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Definition
| A plug flow reactor is a continuous reactor in which a 'plug' of fluid moves along a pipe with no axial mixing and perfect radial mixing |
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| Define: Continuously Stirred Tank Reactor |
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Definition
| A CSTR is a batch type reactor in which all contents of the reactor are assumed to be evenly mixed |
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Definition
| An equation or set of equations used to describe the rate at which a reaction occurs |
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Definition
| an equation or set of equations used to describe the ideal reaction conditions including space time, volume, flow rate, conversion, etc. |
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Definition
| The amount of nrg, in the form of heat, that must be added or removed during a chemical reaction to all the reactions to proceed |
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| Overall heat transfer co-efficent, U |
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Definition
| Ratio of the flux of heat transfer to the driving force behind the transfer (ie the temp difference) |
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Definition
| the max temp acheivable in an adiabatic system |
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Definition
| Fractional volume change- δA=(VXA=1-VXA=0)/VXA=0 |
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Definition
| reactor that recycles a protion of the effluent obtained at the outlet of the reactor back to the inlet |
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Term
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Definition
Amount of product obtained relatice to the initial amount of reactant
Yield=((1/VP)Npf)/((1/Vr)Nri
Where Npf is the final moles of product and Nri is the initial moles of reactant and Vp and Vr are the stoichiometric coefficients |
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Definition
Amount of product obtained relative to how much was reacted
((1/VP)Npf))/((1/Vr)(Nri-Nrf)) |
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Definition
The proportion of material that that react
XA = 1-CA/CAO
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Term
| What assumptions can you make about a CSTR reactor model? |
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Definition
You can assume that a CSTR is
run at steady state with continuous flow of reactants and products; the feed assumes a uniform
composition throughout the reactor, exit stream has the same composition as in the tank |
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| What assumptions can you make about a PFR reactor model? |
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Definition
? You can assume steady state,
constant density, constant tube diameter, a single reaction is occurring.
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