Products & Solutions / Gas and Process Solutions / Flexible Gas and Process Solutions
Flexible Gas and Process Solutions
In more than three decades, Atlas Copco has built a wealth of experience in the LNG market. The company is a true LNG pioneer and remains as one of the strongest innovators in the market. When the tanker “Venator” took to the sea in 1973, it carried an LNG compressor built by Atlas Copco.
In 2000, then, when the world’s first on-board reliquefaction system was introduced on the “Jamal” vessel, Atlas Copco compressors and expanders were once again the “heart of the plant.” And in 2003, Atlas Copco realized a pilot project for marine specialist Hamworthy KSE off the coast of Norway, installing a machine that merges compressor and expander functionalities – the Compander.
The keys to it all are simple: When Atlas Copco develops its LNG solutions, it draws from broad and thorough know-how in engineering customized machines for the petrochemical and chemical industries, as well as air separation and cryogenic applications. Around the globe, more than 400 boil-off and vapor-return compressors are running aboard of LNG vessels. In fact, more than 50% of the world’s LNG fleet is equipped with customized compressors from Atlas Copco.
Atlas Copco Gas and Process
is currently the only manufacturer to offer the inherent mechanical simplicity of integral-gear technology in a complete range of multi-stage compressor-expander generator packages. Multi-staging, with up to four stages (two per pinion), is a uniquely effective configuration in energy recovery and process control applications. Take an inside look at the Atlas Copco solutions that help you meet your LNG needs – and future challenges.
L/D Compressor, Single-Stage / Two-Stage (Multi-Stage)
- Single-stage: used to transfer Natural Boil-Off Gas (NBOG) and Forced Boil-Off Gas (FBOG) to the main boiler.
- Multi-stage: used to supply NBOG from cargo tanks to Duel-Fuel engines, while maintaining constant absolute cargo tank pressure with respect to the compressor output pressure.
BOG Compressor
- Used to supply NBOG from cargo tanks to the reliquefaction plant maintaining constant absolute cargo tank pressure & gas pressure for the cold box of the reliquefaction plant.
H/D Compressor, Single-Stage
- Used to re-circulate hot LNG vapor to warm-up cargo tanks, to return generated LNG vapor back to shore during loading, and for initial cool down.
Nitrogen Compander
- Used for the cold production inside the NBOG reliquefaction plant.
L/D and HD Gas Heater
A direct steam-heated horizontal shell and tube gas heater that is employed for heating up Boil-Off Gas delivered by Low-Duty or High-Duty Compressors during warm-up.
LNG Vaporizer
- Used to supply vapor to the cargo tank during discharging and purging of inert gas.
- Can ensure the nitrogen supply to tanks when receiving liquid nitrogen from ashore and as an emergency spare for the Forcing Vaporizer.
Forcing Vaporizer
- Employed to supply vapor to the main boiler plant in case of a low boil-off rate.
- Marine Air Booklet (5951 kB, Pdf document) - Download
