Ethylene cracker and propylene cracker in ethylene cracking?
Thread Content
I’m new to ethylene cracking and would like to ask everyone a few questions: What are the functions of the cold box, the propylene compressor, and the ethylene compressor respectively? What is the ultimate goal of refrigeration? I hope everyone can offer some advice! Thank you so much! ! !
In the ethylene production process, the feedstock is heated in a pyrolysis furnace to produce gases. The separation of these pyrolysis gases is typically carried out using deep cryogenic separation methods (cryogenic chambers); through drying, deep cooling, hydrogenation reactions, and distillation, various fractions are obtained, including ethylene, C3 compounds, C4 compounds, and others.
It is primarily used to provide cooling for the demethanizer, deethanizer, and depropanizer, in order to separate C1, C2, C3, C4, etc.