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[reihane1]

Dear All,

I am writting operating manual for lpg polishing and drying package and for determining purging loops I have following questions:

1-Is there any criteria for the volume of the loop which shall be purged.I mean for dividing whole unit to several loops is there any rule?

2-None of the psv's have by pass and there is only one purging connection on regeneration gas K.O drum, how can I introduce nitrogen and depressurize aftur purging?

3-how much shall be the final oxygen content 3,1 or 0,2% of oxygen?

4-is there any need to purge utility lines as well?

 

Thank you very much