WO2020141791A1

WO2020141791A1 - Apparatus and method for treating ship exhaust gas in combination with ballast water

Info

Publication number: WO2020141791A1
Application number: PCT/KR2019/018427
Authority: WO
Inventors: 손을택; 손덕순
Original assignee: (주)나노에스텍수산
Priority date: 2019-01-01
Filing date: 2019-12-24
Publication date: 2020-07-09
Also published as: KR102064100B1

Abstract

The present invention pertains to an apparatus and a method for treating ship exhaust gas in combination with ballast water. When exhaust gas produced from the combustion of fuel oils in a ship are discharged in the form of ultra-fine exhaust gas bubbles into water, microorganisms are killed by hydroxyl groups (OH-) generated by the decomposition of water molecules, and carbon dioxide (CO₂) contained in the exhaust gas is combined into calcium hydrogen carbonate (Ca(HCO3)2) or magnesium hydrogen carbonate (Mg(HCO3)2) and the like, and dissolved into the water.

Description

Apparatus and method for combined discharge and ballast water from ships

The present invention relates to a ballast water treatment and discharge exhaust treatment of a ship, and relates to an apparatus and method for the combined treatment of microorganisms and discharge exhaust in the ballast water in a single device.

Conventionally, a ship generates power by burning liquid fuel as air, loads ballast water to secure the stability of the ship, discharges ballast water at the time of cargo entering the port, or repeats loading.

However, the combustion exhaust of fuel oil contains carbon dioxide (CO₂), which is a cause of global warming, and has a problem of disturbing the marine ecosystem by discharging ballast water containing microorganisms.

In order to solve these problems, the world is working jointly by signing a global warming prevention treaty to reduce carbon dioxide emissions into the atmosphere and a ballast water management agreement to remove microorganisms from ballast water.

Technology development for solving such problems is required, and accordingly technologies such as a ship exhaust gas treatment device and method (Publication No. 10-2015-0028136), a ship ballast water treatment system and method (Publication No. 10-2014-0108740), etc. It has been developed and proposed as a patent application.

And, in recent years, shipbuilding using natural gas fuel such as LNG instead of liquid fuel oil has been proposed.

However, ships have a limited area on board, and if ballast water treatment and exhaust treatment devices are installed in a limited area, they have a problem of requiring a large area and cost, and even when using natural gas as fuel, exhaust emission occurs. .

The present invention decomposes carbon dioxide (CO₂) contained in the exhaust gas generated during the combustion of fuel oil in a ship into extremely fine foam and disperses it into the ballast water, while the extremely fine foam dispersed in water bursts due to its unique action. Hotspots are formed, water molecules are decomposed in extreme reaction fields, hydroxyl groups (OH-) are formed to kill microorganisms, and carbon dioxide (CO₂) in the exhaust is calcium hydrogen carbonate (Ca(HCO3)2), It is synthesized with magnesium hydrogen carbonate (Mg(HCO3)2) and dissolved in water with nitrogen oxides (NOx) and sulfur oxides (SOx).

In addition, the present invention enables to treat both the exhaust exhaust which combusts liquid fuel with air, the exhaust exhaust which combusts liquid fuel with oxygen, the exhaust exhaust which combusts natural gas with air, and the exhaust exhaust which combusts natural gas with oxygen. There is a purpose.

In order to solve the above problems, the present invention is to install the device in the vessel as follows.

An exhaust compressor (C) for compressing exhaust; A first micro-bubble generator (A) and a second micro-bubble generator (B) for generating micro-bubbles; A treatment tank (D) divided into an inflow chamber 14, a reaction chamber 15, and a stabilization chamber 16; Is composed of the main device.

The exhaust compression device (C) is connected to the exhaust inlet pipe (1), and a compressed exhaust transfer pipe (2) is attached.

The first ultra-fine foam generator (A) is provided with a compressed exhaust supply pipe (3), connected to the compressed exhaust transfer pipe (2) through an open/close valve (4), and connected to the processing tank (D) from the opposite side to provide a very fine exhaust. A discharge pipe (5) for discharging catcher is laid, and a ballast water supply pipe (6) is laid on the same side to be connected to the ballast water transfer pipe (8) through an open/close valve (7).

