rectifier scheme 1

This special kind of vane pack is made with some vanes forming large canals with the scope to rectife the caotich gas flowrate coming from the inlet.
Passing through the rectifier the gas is calmed and the flow rectified. This is very important to obatin a proper distribution of the flow at the inlet of the other gas separator as starightners and vane packs.
The rectifier is not designed to separate liquid droplets from the gas flow but just to calm the flow. 

This elements are usually located over the parallel plates pack in order to intercept and redirect the gas flow. Usually, before the rectifier, is placed a "chute" to intercept the gas and introducing it in the rectifier.

RECTIFIER 1
RECTIFIER 3
RECTIFIER 2