Crude oil and fuels
- Created by: yzannepepper
- Created on: 11-04-18 13:55
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- Crude oil and fuels
- Hydrocarbons
- Crude oil
- a finite resource found in rocks
- conditions to make it are high pressure and temperature
- must be separated into different substances with similar boiling points
- called Fractions
- Fractional Distillation
- Alkanes
- most of the hydrocarbons in crude oil are alkanes
- = saturated hydrocarbons
- CH4 - methane
- C3H6 - propane
- C2H6 - ethane
- C4H10 - butane
- all the carbon-carbon bonds are single covalent bonds
- They do NOT react with bromine water
- Crude oil
- Fractional distillation of oil
- some hydrocarbons only have a few chains of carbon atoms
- they make good fuels as they heat easily and burn well
- very flammable
- they make good fuels as they heat easily and burn well
- fractional distillation
- crude oil being separated into hydrocarbons with similar boiling points
- each fraction boils as a different temp range because of the different sizes of molecules.
- Video clip :
- some hydrocarbons only have a few chains of carbon atoms
- Cracking hydrocarbons
- the process of breaking down larger, less useful hydrocarbons into smaller, more useful ones is CRACKING
- takes place in an oil refinery
- the hydrocarbons are cracked as thermal decomposition takes place.
- include double covalent bonds
- alkenes
- an alkENE means that the molecules are unsaturated hydrocarbons.
- they burn in the air
- react with bromine water
- a positive test for alkenes is the orange bromine water should turn colourless
- Burning hydrocarbon fuels
- Hydrocarbons
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