Marine engine tail gas carbon capture system

Abstract

The invention relates to a tail gas carbon capture system for a marine engine. The tail gas carbon capture system comprises a tail gas guide and pretreatment module, an intelligent carbon capture unit, an absorbent cyclic regeneration module, a carbon dioxide storage and transfer module and an emission control and optimization module. Tail gas is pretreated through efficient filtering equipment, carbon dioxide is captured through an absorption tower and an absorbent specially designed for carbon dioxide, real-time monitoring and dynamic adjustment are conducted through an intelligent control system, the optimal carbon capture efficiency is achieved, and energy consumption is reduced. The absorbent can be recycled, and the operation cost is reduced. And the captured carbon dioxide is stored after being compressed and liquefied, so that subsequent transfer or utilization is facilitated. The device is compact in overall design, reasonable in structure and capable of efficiently and stably capturing carbon dioxide in tail gas of the ship engine, and the atmospheric pollution burden is relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship engine exhaust treatment, specifically a ship engine exhaust carbon capture system, which is specially designed for real-time capture of carbon dioxide generated by engine combustion during ship navigation, and aims to reduce carbon dioxide emissions in ship engine exhaust, reduce the impact of greenhouse gases on the environment, improve ship energy utilization efficiency, and help achieve carbon emission reduction goals in the shipping industry. Background Art

[0002] With the increasing global environmental awareness and increasingly stringent carbon emission regulations in various countries, the shipping industry, as one of the main sources of carbon dioxide emissions, is facing tremendous pressure to reduce emissions. At present, mainstream marine engines still rely mainly on fossil energy, and the large amount of carbon dioxide released during their combustion process has become an important factor in global climate change. Therefore, how to use advanced technical means within the existing marine engine system to efficiently capture and treat carbon dioxide in combustion exhaust has become a core problem for the shipping industry to achieve its carbon emission reduction goals.

[0003] So far, carbon capture technology has been mostly used in fixed facilities such as land-based power plants and chemical plants, while the carbon capture solution for ship engine exhaust emissions is still in the initial exploration and research and development stage. In view of this situation, it is particularly important to develop a marine engine carbon capture system with an integrated intelligent control system. The system can optimize the carbon capture process according to the real-time operating status of the ship, improve the carbon capture efficiency, effectively reduce the system energy consumption, and achieve efficient capture and treatment of carbon dioxide in the exhaust gas. At the same time, the use of modular design makes the carbon capture system easier to adapt to the installation needs of different types of ships and simplifies the maintenance and upgrade of the system. Summary of the invention

[0004] The purpose of the present invention is to provide a marine engine exhaust carbon capture system, which can capture carbon dioxide generated by engine combustion in real time during the navigation of the ship, reduce pollution to the atmosphere, and comply with the International Maritime Organization's control requirements for ship carbon emissions.

[0005] In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0006] A marine engine exhaust carbon capture system is characterized in that it includes:

[0007] The exhaust gas guiding and pre-treatment module and the exhaust gas emission pipeline of the ship engine are used to filter the exhaust gas generated by the engine combustion and guide it to the intelligent carbon capture unit;

[0008] An intelligent carbon capture unit, connected to the exhaust gas guiding and pretreatment module, includes an intelligent control system, an absorption tower and a built-in absorbent specially designed for carbon dioxide, and is used to capture carbon dioxide in the exhaust gas. The intelligent control system monitors the ship's operating parameters in real time, and dynamically adjusts the absorbent flow rate, regeneration speed and exhaust gas treatment volume to achieve optimal carbon capture efficiency and reduce energy consumption;

[0009] An absorbent recycling module, connected to the intelligent carbon capture unit, is used to regenerate the absorbent in the absorption tower to ensure that the absorbent can be continuously recycled;

[0010] A carbon dioxide storage and transport module, connected to the intelligent carbon capture unit, for compressing and liquefying the captured carbon dioxide and storing it in a storage tank;

[0011] The emission control and optimization module is connected to the carbon dioxide storage and transfer module and is used to control the flow and composition of exhaust emissions to ensure that the exhaust gas emitted by the ship meets environmental protection standards.

