The impact of salts on catalytic cracking units
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Let’s discuss the impact of salts on catalytic cracking units Impact on the catalyst? Impact on the product?
I believe the impact of salts on catalytic devices depends mainly on the heavy metal ions contained in those salts; the most well-known example is vanadium, which damages the physical structure of catalysts, while nickel accelerates the dehydration reaction. There are also metals such as iron and copper. If there is an excessive amount of heavy metals in the feed oil, especially those mentioned above, the selectivity and activity of the catalyst are reduced, the yield of the target product decreases, the catalyst’s service life is shortened, and the energy consumption per unit of product in the plant increases. Of course, under certain conditions, some salts can have a significant corrosive effect on the equipment.