
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Re-boiler Sized: 780,000 Btu/hr Purchase Cost: $87,513.25 Installation Cost: $55,365.52
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Capital and Operating Costs Total Capital (including installation, etc.) $301,442.59 Total Operating Cost (first year) $1,430,798.44 Cost per gallon $2.29 Price per gallon $3.50
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Overall Economics
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Overall Economics, cont. Payback is in less than 1 year Assumes no change in selling price
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Conclusions Lucrative new process for MOC
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