Coke regulation and control reactor and device and method for preparing low-carbon olefin from oxygen-containing compound
A reactor and compound technology, which is used in the production of hydrocarbons from oxygen-containing organic compounds, the preparation of liquid hydrocarbon mixtures, chemical instruments and methods, etc., to achieve the effects of high coke content, narrow coke content distribution, and improved selectivity
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Embodiment 1
[0211] This implementation uses figure 1 In the shown device, the cross-section of the reaction zone I of the coke control reactor 1 is a rectangle, and the cross-section of the reaction zone I sub-section is a rectangle, n=1, m=2, and the 1-2 reaction zone I sub-section starts from Arranged in order from left to right.
[0212] In this embodiment, the raw material for coke regulation is a mixture of 6wt% butane, 81wt% butene, 2wt% methanol and 11wt% water; the oxygen-containing compound is methanol; the fluidizing gas in the waiting agent area is nitrogen; the regeneration gas is air; The active component in the catalyst is SAPO-34 molecular sieve; the coke content in the regenerated catalyst is about 1wt%; The content in the total mass is about 86wt%, and the content of coke species with a molecular weight > 184 in the total coke mass is about 11wt%; the interquartile difference of the coke content distribution in the coke-regulating catalyst is about 0.9wt%; The coke cont...
Embodiment 2
[0215] This implementation uses figure 1 In the shown device, the cross-section of the reaction zone I of the coke control reactor 1 is a rectangle, and the cross-section of the reaction zone I sub-section is a rectangle, n=9, m=10, and the 1st-10th reaction zone I sub-section is from Arranged in order from left to right.
[0216] In this embodiment, the raw material for coke regulation is a mixture of 22wt% methane, 24wt% ethane, 3wt% ethylene, 28wt% propane, 4wt% propylene, 7wt% hydrogen and 12wt% water; oxygenates are 82wt% methanol and 18wt% The mixture of dimethyl ether; the fluidization gas in the waiting area of the raw agent is water vapor; the regeneration gas is air; the active component in the catalyst is SAPO-34 molecular sieve; the coke content in the regenerated catalyst is about 3wt%; The coke content is about 9wt%, of which, the content of polymethylbenzene and polymethylnaphthalene in the total coke mass is about 70wt%, and the content of coke species with ...
Embodiment 3
[0219] This implementation uses figure 1 The device shown, but the structure of the coke control reactor 1 is as follows figure 2 As shown, the cross section of the reaction zone I of the coke control reactor of this embodiment is circular, the cross section of the reaction zone I sub-section is fan-shaped, n=4, m=4, the 1st-4th reaction zone I sub-section Arranged concentrically and counterclockwise, the baffles 1-3 shared by the first reaction zone I sub-section and the fourth reaction zone I sub-section of the coke control reactor do not contain catalyst flow holes.
[0220] In this embodiment, the coke control raw material is 1wt% propane, 1wt% propylene, 3wt% butane, 51wt% butene, 3wt% pentane, 22wt% pentene, 1wt% hexane, 7wt% hexene, 2wt% methanol Mixture with 9wt% water; Oxygenate is dimethyl ether; The fluidization gas in the waiting area is nitrogen; The regeneration gas is 50wt% air and 50wt% oxygen; The active component in the catalyst is SAPO-34 molecular sieve; ...
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