This metal passivant or called passivator can effectively prevent the heavy metal elements from being deposited on the catalyst, which will poison or inactivate the catalyst and cause the catalyst to become selective spoiled, resulting in the reduced light oil yield.
1.Stable performance, low toxicity, no smell and water soluble.
2.High content of effective component, low consumption.
3.Good atomization and dispersibility property.
4.It contains rare-earth element, and can act as normal metal passivation agent , can also raise the activity of balanced catalyst.
|Apperance||Light yellow even fluid|
|Freezing Point ℃, <||-10|
|Solubility||Soluble in water|
Package and Notice
1.Packed in plastic barrel, net weight is 200kg.
2.It shall be stored in cool, dry places, kept away from fire, handled with care.
1.The unit feed should be even, the passivation agent should be added continuously.
2.Balance catalyst must be kept at certain activating level, no less than 50m%
Normal passivation agent application volume(Kg/h)=4F*Cm*10-3
in the equation,
F stands for catalytic cracking unit feeding speed (t/h)
Cm stands for Nickel and vanadium content (ppm) in the catalytic cracking unit feed
In practice production, if metal passivation agent has never been used before, it can be added to the system in faster speed, i.e. 2-3 times of normal speed, meanwhile, adjust the amount of passivation agent according to the passivation result. After a certain period of fast mode adding, if the gas production ratio and hydrogen content in dry gas and in fat gas remain unchanged, the passivation agent fast adding mode should be stopped promptly, and add the agent according to normal value.