Ship exhaust gas purification apparatus

WO2025244413A1PCT designated stage Publication Date: 2025-11-27NAEMSAEDDUK CO LTD
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Patent Information

Application Number
PCT/KR2025/006897
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-24
Filing Date
2025-05-21
Publication Date
2025-11-27

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Abstract

The present invention relates to a ship exhaust gas purification apparatus capable of preventing excessive consumption of ammonia (NH3) during the conversion of sulfur dioxide (SO2) contained in ship exhaust gas into ammonium bisulfate (NH4HSO4) through a reaction with ammonia (NH3). A ship exhaust gas purification apparatus according to the present invention comprises: a sulfur dioxide removal device for converting sulfur dioxide (SO2) contained in ship exhaust gas into gaseous ammonium bisulfate (NH4HSO4) in the presence of an oxidizer, water vapor (H2O), and ammonia (NH3); a reaction element mixing device for supplying a reaction element mixture containing an oxidizer, water vapor (H2O), and ammonia (NH3) to the sulfur dioxide removal device; an oxidizer supply device for supplying an oxidizer to the reaction element mixing device; a water vapor supply device for supplying water vapor to the reaction element mixing device; and an ammonia supply device for supplying ammonia (NH3) to the reaction element mixing device.
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Citation Information

Patent Citations

  • Ammonia-based Desulfurization Process and Apparatus through Ammonia-Adding in Different Chambers

    KR1020180129589A

  • Apparatus for reducing greenhouse gas emission in vessel and vessel including the same

    KR102232540B1

  • Apparatus for purifying exhaust gas

    KR102503254B1

  • Exhaust smoke denitrating apparatus and method of exhaust smoke denitration

    US20090220401A1

  • Water-ammonia mixture sprayer and exhaust gas desulfurizer using the same

    WO2002002210A1