The second ultrafine foam generator (B) is provided with a compressed exhaust supply pipe (3-1), connected to the compressed exhaust transfer pipe (2) through an open/close valve (4-1), and connected to the treatment tank (D) from the opposite side. The discharge pipe (9) for discharging the ultra-fine exhaust gas gun is laid, and the ballast water supply pipe (6-1) is laid on the same side, connected to the ballast water transfer pipe (8) through an on-off valve (7-1),

The ballast water transfer pipe (8) is branched into two pipes at the inflow side, and an on/off valve (17) and an on/off valve (19) are respectively attached to the ballast water inlet pipe (18) and on/off valve (19). The seawater inflow pipe 20 is connected.

The treatment tank (D) is divided into an inflow chamber (14), a reaction chamber (15), and a stabilization chamber (16) by partition plates (12, 13), and a ballast water supply pipe (11) is installed in the inflow chamber (14). Is connected to the ballast water transfer pipe 8 through the opening/closing valve 10, the discharge pipe 5 attached to the first microscopic bubble generation device A is connected, and the reaction chamber 15 has the second microscopic strength The discharge pipe (9) attached to the gun generator (B) is connected, and to the stabilization chamber (16) is connected to the on/off valve (21) connected to the ballast water discharge pipe (22) at the rear and the seawater discharge pipe (24) facing the sea. The connected opening/closing valve 23 is laid in close proximity so that the device is constructed.

Above, the ballast water refers to the water stored in the ballast water or fresh water tank, the ballast water is not limited to sea water and can be used by replacing it with fresh water.

In the above, the seawater inflow pipe 20 and the seawater discharge pipe 24 inflow the seawater when it is difficult to supply the ballast water and dissolve the discharged exhaust into the seawater to discharge it into the seawater.

Hereinafter, the operation of the device will be described.

A step in which the ballast water is supplied from the ballast water tank of the ship to the treatment tank (D) and loaded, and the ballast water is supplied to the first and second ultra-fine foam generators to operate the apparatus;

Ballast water is pressurized to 8 atmospheres or more by the operation of the

ultrafine foam generators

1 and 2, and the compressed exhaust is pressurized from the exhaust compressor to finely decompose and processed into ultrafine exhaust gunners;

Steps

1 and 2 of the ultra-fine air bubble generation devices A and B, which are pressurized at a high pressure of 8 atmospheres or more, are discharged and diffused at normal pressure in the inlet chamber and the reaction chamber of the treatment tank, respectively;

A step of forming extreme reaction fields (Hotspots) on the interface of the ultrafine exhaust gas bubbles as the microscopic exhaust air bubbles discharged into the inlet and reaction chambers shrink and shrink and rupture;

Water molecules (H₂O) are decomposed into hydrogen ions (H+) and hydroxyl groups (OH-) in extreme reaction fields (Hotspots) to kill microorganisms in water;

Carbon dioxide (CO₂) is reacted with inorganic substances such as calcium (Ca) and magnesium (Mg) in water by rupture of the ultrafine air bubbles, calcium hydrogen carbonate (Ca(HCO3)2), magnesium hydrogen carbonate (Mg(HCO3)2 ) And dissolved in water;

A step in which the microorganisms are killed and the ballast water in which carbon dioxide (CO₂) is dissolved is discharged to the ballast tank of the ship through the discharge pipe;

Through the above steps, the killing of microorganisms and carbon dioxide (CO₂) in the ballast water are combined.

In the above, when the supply of water is insufficient due to a decrease in the ballast water, the seawater is introduced through the seawater inflow pipe and then discharged into the seawater through the seawater discharge pipe through the above steps.

The present invention is capable of contributing to the prevention of global warming by protecting the ecosystem and preventing the emission of carbon dioxide into the atmosphere by reducing costs by performing a combined treatment of dissolving the combustion exhaust gas containing carbon dioxide in water while killing microorganisms in the ballast water.

1 is a connection plan view of a device.

The present invention will be described in detail on the drawings.

Figure 1 is a connection plan view of the device, A is the first micro-bubble generator, B is the second micro-bubble generator, C is the exhaust compression device, D is the treatment tank.

