A dust removal device and dust removal method for dusty oil and gas
A dust removal device, oil and gas technology, applied in separation methods, combined devices, chemical instruments and methods, etc., can solve the problems of low dust collection efficiency, increased pressure drop inside and outside the membrane tube, and cyclone dust collector pressure drop, etc. Achieve the effect of reducing oil and gas dust content and tar yield
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[0052] see figure 1 and figure 2 In the following, the technical scheme of the present invention will be further described in detail by taking the medium-low temperature pyrolysis of low-rank coal as an example. A kind of dedusting method of dusty oil gas of the present invention specifically comprises the following steps:
[0053] (1) Low-rank coal is pyrolyzed through the pyrolysis furnace at medium and low temperature to produce pyrolysis oil and gas with high temperature and high dust content at 500-800°C, which enters the third-stage catalytic sieve cyclone separation through the air inlet of the first-stage catalytic sieve cyclone separator The device is used for large particle filtration and preliminary catalysis stage to capture fly ash and dust particles above 5 μm, and at the same time, the macromolecular gas products are converted to small molecular gas products under catalytic conditions, reducing the tar yield and increasing the synthesis gas yield, and obtainin...
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