Self-pressurized rotation filling bed apparatus with whole structured filler, and applications thereof
A technology of rotating packed bed and structured packing, which is applied to chemical instruments and methods, separation methods, and separation of dispersed particles. It can solve the problems of large gas pressure drop, easy fracture, and low mass transfer performance. The effect of small floor area and large operating flexibility
Inactive Publication Date: 2015-04-15
BEIJING UNIV OF CHEM TECH
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Problems solved by technology
[0007] However, the existing rotating packed bed device used for desulfurization of ship tail gas has the following defects: 1) The gas flow direction is opposite to the centrifugal direction of the rotor, and the pressure drop of the
Method used
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Embodiment 1
[0051] A method for deep removal of harmful gases in ship exhaust by using the above-mentioned self-pressurized rotating packed bed device with integral structured packing, the conditions are as follows:
[0052] Sulfur dioxide content in imported gas φ i 2590mg / m 3 , the absorption liquid is ammonium sulfite-ammonium bisulfite mixed solution. The system temperature T in the absorption process was 50°C. SiC filler is used in the rotating packed bed, the rotational speed N of the rotating packed bed is 500r / min, and the gas-liquid flow ratio η is 800. The content of sulfur dioxide in the outlet gas of the rotating packed bed φ o 80mg / m 3 , The inlet and outlet pressure drop Δp is -600Pa.
Embodiment 2-15
[0054] The process flow and steps are the same as in Example 1, and the process conditions and operating conditions of each embodiment and the corresponding experimental results are shown in Table 1.
[0055]
[0056]
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The present invention discloses a self-pressurized rotation filling bed apparatus with a whole structured filler, and applications thereof. The rotation filling bed apparatus comprises a power device and a hypergravity rotation bed, wherein the hypergravity rotation bed comprises a housing, an upper cover and a rotor, an anti-corrosion structured filler is arranged in the rotor, and the flow direction of gas in the rotation filling bed and the rotor centrifugal force direction are the same. According to the present invention, with the application of the same direction of the gas-liquid flow and the rotor centrifugal force, the rotor does work on the gas phase while the outer edge of the rotor is provided with the blade for conveying the gas, such that the self-pressurization during the deep removing process of sulfur dioxide in tail gas is achieved, and the additional addition of the pressurization fan during the desulfurization process is avoided so as to overcome the pressure reducing problem of the desulfurization apparatus; the rotation filling bed desulfurization apparatus and the process have characteristics of low cost, high operating flexibility, small occupation area and the like, and are especially for deep removal of the sulfur dioxide in the existing ship tail gas; and compared with the tower type desulfurization apparatus and the process, the desulfurization apparatus and the process of the present invention have the following advantage that: the energy can be saved by 10-15%.
Description
technical field [0001] The invention relates to a rotary packed bed device for removing harmful gases in tail gas and its application, in particular to a self-pressurized rotary packed bed device with integral structured packing and a method for deeply removing harmful gases in ship tail gas Law. It belongs to the technical field of hypergravity. Background technique [0002] In the process of continuous development of world economy and trade, due to the advantages of safety, low price and large volume of shipping, the volume of shipping is increasing day by day, and the tonnage is increasing rapidly. Moreover, most of the existing main engines of ships use heavy fuel oil as fuel, especially ocean-going ships mostly use low-quality residual oil as fuel. The average sulfur content of fuel oil is as high as 2.7%. Gases, such as sulfur dioxide, carbon dioxide, etc., if these harmful gases are discharged directly without treatment, they will pollute the atmosphere and cause ma...
Claims
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Login to view more IPC IPC(8): B01D53/78B01D53/50
Inventor 陈建峰初广文赵宏罗勇邹海魁
Owner BEIJING UNIV OF CHEM TECH
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