Compressed exhaust supply pipe (3) is attached to the first ultrafine foam generator (A) and is connected to the compressed exhaust transfer pipe (2) through an open/close valve (4) to receive compressed exhaust from the exhaust compression system (C), On the opposite side, a discharge pipe (5) for discharging ultra-fine exhaust gas catchers is connected to the inlet chamber (14) of the treatment tank (D), and a ballast water supply pipe (6) for supplying ballast water is installed to open and close the valve (7). ) Is connected to the ballast water transfer pipe (8) to receive the ballast water.

Compressed exhaust supply pipe (3-1) is attached to the second ultrafine foam generator (B), which is connected to the compressed exhaust transfer pipe (2) through an open/close valve (4-1) to receive compressed exhaust, and is extremely fine to the opposite side. A discharge pipe (9) for discharging the device catcher is attached to the reaction chamber (15) of the treatment tank (C), and a ballast water supply pipe (6-1) for supplying ballast water is installed to open and close a valve (7-1) ) Is connected to the ballast water transfer pipe (8) to receive the ballast water.

Above, the ballast water transfer pipe 8 connected to the on-off valve 7-1 is branched into two pipes at the inflow side, and the on-off valve 17 and the on-off valve 19 are attached to the ballast water inlet pipe to the on-off valve 17 (18) is connected, the seawater inlet pipe (20) is connected to the on-off valve (19), and when the supply of ballast water is difficult, the seawater is introduced through the seawater inlet pipe.

Above, the ballast water refers to the water stored in the ballast tank, and can be used as ballast water without distinction between sea water and fresh water.

Above, the ballast water inlet pipe 18 is not shown, but is connected to the ballast water tank of the ship, and the sea water inlet pipe 20 is connected into the sea water of the sea.

In the above, the on-off valve 17 is opened at the time of ballast water inflow and closed at the time of seawater inflow, and on the contrary, the on-off valve 19 is closed at the time of ballast water inflow and is opened at the time of seawater inflow to select the ballast water and seawater inflow. do.

Above, No. 1 and No. 2 micro-bubble generators (A, B) are devices of the micro-bubble generators (10-1022612) registered with the Korean Intellectual Property Office, and the devices are pressurized pumps, mixing pipes equipped with brackets It is composed of a plurality of tubes that contract and expand while varying the diameter, and it functions to decompose a cluster of molecules into extremely fine bubbles while repeating mixing, pressurization, crushing, expansion, collision, and turning of liquid and gas. .

Above, No. 1 and No. 2 micro-bubble generators (A, B) may be replaced with devices superior to the suggested micro-bubble generators (10-1022612).

From the top, the microscopically disintegrated microscopic micropore shrinks while shrinking in water and bursts when it reaches the limit, and when it bursts, it forms hot spots on the outer peripheral surface of the micro micropore and exists in this extreme reaction field. The substance to be decomposed is decomposed, and the water molecules are also decomposed into hydrogen ions (H+) and hydroxyl groups (OH-).

Above, the ultra-fine century bubble refers to a nano-sized bubble.

Exhaust compression device (C) is integrated to connect the equipment for cooling and filtering of the incoming exhaust, and the exhaust inlet pipe (1) and the compressed exhaust transfer pipe (2) is attached, the exhaust inlet pipe (1) is the ship exhaust It is connected to the discharge pipe of the source to introduce combustion exhaust, and compresses the incoming exhaust gas at a high pressure of 8 atmospheres or more to supply it to the first and second ultrafine foam generators (A, B) through the compressed exhaust transfer pipe (2).

In the above, the exhaust can be divided into an exhaust exhaust in which liquid fuel is combusted with air, an exhaust exhaust in which liquid fuel is combusted with oxygen, an exhaust exhaust in which natural gas is combusted with air, an exhaust exhaust in which natural gas is combusted with oxygen, and the like. When liquid fuel and natural gas fuel are burned with oxygen instead of air, the exhaust is reduced by the amount of nitrogen contained in the air. In particular, when the natural gas is burned with oxygen, the exhaust exhaust is greatly reduced, and the exhaust compressor (C) can be miniaturized. Can be. Therefore, the size of the exhaust compression device (C) is configured by adjusting according to the amount of exhaust exhaust.

