Catalytic cracking: which is more prone to cracking, alkanes or aromatics? Why is it necessary to raise the temperature of coker wax oil?
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Looking at the technical Q&A, sometimes it says that aromatic hydrocarbons react quickly, and other times it says that alkanes react easily
The greater the number of carbon atoms in an alkane, the longer its chain, and the easier it is to crack； In aromatic hydrocarbon cracking, the side chains are broken first, followed by ring opening; it is also related to the structure and steric hindrance
Is the temperature of coker wax oil increased due to an abundance of aromatics? Why are there more alkanes than aromatics in the tail oil?
The cracking reaction certainly involves alkanes! There are lots of paraffinic aromatics! The reaction heat needs to be high! And the conditions are harsh