Tokyo Gas has over 35 years experience in construction, operation, maintenance, technological development and engineering of LNG terminals, include commissioning of the terminal. Before starting operations at an LNG terminal, it is necessary to cool down all LNG facilities in the terminal because of LNG's very low temperature. Drying and purging are also necessary before introducing LNG. The initial cooling down should be performed using the LNG from the first cargo, so the duration of mooring of the LNG vessel considerably affects the expense of commissioning. Commissioning, which includes cooling down, drying, and purging is essential for the safety and reliability of the LNG terminal. Methane release to the air, one of the procedures of commissioning, directly affects the global environment. Based on the knowledge accumulated through Tokyo Gas' own experience, we have established commissioning procedures that are safe, reliable and environmentally-friendly, and are also very efficient, enabling huge cuts in costs and duration. Many new LNG terminals are currently at the planning stage. Commissioning procedures need to be adapted to the particular circumstances of each terminal to meet requirements regarding safety, duration, cost, regulatory compliance, and environment. