LNG Cold Energy Utilization
Capture LNG regasification cold energy for carbon capture applications
Overview
LNG Cold Energy for CO2 Liquefaction
LNG regasification releases significant cold energy that is typically wasted. IsoTES® captures and stores this cold energy using specialized cryogenic storage materials, then delivers it for CO2 liquefaction in carbon capture applications. This innovative approach creates value from waste cold energy while supporting decarbonization efforts.
Background & Challenges
Background
Significant Cold Energy Potential
- Some countries consume a huge amount of LNG. For example, Korea is consuming 127,000 ton or 280,000 m³ LNG every day
- As the temperature of LNG is around -160°C, there is substantial potential to use the cold energy from the consumed LNG
- For example, if the cold energy from the LNG that Korea is daily consuming is used for CO2 liquefaction, 250,000 ton CO₂ can be liquefied every day, corresponding to 14% of the Korea's total CO₂ emissions
- There are a number of applications of LNG cold energy utilization other than CO2 liquefaction
Challenges
Load Balancing Difficulty
- However, the cold energy from LNG has not been utilized actively because it is not easy to balance the thermal loads between the cold energy production (LNG vaporization) and cold energy utilization (CO2 liquefaction)
Solution and Values delivered by IsoTES®
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The IsoTES® can store the cold energy from the LNG vaporization process and releases it to the CO2 liquefaction process, playing the cold energy buffer and separating the load change of the two processes
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Even in case one of the two process is shutdown, the other process can operate without any load change for a long period, typically 5 hours
How It Works
HTS-IsoTES® cold energy storage system for LNG vaporization and CO2 liquefaction
Key Values
Features and benefits of this solution
Key Features
- Cryogenic cold energy capture
- Specialized low-temperature storage
- CO2 liquefaction system integration
- Continuous cold supply capability
Benefits
- Utilize otherwise wasted cold energy
- Reduce energy costs for CO2 liquefaction by 60%
- Enable efficient carbon capture and storage
- Create new revenue streams from LNG operations
Technical Highlights
Engineering details and specifications
Ethanol-based cryogenic TESM
Insulated storage system design
Heat exchanger optimized for CO2 phase change
Status & Plan
GIGAette and KAIST is building a lab test facility with 1 ton/day CO2 liquefaction capacity. Here, liquid nitrogen (LN2) will be used to simulate LNG
After this, a pilot project will be launched to utilize the cold energy from LNG
Related Technology
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Ready to Get Started?
Let us help you implement LNG Cold Energy Utilization with IsoTES® technology.