Catalytic cracking and ethene uses Flashcards
A cracking reaction and uses for the ethene obtained from it
1
Q
What’s the product of…
C₁₀H₂₂ →
decane →
This reaction requires heat and a catalyst in order to take place.
A
→ C₈H₁₈ + C₂H₄
→ octane + ethene
This is a catalytic cracking reaction.
All cracking reactions give:
- an alkane with a shorter chain than the original, and a short-chain alkene
- or two or more alkenes and hydrogen.
2
Q
What’s the product when
Ethene from cracking is reacted with steam
A
Ethanol
3
Q
What’s the product when
Ethene from cracking is polymerised
A
Poly(ethene)
(polythene)
4
Q
What’s the product when
Ethene from cracking is reacted with chlorine
A
Chloroethene
(vinyl chloride)
5
Q
What’s the product when
Chloroethene (vinyl chloride) is polymerised
A
Poly(chloroethene)
(PVC)
6
Q
What’s the product when
Ethene from cracking is reacted with benzene
A
Phenylethene
(styrene)
7
Q
What’s the product when
Phenylethene (styrene) is polymerised
A
poly(phenylethene)
(polystyrene)
