Catalytic cracking reaction
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This post was last edited by jacques0920 on 2016-12-23 08:27. Hello everyone, since catalytic cracking is an endothermic reaction, where does the excess heat from the reaction come from (by using coke to absorb heat)? Thank you.
The reaction heat is carried away by the regenerant
The catalyst acts as a heat carrier, transporting the heat generated during the coking process to the reaction zone to maintain an appropriate reaction temperature.
After the reaction, coke is produced; it is carried by the catalyst to the regenerator where it is burned to generate the heat required for the reaction as well as excess heat. This excess heat is carried away by the subsequent oil and gas streams and the flue gases, allowing it to be reused； Generally, a large amount of heat is generated, which can be utilized by internal and external heat exchangers to produce the steam needed for daily use!