The gas division started operations for the first time
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For the first start-up of the gas section, is it more appropriate to purge it with steam or nitrogen before feeding? Thank you so much!
Has it been purged section by section through blasting?
This post was last edited by Refiner on 2018-4-7 at 11:06. Nitrogen is used to purge the flare line before feeding material in
The last edit to this post was made by jiutianyunhe on 2018-4-6 at 10:05. Inerting is carried out using nitrogen before feeding the material; the air (oxygen) in the system is completely replaced before the material is introduced
Nitrogen is used to displace air, and liquefied gas is used to replace nitrogen; this is generally the process followed
We usually use steam to remove air, then conduct a pressure test with nitrogen; after the test, the pressure is released and liquefied gas or propylene is introduced
Does steam drive out air? Isn’t nitrogen generally used to displace air and fill with pressure? So your towers and pipelines have been tested for their expansion coefficients, and the pipelines also need to be insulated, right?
Some pipelines and equipment are insulated, while most are arranged with exposed pipes