A marine carbon capture post-combustion co2 ocean sequestration device

Abstract

The present application relates to the field of energy saving and emission reduction, disclose a kind of ship carbon dioxide ocean storage device after carbon capture, the carbon dioxide ocean storage device is composed of carbon dioxide throwing projectile and throwing device, the throwing device is used to throw the carbon dioxide throwing projectile according to preset angle and preset speed from ship to ocean.The present application is based on the carbon dioxide ocean storage method and system of ship, aiming at the present stage ocean storage problem, using dry ice throwing principle, provide a kind of new way of carbon dioxide capture and storage processing with lower cost and less engineering difficulty.

Description

Technical Field

[0001] The present invention relates to the field of energy conservation and emission reduction, and in particular to a device for storing carbon dioxide in the ocean after carbon capture by ships. Background Art

[0002] Faced with the challenge of climate change, the shipping industry unanimously agrees that achieving the established IMO greenhouse gas emission reduction target of 50% is difficult to achieve by relying solely on existing means and measures, including the use of clean energy. Even with a conservative forecast of global trade growth, achieving the 2050 emission reduction target based on current fossil fuel technology deployment scenarios will not significantly reduce or eliminate carbon emissions. Therefore, achieving zero carbon emissions by the end of this century can only be achieved through the introduction of zero-carbon energy sources and the development of carbon capture technology for ships. Currently, carbon capture and storage (CCS) technology is a mature technology for reducing CO2 emissions from land-based power plants, making it technically feasible to rapidly achieve large-scale CO2 emissions reductions from shipping. Due to the unique characteristics of ships, the subsequent disposal of captured CO2 is the "last mile" determining the success of CCS technology. Research has demonstrated that marine storage of CO2 is a viable disposal option. Due to the unique characteristics of the ocean and seabed environment, CO2 is relatively stable on the seabed. In the absence of major geological movements, CO2 can be stably stored below 500 meters below the seabed, potentially for up to 1,000 years.

[0003] However, carbon dioxide ocean storage is currently mostly used in the oil extraction industry. Liquid carbon dioxide is injected into the deep sea at low temperature, high pressure or supercritical state through drilling platform pipelines for oil recovery. Carbon dioxide forms a carbon paste in the ocean in liquid form and exists stably. As for how to store carbon dioxide captured on ships into the sea, due to the special nature of ships, it is impossible to use pipelines to inject liquid carbon dioxide into the ocean for storage. In addition, because the amount of carbon dioxide produced by ships is huge, about 13 tons / hour (taking a 16,000TEU container ship as an example), if it is stored on board in liquid form, it will occupy a large cargo volume of the ship, causing large economic losses to the shipowner, which will reduce the shipowner's enthusiasm for using carbon capture technology to reduce carbon emissions. Therefore, if the captured carbon dioxide is made into solid dry ice and thrown into the sea, it will not occupy the cargo volume. In addition, the sea area below 500 meters in the ocean is vast, and carbon dioxide can be thrown at any time, which will greatly solve the problem of the whereabouts of carbon dioxide after ship carbon capture.

[0004] Therefore, how to throw the carbon dioxide into the sea for storage is one of the keys to realize the ship carbon capture ocean storage, and the throwing must ensure that the carbon dioxide has a certain shell hardness, a minimum fluid resistance shape, an initial sea entry speed, and a maximum to ensure that the carbon dioxide quickly settles so as to reduce the loss of carbon dioxide in the settling process, and the length must ensure that the carbon dioxide is completely buried in the seabed to ensure the storage effect without leakage. SUMMARY

[0005] The main purpose of the present application is to solve the problems in the prior art. The present application provides a ship carbon capture carbon dioxide ocean storage device, characterized in that the carbon dioxide ocean storage device is composed of a carbon dioxide throwing projectile and a throwing device, and the throwing device is used to throw the carbon dioxide throwing projectile into the sea from the ship according to a preset angle and a preset speed.

[0006] The carbon dioxide ocean storage device further comprises a head 2-piece armor, the carbon dioxide throwing projectile is provided with the head 2-piece armor, and the throwing device completes the lifting, rotating and releasing operations of the carbon dioxide throwing projectile through the head 2-piece armor.

