Reactors
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Title: Reactors
Author: Sean Cabaniss, David Park, Maxim Slivinsky and Julianne Wagoner
Steward: Fengqi You
Date Presented: February 4, 2014 /Date Revised: February 4, 2014
Introduction
Ideal Reactors
Plug Flow Reactor (PFR)
A PFR with tubular geometry has perfect radial mixing but no axial mixing. All materials hav the same residence time, τ, and experience the same temperature and concentration profiles along the reactor. Equation for PFR is given by:
where M = molar flow rate, dV is the incremental volume, and R is the rate of reaction per unit volume.
Continuously Stirred Tank Reactor (CSTR)
General Reactor Design
Collect Required Data
Enthalpy of Reaction
Equilibrium Constant and Gibbs Free Energy
Reaction Mechanisms, Rate Equations, and Rate Constants
Heat and Mass Transfer Properties
Select Reaction Conditions
Chemical or Biochemical Reaction
Catalyst
Temperature
Pressure
Reaction Phase
Solvent
Concentrations
Determine Materials of Construction
Determine Rate-Limiting Step and Critical Sizing Parameters
Mixing
Heating and Cooling
Basic Principles
Stirred Tank Reactors
Catalytic Reactors
Preliminary Sizing, Layout, and Costing of Reactor
Estimate the Performance
Optimize the Design
Multiphase Reactors
Reactor Design for Catalytic Processes
Design of Bioreactors
Safety Considerations in Reactor Design
Capital Cost of Reactors
