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Lecture 8 Tuesday 1/29/08 Block 1: Mole Balances on PFRs and PBRs Must Use the Differential Form Block 2: Rate Laws Block 3: Stoichiometry Pressure Drop:

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Presentation on theme: "Lecture 8 Tuesday 1/29/08 Block 1: Mole Balances on PFRs and PBRs Must Use the Differential Form Block 2: Rate Laws Block 3: Stoichiometry Pressure Drop:"— Presentation transcript:

1 Lecture 8 Tuesday 1/29/08 Block 1: Mole Balances on PFRs and PBRs Must Use the Differential Form Block 2: Rate Laws Block 3: Stoichiometry Pressure Drop: Liquid Phase Reactions. Pressure Drop Does Not Effect the Concentrations in Liquid Phase Rxns Gas Phase Reactions. Epsilon not Equal to Zero d(P)/d(W)=.. Polymath will combine with d(X)/f(W)=..for you Epsilon = 0 and Isothermal P=f(W) Combine then Separate Variables (X,W) and Integrate Gas Phase Reaction. PBR Example 1: Polymath Solution A + 2B  C Gas Phase Reaction. PBR Example 2: Analytical Solution A + B  C + D

2 Mole Balance Rate Laws Stoichiometry Isothermal Design Heat Effects

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4 2. Rate Law: –r A =kC A 2 3: Stoichiometry

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