The Bintulu LNG complex is located in Bintulu in the Malaysian state of Sarawak. Nine LNG trains are located on one site, all using liquefaction technology and sharing common facilities.

In 2005 the total production capacity of the site was 21.85 million tonnes of LNG per year and eight trains. An extension project was launched to increase the capacity by 1.4 million tonnes per year. The ninth train added an additional 3.6 million tonnes capacity to the complex.

The Royal HaskoningDHV Protected Storage Engineering team provided consultancy services for the basic and detailed design engineering of the civil works and site supervision, for an LNG storage tank as part of the works for the extension to the site. The tank (Tank No 7) was a full containment type for LNG with a capacity of 165,000m³ and became the seventh tank on the site at Petronas LNG complex in Bintulu, Sarawak.

The Protected Storage Engineering team provided consultancy services between 2015 and 2016 for Japanese contractor Sato Kogyo.

Earlier involvement on Sarawak

Royal HaskoningDHV was also involved in the design of a 35,600m³ liquefied butane tank and a 12,700m³ propane tank during the mid-nineties. The cold liquids are stored in steel containments (constructed by Toyo Kanetsu K.K. of Japan).

For safety containment of the liquid storage, Royal HaskoningDHV built concrete structures around the steel containments including reinforced concrete base slabs founded on concrete piles, pre-stressed concrete cylindrical walls, reinforced concrete domes and reinforced concrete platforms on these domes.

Special parameters for the design of the structure were external explosion and earthquake loads as specified by the contractor.

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Jan Janssen

Director Advisory Group Design & Engineering

Nijmegen, NL

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