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Research update flexibility analysis

Research update flexibility analysis. FEHE. i C 5. Time. Purge. Fig1-new. Recycle. ko, l. Furnace. Product. Flooded Condenser. Reactor. Input Feed. n C 3 , i C 4 , n C 4 , i C 5. DIB Column. Purge Column. P. q 2. (l). q 1. (k 0 ). Uncertain kinetics parameter

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Research update flexibility analysis

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  1. Research updateflexibility analysis

  2. FEHE iC5 Time Purge Fig1-new Recycle ko,l Furnace Product Flooded Condenser Reactor Input Feed nC3,iC4,nC4,iC5 DIB Column Purge Column

  3. P q2 (l) q1 (k0) • Uncertain kinetics parameter • preexponental factor, ko : (s-1) • heat of reaction , l (J/kmol) critical point! l (k0)

  4. Process / manipulated variables • Process variables (x) • manipulated variable u • 3 by 4 MIMO system

  5. Process / manipulated variables • If we increase u4 (input temp. of reactor)

  6. Steady state feasibility test u’ maximum value (temperature) in simulation u’<u4<umax u’ l (k0)

  7. Sampling (10 uncertain parameter sets) :10+critical point Optimal design(1) D1:156ft3 D2:59 D3:32 D4:1,034 ft2 Optimal design(2) D1:432ft3 D2:52 D3:33 D4:1,011 ft2 Feasible? Feasible? x(d)<0? No Yes END Critical point at (ko= 2.66e7, l=-3,900) D1 :reactor volume(ft3), D2: DIB total trays , D3: Purge column total trays D4: FEHE Area (ft2) Fig 10 x(d)=489 x(d)=-271

  8. Dynamic flexibility test

  9. Dynamic flexibility test PFR= series of CSTRs i=0~3) C,T C,T C,T C,T k=2 k=3 k=0 k=1

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