A mixture consists of two (or more) elements or copunds that aren't chemically bonded to each other
5 of 26
What are hydrocarbons?
Fuels, such as petrol and diesel
6 of 26
Hydrocarbons are made of just ...... and ........?
Carbon and Hydrogen
7 of 26
Are the different hydrocarbon molecules in crude oil chemically bonded to on another?
No
8 of 26
Why are the different hydrocarbon molecules in crude oil not chemically bonded to on another
Because there are no chemical bonds between the different parts of a mixture
9 of 26
Because the hydrocarbon molecules in crude oil are not cheically bonded to eachother, this means that they all keep their original ........., such as their .......... ......
They all keep their original properties, such as their condensing points
10 of 26
What are the properties of a mixture?
Just a mixture of the properties of the seperate parts
11 of 26
How can the parts of a mixture be seperated out?
By physical methods
12 of 26
How is crude oil split into its separate fractions?
By fractional distillation
13 of 26
What does each fraction of crude oil contain?
Molecules with a similar number of carbon atoms to each other
14 of 26
What is crude oil split into?
Separate groups of hydrocarbons
15 of 26
How does the fractionating column work?
Continuously
16 of 26
What does the fractionating column have piped in at the bottom?
Heated crude oil
17 of 26
Describe what happens when heated crude oil in piped in at the bottom of a fractionating column?
The vapourised oil rises up the column and the various fractions are constantly tapped off at the different levels where they condense
18 of 26
As the crude oil travels up the column, do the length of the molecules become longer or shorter?
Shorter
19 of 26
What type of gas is at the top of the fractionating column?
Refinery Gas (bottled gas)
20 of 26
What is at the bottom of the fractionating column?
Bitumen
21 of 26
What is one above bitumen in the fractionating column? (Comes out as 340'C)
Oil
22 of 26
What is above oil in the fractionating column? (Comes out at 250'C)
Diesel
23 of 26
What is above diesel in the fractionating column? (Comes out at 180'C)
Kerosene (Jet Fuel)
24 of 26
What is above kerosene in the fractionating column? (Comes out at 110'C)
Naphtha
25 of 26
What is above naphtha in the fractionating column? (Comes out at 40'C)
Comments
No comments have yet been made