Problem Causes Solutions High salt content in crude after desalter Low wash water injection, poor mixing Increase wash water, ...
✔ Possible Causes: Blocked overhead condenser → Poor vapor condensation. Overloaded reflux drum → Excess vapor flow.
✔ Pump-around circuits remove heat from specific sections of the column.✔ Help reduce furnace fuel consumption by using heat recovery.✔ Control temperature
✔ Reflux is a liquid stream returned to the column to improve separation.✔ Helps achieve sharper separation between different fractions.✔ Increases efficiency by maintaining ...
The CDU consists of several key sections, each playing a vital role in the crude oil separation process: 1. Preheat Train ✔ Crude oil is preheated using heat ...
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:
The Crude Distillation Unit (CDU) is the first processing unit in a refinery where crude oil is separated into different fractions based on boiling points. Below are key interview questions with detailed answers. ✅ General Process Questions 1️⃣ What is the ...
