What is the heat source in the regenerator during catalytic cracking?
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At startup, the heat source for the regenerator is the auxiliary combustion chamber; so during normal operation, where does the heat for the regenerator come from?
The heat generated by the coke attached to the catalyst in catalytic cracking and the combustion of main air
The regeneration process of the spent catalyst is an exothermic reaction, and no additional heat source is required during normal operation.
Burned! Burned! Burned! Important things should be said three times!
The main source of heat in the regenerator is the combustion of C attached to the catalyst:lol:lol
1. The heat for the dense phase in the regenerator is provided by the auxiliary combustion chamber during the initial startup phase. 2. After reaching 380°C, burn oil is sprayed, with the heat generated by the combustion of this oil providing the energy. 3. After fuel injection, the coke carried by the catalyst enters the regenerator for dense-phase combustion, generating heat. 4. If the raw material components are light and the amount of coke formed is low, resulting in an inability to maintain thermal balance, combustion oil can be sprayed to supply additional heat.
During normal operation, the heat required for the reaction is primarily provided by catalyst coking, which is a reaction between carbon and oxygen to produce carbon dioxide or carbon monoxide; this is an exothermic reaction.
After normal feeding, the bed temperature is maintained by the combustion of the carbon attached to the spent catalyst