✔ Reflux is a liquid stream returned to the column to improve separation.✔ Helps achieve sharper separation between different fractions.✔ Increases efficiency by maintaining ...

The Desalter is a crucial part of the CDU that removes impurities from crude oil before it enters the furnace. ✔ Key functions of the Desalter:

✔ Pump-around circuits remove heat from specific sections of the column.✔ Help reduce furnace fuel consumption by using heat recovery.✔ Control temperature

✔ Hydrogen breaks S-C bonds, converting sulfur compounds into H₂S.✔ Prevents coke formation by saturating olefins.

🔹 The hydrogen recycle system:✔ Reuses excess hydrogen gas after separating it from reaction products.✔ Uses a recycle gas compressor to send hydrogen back to the reactor.

A vacuum is a space or environment where the pressure is significantly lower than the atmospheric pressure. In a perfect vacuum, there would be no matter (air, particles, gases, etc.) present, but in practice, it’s nearly ...

Sulfur removal is critical because:✔ Protects reformer catalyst – Sulfur poisons the Pt-based catalyst in catalytic reforming.✔ Reduces SO₂ emissions – Prevents air ...