Proposal for Ethylene Glycol Distillation Tower Presenters: Demetrius Henry Tyler Ware Craig Staton
Outline Background Process Flow Design Details Material and Energy Balances Equipment Sizes and Design Capital and Operating Costs Overall Process Economics
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
Process Flow
Design Details Column height/diameter Number of Plates Plate height Size of the re-boiler Size of Condenser Batch or Continuous Piping
Material/Energy Balance (Condenser)
Material/Energy Balance (Reboiler)
Equipment Sizes and Design Plates Column Pumps Pipe Condenser Re-boiler
Plates 3 Sieve Trays Size: 12 inches Cost: $1,607.39/tray
Column Height: 7 ft., including boiler and condenser height Width: 4 ft. Price: $125,018.92
Pumps Product Storage Pump: Sized for 60 g/hr Cost: $3, Feed Pump: Sized for 110 g/hr Cost: $3,071.89
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
Condenser Sized: 700,000 Btu/hr Purchase Cost: $3,571.97
Re-boiler Sized: 780,000 Btu/hr Purchase Cost: $87, Installation Cost: $55,365.52
Capital and Operating Costs Total Capital (including installation, etc.) $301, Total Operating Cost (first year) $1,430, Cost per gallon $2.29 Price per gallon $3.50
Overall Economics
Overall Economics, cont. Payback is in less than 1 year Assumes no change in selling price
Conclusions Lucrative new process for MOC