Cracking Flashcards
(6 cards)
1
Q
What are the two types of cracking and the raw material involved?
A
Thermal and catalytic with crude oil
2
Q
What temperature and pressure is needed for thermal cracking and for catalytic cracking?
A
Thermal 1000-1200k / very high temp
70atms / very high pressure
Catalytic 800-1000k with 1 atm pressure
3
Q
What is the time taken for both cracking methods?
A
Thermal 1s
Catalytic 2-4s
4
Q
What catalyst is used for catalytic cracking?
A
Aluminium silicate zeolite
5
Q
What are the products of thermal cracking
A
Alkanes and short chain alkenes
6
Q
What are the products of catalytic cracking
A
Branched and cycloalkanes and aromatic hydrocarbons
