Aviation turbine fuel (ATF/jet fuel) has an average boiling range closest to which common refinery fraction?

Chemical Engineering Petroleum Refinery Engineering Difficulty: Easy
Choose an option
  • A
    Lubricating oils
  • B
    LPG
  • C
    Diesel
  • D
    Kerosene
  • E
    Gasoline (petrol)

Answer

Correct Answer: Kerosene

Explanation

Introduction:Aviation turbine fuel (jet fuel) is a middle distillate with a boiling range designed for combustion stability, safety, and operability at altitude. Its range aligns closely with kerosene cuts.

Given Data / Assumptions:

  • Product: ATF/jet fuel.
  • Comparison set: LPG, gasoline, kerosene, diesel, lube oils.

Concept / Approach:ATF specifications (e.g., freezing point, flash point, volatility) are engineered around a kerosene-range distillate, not as light as gasoline nor as heavy as diesel/lube oils.

Step-by-Step Solution:1) Place ATF within distillation ladder: mid-distillate region.2) Identify closest standard fraction: kerosene-range hydrocarbons.3) Select answer consistent with specs and practice.

Verification / Alternative check:Jet-A/Jet-A1 products are essentially kerosene-type fuels; kerosene hydrocarbon distillation profiles match ATF closely.

Why Other Options Are Wrong:LPG and gasoline: Too light.Diesel and lube oils: Heavier boiling ranges.Gasoline: Different volatility and octane requirements.

Common Pitfalls:Equating ATF with diesel because both are middle distillates; ATF is typically lighter and more tightly specified in freezing point and smoke point compared with diesel.

Final Answer:Kerosene

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