[0007] The carbon dioxide throwing projectile body is a tapered cylinder, and the head is a conical type.

[0008] The carbon dioxide throwing projectile is composed of liquid carbon dioxide, solid dry ice and a shell from inside to outside, the tail of the shell is provided with an integrated 4-piece tail wing, and the tail of the shell encapsulates a GPS module.

[0009] The head 2-piece armor is made of degradable plastic, and the thickness is 3mm-5mm, which is fixed in a buckle type.

[0010] The shell is made of PLA or PHA bio-based material, and the thickness is 2-3mm.

[0011] The throwing device is composed of a base, a vertical rod, a rocker arm, a rotating assembly, a lifting assembly and a mechanical hand clamp, the base is fixed on the deck of the ship, one end of the vertical rod is fixed on the base, the other end of the vertical rod is connected with the rocker arm, one end of the rocker arm is provided with a rocker arm control module, the rocker arm control module is used to control the horizontal rotation of the rocker arm, the other end of the rocker arm is provided with a mechanical hand clamp and a lifting module, the mechanical hand clamp is used to clamp the carbon dioxide throwing projectile, and the lifting module is used to lift the carbon dioxide throwing projectile.

[0012] The throwing device further comprises a water depth measuring module, the water depth measuring module is used to measure the depth of the sea where the ship is located, and when the measured depth reaches a preset depth, the throwing process of the carbon dioxide throwing projectile is started.

[0013] The throwing device also includes a control box, a ship speed sensor and a linear speed sensor. The ship speed sensor is used to collect the current horizontal speed of the ship in real time, and the linear speed sensor is used to measure the linear speed of the end of the rocker arm. The PLC controller in the control box collects information from the ship speed sensor and the linear speed sensor, outputs an analog signal to control the rocker arm, so that the rocker arm is perpendicular to the sailing direction and the linear speed of the rocker arm end is consistent with the ship speed, and controls the manipulator clamp to release the carbon dioxide throwing bomb.

[0014] The vertical rod and rocker arm of the throwing device are made of 304L or 316L stainless steel.

[0015] Research has shown that when dry ice is dropped into the sea and begins to sink, its surface evaporates rapidly. When the dry ice reaches a depth of 500m below the thermocline, the external pressure can reach 50 atmospheres, and the seawater temperature is around 5 degrees Celsius. In this environment, carbon dioxide cannot escape as a gas, and the surface of the dry ice partially liquefies. However, its density is still greater than that of seawater, so it continues to sink until it reaches the seabed. Throughout the entire sinking process, carbon dioxide losses can be controlled within 2%, and the hydrated carbon dioxide formed on the surface of the dry ice during the sinking process also reduces process losses.

[0016] The ship-based carbon dioxide ocean storage method and system of the present invention addresses the current ocean storage problem and adopts the principle of dry ice throwing to provide a new way of post-capture storage of carbon dioxide with low cost and less engineering difficulty.

[0017] The carbon dioxide shell of the present invention is made of bio-based materials, which reduces the additional carbon dioxide loss caused by traditional marine storage in the form of carbon-fixing dry ice, and has no impact on the marine environment. The carbon dioxide shell contains liquid inside and a partially dry ice shell outside, maintaining an internal temperature of -50°C. Compared with traditional solid dry ice, it reduces energy consumption and carbon dioxide loss. The carbon dioxide projectile is reinforced with two snap-on armor plates on the head to ensure that the projectile penetrates the seabed. The tail of the bio-based shell is equipped with a tail fin to ensure that it enters the sea in an upright posture, and a GPS module is installed to track and confirm the projectile.

[0018] The throwing device of the present invention is equipped with an echo sounder to ensure that the throwing is carried out when the water depth conditions are met; the throwing device calculates the rotation speed of the rocker arm according to the seabed depth and the ship speed to ensure that there is no horizontal speed when entering the sea; the throwing device lifting assembly is equipped with two sets of limit switches to ensure that the carbon dioxide throwing bomb is lifted and clamped within 30 seconds; the throwing device adopts an electromagnetically controlled manipulator for clamping and releasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the carbon dioxide marine storage device installed on the side of the ship.

