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them paper 2

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Question:

Describe the stages of fractional distillation of crude oil

Author: ruby hatton



Answer:

- crude oil is heated to a very high temp so it boils and all hydrocarbons evaporate and turn into a gas - crude oil vapour is fed into the fractional distillation column which is hotter at the bottom (350) and cooler at the top (25) - hydrocarbon vapours rise up the column + condense when they reach their boiling point - liquid fractions are removed and remaining hydrocarbons continue to rise up the column until they reach their boiling point and condense


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