Catalytic cracking is one of the main means of lightening heavy oil. In recent years, the feed oil has become heavier and worse, and the content of gum, asphaltene, S, O, N and metal has increased, which makes the scaling problem of FCC slurry system more and more serious, reduces the heat transfer efficiency of heat exchanger, increases the resistance of pipeline transportation, and causes the unit to reduce production, even abnormal shutdown.
MJ-ZG slurry scale inhibitor is a multi-functional compound additive developed for the scaling mechanism of FCC feed oil. The anti-scaling performance of this product reaches and surpasses that of similar products at home and abroad. It is an important means of safe, balanced and long-term full-load production of catalytic cracking unit, reducing energy consumption and improving economic benefits.
Product Composition
Inhibitors, dispersants, passivators, antioxidants, etc.

Performance and use
1. It can effectively inhibit scaling formed by free radical polymerization initiated by S, N and O in raw materials and catalytic polymerization initiated by Fe and Cu ions, and protect metal surface.
1. It can eliminate its catalytic properties for polymerization and its adhesion to polymers.
2. Enhance the corrosion resistance of metal surface, which has good dispersing effect on insoluble suspended solids inherent in raw materials and prevents their agglomeration and deposition.
3. It has the advantages of non-toxicity, no peculiar smell, good oil solubility, moderate viscosity and convenient use.
4. The product does not contain metal and has very low ash content. It has no adverse effect on the subsequent hydrogenation catalyst and product distribution.
5. It has good high temperature stability.
Addition amount
According to the quality of crude oil, the general injection volume is 50-100 ppm. At the beginning of use, the dosage can be increased and then gradually reduced.
Usage method
1. This product is used in pre-cleaned pipes, and the anti-scaling effect is better.
2. This product is mainly used for slurry system scaling. It can be injected between the bottom of fractionator and the inlet of heat exchanger. It is suggested that the injection port be opened at the inlet of slurry pump.