[0020] Figure 2 This is a schematic diagram of the structure of a carbon dioxide throwing bomb.

[0021] Figure 3 Schematic diagram of the throwing device structure.

[0022] Figure 4 This is a schematic diagram of the process of the carbon dioxide ocean storage device after ship carbon capture.

[0023] The reference numerals are as follows:

[0024] CO2 throwing bomb 1, throwing device 3, head 2-piece armor 2, ship deck 4, liquid carbon dioxide 11, solid dry ice 12, shell 13, GPS module 14, base 31, vertical pole 32, rocker arm 37, rocker arm control module 36, lifting module 41, manipulator clamp 43, control box 33, water depth measurement module 34, linear velocity sensor 39. DETAILED DESCRIPTION

[0025] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or production equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or production equipment.

[0026] In order to solve the above casting technical problems, the present invention provides a casting device installed at the end of the ship ( Figure 1 ), mainly including carbon dioxide bombs ( Figure 2 ), throwing device. The carbon dioxide liquid inlet and curing chamber are located in the cabin and are not within the scope of this patent. After curing and forming, the carbon dioxide throwing bomb is equipped with two snap-on armors on the head and the throwing device completes the lifting, rotation and release operations. The throwing device consists of a base, a vertical pole, a rocker arm, a rotating assembly, a lifting assembly and a manipulator clamp. The base is fixed on the deck of the ship, one end of the vertical pole is fixed on the base, and the other end of the vertical pole is connected to the rocker arm. A rocker arm control module is provided at one end of the rocker arm, and the rocker arm control module is used to control the rocker arm to rotate in the horizontal direction. A manipulator clamp and a lifting module are provided at the other end of the rocker arm. The manipulator clamp is used to clamp the carbon dioxide throwing bomb, and the lifting module is used to lift the carbon dioxide throwing bomb.

[0027] The CO2 bomb, after entering the solidification chamber, undergoes heat exchange to form an outer layer of dry ice with a thickness of no less than 2cm. The bomb is spindle-shaped, with a conical head and a diameter of 0.7 meters at its widest point. The main body is a tapered cylindrical body with a diameter of 0.2 meters at its narrowest point. The total length is 2.5 meters. The bomb volume is about 0.5m3, and the density after production is 1.15-1.25g / cm 3 , single weight is 575~625kg:

[0028] In a preferred embodiment, the CO2 bomb has an outer layer made of bio-based materials such as PLA and PHA, with a thickness of 2-3 mm. Four tail fins, 10 mm thick and 600 mm long, are integrated into the tail of the shell to stabilize the bomb's position after impact. A GPS module is also encapsulated in the tail of the shell to record the location of the bomb.

[0029] As a preferred embodiment, the two-piece head armor is made of biodegradable plastic, has a thickness of 3mm to 5mm, and is fixed in a snap-on manner;

[0030] As a preferred embodiment, the vertical rod and rocker arm of the throwing device are made of 304L or 316L stainless steel, which is resistant to low temperature and corrosion;

[0031] As a preferred embodiment, the throwing device also includes a water depth measurement module, which is used to measure the depth of the ocean in which the ship is located. When the measured depth reaches a preset depth, the throwing process of the carbon dioxide throwing bomb is started.

[0032] As a preferred embodiment, the casting device also includes a control box, a ship speed sensor and a linear speed sensor. The ship speed sensor is used to collect the current horizontal speed of the ship in real time, and the linear speed sensor is used to measure the linear speed of the end of the rocker arm. The PLC controller in the control box collects information from the ship speed sensor and the linear speed sensor, outputs an analog signal to control the rocker arm, so that the rocker arm is perpendicular to the sailing direction and the linear speed of the rocker arm end is consistent with the ship speed, and controls the manipulator clamp to release the carbon dioxide casting bomb.

