The Logic Behind The Magic."Slug catcher and Inlet Separator".

The fluids at receiving facility flow to slug catcher, where gas and liquid are separated. The feed gas line is also equipped with a connection and injection quill for methanol injection to prevent hydrate formation.

The separation of gas from the liquid is occur in the slug catcher.in this case finger type slug catcher is usually used.

The slug catcher function us to separate two-phase fluid, The two-phase stream flows from the pipeline and enters the slug catcher section at about 2 m elevation above  ground. The last part of the pipe is also flanged to pieces of pipe slighty sloped downward to permit the separated liquid accumulate.

 Slug catcher outlet flow control

Slug catcher flow control is done by Level controller- FLow controller (LIC-FC) override control
in normal operation control valve is controlled by FIC. When the slug catcher reach level low, the signal selector will swtch controller to LIC until the level become normal.


Control schematic is shown as follow: