Regenerating method of catalytic conversion catalyst
A catalytic conversion and catalyst technology, applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of poor performance of catalyst flow rate modulation, high frequency of catalyst regeneration, etc. problem, achieve the effect of reducing the frequency of charcoal regeneration and avoiding the loss of surface area
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[0027] Example 1
[0028] The catalyst f removed from the reactor 1 first enters the first regenerator 2 and is purged and regenerated by the first regeneration gas i at 170°C. The residence time τ of the catalyst in the first regenerator 2 2 Is the residence time τ of the catalyst in reactor 1 1 10 times. The primary regenerator a at the outlet of the first regenerator 2 is delivered to the catalyst flow distributor 4 and then divided into two streams b and c, respectively, enter the second regenerator 3 and the reactor 1, and enter the primary regenerator flow of the reactor 1. The flow rate of stream c accounts for 1% of the total flow rate of the primary regenerant in stream a. The primary regenerant in stream b enters the second regenerator 3 through the second regeneration gas k to obtain the secondary regeneration. The regenerant d and the primary regenerant stream c enter the reactor 1 together after being combined.
[0029] The form of the reactor 1, the first regenerator...
Example Embodiment
[0035] Example 2
[0036] The catalyst f removed from the reactor 1 first enters the first regenerator 2 and is purged and regenerated by the first regeneration gas i at 650°C. The residence time τ of the catalyst in the first regenerator 2 2 Is the residence time τ of the catalyst in reactor 1 1 5 times. The primary regenerator a at the outlet of the first regenerator 2 is delivered to the catalyst flow distributor 4 and then divided into two streams b and c, respectively, enter the second regenerator 3 and the reactor 1, and enter the primary regenerator flow of the reactor 1. The flow rate of stream c accounts for 60% of the total flow rate of the primary regenerant in stream a. The primary regenerant in stream b enters the second regenerator 3 through the second regeneration gas k for secondary regeneration. The regenerant d and the primary regenerant stream c enter the reactor 1 together after being combined.
[0037] The form of the reactor 1, the first regenerator 2 and the...
Example Embodiment
[0043] Example 3
[0044] The catalyst f removed from the reactor 1 first enters the first regenerator 2 and is purged and regenerated by the first regeneration gas i at 300°C. The residence time τ of the catalyst in the first regenerator 2 2 Is the residence time τ of the catalyst in reactor 1 1 0.1 times. The primary regenerator a at the outlet of the first regenerator 2 is delivered to the catalyst flow distributor 4 and then divided into two streams b and c, respectively, enter the second regenerator 3 and the reactor 1, and enter the primary regenerator flow of the reactor 1. The flow rate of stream c accounts for 100% of the total flow rate of the primary regenerant in stream a. The primary regenerant in stream b enters the second regenerator 3 through the second regeneration gas k for secondary regeneration. The regenerant d and the primary regenerant stream c enter the reactor 1 together after being combined.
[0045] The form of the reactor 1, the first regenerator 2 and ...
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