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What impact will the addition of scale inhibitors to catalytic cracking slurry have on the properties of the slurry?

2016-02-23View Original

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To suppress scaling and promote flow, scale inhibitors are generally added to catalytic cracking slurry. Question: 1. What are the typical components of scale inhibitors? What is its nature? 2. What impact will the addition of scale inhibitors have on the properties of catalytic cracking slurry? (Density, four components, etc.):handshake:handshake:handshake
Reply #22016-02-23
1. What are the components of general scale inhibitors? What is its nature? The components are kept secret by the manufacturer; even if the formula is provided, only the main ingredients are disclosed, while the key components remain secret. In terms of nature, they are mainly divided into two categories: oil-loving and water-loving, that is, scale inhibitors that are dissolved using oil or water. There are currently two types of scale inhibitors: one is used in reactions at temperatures above 500 degrees, such as coking and delayed coking; the other is used in reactions at lower temperatures, such as those in catalytic cracking. The reason why scale inhibitors can prevent scaling is… 2. What effects does the addition of scale inhibitors have on the properties of the catalytic cracking slurry? (Density, four-component systems, etc.) This is mainly due to the following functions of it: 1. Cleaning and dispersing properties, which are characteristic of its presence of surfactants; 2. Antioxidant properties, which help prevent certain polycondensation reactions and asphaltification reactions; 3. Inhibition of polymerization, preventing the accumulation of impurities; 4. Metal-chelating properties, which suppress the catalytic action on oils that could lead to unwanted reactions; 5. Corrosion resistance.
Reply #32016-02-24
The answers aren’t specific enough, especially for the second question. Could you explain it in more detail regarding its nature?
Reply #42016-02-24
It should not have a significant impact on the properties of the slurry
Reply #52016-02-25
After adding a scale inhibitor to the catalytic cracking feedstock, the greatest effect on its properties is a reduction in the tendency to form scale; in other words, the feed oil is less prone to scaling.
Reply #62016-02-25
So, will it have an impact on density, group composition, and things like that?
Reply #72016-02-26
It depends on the amount added. It is generally used as an additive, and the amount added is not sufficient to affect the density of the raw material; however, it’s hard to say anything about the elemental composition. Have the laboratory test samples with and without the additive to see the changes in the data. Such problems cannot be resolved through speculation and imagination; rather, they require testing and measurement. Natural sciences focus on using data to illustrate things.
Reply #82016-02-27
Scale inhibitors are injected into the slurry system; you guys inject them into the crude oil system

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