Can 20# steel be used for the tube bundle in the paraffin oil cooling water tank?
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Can 20# steel be used for the tube bundle in the paraffin oil cooling water tank?
Since the water tank coils are constantly submerged in water and oxygen is inevitably present, severe corrosion occurs there; therefore, it is recommended to use tubes made of a more durable material for constructing these coils.
The wax oil tank you mentioned – does it belong to the coking unit or the catalytic unit? As for the means used to cool the wax oil after it leaves the unit, it’s coolers; there seems to be no tank involved. Only in cases where oil slurry is discharged externally or during emergency oil discharge from the coking unit is a cooling tank used. For such coolers, ordinary materials are sufficient; there’s no need to use materials like Cr5Mo or higher-grade materials.
We use ordinary carbon steel material here!
Some questions are not clearly stated, making it impossible to answer them; we too sometimes make mistakes.
This approach is correct; he may not be able to explain it clearly, but it’s essential to ask for clarity! The meaning must not be changed!
It’s best not to use carbon steel, as it will corrode