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CENG 102 Chemical Process Project Description Plant for Production of Ammonia: Haber-Bosch Process Introduction and History: One of the most critical...

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Just organized equations need and reactions 

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Calculating residuals for gas mixtures:Create averaged parameters for the entire flow instead of calculating residuals for individualcomponents. Note: “pc” means pseudocritical. “pr” means pseudoreduced. Also, when inmixtures, ω for H2 should always be taken as 0. ω mix ≡ ∑ y iω i Tpc ≡ ∑ y i Tci Ppc ≡ ∑ y i Pci i i i Tpr ≡ TTpc Ppr ≡ PPpc Henry’s Law Dependence on Temperature: ! H $ −E ! 1 1 $ln # 2 & = a # − &" H1 % R " T2 T1 %Primary Reformer & Shift Reactor Equilibrium Equations: pCO pH3 2" K R1,CH 4 =pCH 4 pH 2O" KWGS = pCO2 pH 2pCO pH 2O " log ( K R1,CH 4 ) =" log ( KWGS ) = −11769+13.1927T (K ) 1197.8−1.6485T (K ) NH3 Synthesis Reactor Species Balances:" RF = 100B − 396ξ"y ECH 4 B100yCH4B=E "y EH2 100yHB 2 B − 300ξ=E " log ( K NH 3 ) = 3629.3− 8.9596T (K ) %Error and %Change:estimate − actual" %Error = 100%actual " E = RF − 2ξ = 100B − 398ξ"y EN2 100yNB 2 B −100ξ=E " K NH 3 = ( fˆ o/ f NH3 NH 3 ( fˆN 2 / f No2 " %Change = 100% )( E" yNH3 = ) 2 fˆH 2 / fHo 2 new − oldold ) 3 2ξE
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