In the context of the continuous growth of global liquefied natural gas (LNG) trade, the LNG ISO tank, as a standardized liquid storage and transportation equipment that complies with international standards, has become a key carrier connecting the LNG production end and end-users, providing a flexible and reliable landing path for cross-border transportation of small and medium-sized LNG volumes globally.
I. Basic Definition and Industry Position of LNG ISO Tank
The LNG ISO tank is a standardized liquid storage and transportation container manufactured in strict accordance with the relevant specifications of the International Maritime Organization (IMO) and the International Organization for Standardization (ISO), specifically designed for the safe storage and cross-border transportation of liquefied natural gas at -162℃. It is fully compatible with the size specifications of international standard containers. Commonly available models include 20-foot and 40-foot types, and it can directly achieve seamless “door-to-door” transportation via roads, railways, and ocean vessels, without the need to change loading containers during the journey, significantly simplifying the cross-border logistics process of LNG.
Unlike ordinary atmospheric pressure storage tanks, the LNG ISO tank has been fully optimized from the design stage for the characteristics of cryogenic media. It is the most widely used medium-sized and small-scale LNG cross-border transportation equipment in global LNG trade, especially suitable for remote areas without pipeline coverage, small-scale gas usage scenarios, and multi-batch, small-batch cross-border LNG trade.
II. Core Structure and Technical Advantages of LNG ISO Tank
A LNG ISO tank that meets industry standards has a core structure divided into two inner and outer tanks, with a high-performance insulation system in the middle. Every design is centered around the core goal of “maintaining a low-temperature state for a long time and reducing evaporation losses”.
1.Double-layer tank safety structure: The inner tank is made of stainless steel that can withstand low temperatures of -196℃, fully meeting the storage temperature requirements of LNG; the outer tank is made of high-strength carbon steel, providing structural support for the entire container and resisting external impacts during transportation. The space between the two tanks forms a closed insulation zone, fundamentally preventing a large amount of external heat from entering the interior.
2.High vacuum multi-layer insulation technology: This is the core technical highlight of current LNG ISO tanks. By filling multiple insulation materials in the inner and outer tanks’ interlayers and pumping the inner interlayer to a high vacuum state, it significantly reduces heat conduction, convection, and radiation, allowing the tank to maintain a low evaporation rate and a liquid state of LNG for a long time during long-distance transoceanic transportation.
3.Lightweight and large capacity balanced design: Professional low-temperature equipment manufacturing enterprises optimize the materials and conduct structural mechanics calculations to ensure that the tank’s strength fully complies with international standards, reducing the tank’s weight while increasing the effective volume. Compared to traditional products of the same specification, the optimized LNG ISO tank can reduce its weight by over 400 kilograms and increase its effective volume by 400 liters, allowing it to carry more LNG per trip and help customers reduce unit transportation costs.
4.Full-chain international compliance certification: Products manufactured by reputable manufacturers of LNG ISO tanks will simultaneously meet multiple national pressure vessel standards, such as GB150, EN13530, and ASME, and will be accompanied by CSC certificates issued by authoritative classification societies such as Lloyd’s LR, French BV, and China CCS, ensuring that the products can smoothly clear customs, be on the road, and undergo transoceanic transportation in most countries and regions around the world, without being delayed in project progress due to compliance issues.
III. Main Application Scenarios of LNG ISO Tank
With the acceleration of global energy structure transformation, the demand for LNG, as a clean and low-carbon fossil energy substitute, continues to rise, and the application scenarios of LNG ISO tanks are also constantly expanding.
In cross-border LNG small-scale trade, it can directly transport LNG from ports to inland cities without corresponding large LNG receiving stations, providing local industrial boilers and urban gas with supplementary gas sources; in remote mining areas, islands, and other areas where the natural gas pipeline network is completely un-covered, LNG ISO tanks can serve as mobile storage and transportation units, directly providing stable clean energy supply to the local area; in the industrial gas industry, it can also be compatible with the storage and transportation of various low-temperature industrial gases such as liquid oxygen, liquid nitrogen, liquid argon, and liquid carbon dioxide, achieving multi-purpose use and improving the reuse rate of equipment.
In addition, in the supply scenarios of LNG filling stations, LNG ISO tanks can serve as mobile supply carriers, directly replenishing fuel for heavy LNG trucks and inland LNG vessels, significantly reducing the initial construction costs of filling stations, and are highly suitable for layout in the LNG logistics routes that have not yet achieved a scale effect.
IV. Contact Zhuoyue Gas Equipment for Customized Solutions
If you are looking for cost-effective LNG ISO tanks that meet international certification standards, Zhuoyue Gas Equipment has rich experience in the research and manufacturing of low-temperature storage and transportation equipment. It can provide one-on-one customized solutions based on your transportation medium, working conditions, and compliance requirements for the target market. Our full range of LNG ISO tanks have been certified by multiple authoritative classification societies, and you are welcome to leave a message or send an email for consultation to quickly obtain product parameters and the latest quotations.
