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CHEM 11.1 3A midterm 2 trimestre 2 petrochemicals and polymers - Coggle…
CHEM 11.1 3A midterm 2 trimestre 2 petrochemicals and polymers
fossil fuels
coal-->fossil plants
petrolium(crude oil) and natural gas-->fossil marine organisms(planktons)
non renuable
Most of the world's energy from burning oil.
petrolium is a mixture of many different hydrocarbons
befour use, the various hydrocarbon molecules are separated by refining (fractional distillation)
fractional distillation
using a fractional column
hotter at bottom
put petrolium in through tube and the different results exit out of their respective heat tube
using the different boiling points, rouphly related to number of C atoms
l'interno della terra
strati di materiali di diverse densità
disposti in strati
crosta(silicati leggeri)
mantello(silicati pesanti)
nucleo(metalli pesanti)
Catalytic cracking
larger molecules from heavier fractions can be broken into smaller more valuable molecules
takes place in reactor, particles of catalyst are mixed with the hydrocarbon at 500° C
C10H22-->C8H18 + C2H4