Contains Se Metal Passivator Used as Protection of Crude Oil Pipeline Equipment/Oil Refinery Additive

• Customization: Available
• Environmental Protection: Yes
• Color: Brownish Red
• Model NO.: SD-NV
• Appearance: Liquid
• Kind: Metal Passivator
• Application: Fuel Additives
• Sb Content (M/M): ≥ 14%
• Se Content (M/M): ≥ 3.0%
• Solubility: Water Soluble
• Density (20 ºC): ≥1200kg/M³
• Condensation Point: Summer≤0ºC, Winter≤-15ºC
• pH Value: 5-8
• Transport Package: Plastic Drum
• Specification: 250KG/Drum
• Trademark: TianXi
• Origin: China
• HS Code: 38119000
• Production Capacity: 1000ton/Year

Product Description

 

Product Introduction

 

 

The residual oil blended in the catalytic cracking process contains a large amount of metals (such as Ni, V, Na, Fe, etc.), which continuously deposit on the FCC catalyst, leading to catalyst metal poisoning, reduced activity and light oil selectivity, resulting in an increase in product H2, low-carbon gas, and coke, and a decrease in gasoline yield. Among them, nickel and vanadium have the most significant metal poisoning.
Passivation agents are all water-soluble liquids, and the main components of passivation agents are composed of highly stable compounds, which give them high stability, high decomposition temperature, and uniform distribution on the catalyst. The particles of Sb2O3 and La2O3 formed after the decomposition of passivating agents are small and have a large specific surface area, which increases the probability of contact between passivating agents and toxic metals, achieving the goal of efficient capture of toxic metals. Various types of passivators have the following characteristics:
1.High stability: The decomposition temperature is greater than 300 ºC, and it will not decompose before entering the riser, which can mix well with the raw oil.
2.It is a water-soluble real solution: It is a real solution that is miscible with water and does not precipitate in the heated section before mixing with the raw oil, so there will be no pipeline blockage during the filling process.
3.Good dispersibility and high activity: Organic metal compounds adsorbed on catalysts decompose to form high surface area metal oxides, achieving the goal of efficiently capturing toxic metals. Therefore, this passivator has the characteristics of good dispersibility and high activity.
4.Low toxicity: Due to the synthesis of water-soluble organic metal compounds as the main passivator, the passivator does not contain phosphorus or sulfur, has no irritating odor, does not corrode the skin, and has low toxicity.

Product Parameters

 

Metal passivator

Item	SD-NF	SD-NV
Sb content (m/m)%	≥ 17	≥ 14
Se content (m/m)%	-	≥ 3.0
Solubility	Water-soluble	Water-soluble
Density (20 ºC)/(kg/m3)	≥1200	≥1200
Condensation point/ºC	Summer≤0,winter≤-15	Summer≤0,winter≤-15
PH value	5-8	5-8

 

Usage and dosage

 

1.Use a metering pump to inject passivating agent into the raw material pipeline before the riser, and enter the riser together with the raw material. The amount added depends on the amount of metal poisoning. The research results indicate that the amount of passivator added should achieve an antimony nickel atomic ratio of 0.3-0.5 (Sb: Ni=0.3-0.5) on the equilibrium catalyst; The optimal cerium vanadium atomic ratio is 0.5-0.8 (Se: V=0.5-0.8).
2.According to the heavy metal content in the raw materials, the general addition amount is 50-150ppm based on the feed rate.

Packaging & Shipping

1.This product is a water-soluble liquid with no risk of combustion or explosion, and should be stored in a dry place. The  storage period is two years.
2.This product is packaged in plastic drums with a net weight of 250 kilograms per drum.

 

About us

 

Dongying Tianxi Chemical Co., Ltd. is based in Dongying City, Shandong Province, China, with 20 years of expertise in the production and sale of oil refining additives and fuel oil additives.We collaborate with experts from prestigious institutions such as China University of Petroleum, the Research Institute of Petrochemical Science, ensuring top-tier technical guidance. Our team includes numerous highly skilled professionals dedicated to the research and development of oil refining additives and fuel oil additives.
We warmly welcome you to visit us and explore potential business opportunities.