Large-Scale CO2 Hydrate Capture Device with Deep-Sea Simulation
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Solution Overview
Problem
Current carbon capture and utilization technologies face challenges such as high energy consumption, technical complexity, corrosion issues, and limited industrial application, particularly in the hydrate separation process, which hinders large-scale industrialization and efficient CO2 capture and sequestration.
Innovation Solution
A fully automated large-scale integrated device for CO2 capture, sequestration, and utilization is developed, incorporating a gas compression system, liquid injection system, hydrate generation and decomposition system, refrigeration circulation system, cold and energy storage system, sequestration simulation system, automatic control system, and seawater desalination system, enabling continuous and efficient CO2 capture and utilization through hydrate technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional carbon capture methods (chemical absorption, physical absorption) are used, then CO2 capture efficiency is improved, but energy consumption increases and equipment corrosion occurs
Solution Approach 1:
The patent utilizes the phase transition of CO2 between gaseous and hydrate states to achieve separation and capture. By controlling temperature and pressure conditions, CO2 transitions to form hydrates, enabling efficient capture without the high energy consumption and corrosion issues of traditional chemical absorption methods
Solution Approach 2:
Water acts as an intermediary substance in the hydrate formation process. CO2 combines with water to form hydrates, enabling indirect capture that avoids direct contact between CO2 and corrosive chemical agents, thus reducing equipment corrosion while maintaining capture efficiency
2Use of energy by moving object
If hydrate separation process is used, then energy consumption is reduced and no secondary pollution is produced, but hydrate generation is slower and separation is harder
Solution Approach 1:
The system performs preliminary cooling of the CO2 stream before hydrate formation to pre-establish optimal temperature conditions. This preliminary action accelerates the subsequent hydrate generation rate while maintaining the low energy consumption and clean process benefits
Solution Approach 2:
The patent implements dynamic control of temperature, pressure, and flow rates during the hydrate formation process. By continuously adjusting these parameters based on real-time conditions, the system optimizes hydrate generation speed while maintaining efficient energy utilization and avoiding secondary pollution
3Reliability
If hydrate technology is applied at laboratory scale, then CO2 capture and utilization is achieved, but industrialization is rare and scale-up is limited
Solution Approach 1:
The industrial system is divided into multiple modular units including compression modules, hydrate formation modules, separation modules, and utilization modules. Each module can operate independently and be scaled according to production requirements, making the complex industrialization process manageable and adaptable
Solution Approach 2:
The system is designed with multi-functional capabilities that can handle CO2 capture, sequestration, and utilization through a single integrated platform. This universal design reduces the need for separate specialized equipment, simplifying industrial implementation while maintaining reliable CO2 capture and utilization effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device achieves high-efficiency CO2 capture with low energy consumption, real-time monitoring, and automated processes, supporting different purification modes and simulating deep-sea conditions for CO2 sequestration, while also facilitating seawater desalination, thus addressing the limitations of existing technologies.
Implementation Method 1
The hydrate method of carbon capture technology utilizes the principle that binary and multiple gases generate hydrates with a large gap in phase equilibrium, so that gases that are more likely to form gas hydrates enter the hydrate phase, while gases that are difficult to form gas hydrates are retained in the gas phase, thus realizing the separation of mixed gases
Implementation Method 2
The refrigeration circulation system comprises a first refrigeration unit 17, a second refrigeration unit 22, a pipeline XIII and a pipeline XVII
Implementation Method 3
the gas compression system comprises an air compressor 1, a gas mixture tank 2, electric valves 5, check valves 6, gas booster pumps 7, high-pressure buffer tanks 8
Data Source
AI summary
The present invention belongs to the application field of hydrate technology, and discloses a large-scale integrated device of CO2 capture, sequestration and utilization and method. The device separates and purifies CO2 in a forward or reverse way; at the same time, it is configured with a storage simulation system to store the purified CO2; the system is configured with an axial pressure and circumferential pressure system, which can simulate the pressure environment of the deep-sea ocean and provide experimental support for the storage of CO2 in the deep-sea; and the device is reserved for the interface of seawater desalination system module, which can provide an experimental environment for the desalination of seawater by the hydrate method. Finally, the device is equipped with a cold storage system to realize the secondary utilization of energy from industrial high temperature exhaust gas.