Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download 7 - Fractional Distillation and Cracking
Transcript
SCH4C – Organic Chemistry 565329119 Date: ___________________________ Fractional Distillation and Cracking Where do Hydrocarbons come from? We extract carbon as __________________ (a liquid), which comes from petroleum (a mix of gases, liquids, and solids containing C atoms of different sizes) Petroleum comes from ____________________ due to the breakdown of organisms over ______________ of years What do we do with crude oil? We use _____________________________ to separate crude oil into ___________________ hydrocarbons These hydrocarbons are used for a variety of things essential to life Heat the mixture at a ____________________ _______________________ in a tower Turns to _______________ Gas cools as it rises Each component ___________________ at their own _____________________ Smallest hydrocarbons at the ___________ (lowest BP) and largest hydrocarbons at the ___________ (highest BP) Page 1 of 2 SCH4C – Organic Chemistry 565329119 Cracking The resulting fractions have ____________ uses depending on their ____________ Some fractions are more useful than others Shorter hydrocarbons are more useful than longer chains because they ________________________________ Hydrocarbons are mixed with a catalyst and heated up to a temperature of upwards of 500 C, which breaks the longer chains into shorter chains Environmental Concerns Oil is in demand and it is a ________________________ resource Oil fields and stations have the ability to harm the environment should there be an incident Page 2 of 2
