I’d like to ask some friends who work in ethylene production plants
Thread Content
The company has now adopted the cryogenic crystallization process. I would like to ask those working in ethylene plants: for systems composed of low-temperature pipelines or equipment, what process steps should be followed during shutdown to meet the conditions required for hot work? Steam purging is not to be considered.
For low-temperature pipelines containing oils such as C8 aromatics, this treatment method is not appropriate; I’m not sure what to do
First, pour out the liquid, then release the pressure, and subsequently fill the system with nitrogen for displacement. Once the combustible content in the system is below 0.2%, work can be carried out using fire