How to reduce catalyst fines to ensure the long-term operation of flue gas treatment equipment?

The smoke extractor is an important energy recovery device for catalytic units, and its proper operation is directly related to the processing costs of these units. Flue gas quality is the key factor determining whether the flue gas treatment unit can operate properly over a long period of time! An excessive level of catalyst fine powder in the flue gas can cause wear on the blades of the smoke extraction fan, increase vibration in the unit, reduce energy recovery, and may even lead to an emergency shutdown due to an accident! How to reduce catalyst fines in flue gas? Action should be taken from the following aspects: 1. First, determine whether it is caused by the breakdown of the system catalyst ； 2. Then determine whether the cyclone separator is operating within the optimal linear speed range ； If it is the first reason: Is the catalyst damp? Is the feed nozzle operating at supersonic speeds? Is the steam input to the regenerator too high? Does the catalyst’s mechanical resistance meet the standards? If it is the second reason: the regenerator pressure can be appropriately increased (refer to the design outlet pressure of the main fan) ； Reduce or increase the main air volume ； Increase storage or decrease storage ； When adding fresh catalyst, reduce the feeding rate ； Wait, anyway, it depends on the situation!

1. Catalysts with low phosphorus content (alkene reduction catalysts have higher phosphorus content). 2. Linear velocity of the gas flow through the distribution pipes in the regenerator. 3. Quality of the steam used in the flue gas extractor and the temperature at the inlet of this extractor. 4. Efficiency of the three-stage centrifugation process. 5. Ensure stable operation and maintain proper pressure balance

To operate the flue gas treatment unit properly, it is most important to ensure the stable operation of the regeneration system; in particular, it is necessary to control the amount of loss of the regeneration catalyst. Second, it is essential to keep the four rotating legs unobstructed so as to ensure proper functioning of the three rotors. Third, the temperature during regeneration must be controlled to prevent overheating in the flue gas system. Proper maintenance of the flue gas treatment unit is also crucial.

The key is to choose the right centrifugal separator; if it doesn’t work, there’s no way to adjust the operation. Operationally, it is necessary to reduce the number of fine particulate smoke generators; by controlling the regeneration pressure and reaction conditions to minimize the amount of smoke generated, the pressure and linear velocity in the regenerator can be kept from being too high. This makes the operation of the centrifuge easier and improves the efficiency of gas-solid separation of the catalyst. . . :lol