[0012] Furthermore, the intelligent carbon capture unit also includes machine learning technology, which trains models through historical data, predicts the ship's navigation status and engine load changes, and adjusts the capture strategy in advance.

[0013] Furthermore, the absorbent recycling module also includes a pumping system. When the absorbent reaches a saturated state, the system automatically starts the pumping system, uses a high-pressure pump to extract the absorbent from the absorption tower, and transports it to the absorbent recycling module through a pipeline for regeneration.

[0014] Furthermore, the intelligent control system also includes sensors for real-time monitoring of ship operating parameters, including engine load, speed, ambient temperature, etc., and dynamic adjustment based on artificial intelligence algorithms.

[0015] Furthermore, the carbon dioxide storage and transport module also includes compression equipment and liquefaction equipment for compressing and liquefying the separated carbon dioxide and storing it in a carbon dioxide storage tank.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1) Considering the limitations and complexity of ship space, the present invention adopts a modular design concept, designs the above five core modules into independently working units, and unifies the interface standards, so as to facilitate flexible combination and installation according to the actual space layout of the ship. This design is not only suitable for the green design of new ships, but also for the environmental upgrading and transformation of old ships. The modular structure also greatly simplifies the maintenance process of the system. Any module failure can be quickly replaced or repaired separately, effectively reducing the downtime of the ship.

[0018] 2) The modular structure also greatly simplifies the system maintenance process. Any module failure can be quickly replaced or repaired individually, effectively reducing the ship's downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the marine engine exhaust carbon capture system of the present invention. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments, but this should not limit the protection scope of the present invention.

[0021] This embodiment discloses a marine engine exhaust carbon capture system, which is designed to capture carbon dioxide generated by engine combustion in real time during ship navigation, aiming to reduce the pollution burden on the atmosphere and ensure compliance with the strict control requirements of the International Maritime Organization on ship carbon emissions. Figure 1 As shown, the system comprises:

[0022] Exhaust gas guidance and pretreatment module 1: It consists of an exhaust pipe and high-efficiency filtering equipment, which is responsible for guiding the exhaust gas generated by engine combustion into the carbon capture process, effectively filtering impurities, and laying the foundation for the subsequent capture process.

[0023] Intelligent carbon capture unit 2: includes an absorption tower with a built-in absorbent designed specifically for carbon dioxide, which is used to capture carbon dioxide in exhaust gas. When the exhaust gas passes through the absorption tower, the absorbent reacts efficiently with carbon dioxide to capture carbon dioxide. An intelligent control system is introduced to monitor ship operating parameters (such as engine load, speed, ambient temperature, etc.) in real time through a dense network of sensors, and dynamically adjust the absorbent flow, regeneration speed and exhaust gas treatment volume based on artificial intelligence algorithms to ensure optimal carbon capture efficiency under various navigation conditions while greatly reducing energy consumption. This intelligent adjustment mechanism fully demonstrates the system's ability to adapt to complex navigation environments and significantly improves flexibility and energy efficiency.

[0024] Furthermore, machine learning technology is introduced to train models based on historical data to predict changes in ship navigation status and engine load, adjust capture strategies in advance, and further improve energy efficiency. An energy consumption monitoring and optimization module is added to monitor the energy consumption of each part of the system in real time and automatically adjust to the lowest energy consumption operation mode.

[0025] Absorbent recycling module 3: It is used to regenerate the absorbent in the absorption tower to ensure that the absorbent can be continuously recycled, effectively reducing the overall operating cost of the system.

[0026] Furthermore, a pumping system is introduced, and when the absorbent reaches a saturated state, the system automatically starts the pumping system. The system uses a high-pressure pump to extract the absorbent from the absorption tower and transport it to the absorbent recycling module 3 through a pipeline.

[0027] Carbon dioxide storage and transportation module 4: It is used to store the captured carbon dioxide in a special storage tank after compression, liquefaction and other processing, so as to facilitate subsequent transportation or utilization. This not only meets environmental protection requirements, but also provides the possibility for the diversified application of carbon dioxide (such as enhanced oil production).

