Initial Fractionation and Properties of Crude Oils Flashcards
Why do we use TBP analysis ?
It gives the yields and the qualities of the petroleum cuts of a crude oil
What is the BP range for the gas cut ?
BP < 0°C
What is the carbon number range for the gas cut ?
C1 to C4
What are the different components of the gase cut ?
- refinery fuel gas C1-C2
- Propane C3
- Butane C4
What is the BP range for the gasoline cut ?
0 < BP < 140-185°C
Light naphtha : 0 < BP < 80-90°C
Heavy nqphthq : 80-90 < BP < 140-185°C
What is the carbon number range for the gasoline cut ?
C5 to C10/C11
What are the three subcuts of the gasoline cut ?
- iC5
- light naphtha C5-C6
- heavy naphtha C7-C10/11
What are the possible outputs of light naphthas ?
- Gasoline Base (RON 60-80)
- Petrochemical base (after desiopentanizer)
- Isomerization
What are the possibles outputs of the heavy naphthas ?
Catalytic reforming to sharply increaseoctane number
What is the BP range of the kerosene cut ?
185 < BP < 220-240°C
What is the carbon number range for the kerosene cut ?
C9/11 to C13/14
What is the average sulfur and mercaptants content in the kerosen cut ?
0.01 < sulfur content < 0.3 wt %
10 < mercaptants < 300 ppm
What are the possibles outputs of the kerosene cut ?
- Jet fuel
- Gazole base if S content low enough
What is the BP range of the gasoil cut ?
220-240 < BP < 350-380°C
What is the carbon number range of the gasoil cut ?
C13/14 to C20/25
