Tail gas desulfurization and denitrification system and tail gas desulfurization and denitrification treatment process

A technology for desulfurization, denitrification, and exhaust gas, which is applied in the directions of gas treatment, exhaust equipment, and air quality improvement. It can solve the problems of increased volume of the exhaust gas treatment system, increased ship operating costs, and difficulty in ship space layout, reducing input costs and maintenance. Cost, saving layout space, high removal rate effect

Pending Publication Date: 2021-06-08
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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Problems solved by technology

Therefore, the technical route of joint desulfurization and denitrification of marine diesel engines by using a selective catalytic reduction system and an exhaust gas scrubbing system not only has the problems of

Method used

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  • Tail gas desulfurization and denitrification system and tail gas desulfurization and denitrification treatment process
  • Tail gas desulfurization and denitrification system and tail gas desulfurization and denitrification treatment process
  • Tail gas desulfurization and denitrification system and tail gas desulfurization and denitrification treatment process

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[0054] DESCRIPTION OF THE DRAWINGS The following detailed description will be described in detail with reference to the drawings.

[0055] See figure 1 . The present invention provides a tail gas desulfurized denitration system for processing the exhaust gas of the ship diesel engine 600. In the embodiment of the present invention, the tail gas desulfurizing denitration system includes a supply unit 100, a reaction liquid circulation unit 200, a reactor 300, and a control unit 400, and a waste liquid processing unit 500.

[0056] Such as figure 1 As shown, the supply unit 100 is fluidly connected to the reaction liquid circulation unit 200, the reaction liquid circulation unit 200, fluidly connected to the reactor 300, and the waste liquid processing unit 500 and the reaction liquid circulation unit 200 Fluid connection, the control unit 400 is connected to the supply unit 100, the reaction liquid circulation unit 200, the reactor 300, and the waste liquid processing unit 500 sign...

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Abstract

The invention discloses a tail gas desulfurization and denitrification system and a tail gas desulfurization and denitrification treatment process. The tail gas desulfurization and denitrification system is used for treating tail gas of a marine diesel engine, and the tail gas desulfurization and denitrification system comprises a supply unit, a reaction liquid circulation unit, a reactor and a control unit. The supply unit is in fluid connection with the reaction liquid circulation unit and is used for providing medicaments for the reaction liquid circulation unit; the reaction liquid circulation unit is in fluid connection with the reactor and is used for accommodating reaction liquid, providing the reaction liquid to the reactor and receiving reaction recovery liquid discharged from the reactor; the reactor is used for enabling the reaction liquid and the tail gas to be in full contact reaction so as to remove NOx and SO2 in the tail gas and discharge gas and reaction recovery liquid; and the control unit is respectively in signal connection with the reactor, the reaction liquid circulation unit and the supply unit so as to control the supply of the medicament according to the detection value of the reaction liquid contained in the reaction liquid circulation unit and the detection value of the discharged gas discharged by the reactor.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment of marine diesel engines, in particular to a tail gas desulfurization and denitrification system and a treatment process for tail gas desulfurization and denitrification. Background technique [0002] When the marine diesel engine is running, it will emit nitrogen oxides and sulfur oxides, which will cause serious pollution to the global environment. The International Maritime Organization and many countries and regions have targeted the NOx of ships X and SO 2 Strict restrictions were imposed. [0003] Currently for marine diesel engine NO X and SO 2 The main way to reduce emissions is to install a selective catalytic reduction system (SCR) and an exhaust gas cleaning system (EGC) respectively behind the exhaust pipe of the diesel engine. When the selective catalytic reduction system is used for denitrification, the SO in the flue gas 2 It is easy to produce sulfate attached to th...

Claims

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Application Information

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IPC IPC(8): B01D53/92B01D53/60F01N3/08
CPCB01D53/92B01D53/60F01N3/08B01D2251/108B01D2251/10B01D2258/012B01D2251/304B01D2251/604Y02A50/20
Inventor 李晓波涂世恩姬鹏沈腾朱向利陈秋燕张西兆
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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