Activated carbon type exhaust gas denitration device and method of ship

A technology of activated carbon and denitrification, which is applied in the direction of exhaust devices, noise reduction devices, separation methods, etc., can solve the problems of high economic cost, large space occupation, high reaction temperature, etc., and achieve good economical effect

Active Publication Date: 2018-10-02
HARBIN ENG UNIV
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  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to provide a tail gas denitrification device based on the activated carbon method in order to solve the defects of the original SCR technology such as l

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  • Activated carbon type exhaust gas denitration device and method of ship

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] combine figure 1 : Among them, 1 is marine diesel engine, 2 is exhaust gas turbocharger, 3 is flue gas three-way valve, 4 is PM removal device, 5 is NO oxidizer, 6 is flue gas cooler, and 7 is reactor flue gas control Valve, 8 is the NOx concentration sensor at the reactor inlet, 9 is the reactor, 10 is the NOx concentration sensor at the reactor outlet, 11 is the coolant outlet flowmeter, 23 is the coolant inlet flowmeter, 13 is the electromagnetic flow control valve, 14 is Coolant supply pump, 15 is coolant storage, 16 is temperature control unit, 17 is activated carbon storage cabinet, 18 is activated carbon installation device, 19 is temperature indicator, 20 is reactor temperature sensor, 21 is flue gas inlet pressure Indicator, 22 is the flue gas outlet pressure indicator, 23 is the activated carbon delivery control unit...

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Abstract

The invention provides an activated carbon type exhaust gas denitration device of a ship. The device comprises a waste gas turbocharger 2, a smoke three-way valve 3, a PM removing device 4, a smoke cooler 5, an NO oxygenizer 5, a reactor 9, an activated carbon conveying control unit 23 and a temperature control unit 16. Compared with an existing ship denitration device, the device is simple in system composition; activated carbon is used as an adsorbent and a reducing agent; the activated carbon is high in adsorbing capacity and reducing capacity, so that the size of the reactor of a denitration system is far less than the size of a reactor of an existing urea based ship SCR (Selective Catalytic Reduction) denitration system; and the existing ship SCR denitration system basically adopts NH3, prepared through a urea water solution, as the reducing agent, the urea water solution easily forms urea crystals on the surfaces of a mixer and a catalyst to cause the reduction of working performances of the denitration system, while for the device, the consumed material is only the activated carbon, so that the advantages are obvious.

Description

technical field [0001] The invention relates to a tail gas denitrification device and method, in particular to a ship tail gas denitrification device and method based on an activated carbon method, and belongs to the field of ship diesel engine emission control. Background technique [0002] The marine diesel engine has the advantages of high single-machine power, high fuel economy, and unit power CO 2 Low emissions and other advantages, so diesel engines are widely used in the field of marine transportation. Marine diesel engines will produce a large amount of NO in the working process. NO is a toxic air pollutant, which poses a great threat to the environment and human health. The International Maritime Organization (IMO) has always had strict restrictions on ship exhaust emissions. Among them, the Tier III emission guidelines of the MARPOL Convention were officially implemented on January 1, 2016, posing greater challenges to the NOx emission control of marine diesel eng...

Claims

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Application Information

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IPC IPC(8): F01N3/20F01N3/08B01D53/92B01D53/56
CPCB01D53/56B01D53/92F01N3/0807F01N3/0842F01N3/20F01N2250/12
Inventor 周松张钊朱元清冯永明
Owner HARBIN ENG UNIV
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