Harry Knapaman
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Cambridge IGCSE Science (Chemistry 1) Mind Map on Fractional distillation of crude oil, created by Harry Knapaman on 30/10/2013.

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Harry Knapaman
Created by Harry Knapaman over 11 years ago
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Fractionaldistillation ofcrude oilCrude oil is amixture of lots ofdifferenthydrocarbonsThe substances in crude oil can beseparated by the process calledFRANCTIONAL DISTILLATIONCoal, crude oil and gas are all fossil fuelsfossil fuels are madefrom dead plants andanimals that areburied for millions ofyearsThis is what happens duringfractional distillationThe oil is heated until mostof its has turned into gasThe gasses enter a tall towercalled fractionating columnIn the column its hot at the bottomand gets hotter as you go up thecolumn.Hydrocarbons with high boilingpoints leave the column near thebottomYou end up with the crude oilmixture separated out intogroups of hydrocarbonsThese groupsare calledfractionsEach fractionscontains a mixtureof hydrocarbonswith smallerboiling pointsThe separated fractions aremuch more useful than crudeoil.Double click this nodeto edit the textClick and drag this buttonto create a new node