Industrial engineering firm SIAD Macchine Impianti (SIAD MI), part of the SIAD Group, has installed a reliquefaction plant at the Port of Ravenna for the boil-off gas (BOG) at the small-scale LNG (ssLNG) terminal
The installation is at the 20,000m3 LNG storage facility owned by Depositi Italiani GNL, which began operations last month. Edison will supply the terminal using a 30,000m3 small-scale natural gas tanker.
During transfer operations, liquid methane partly vaporises and passes from the liquid state to the gaseous state, namely BOG, which is first compressed and then reliquefied to be reintroduced into the storage tanks.
The reliquefaction plant developed by SIAD MI will enable it to treat 1,100 kg per hour of methane for 26 tonnes per day of recondensed gas, making it possible to exploit LNG supplies with considerable savings in the long term.
SIAD MI also designed and supplied four BOG compressors which are oil-free and with ATEX certification for installation in potentially explosive atmospheres. Of these four compressors, two will work at the service of the plant for the reliquefaction of the evaporated gas and the other two will manage the gas boil-off during LNG transfer operations from the LNG carrier to the storage facility.
The plant design and construction work by SIAD MI began in August 2019 and was completed in 11 months. In addition to delivery, installation, testing, and commissioning of the plant and compressors, SIAD MI will continue with the plant’s operation and remote monitoring, using the latest technology systems.
Riviera Maritime Media will be hosting the LNG Ship/Shore Interface Conference in London, UK 6 December 2021 - use this link to access more information and register to attend or exhibit at the event
Events
© 2026 Riviera Maritime Media Ltd.