Cracking T4L8
True or false?There is a high demand for shorter fractions to fuel cars trains in buses
True
Fractions with longer chains, harder or easier to burn.And do they make more or less profit
Hard to burn and less profitable
What does cracking do
Breaks up long hydrocarbons to overcome the supply demand problem of high demand for short chain fractions and less demand for long change fractions
What is cracking
That thermal decomposition of hydrocarbons. Most often alkanes
True or false? It is easy to predict how many alkenes and alkanes will be produced
False. It will be produced quite random with multiple possibilities Arising from one type of long chain , even hydrogen can be produced
What are the two methods for cracking
Catalyst cracking, which uses heat of 600 to 700°C. This uses a catalyst from Silica or Alumina. Thermal cracking , which uses a heat of 850°C. This uses no catalyst with higher temperatures.
How can we demonstrate cracking
In the laboratory
What is an alkane
And organic molecule and pure hydrogen chain
What is an alkene
A hydrocarbon with double carbon bonds
What can an alkene produced
Plastic
What can an alkane produce
Fuel E.g diesel or petrol
How is cracking achieved
By Thermal decomposition