Screening composition of the system balance agent for catalytic devices
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In the screening composition of the system balance agent for catalytic devices, the content of particles between 0-40um is very low. What causes this, and how can it be adjusted?
Due to wear of the catalyst, as the particles become smaller, loss occurs as a result of centrifugal forces; therefore, both large and small particles are present in small quantities. The proportion of particles within the 40-80 range generally accounts for over 50%. To maintain good fluidization of the catalyst, it is necessary to adjust the rate of addition of fine additives promptly, and to remove a portion of the catalyst from the regenerator on a regular basis
The proportion of particles in the 0-40μ range should be around 15% to 20%. If this amount is very low, it might mean that the centrifuging effect in the regenerator is not good, allowing smaller particles to escape from the centrifuge
Was the amount of freshener added a bit too little?
The catalyst in this section is a key component for catalytic fluidization; it absolutely cannot be too little, otherwise fluidization will be difficult! The reasons can be attributed to the catalyst itself, as well as operational conditions; there are also factors related to the equipment. Generally, if the amount of this component is low, it is recommended to add some catalysts obtained through three-spin recovery, as the catalysts used in that process are mostly of this size!
It is necessary to analyze specifically the catalyst itself, the cyclone separator and the main air distributor, as well as the operating parameters