Fluidized bed reactor, device and application
A fluidized bed reactor and reaction zone technology, applied in chemical instruments and methods, organic chemistry, chemical recycling, etc., to achieve the effects of improving the selectivity, activity and high selectivity of low-carbon olefins
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Embodiment 1
[0149] This implementation uses figure 1 and figure 2 In the shown device, the coke control area in the fluidized bed reactor contains 2 baffles, that is, n=2, the coke control area includes 2 coke control area sub-areas, and the first gas-solid separation equipment adopts a gas-solid cyclone separator .
[0150] Specifically, such as figure 1 As shown, the diameter at the junction of the lower shell and the upper shell gradually increases from bottom to top, so that the diameter of the gas-solid separation zone is larger than the diameter of the reaction zone. The focus control area is located at the junction of the lower shell and the upper shell. The longitudinal section of the baffle is a parallelogram.
[0151] 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 regeneration gas is air; the active component in the catalyst is SAPO-34 Molecul...
Embodiment 2
[0157] This implementation uses figure 1 and figure 2 In the shown device, the coke control area in the fluidized bed reactor contains 10 baffles, that is, n=10, the coke control area includes 10 coke control area sub-areas, and the first gas-solid separation equipment adopts a gas-solid cyclone separator .
[0158] 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% A mixture of dimethyl ether; the regeneration gas is 50wt% air and 50wt% water vapor; the active component in the catalyst is SAPO-34 molecular sieve; the coke content in the regenerated catalyst is about 3wt%; the coke content in the coke control catalyst is about 9wt%, of which, the content of polymethylbenzene and polymethylnaphthalene in the total mass of coke is about 78wt%, and the content of coke species with molecular weight >184 in the to...
Embodiment 3
[0164] This implementation uses figure 1 and figure 2 In the shown device, the coke control area in the fluidized bed reactor contains 4 baffles, that is, n=4, the coke control area includes 4 coke control area sub-areas, and the first gas-solid separation equipment adopts a gas-solid rapid separator .
[0165] 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 and 9wt% water; the oxygenate is dimethyl ether; the regeneration gas is 50wt% air and 50wt% oxygen; the active component in the catalyst is SAPO-34 molecular sieve; the coke content in the regenerated catalyst is about 2wt%; coke The coke content in the control catalyst is about 6wt%, wherein, the mass content of polymethylbenzene and polymethylnaphthalene in the total mass of coke is about 81wt%, and the mass of coke species with molecular weight > 184 is in the total mass of coke. The co...
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Abstract
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