[0033] As a preferred embodiment, Figure 4The depth ranging probe uses an echo sounder to ensure that the casting process can only be initiated when the water depth exceeds 500 meters. The ship speed sensor is installed in the control box and is used to collect the current horizontal speed of the ship in real time. The rocker arm end linear velocity sensor is installed on the release arm. It uses a linear velocity sensor with a range of 0-10m / s. This sensor feeds the speed signal back to the PLC controller in the control box. After comparison with the current ship speed, the output analog signal controls the frequency converter to drive the motor rotation. When the rocker arm is perpendicular to the direction of travel, the rocker arm end linear velocity and the ship speed are basically consistent. The lifting assembly consists of a motor and a winch assembly and is equipped with two sets of limit switches to ensure that the CO2 bomb is lifted and clamped within 30 seconds. The release manipulator is electromagnetically controlled. When the CO2 bomb reaches the limit, the manipulator clamps the CO2 bomb and the hook is automatically released. When the rocker arm rotates to 90 degrees, the manipulator is released under electromagnetic control, and the CO2 bomb is released in a free-fall state.

[0034] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A carbon dioxide ocean storage device after ship carbon capture, characterized in that: The carbon dioxide ocean storage device consists of a carbon dioxide throwing bomb and a throwing device, and the throwing device is used to throw the carbon dioxide throwing bomb from a ship into the ocean at a preset angle and preset speed; The carbon dioxide bomb is composed of liquid carbon dioxide, solid dry ice and an outer shell from the inside to the outside; The CO2 bomb is equipped with a two-piece armor reinforcement on the head to ensure that the bomb penetrates the seabed. The two-piece armor on the head is fixed with buckles; The throwing device completes the lifting, rotation and release operations of the carbon dioxide throwing bomb through the two-piece armor on the head.

2. The marine storage device for carbon dioxide after ship carbon capture according to claim 1, characterized in that: The carbon dioxide throwing bomb body is a tapered cylindrical shape, the head is a cone shape, the tail of the shell is provided with an integrated tail wing, and the tail of the shell is encapsulated with a GPS module.

3. The marine storage device for carbon dioxide after ship carbon capture according to claim 1, characterized in that: The two-piece head armor is made of degradable plastic with a thickness of 3mm to 5mm.

4. The marine storage device for carbon dioxide after ship carbon capture according to claim 3 is characterized in that: The shell is made of PLA or PHA bio-based material and has a thickness of 2-3 mm.

5. The marine storage device for carbon dioxide after ship carbon capture according to claim 1, characterized in that: The throwing device consists of a base, a vertical pole, a rocker arm, a rocker arm control module, a lifting module and a manipulator clamp. The base is fixed on the ship deck, one end of the vertical pole is fixed on the base, and the other end of the vertical pole is connected to the rocker arm. A rocker arm control module is set at one end of the rocker arm, and the rocker arm control module is used to control the rocker arm to rotate in the horizontal direction. A manipulator clamp and a lifting module are set at the other end of the rocker arm. The manipulator clamp is used to clamp the carbon dioxide throwing bomb, and the lifting module is used to lift the carbon dioxide throwing bomb.

6. The marine storage device for carbon dioxide after ship carbon capture according to claim 5, characterized in that: The throwing device also includes a water depth measurement module, which is used to measure the depth of the ocean where the ship is located. When the measured depth reaches a preset depth, the throwing process of the carbon dioxide throwing bomb is started.

7. The marine storage device for carbon dioxide after ship carbon capture according to claim 5, characterized in that: The casting device also includes a control box, a ship speed sensor and a linear speed sensor. The ship speed sensor is used to collect the current horizontal speed of the ship in real time, and the linear speed sensor is used to measure the linear speed of the end of the rocker arm. The PLC controller in the control box collects information from the ship speed sensor and the linear speed sensor and outputs an analog signal to control the rocker arm, so that the rocker arm is perpendicular to the sailing direction and the linear speed of the rocker arm end is consistent with the ship speed, and controls the manipulator clamp to release the carbon dioxide casting bomb.

8. The marine storage device for carbon dioxide after ship carbon capture according to claim 5, characterized in that: The vertical rod and rocker arm of the throwing device are made of 304L or 316L stainless steel.

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