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Manage emergency LNG shutdowns at KLAW’s Gastech stand

Wed 08 Aug 2018 by Mike Corkhill

Manage emergency LNG shutdowns at KLAW’s Gastech stand
The emergency release system shown here is part of the KLAW SILSIS system that is in place at the Micro LNG terminal in Jamaica’s Montego Bay

KLAW LNG will provide a unique insight into delivering SIL2-compliant LNG hose transfer operations on their exhibition stand at the Gastech 2018 event, to be held in Barcelona 17-20 September. A safety integrity level (SIL) rating is a measure of a safety system’s performance. 

Visitors to the stand will gain hands-on experience of managing an SIL2-compliant LNG transfer and an understanding of the ESD1 and ESD2 sequence in an emergency shutdown procedure. In the ESD1 part of the procedure the cargo transfer operation is stopped in a quick and controlled manner, while in the rapid follow-up ESD2 phase the emergency release system is activated.

KLAW LNG states that its safety integrated level safety instrumented system (SILSIS) is the world’s first SIL2-compliant automated system specifically designed for managing LNG transfers and emergency situations in flexible hose operations.

The inaugural system was commissioned at the Micro LNG terminal in Jamaica’s Montego Bay in October 2016 and has since been operational with frequent ship-to-shore flexible hose transfers of LNG from the 6,500-m3 Coral Anthelia to the cylindrical storage tanks utilised by the JPS Bogue power station.

SILSIS provides continuing system diagnostics, both before and during LNG transfers, along with monitoring operations and complete control over ESD1 and ESD2 procedures and black box records of transfer data. It also ensures the LNG transfer operation is always maintained at SIL2, is highly ‘available’ and in a ‘ready for transfer’ condition.

KLAW LNG’s Julian Fairman commented “To be SIL2-compliant, operations and procedures must also maintain SIL2 compliance over the operational life of the system. The SILSIS terminal on the KLAW LNG stand at Gastech will also demonstrate the system’s ability in meeting this crucial aspect of functional safety for the process industry sector.

“SILSIS is a fully-automated, programme logic-controlled system and removes many human elements from the transfer process. This maximises cost-efficient availability.”

Mr Fairman concluded “SILSIS offers minimal operational disruption by being able to proof test and diagnose issues without the need for invasive inspection. In addition, its easy-to-use, real-time interface ensures that operators can follow systematic procedures without the risk of distraction.”

In addition to SILSIS, KLAW LNG will also be exhibiting its full range of LNG safety-critical transfer systems at Gastech. The range includes ship-to-ship, ship-to-shore and bunkering operations from small to large scale, and the latest in small island and scalable bunkering applications.

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