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LC Fuels and Thermochemistry [PDF Document]
LC Fuels and Thermochemistry [PDF Document]

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... • The _______ main fossil fuel, also formed from the remains of marine organisms. • Often known as _____oil, is pumped from deep beneath Earth’s ________. • It must be separated into simpler mixtures, or fractions, such as _______ and heating ______. ...
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Lecture 28 - The Cook Group @ NDSU

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... itself to form long chains or rings of carbon atoms. • Carbon forms strong bonds to other nonmetals such as hydrogen, nitrogen, oxygen, sulfur, and the halogens. • Several million (11 million-plus) are known, and the number continues to grow rapidly. • Carbon is the most important compound to the bi ...
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NCEA Level 1 Chemistry (90932) 2015

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... In this process, the heavy oil charge is passed through a preheater, where the oil is vaporized & heated to cracking temperature (420-4500C). The hot vapour are passed to the catalytic chamber containing catalyst. In a catalytic chamber also the temp. is maintained at 420 to 4500C & a pressure of 1. ...
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Cracking (chemistry)



In petroleum geology and chemistry, cracking is the process whereby complex organic molecules such as kerogens or heavy hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon-carbon bonds in the precursors. The rate of cracking and the end products are strongly dependent on the temperature and presence of catalysts. Cracking is the breakdown of a large alkane into smaller, more useful alkanes and alkenes. Simply put, hydrocarbon cracking is the process of breaking a long-chain of hydrocarbons into short ones. More loosely, outside the field of petroleum chemistry, the term ""cracking"" is used to describe any type of splitting of molecules under the influence of heat, catalysts and solvents, such as in processes of destructive distillation or pyrolysis. Fluid catalytic cracking produces a high yield of petrol and LPG, while hydrocracking is a major source of jet fuel, Diesel fuel, naphtha, and again yields LPG.
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