Fluid catalytic cracking (FCC) is one of the most important conversion processes used in petroleum refineries. It is widely used to convert the high-boiling, high-molecular weight hydrocarbon fractions of petroleum crude oils to more valuable gasoline, olefinic gases, and other products. Cracking of petroleum hydrocarbons was originally done by th...
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http://en.wikipedia.org/wiki/Fluid_catalytic_cracking
(from the article `petroleum refining`) ...units produced small quantities of unstable naphthas and large amounts of by-product coke. While they succeeded in providing a small increase in ...
Found on
http://www.britannica.com/eb/a-z/f/40
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