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Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus

A technology of desulfurization device and treatment device, which is applied in chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve the problems of large-scale concentration equipment and increased cost of sulfuric acid manufacturing equipment.

Inactive Publication Date: 2007-11-28
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In addition, even if gypsum is not produced, when dilute sulfuric acid is produced, if the concentration is too low, there is a problem of enlarging the concentration equipment and increasing the cost of sulfuric acid production equipment.

Method used

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  • Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus
  • Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus
  • Flue gas desulfurization apparatus, flue gas desulfurization system, and method for operating flue gas desulfurization apparatus

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Embodiment Construction

[0083] In order to explain the present invention in more detail, the description will be made based on the drawings.

[0084] An exhaust gas treatment system having the flue gas desulfurization device of Example 1 will be described based on FIG. 1.

[0085] As shown in Fig. 1, for example, in order to drive a steam turbine of a thermal power plant not shown, in a boiler 1 that generates steam, fuel f such as coal and heavy oil is burned. The exhaust gas of boiler 1 contains sulfur oxides (SO X ), the exhaust gas is denitrified by a denitrification device not shown, and after the exhaust gas heater is cooled, the dust is removed in the dust collector 2.

[0086] The dust-removed exhaust gas is sent to the humidifying and cooling device 16 through the blower 3, and moisture (containing dilute sulfuric acid) is mixed into the humidifying and cooling device 16 to become exhaust gas in a saturated vapor state. At this time, smoke may be contained in the exhaust gas. The exhaust gas in ...

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Abstract

The invention provides a flue gas desulfurization apparatus includes at least one activated carbon fiber board 20 provided in a catalyst unit 6, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber board 20 provided in the catalyst unit 6. The flue gas desulfurization apparatus attains removal of sulfur oxides (SOx) by adding a minimum required amount of water to the activated carbon fiber board 20 so as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SOx).

Description

[0001] This application is a divisional application. The application number of the parent application: 02807664.8, the filing date: 2002.10.16, the title of the invention: flue gas desulfurization device, flue gas desulfurization system and operation method of flue gas desulfurization device. Technical field [0002] The present invention relates to the removal of sulfur oxides (SO) in exhaust gas discharged from boilers, gas turbines, engines and incinerators that burn coal and heavy oil and other fuels. X ) The flue gas desulfurization device, the flue gas desulfurization system and the operation method of the flue gas desulfurization device. [0003] Moreover, the present invention relates to the removal of sulfur oxides (SO X ) The desulfurization method. Background technique [0004] Disulfide is contained in exhaust gas from thermal power generation equipment, chemical product manufacturing plants, metal processing plants, sintering plants, paper mills, etc., with boilers th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/50
Inventor 小林敬古安武昭典栗崎隆龙原洁
Owner MITSUBISHI HEAVY IND LTD
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