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Integrated coking furnace desulfurization and denitrification system

A technology for desulfurization, denitrification, and coking furnaces, which is applied in gas treatment, chemical instruments and methods, and dispersed particle separation. Fast, high degree of automation, small equipment changes

Inactive Publication Date: 2017-06-23
黄胜建
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is: (1) denitrification efficiency is low, and denitrification efficiency is 30%-50%, can not meet existing environmental protection requirement; Efficiency has an impact
At present, flue gas desulfurization and denitrification are carried out in two modes, so the investment and operation costs are high, which is not suitable for China's national conditions

Method used

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  • Integrated coking furnace desulfurization and denitrification system

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention will be further described as follows:

[0024] as attached figure 1 As shown, the present invention is used for desulfurization and denitrification treatment of flue gas produced by coke ovens. The system includes: ozone generator 1, ozone metering system 2, ozone filling system 3, hydrogen peroxide storage tank 4, hydrogen peroxide metering system 5 and hydrogen peroxide adding Injection system, the gas outlet of the ozone generator 1 is connected to the ozone metering system 2 through the pipeline, and the ozone metering system 2 is connected to the flue in front of the desulfurization tower 7 through the ozone filling system 3, between the desulfurization spray layer of the desulfurization tower 7 and the defogging plate A hydrogen peroxide filling system is provided in the room, and the hydrogen peroxide filling system is connected to the hydrogen peroxide metering system 5 through pipelines, and ...

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Abstract

The invention relates to an integrated coking furnace desulfurization and denitrification system, which comprises an ozone generator (1), an ozone metering system (2), an ozone filling system (3), a hydrogen peroxide storage tank (4), a hydrogen peroxide metering system (5) and a hydrogen peroxide filling system, wherein a gas outlet of the ozone generator (1) is connected with the ozone metering system (2) through a pipeline, the ozone metering system (2) is connected into a flue before a desulfurization tower (7) through the ozone filling system (3), the hydrogen peroxide filling system is arranged between a desulfurization spraying layer and a defogging plate of the desulfurization tower (7), the hydrogen peroxide filling system is connected with the hydrogen peroxide metering system (5) through a pipeline, and the hydrogen peroxide metering system (5) is connected with the hydrogen peroxide storage tank (4) through a hydrogen peroxide pump (6). Compared with the prior art, the system has the advantages of high denitrification efficiency, smaller equipment size, slight modification on original equipment, no ammonia water, no ammonia escape, adaptability to violent changes of flue gas flow and high automation degree.

Description

[0001] [technical field] [0002] The invention relates to the technical field of flue gas denitrification, in particular to an integrated system for desulfurization and denitrification of a coking furnace. [0003] [Background technique] [0004] The denitrification technology is relatively mature in my country. The denitrification technologies for flue gas are mainly: Selective Catalytic Reduction (SCR) and Selective Non-Catalytic Reduction (SNCR). Among them, the advantages of the selective catalytic reduction method are: (1) high denitrification efficiency; (2) moderate working temperature at 350°C-420°C; (3) denitrification products are nitrogen and water without secondary pollution. Its disadvantages are: (1) High investment and operating costs; (2) It has an impact on the thermal efficiency of the boiler and furnace. After the SCR reactor is installed, the heat dissipation loss of the boiler and furnace will increase, and the local heating area may need to be changed. (...

Claims

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Application Information

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IPC IPC(8): B01D53/76B01D53/79B01D53/60
CPCB01D53/60B01D53/76B01D53/79B01D2258/0283
Inventor 黄胜建
Owner 黄胜建
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