1. What is BMCI Number?

Definition: Bureau of Mines Correlation Index (BMCI) number is defined as a number that is used to characterize the aromaticity of a crude oil.

Purpose: It helps petroleum engineers and chemists assess the quality and composition of crude oil samples.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( BMCI \) — Bureau of Mines Correlation Index number
• \( T \) — Temperature (in Kelvin)
• \( SG \) — Specific Gravity of the oil

Explanation: The formula correlates temperature and specific gravity to estimate the aromatic content of petroleum fractions.

3. Importance of BMCI Number

Details: BMCI is important for refinery operations as it helps predict yields of various petroleum products and assess processing characteristics.

4. Using the Calculator

Tips: Enter the temperature in Kelvin and specific gravity (default 0.82). Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What does a high BMCI number indicate?
A: Higher BMCI numbers indicate greater aromatic content in the petroleum fraction.

Q2: What's the typical range for BMCI numbers?
A: BMCI typically ranges from 0 to 100, with higher values indicating more aromatic content.

Q3: How is temperature measured for this calculation?
A: Temperature should be the average boiling point of the petroleum fraction in Kelvin.

Q4: What reference material is used for specific gravity?
A: Specific gravity is typically measured relative to water at 60°F (15.6°C).

Q5: Can BMCI be used for all petroleum products?
A: BMCI is most useful for middle distillates and heavier fractions, not for light ends like gasoline.