DP-2021 FCC metal trapping aids

Dp-2021 catalytic cracking metal trap additive is produced by the company's unique modified nano mg Al hydrotalcite technology. The MgO content is nearly 70%, and the wear index, particle size distribution and bulk specific gravity are superior to or close to ordinary FCC catalysts. The use of this product can greatly reduce the influence of heavy metals such as vanadium, nickel, iron, calcium and basic nitrogen in the catalytic cracking feedstock on the activity and selectivity of the catalyst, and can reduce the regeneration temperature of the regenerator and the emission of SO3 in the flue gas. It is especially suitable for the heavy oil catalytic cracking unit processing ultra heavy feedstock (the ratio is greater than 0.92 g/ml, the CCR is greater than 5%, and the balance agent ni+v is greater than 7000ppm).

Using this product can achieve the following effects:
The unit can process more heavy raw materials, such as residual oil, which can reduce the consumption of the main catalyst of the unit, maintain the system activity unchanged, effectively trap the metal vanadium, nickel, iron and calcium in the raw materials, neutralize the metal sodium and basic nitrogen, and reduce the impact of heavy metals and other pollutants on the performance of FCC catalyst. It can effectively reduce the carbon on the surface of the catalyst, thus reducing the regeneration temperature of the device. It can reduce the Sox emission of device flue gas.

Industrial application data show that: after adding dp-2021 type catalytic cracking metal trap additive with a storage of about 4-5% in the system for about 2 weeks, the catalytic unit can generally increase the residual oil processing capacity by 15-20%, or process heavier feedstock (the residual carbon of feedstock increases by 15-20%, and the Ni + V + Fe + Ca increases by 10-15%). The conversion rate increases by 1.5-2%, and the total liquid yield increases by about 0.8-1.5%. The Sox content of flue gas can be reduced by 40-50%, the consumption of fresh catalyst can be reduced by about 20%, the regeneration temperature can be reduced by 4-8 ℃, and the alkali consumption and waste salt production of flue gas wet desulfurization unit can be reduced by about 50%.