Flue gas desulfurization and dust removal technology and integrated apparatus applicable to ship

A technology for desulfurization, dust removal, and flue gas, which is applied in the direction of combined devices, gas treatment, chemical instruments and methods, etc. It can solve the problems of difficult operation of equipment, poor dust removal effect, high investment cost, etc., and achieves a wide range of gas treatment volume and simple structure , the effect of high dust removal rate

Active Publication Date: 2015-04-08
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to provide an integrated method for flue gas desulfurization and dust removal of marine gas turbines and the equipment for implementing the method, so as to solve the problems of high investment cost, large floor area, difficult operation of the equipment and poor dust removal effect existing in the prior art The problem

Method used

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  • Flue gas desulfurization and dust removal technology and integrated apparatus applicable to ship
  • Flue gas desulfurization and dust removal technology and integrated apparatus applicable to ship
  • Flue gas desulfurization and dust removal technology and integrated apparatus applicable to ship

Examples

Experimental program
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Effect test

Embodiment 1

[0064] SO in flue gas 2 The concentration is 2000 ppm, the inlet flue gas temperature is 140°C; the liquid-gas ratio of the seawater method is 6 L / m 3 , the desulfurization rate is 99.3%, and the dust removal rate is 99.8%. The liquid-gas ratio of the lye method is 2 L / m 3 , the desulfurization rate is 99.5%, and the dust removal rate is 99.6%.

Embodiment 2

[0066] SO in flue gas 2The concentration is 1500 ppm, the inlet flue gas temperature is 80°C; the liquid-gas ratio of the seawater method is 3 L / m 3 , the desulfurization rate is 99.1%, and the dust removal rate is 99.5%. The liquid-gas ratio of the lye method is 1 L / m 3 , the desulfurization rate is 99.2%, and the dust removal rate is 99.4%.

Embodiment 3

[0068] SO in flue gas 2 The concentration is 800 ppm, the inlet flue gas temperature is 50°C; the liquid-gas ratio of the seawater method is 2 L / m 3 , the desulfurization rate is 98.9%, and the dust removal rate is 99.2%. The liquid-gas ratio of lye method is 0.5 L / m 3 , the desulfurization rate is 98.8%, and the dust removal rate is 99.1%.

[0069] Compared with other flue gas scrubbing devices, such as the packed tower, two-stage series spray tower, foam tower and bubble tower adopted by PureSOx, BELCO, Hamworthy and Ecosilencer respectively, the first three devices adopt hybrid system, and the last one adopts open The ring is the seawater desulfurization system. Their desulfurization rates are 99%, >97%, 99%, and 90%. Although good results have been achieved, the size of these tower equipment is about Φ5 m×10 m. The volume occupies a large amount of ship space, and the investment cost and operating cost are relatively high. The application number published in 2006 is 200...

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Abstract

The invention belongs to the technology of flue gas desulfurization and dust removal, and in particular relates to a flue gas desulfurization and dust removal technology and an integrated device applicable to ships, and solves the problems in the flue gas desulphurization technology and equipment for ships of the prior art. The flue gas desulfurization and dust removal apparatus includes a multi-stage cross flow rotating packed bed, a barren liquor tank, a barren liquor circulating pump and an aeration tank. The flue gas desulfurization process includes an open seawater method flue gas desulphurization technology and a enclosed alkali method flue gas desulfurization technology. Two technologies can be combined with the rotating packed bed, and the invention has the advantages of high desulfurization efficiency, low energy consumption, simple process, low investment and operation cost, stable operation, convenient startup and shutdown, and integrated desulphurization and dust removal.

Description

technical field [0001] The invention belongs to the technical field of flue gas desulfurization and dust removal, and in particular relates to a flue gas desulfurization and dust removal process and an integrated device suitable for ships. Background technique [0002] Ship power plant (large diesel engine) uses heavy oil with extremely high sulfur content, resulting in a large amount of SO in its exhaust x , causing serious air pollution. In order to control the pollution caused by marine diesel engine emissions, the International Maritime Organization (IMO) has revised the MARPOL73 / 78 Convention Annex VI "Regulations on the Prevention of Air Pollution from Ships", and the regulations on the content of marine fuel oil are more stringent: for sulfur oxides Emission control areas shall not exceed 0.1% from January 1, 2015; for non-control areas, starting from January 1, 2012, the sulfur content of global marine heavy fuel oil will be reduced from 4.5% in Annex VI to 3.5%. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/18B01D53/14B01D53/78B01D53/50
CPCB01D53/18B01D53/504B01D2259/4566
Inventor 刘有智袁志国祁贵生栗秀萍张巧玲申红艳罗莹高璟焦纬洲宋卫
Owner ZHONGBEI UNIV
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