What is the impact of changes in the properties of catalytic cracking feedstock oil on the reaction temperature?
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When the catalyst activity remains unchanged, the circulation rate remains unchanged, and the processing volume remains unchanged, with only the properties of the feed oil changing, how does the reaction temperature change? Dear marine experts, please share your conclusions more! ! !
It is uncertain whether the properties of the raw materials will become heavier or lighter, whether changes are needed in the distribution of the final products, and the reaction temperature cannot be determined either.
Theoretically, with a constant catalyst circulation rate, the reaction temperature decreases when the properties of the feedstock become lighter, and it increases when the properties of the feedstock become heavier. In practice, the heat taken from the regenerator for coking must be adjusted according to the thermal equilibrium between the two devices, while the actual reaction temperature remains unchanged.
The question you raised is also something I want to know; the product is the result of a reaction.
A catalytic reaction itself is a system of phases and interactions, as well as a self-balancing process. In practical operation, the regeneration temperature has a significant impact on the reaction temperature; changes in the properties of the raw materials directly affect the amount of coke formed, which is reflected in changes in the regenerator temperature and the amount of steam generated. It’s not possible to determine solely how the reaction temperature affects it
This post was last edited by Feilongzaiyou on 2018-6-20 09:01. What’s the theory behind it? There will definitely be fluctuations in operations, as the properties of the raw materials keep changing
As the properties of the feedstock become lighter, the reaction heat required for cracking decreases, which leads to an increase in reaction temperature. At the same time, the amount of coke produced decreases, causing the regeneration temperature to drop; this in turn results in a decrease in reaction temperature. However, compared to when using the original feedstock, the reaction temperature remains somewhat higher. This is the self-regulating balance mechanism of the reaction-regeneration system. All of the above is based on the assumption that the operating conditions remain unchanged.
Changes in the properties of the raw materials are reflected in changes in the amount of raw coke produced, but the reaction temperature remains constant
You can just ask Justice Hyun at that time:handshake