Safe transportation of LNG is paramount therefore the tankers that transport it are double-hulled and specifically designed to handle the low temperature of LNG.
Currently, more than 136 ships world-wide transport in excess of 120 million metric tonnes of LNG annually to global locations. The majority of conventional LNG tankers have a capacity in the region of 130-150,000 cubic metres.
LNG tankers – safety design
- LNG ships are rigorously built for safety.
- There has been no loss of life, or significant spillage incident in more than 33,000 voyages.
- LNG ships are constructed with a double hull which provides protection for cargo in the event of a collision, grounding, and from radiant heat.
- Cargo tanks are located away from the hull.
- Gas detectors and safety alarms are situated between the steel hulls, and continuously monitor for cargo leaks.
Qatari LNG is transported to the South Hook Terminal by a purpose-built fleet of 14 brand vessels with double membranes on the LNG tanks and double hulls for additional safety and cargo protection. These Korean-built vessels are known as Q-Flex and Q-Max LNG ships.
Q-Max
- Q-Max ships have been commissioned with a designed capacity of about 260,000 cubic metres. At over 340m, the Q-Max vessels are longer than three full-size football pitches.
- Pride of the fleet Q-Max ‘Mozah’ (as featured in the video below)
- Designed for base-load transport to UK/US – a ‘floating pipeline for LNG’.
Q-Flex
- A designed capacity of about 215,000 cubic metres
- As the name implies, designed for maximum capacity whilst allowing flexible deliveries around the world
- Currently 20 terminals worldwide ready to accept the Q-Flex vessels
The Q-Flex ships have approximately 50% more cargo capacity than conventional LNG carriers, and the larger Q-Max vessels have over 80% more cargo capacity. Thanks to economies of scale and engine efficiency, the ships require approximately 40% less energy per unit of cargo and have 25-30% lower CO2 emissions compared to conventional tankers.
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