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Propylene Glycol Production Facility

Propylene Glycol Production Facility. INTEGRATED PROCESS DESIGN (44323) Chemical Engineering University of Valladolid Group assignment 2011/12. Upper boundary: S M + S D = 1. S D. Range of available values of S M and S D. S M > 85%. S M + S D > 95%. Reactor performance .

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Propylene Glycol Production Facility

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  1. Propylene Glycol Production Facility INTEGRATED PROCESS DESIGN (44323) Chemical Engineering University of Valladolid Group assignment 2011/12

  2. Upper boundary: SM + SD = 1 SD Range of available values of SM and SD • SM > 85% • SM + SD > 95%

  3. Reactor performance • Maximum Selectivity • Multiple in series reactions: • Flow Pattern • Components analysis: • Concentration • Selectivity: • Inerts: reduce kinetics and do not change selectivity → No • Temperature • Exothermic reactions: Adiabatic or cooled? • Pressure • To maintain liquid state. depending on temperature.

  4. “Simulate reaction kinetics in an isothermal (125ºC) plug flow reactor. at 20 bar constant pressure. with a residence time of 5 seconds. Feed stream 100 kmol/h of PO. and H2O/PO molar ratio = 15.” PhthalicAnhydride_01.apw

  5. Sensitivity analysis: Selectivity versus Residence Time (Length) • Constant production: 120,000 t/y MPG Vary: PO Mole flow • Constant temperature: 125ºC • Constant H2=/PO: 15.0 Vary: H2O Mole flow

  6. Sensitivity analysis: Selectivity versus Temperature • Constant production: 120,000 t/y MPG Vary: PO Mole flow • Constant conversion: 96.7% Vary: Length • Constant H2=/PO: 15.0 Vary: H2O Mole flow

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