Stripping light ends and volatile fractions out of crude oil is referred to as_____________________?
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Answer: C. Stabilisation
Explanation
Stabilisation is the refinery process of stripping light dissolved gases and volatile fractions out of crude oil or unstabilized gasoline. Removing excess volatile components prevents vapor lock and excessive tank breathing losses. Fractionation columns strip out methane, ethane, and propane to stabilize liquid vapor pressures. Unstabilized hydrocarbon liquids contain high concentrations of dissolved low-boiling gases. Stabilization towers use reboilers and condensers to separate volatile light ends effectively. Reid vapor pressure testing determines when a stabilized fuel meets safe transport limits.
Refineries must stabilize crude oil before sending it through long-distance pipelines or tankers. Stabilized gasoline ensures safe starting and storage performance in consumer motor vehicles. Proper vapor pressure control prevents dangerous pressure build-up in refinery storage vessels. Sweetening refers to the chemical removal or conversion of corrosive sulfur and mercaptan compounds. Dehydration involves extracting emulsified water from crude oil using electrostatic desalters. Visbreaking is a mild thermal cracking process used to reduce the viscosity of heavy residues.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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