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Reactors in series and in parallel. Lec 6 week 7. CSTR in series. A first-order reaction with no change in the volumetric flow rate (v = v0) is to be carried out in two CSTRs placed in series. For the 1 st reactor: Mole balance :.

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## Reactors in series and in parallel

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**Reactors in series and in parallel**Lec6 week 7**CSTR in series**• A first-order reaction with no change in the volumetric flow rate (v = v0) is to be carried out in two CSTRs placed in series. • For the 1st reactor: • Mole balance :**Rate law Let's consider a first-order irreversible reaction**for which the rate law is • Stoichiometry: • (1) • Combine: • (2) From (1) and (2)**The effluent concentration of reactant A from the first CSTR**can be found from the following concentration:**Substituting for Cn in terms of conversion and Since the**reactors are of equal size, operate at the same temperature, and have identical feed rates. the conversion wilI be the same for each reactor: x1 = X2 = ... = Xn = X**CSTR in Parallel**• The individual reactor volume • Since the reactors are of equal size, operate at the same temperature, and have identical feed rates. the conversion wilI be the same for each reactor: • X1 = X2 = ... = Xn = X**Example**• The adiabatic exothermic irreversible gas phase reaction is to be carried out in a flow reactor for a stoichiometric feed of A and B. • Additional Information

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