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A dust-proof and denitrification reactor for fcc regenerative flue gas

A technology for denitrification reactors and flue gas regeneration, applied in chemical instruments and methods, separation of dispersed particles, separation methods, etc., can solve problems such as ammonia escape, uneven distribution of flue gas, and influence on denitrification efficiency, so as to reduce boiler height, The effect of consistent size and saving construction investment

Active Publication Date: 2015-08-12
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
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Problems solved by technology

[0009] Aiming at the deficiencies of the prior art, the present invention provides a flue gas denitrification reactor, which aims to solve the problem of uneven distribution of flue gas inside the reactor in the prior art, which affects the denitrification efficiency and produces ammonia escape.

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  • A dust-proof and denitrification reactor for fcc regenerative flue gas
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  • A dust-proof and denitrification reactor for fcc regenerative flue gas

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Embodiment Construction

[0025]The specific scheme and usage mode of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the present invention provides a FCC regenerated flue gas dust-proof denitrification reactor, the reactor includes a mixed flue gas intake section 1, a denitrification section 3 and a purified flue gas exhaust section 4, wherein the denitrification section 3 A denitration unit 6 is provided, and the denitration unit 6 is provided with a suspension beam 9, a soot blower 10, a catalyst module 11 and a catalyst support beam 12 in sequence from top to bottom. 3, the ash removal section 2 is set, the ash baffle 5 is set in the ash removal section 2, the ash bin 7 is set in the denitrification section 3, the center line of the ash bin coincides with the center line of the reactor, and the lower end of the ash bin 7 is connected to the row Ash Pipe 8. The gray baffle 5 is a multi-layer staggered inclined...

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Abstract

The invention relates to a FCC regenerated flue gas dustproof denitration reactor. The FCC regenerated flue gas dustproof denitration reactor comprises a mixed flue gas inlet segment, a denitration segment, and a purified flue gas exhaust segment; the denitration segment is provided with a denitration unit; a dedusting segment is arranged between the mixed flue gas inlet segment and the denitration segment; dust blocking plates are arranged in the dedusting segment; a dust collector is arranged in the denitration segment; the center line of the dust collector and the center line of the FCC regenerated flue gas dustproof denitration reactor are overlapped; and the lower end of the dust collector is connected with a dust discharging pipeline. According to the FCC regenerated flue gas dustproof denitration reactor, the dust blocking plates are arranged in the FCC regenerated flue gas dustproof denitration reactor, so that flue dust in the mixed flue gas is removed effectively before the mixed flue gas is delivered into the denitration unit, blocking of catalyst channels in the denitration unit by flue dust is avoided, denitration efficiency and denitration effects are improved; and the FCC regenerated flue gas dustproof denitration reactor is provided with drainage grilles and rectifier grilles, so that laminar flow states of the flue gas in the FCC regenerated flue gas dustproof denitration reactor are maintained, and denitration efficiency is increased further.

Description

technical field [0001] The invention relates to a treatment device for the FCC regeneration flue gas of a refinery, in particular to a selective catalytic reduction SCR denitrification process device for the FCC regeneration flue gas of a refinery. Background technique [0002] The world's annual NO emissions into the atmosphere x The total amount is about 50 million tons. In 2008, my country's NO x The emissions have reached 20 million tons, making China the world's largest emitter. If no measures are taken to control, it is estimated that by 2020, NO x Emissions will reach 30 million tons, and my country's efforts to reduce sulfur dioxide by 10% during the "Eleventh Five-Year Plan" period will also be due to NO x This is all offset by a significant rise in emissions. At present, my country has NO x As a binding indicator, it will be included in the scope of total control during the "Twelfth Five-Year Plan" period. NO emitted into the atmosphere x There are three mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/90B01D53/79B01D53/56B01D45/08
Inventor 齐慧敏彭德强姜阳李欣王岩刘杰王明星
Owner CHINA PETROLEUM & CHEM CORP
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