Question

Sequence of unit operations in process of refining of crude oil:
A. Deodourization
B. Removal of soaps
C. Winterization
D. Neutralization
E. Bleaching
Choose the correct answer from the options given below:

• A. B, A, D, C, E
• B. A, E, B, D, C
• C. E, B, C, A, D
• D. D, B, E, A, C

Hint:

Refining sequence:
Neutralization removes free fatty acids.
Bleaching removes color pigments.
Deodourization removes odors.
Winterization removes waxes.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Crude oil refining involves several unit operations.
These operations are performed in a specific sequence to remove impurities.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the sequence of operations in oil refining.

Step 3: Detailed Explanation:
The correct sequence of refining crude oil is:
Neutralization \(\rightarrow\) Removal of soaps \(\rightarrow\) Bleaching \(\rightarrow\) Deodourization \(\rightarrow\) Winterization.
Thus, the order is D, B, E, A, C.

Step 4: Final Answer:
The correct sequence is D, B, E, A, C.
Hence, the correct option is (D).