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Petroleum

Unit 2

QuestionAnswer
Fractional distillation vaporized at 350C, different chain lengths condense at different temperatures. Fractions draw off at different levels
Cracking breaking longer chained hydrocarbons into shorter chained hydrocarbons
catalytic cracking hydrocarbons are passed over a catalyst before being cracked.
Problems with straight chained alkanes tend to auto ignite resulting in knocking
How to reduce knocking use branched and cyclic alkanes to create a higher octane rating.
Isomerisation straight chained alkanes are converted into branched alkanes
reforiming straight chained alkanes are converted into cyclic alkanes.
Created by: 07blandforderin