Copper poisoning in catalytic cracking catalysts
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What are the phenomena and data related to copper poisoning in heavy oil catalytic cracking catalysts? Have any teachers encountered this? I hope to receive guidance from all the teachers. Thank you!
After heavy metal poisoning, the selectivity of the catalyst is reduced, leading to an increase in the production of coke and gases, a decrease in the liquid yield, and an increase in the unsaturation of the products. Furthermore, the yields of C3 and C4 in the gas decrease. Dry gas production increases, re-refining oil increases, and slurry volume increases.
Did you use a denitration agent?
Have you encountered catalyst copper poisoning? Where does copper come from? What is the content?
The concentration is around 100PPM; I’m just a bit suspicious now – it probably comes from the raw materials. Teacher, have you never encountered it?
Teacher, have you ever encountered it? At what level of copper content does poisoning occur?
Catalyst copper poisoning – I’ve never encountered it.
We haven’t encountered such a situation here, but I remember reading that heavy metal poisoning of catalysts mainly affects their structure, which in turn impacts the distribution and quality of the products!
The copper content in the raw material is very low, and even less remains after the pre-treatment of the raw material