The Standard Stirred Tank

1 The Tank or Vessel The most common version of the tank or vessel is a vertical cylindrical tank with a dish end at the bottom. In exceptional cases (mostly old designs), the bottom may be conical. In this latter case, there is always the danger of inadequate mixing in the conical part. If a solid phase is an integral part of the 

Design of Multiphase Reactors, First Edition. Vishwas Govind Pangarkar. 

FIGURE 7A.1 Typical stirred tank reactor configuration. 

Breakup of tangential velocity into axial and radial velocity components 

In such cases, a clearance (approximately 25-50 mm) is maintained between the baffles and the tank wall to allow free movement of the solids through this clearance. Bulk of the tangential component, V, is still disrupted by the rest of baffles. 

---