Fluidized bed reactor, fluidized bed reactor device and method for preparing low-carbon olefin from oxygen-containing compound
A fluidized bed reactor and reactor shell technology, applied in the direction of hydrocarbon production from oxygen-containing organic compounds, chemical instruments and methods, chemical/physical processes, etc., to achieve narrow distribution of coke content, increase selectivity, and high coke content Effect
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Embodiment 1
[0190] This implementation uses figure 1 with figure 2In the shown device, the coke control area in the fluidized bed reactor contains 2 baffles, that is, n=2, the coke control area contains 2 coke control area sub-areas, and the second gas-solid separation equipment adopts multiple groups of gas-solid cyclones Separator, each set of gas-solid cyclone separators includes a first-stage gas-solid cyclone separator and a second-stage gas-solid cyclone separator.
[0191] 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 catalyst is about 1wt%; The content in mass is about 83wt%, and the mass content of coke species with molecular weight>184 in the total mass of coke is about 9wt%; ...
Embodiment 2
[0194] This implementation uses figure 1 with 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 contains 10 coke control area sub-areas, and the second gas-solid separation equipment adopts multiple groups of gas-solid cyclones Separator, each set of gas-solid cyclone separators includes a first-stage gas-solid cyclone separator and a second-stage gas-solid cyclone separator.
[0195] 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 fluidization gas in the waiting agent area is water vapor; 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 catalyst is about 3wt% ; The coke content in the coke ...
Embodiment 3
[0198] This implementation uses figure 1 with 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 second gas-solid separation equipment is a section of pipeline, and its inlet Located in the gas-solid separation zone, its outlet is connected to the gas collection chamber of the fluidized bed reactor.
[0199] 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 oxygen-containing compound is dimethyl ether; the fluidizing gas in the area of the raw agent is 5wt% nitrogen and 95wt% water vapor; 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 catalyst is about 2wt%; the coke content in the coke control catalys...
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Abstract
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