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LPPD, Seon Kim 2009. 9. 30

1. FOCAPD PAPER and CASE STUDY 2. Effect of Product Purity to Column Network 3. Geometric Initialization of the Composition Profile. LPPD, Seon Kim 2009. 9. 30. Research Update. FOCAPD paper. Research Update. Global search for xb3. ⅹ 10 -3. Research Update. Research Update.

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LPPD, Seon Kim 2009. 9. 30

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  1. 1. FOCAPD PAPER and CASE STUDY2. Effect of Product Purity to Column Network3. Geometric Initialization of the Composition Profile LPPD, Seon Kim 2009. 9. 30

  2. Research Update FOCAPD paper

  3. Research Update • Global search for xb3 ⅹ10-3

  4. Research Update

  5. Research Update • Computation from our model • Aspen Result

  6. Research Update Effect of Product Purity to Column Network • Product Purity Criterion • Key component mole fraction : 0.99 • Summation of Non-key component mole fraction : 0.01 • Elimination of component Purity Criterion • Component mole fraction : 10-5 • Key component mole fraction < 0.99 • Infinite possible combinations of the product purity C1 0.99 0.99 0.99 C2 C3 0.99 0.99 • Fixed reflux and Distillate flow rate • Distillate Product A in C1 • Purity of composition B ↑ - Need more trays in rectifying section • Different operating condition and cost • Different capital cost • To get a Fixed Distillate Composition in C2 0.99 0.99

  7. Research Update CASE1 A: 0.99 B: 0.009557972797936 C: 0.000408708568742 CASE 2 A: 0.99 B: 0.009917119818363 C: 0.000080173040026 0.99 0.99 0.99 0.99 0.99 Constant reflux Different combination of xd2, xd3, and xd4 CASE 2 BPD = 6.6988e-05 0.99 0.99 CASE 1 BPD = 1.5697e-04

  8. Research Update • ----------------- Design Description ------------------ • Column Number - 1 • CASE 1 • Component : Pentane/Hexane/Heptane/Octane • Feed Composition : 0.25 0.25 0.25 0.25 • Constant alpha : 13.99 5.4 2.17 1 • Distillate Purity : 0.99 0.009558 0.00040871 3.3319e-005 • Bottom Purity : 1e-005 0.33123 0.33432 0.33444 • Feed Flow Rate : 100 • ----------------------- RESULT ------------------------ • minimum BPD : 1.5697e-004 • BPET of Intersect : 10.9955 • Reflux Ratio : 10 • Reboil Ratio : 3.7161 • Distillate Flow : 25.2518 • Bottom Flow : 74.7482 • Vapor Flowrate : 277.7695 • Rectifying Tray # : 3.1306 • Stripping Tray # : 18.2554 • Total Tray # : 21.3861 • ----------------- Design Description ------------------ • Column Number - 2 • CASE - 2 • Component : Pentane/Hexane/Heptane/Octane • Feed Composition : 0.25 0.25 0.25 0.25 • Constant alpha : 13.99 5.4 2.17 1 • Distillate Purity : 0.99 0.0099171 8.0173e-005 2.7071e-006 • Bottom Purity : 1e-005 0.33111 0.33443 0.33446 • Feed Flow Rate : 100 • ----------------------- RESULT ------------------------ • minimum BPD : 6.6988e-005 • BPET of Intersect : 9.7932 • Reflux Ratio : 10 • Reboil Ratio : 3.7161 • Distillate Flow : 25.2518 • Bottom Flow : 74.7482 • Vapor Flowrate : 277.7695 • Rectifying Tray # : 4.2157 • Stripping Tray # : 13.615 • Total Tray # : 17.8307

  9. Research Update • ----------------- Design Description ------------------ • Column Number - 2 • CASE 1 • Component : Hexane/Heptane/Octane • Feed Composition : 0.33123 0.33432 0.33445 • Constant alpha : 5.4 2.17 1 • Distillate Purity : 0.7 0.299 0.001 • Bottom Purity : 1e-005 0.36605 0.63394 • Feed Flow Rate : 74.7482 • ----------------------- RESULT ------------------------ • minimum BPD : 4.5862e-008 • BPET of Intersect : 2.5018 • Reflux Ratio : 0.88384 • Reboil Ratio : 1.692 • Distillate Flow : 35.3693 • Bottom Flow : 39.3789 • Vapor Flowrate : 66.63 • Rectifying Tray # : 13.1748 • Stripping Tray # : 14.9094 • Total Tray # : 28.0841 1 • ----------------- Design Description ------------------ • Column Number - 2 • CASE 2 • Component : Hexane/Heptane/Octane • Feed Composition : 0.33111 0.33443 0.33446 • Constant alpha : 5.4 2.17 1 • Distillate Purity : 0.7 0.299 0.001 • Bottom Purity : 1e-005 0.36623 0.63376 • Feed Flow Rate : 74.7482 • ----------------------- RESULT ------------------------ • minimum BPD : 2.9802e-008 • BPET of Intersect : 2.5663 • Reflux Ratio : 0.644 • Reboil Ratio : 1.4756 • Distillate Flow : 35.3563 • Bottom Flow : 39.3919 • Vapor Flowrate : 58.1258 • Rectifying Tray # : 28.0324 • Stripping Tray # : 16.2929 • Total Tray # : 44.3254

  10. Research Update • Bezier and Cubic spline curve Composition Profile (ODE) Bezier Curve Cubic Spline Curve Tangent Vector Magnitude change

  11. Research Update • B-spline curve

  12. Research Update Initialization of Orthogonal Collocation (in progress)

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