Regeneration method of molecular sieve catalyst
A catalyst and molecular sieve technology, applied in the field of molecular sieve catalyst regeneration, can solve problems such as damage to the internal structure of the catalyst, and achieve the effects of protecting from damage, alleviating strong heat release, and reducing flying temperature.
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Embodiment 1
[0052] Take 10ml of Cat.1, fill it into the fixed bed regeneration device, feed the mixed gas of nitrogen and oxygen into the fixed bed regeneration reaction tube, the volume content of oxygen is 3%, and the total gas velocity is 3.0h -1 , the tail gas is connected to the vacuum pump, turn on the vacuum pump, keep the vacuum at 0.02MPa, raise the temperature to 550°C at 0.5°C / min, and roast for 4h.
Embodiment 2
[0054] Take 10ml of Cat.1, fill it into the fixed bed regeneration device, feed the mixed gas of argon and oxygen into the fixed bed regeneration reaction tube, the volume content of oxygen is 3%, and the total gas velocity is 5.0h -1 , the tail gas is connected to the vacuum pump, the vacuum pump is turned on, the vacuum degree is kept at 0.01MPa, the temperature is raised to 600°C at 0.5°C / min, and roasted for 4h.
Embodiment 3
[0056] Take 10ml of Cat.1, fill it into the fixed bed regeneration device, feed the mixed gas of nitrogen and air into the fixed bed regeneration reaction tube, the volume content of oxygen is 3%, and the total gas velocity is 3.0h -1 , the tail gas is connected to the vacuum pump, turn on the vacuum pump, keep the vacuum at 0.03MPa, raise the temperature to 600°C at 1°C / min, and roast for 4h.
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