Alkene conversion apparatus start-working catalyst adding method
A conversion device and catalyst technology, applied in organic chemistry, chemical recovery, ethylene production, etc., can solve the problems of small regenerators, long charging time, and difficulty in establishing beds
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[0076] When starting up, the nitrogen gas 9 is overheated to 450°C by the start-up heating furnace 1 and then enters the reactor 3 to heat the reactor 3 to 540°C; at the same time, the hot air 10 with a temperature of 150°C coming from the regenerator 4 through the auxiliary combustion chamber 2 is heated up in advance to 540°C. The regenerator 4 is added first, and the dosing is added quickly at the beginning of the dosing to prevent the material leg from the regeneration cyclone separator 6 from being lost. The temperature of the catalyst added to the regenerator 4 is increased by adjusting the amount and temperature of the hot air 10 entering the regenerator 4. Requirements: During the heat storage stage of the regenerator 4, the reactor 3 starts to add dosing, and the dosing is rapid at the beginning stage, while ensuring that the temperature of the reactor does not drop sharply; After the legs, slow down the dosing speed and maintain the temperature of reactor 3. At the s...
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