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The regenerating agent is leaking; please help analyze it!

2018-11-27View Original

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140W ton DCC: When the regenerator is filled with about 200 tons of material, there is severe leakage. (The pressure in the settler is slightly higher than that in the regenerator, around 0.1 MPa; the main air flow rate is 100,000 standard cubic meters per hour. In reality, 230 tons of material need to be used, and the pressure difference across the main air distribution system is 0.9.) It is necessary to make repeated adjustments each time, and it takes some time for the leakage to stop. I would appreciate it if experienced professionals could help analyze this situation, or share their methods for filling the regenerator during operation: handshake
Reply #22018-11-27
During loading, do it quickly and seal the material leg as soon as possible to prevent leakage of the material.
Reply #32018-11-27
Take a look at this: Severe leakage when 600,000 tons of catalytic cracking units are put into operation. https://bbs.hcbbs.com/thread-108148-1-1.html (Source: Haichuan Chemical Industry Forum)
Reply #42018-11-28
Check the main air volume, regeneration pressure, dense-phase density, and leg density to see if the bed density is too high, which is causing abnormal operation of the flap valves
Reply #52018-12-03
It ran away during loading; after adjustments it improved a bit, but the loss during feeding was even worse. After trying to feed material 5 times, I gave up. When the amount of material in the regenerator was reduced to 50 tons, its capacity suddenly rose to around 100 tons, and feeding resumed normally. Is it a problem with the dead zone in the regenerator or with the operation of the flap valves?

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