[0028] :Used to control the flow and composition of exhaust emissions to ensure that the exhaust gas emitted by the ship meets environmental standards. The system can be intelligently adjusted according to factors such as navigation status and engine load to achieve emission optimization.

[0029] During implementation, the system is installed on the exhaust gas emission pipeline of the ship engine, and the exhaust gas after combustion is introduced into the intelligent carbon capture unit 2 through the exhaust gas guiding and pretreatment module 1. The liquid absorbent in the absorption tower is fully in contact with carbon dioxide to form carbonate compounds. After multi-stage filtration, the purified exhaust gas can be safely discharged into the atmosphere, and the carbon dioxide is separated and stored in the carbon dioxide storage and transportation module 4.

[0030] When the ship enters a heavy-loaded sailing state, the engine load increases, and the intelligent control unit responds immediately, accurately adjusting the absorbent flow rate to ensure that the capture efficiency is always maintained at the optimal level. On the contrary, when sailing with a light load, by reducing the amount of absorbent and other sophisticated means, unnecessary energy consumption can be effectively curbed to achieve green sailing. At the same time, after the absorbent in the absorption tower reaches the saturated state, it will be automatically transferred to the absorbent recycling module 3 for regeneration, and the regenerated absorbent will re-enter the absorption tower to ensure the recycling of the absorbent and reduce resource consumption. The separated carbon dioxide is liquefied by compression equipment and stored in a carbon dioxide storage tank. When the ship is docked, the stored carbon dioxide can be transferred to a land processing device through a pipeline, or liquefied carbon dioxide can be used for other industrial purposes, such as enhanced oil production.

Claims

1. A marine engine exhaust carbon capture system, characterized in that: include: The exhaust gas guiding and pre-treatment module and the exhaust gas emission pipeline of the ship engine are used to filter the exhaust gas generated by the engine combustion and guide it to the intelligent carbon capture unit; An intelligent carbon capture unit, connected to the exhaust gas guiding and pretreatment module, includes an intelligent control system, an absorption tower and a built-in absorbent specially designed for carbon dioxide, and is used to capture carbon dioxide in the exhaust gas. The intelligent control system monitors the ship's operating parameters in real time, and dynamically adjusts the absorbent flow rate, regeneration speed and exhaust gas treatment volume to achieve optimal carbon capture efficiency and reduce energy consumption; An absorbent recycling module, connected to the intelligent carbon capture unit, is used to regenerate the absorbent in the absorption tower to ensure that the absorbent can be continuously recycled; A carbon dioxide storage and transport module, connected to the intelligent carbon capture unit, for compressing and liquefying the captured carbon dioxide and storing it in a storage tank; The emission control and optimization module is connected to the carbon dioxide storage and transfer module and is used to control the flow and composition of tail gas emissions to ensure that the exhaust gas emitted by the ship meets environmental protection standards.

2. The marine engine exhaust carbon capture system according to claim 1, characterized in that: The intelligent carbon capture unit also includes machine learning technology, which trains models through historical data, predicts the ship's navigation status and engine load changes, and adjusts the capture strategy in advance.

3. The marine engine exhaust carbon capture system according to claim 1, characterized in that: The absorbent recycling and regeneration module also includes a pumping system. When the absorbent reaches a saturated state, the system automatically starts the pumping system, uses a high-pressure pump to extract the absorbent from the absorption tower, and transports it to the absorbent recycling and regeneration module through a pipeline for regeneration.

4. The marine engine exhaust carbon capture system according to claim 1, characterized in that: The intelligent control system also includes sensors for real-time monitoring of ship operating parameters, including engine load, speed, ambient temperature, etc., and dynamic adjustment based on artificial intelligence algorithms.

5. The marine engine exhaust carbon capture system according to claim 1, characterized in that: The carbon dioxide storage and transport module also includes compression equipment and liquefaction equipment for compressing and liquefying the separated carbon dioxide and storing it in a carbon dioxide storage tank.

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