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Apparatus for removing nitrogen oxides

A technology for nitrogen oxides and initial substances, which is used in mufflers, exhaust devices, propulsion engines, etc., can solve problems such as low nitrogen oxide removal performance, and achieve the goal of improving production efficiency, reducing production costs, and improving uniformity. Effect

Inactive Publication Date: 2014-02-19
THE DECOR
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Problems solved by technology

Therefore, this is likely to be the cause of poor NOx removal performance

Method used

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  • Apparatus for removing nitrogen oxides
  • Apparatus for removing nitrogen oxides
  • Apparatus for removing nitrogen oxides

Examples

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Embodiment Construction

[0083] Both the foregoing description and the following detailed description are examples providing additional description of the invention. Therefore, the examples of the present invention described here are not limited and can appear in various forms. The embodiments described here are all provided to make the displayed content more complete and fully express the operator's inventive thought.

[0084] In this specification, when some components include certain components, it is indicated that other components may be included. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0085] Relatively low exhaust temperatures suitable for NOx removal plants using selective catalytic reduction will have a negative effect. For example, when the exhaust gas of a marine propulsion engine passes through a turbocharger, heat is lost, and the temperature of the exhaust gas after passing through the turbocharger will drop to 250...

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Abstract

PURPOSE: Apparatus for removing nitrogen oxide and a method thereof are provided to reduce hot idling of an engine by minimizing space capacity inserted between the engine and a supercharger turbine. CONSTITUTION: Apparatus(100) for removing nitrogen oxide comprises a reducing agent feeder(130) and a catalyst reducing unit. The reducing agent feeder sprays initial materials to exhaust gas of a first engine. The reducing agent feeder produces a reducing agent from the sprayed initial materials through a thermal reaction generated by contact between the exhaust gas and the initial materials. The catalyst reducing unit removes the nitrogen oxide in the exhaust gas of a second engine by a catalytic reduction reaction. [Reference numerals] (AA) Outlet

Description

[0001] This application is a divisional application of patent application No. 201310183470.1 with the filing date of May 17, 2013 and the title of the invention being "nitrogen oxide removal device and nitrogen oxide removal method thereof". technical field [0002] The present invention relates to a device for removing nitrogen oxides, and more specifically relates to a device for effectively removing nitrogen oxides contained in engine exhaust. Background technique [0003] The diesel engine produces NO and NO in the combustion process inside the cylinder 2 Nitrogen oxides (hereinafter referred to as NO x ). NO x It is one of the symbolic public hazards, aiming at the NO emitted during the combustion process x Removal studies are increasingly diverse. [0004] In particular, the International Maritime Organization (IMO) affiliated to the United Nations (United Nation, UN) has begun to restrict the emission of nitrogen oxides from ships. According to Chapter 6 of Annex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/94B01D53/56
CPCB01D53/94B63H21/32F01N3/10F01N3/28F01N5/02F01N2570/14F01N2590/02F01N2610/146
Inventor 李东俊裵钟旭林健
Owner THE DECOR
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