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[khalidkhold]

Hello;
I am participating in developing a conceptual desgin for transporting different types of crude oil throught an existing pipeline, so batch by batch will be transported.
For such type of transportation as i know for seperation the 2 batchs of oil either to use kind of flexible pig, or to leave it without seperator.
my questions are:
1) Is or are there any other interface sperators can be used?
2) What are the advantages & disadvantages of each method?
Thanks