Case Study:

Optimise batch operation and adherence to temperature profiles


Pharmaceuticals

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Customer Details
 
A pharmaceutical formulation unit in South India
Problems

Fluidised bed dryer and auto coater machine facing issues of:

- Process temperature fluctuation of ? 5-7 C

- Higher start-up time – more than twice the desired level

- Higher batch time

- Opening of actuated steam trap bypass valve through a pre-programmed function in PLC, leading to steam loss

- Higher steam pressure (4 bar g) to overcome condensate evacuation issues, leading to water hammer and hunting of control valve
Objective

To optimise batch operation and adherence to temperature profiles
Solution

- Forbes Marshall control valve (eVALVTM) for pressure and temperature control

- Steam operated pump trap (SOPT)
Benefits

- Operation of equipment at a pressure of 1.5-2 Bar g

50% reduction in start up time

Precise temperature control (?1 deg C)

8% reduction in steam consumption

Complete elimination of bypass valve opening uniform discharge of condensate

No water hammer and coil puncture