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  1. Catalytic cracking uses a temperature of approximately 550°C and a catalyst close catalyst A person or thing that causes an event ... This is the way to test for a double C=C bond in a molecule ...

  2. Catalytic cracking is an ionic process involving carbonium ions (hydrocarbon ions having a positive charge on a carbon atom) and are produced by: (1) addition of a proton from an acid catalyst to an olefin, (2) abstraction of a hydride ion (H −) from a hydrocarbon by the acid catalyst or by another carbonium ion. Once the carbonium ions are ...

  3. Catalytic cracking tests were performed at a MAT (microactivity test) unit [5] with a RE-USY base catalyst and two blends respectively containing 11 wt.% sample I and the mechanical mixture added to the RE-USY base catalyst (overall concentration of additive 10 wt.%, ZSM-5 concentration 3.05 wt.%). The preparation of the RE-USY base catalyst and two blend catalysts follows the procedures ...

  4. Catalytic cracking is a chemical process used in petroleum refining to break down large hydrocarbon molecules into smaller, more valuable ones, primarily gasoline and diesel. This process uses catalysts to increase the reaction rates and improve the yield of desirable products while minimizing the formation of unwanted byproducts. Catalytic cracking plays a crucial role in maximizing the ...

  5. The formation of branched-chain alkanes, or iso-alkanes, leads to the production of gasoline with high octane numbers. This is the fundamental reason why catalytic cracking has replaced thermal cracking as the central process in a refinery geared to maximize gasoline production. A high octane number of gasoline is needed for current spark ...

  6. Cracking is an industrial process used to break low demand, long chain hydrocarbon molecules into more useful, small chain hydrocarbon molecules. Any long chain hydrocarbon can be cracked into smaller chain hydrocarbons; For example, kerosene and diesel oil are often cracked to produce petrol, alkenes and hydrogen; Conditions for catalytic cracking

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  8. Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst. The source of the large hydrocarbon molecules is often the naphtha fraction or the gas oil ...

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