The present invention can treat both the exhaust exhaust which combusts liquid fuel with air, the exhaust exhaust which combusts liquid fuel with oxygen, the exhaust exhaust which combusts natural gas with air, and the exhaust exhaust which combusts natural gas with oxygen.

The treatment tank (D) is divided into an inlet chamber (14), a reaction chamber (15), and a stabilization chamber (15) by the partition plates (12, 13), and the partition plates (12, 13) have a ballast water flowing in to the upper side. The height is adjusted to smoothly flow, and a drain pipe (not shown) is provided at the bottom.

Above, the inlet chamber 14 is connected to the discharge pipe 5 of the first micro-strength bubble generating device B, and a ballast water supply pipe 11 is attached to the ballast water transfer pipe 8 through the on-off valve 10. Connected to the reaction chamber 15, the discharge pipe 9 of the second ultra-fine foam generator B is connected, and the stabilization chamber 16 is provided with an on-off valve 21 and an on-off valve 23. The open/close valve 21 is connected to a ballast water discharge pipe 22 connected to a ballast water tank and a seawater discharge pipe 24 directed to the sea to the open/close valve 23, respectively.

In the above, the ultra-fine exhaust air bubbles are discharged from the first and second ultra-fine bubble generators A and B in the inlet chamber 14 and the reaction chamber 15, and are diffused.

Above, the on-off valve 19 connecting the seawater inlet pipe 20 and the on-off valve 23 connecting the seawater discharge pipe 24 are closed when the ballast water is introduced, and open when the seawater is introduced, The on-off valve 17 and the on-off valve 21 are closed.

In the above, the inflow of seawater is reduced to a small amount of the ballast water in the ship or when the ballast water is not available, and the exhaust gas containing carbon dioxide is dissolved in the seawater through the same treatment steps as the ballast water inflow. It is discharged into the sea water.

Hereinafter, the operation of the present invention will be described.

First, the apparatus is operated to adjust the ballast water to be discharged from the ballast water discharge pipe 22 of the stabilization chamber 16 while the ballast water flows into the inlet chamber 14, the reaction chamber 15, and the stabilization chamber 16.

Then, the inlet chamber 14 and the reaction chamber 15 are discharged and diffused by the ultra-fine exhaust air bubbles from the first and second ultra-fine bubble generators A and B, and the inlet chamber 14 and the reaction chamber 15 The micro-exhaust air bubbles diffused in) are shrunk as shrinkage progresses to reach the limit and rupture, and extreme reaction fields (hotspots) are formed at the boundary surface of the micro-exhaust air bubbles that burst, and water present in the extreme reaction field Silver decomposes into hydrogen ions (H+) and hydroxyl groups (OH-), which attack microorganism cells and kill microorganisms.

Next, the carbon dioxide (CO₂) contained in the ultra-fine exhaust gas diffused in the inflow chamber 14 and the reaction chamber 15 is combined with inorganic substances such as calcium (Ca) and magnesium (Mg) contained in sea water to form calcium carbonate. (Ca(CO₃)), calcium hydrogen carbonate (Ca(HCO₃)₂), or magnesium carbonate (Mg(CO₃)), magnesium hydrogen carbonate (Mg(HCO3)2), combined with nitrogen oxide (NOx), sulfur oxide ( SOx) and the like is discharged through the ballast water discharge pipe 22 of the stabilization chamber 16 and flows into the ballast water tank.

On the other hand, when the ballast water is not available, the exhaust gas is dissolved in the seawater and discharged into the seawater while passing through the same treatment steps as the ballast water treatment even when the seawater is introduced.

The present invention reduces the cost by performing a combined treatment of dissolving carbon dioxide (CO₂) in water while killing microorganisms in the ballast water, while preventing the ecological disturbance caused by the discharge of ballast water while preventing the emission of carbon dioxide (CO₂) into the atmosphere. It will contribute to the prevention of warming.

In the present invention, the ballast water of the ship is not limited to seawater, and fresh water containing inorganic materials can also be used as ballast water.

The present invention is not limited to a ship, and can be used for any combustion device that generates combustion exhaust.

Claims

An exhaust compression device (C) connected to the exhaust inlet pipe (1) and provided with a compressed exhaust transfer pipe (2);

Compressed exhaust supply pipe (3) is laid and connected to the compressed exhaust transfer pipe (2) through an open/close valve (4), and discharge pipe (5) connected to the treatment tank (D) on the opposite side is laid, and the ballast water is provided on the same side. No. 1 ultra-fine-strength generator (A) connected to the ballast water transfer pipe (8) through the on-off valve (7) is provided with a supply pipe (6);

Compressed exhaust supply pipe (3-1) is laid and connected to the compressed exhaust transfer pipe (2) through an open/close valve (4-1), and the discharge pipe (9) connected to the treatment tank (D) from the opposite side is laid, and is the same A ballast water supply pipe (6-1) on the side is attached to the ballast water supply pipe (8) connected to the ballast water transfer pipe (8) through an on-off valve (7-1) (B);

A ballast water inlet pipe (18) and an on-off valve (19) branched into two pipes at the inlet side and connected to the on-off valve (17) and the on-off valve (19), respectively, and connected to the on-off valve (17) to the ballast water tank of the ship ) Is connected to the sea water inlet pipe 20 is connected to the ballast water transfer pipe (8);

The partition plate (12, 13) is divided into an inlet chamber (14), a reaction chamber (15), and a stabilization chamber (16), and an inlet chamber (14) is provided with a ballast water supply pipe (11) to open and close a valve (10). It is connected to the ballast water transfer pipe (8), the discharge pipe (5) attached to the first microscopic bubble generator (A) is connected, the reaction chamber (15) is the second microscopic bubble generator (B) The discharge pipe (9) laid in the connection, the stabilization chamber (16) is connected to the on-off valve (21) connected to the ballast water discharge pipe (22) at the rear and the open/close valve (23) connected to the seawater discharge pipe (24) Treated tank (D); Combined discharge device and ballast water treatment device, characterized in that is configured to be connected to each other.
An exhaust compressor (C) for compressing exhaust; A first micro-bubble generator and a second micro-bubble generator for generating micro-bubbles; A treatment tank (D) divided into an inflow chamber 14, a reaction chamber 15, and a stabilization chamber 16; In the device consisting of connected with the connector of the disturbance,

A step in which the ballast water is supplied from the ballast water tank of the ship to the treatment tank to be loaded, and the ballast water is supplied to the 1st and 2nd ultrafine foam generators to operate the apparatus;

Ballast water is pressurized to 8 atmospheres or more by the operation of the ultrafine foam generators 1 and 2, and the compressed exhaust is pressurized from the exhaust compressor to finely decompose and processed into ultrafine exhaust gunners;

Steps 1 and 2 of the ultra-fine air bubble generation devices A and B, which are pressurized at a high pressure of 8 atmospheres or more, are discharged and diffused at normal pressure in the inlet chamber and the reaction chamber of the treatment tank, respectively;

A step of forming extreme reaction fields (Hotspots) on the interface of the ultrafine exhaust gas bubbles as the microscopic exhaust air bubbles discharged into the inlet and reaction chambers shrink and shrink and rupture;

Water molecules (H₂O) are decomposed into hydrogen ions (H+) and hydroxyl groups (OH-) in extreme reaction fields (Hotspots) to kill microorganisms in water;

The carbon dioxide (CO₂) reacts with calcium (Ca) and magnesium (Mg) minerals in water by the rupture of the ultra-fine exhaust air bubbles, resulting in calcium hydrogen carbonate (Ca(HCO3)2) and magnesium hydrogen carbonate (Mg(HCO3)2). Combined and dissolved in water;

A step in which the microorganisms are killed and the ballast water in which carbon dioxide (CO₂) is dissolved is discharged to the ballast tank of the ship through the discharge pipe; A method of combining discharge and ballast of a ship, characterized in that the treatment of the destruction of microorganisms in the ballast water and the dissolution treatment of carbon dioxide (CO₂) in water are combined.
The method according to claim 2, characterized in that when the ballast water of the ship is not available, the seawater is introduced and the exhaust gas containing carbon dioxide (CO₂) is dissolved in the seawater through the same treatment steps as the ballast water treatment, and discharged into the seawater. The combined discharge and ballast water treatment method of the vessel.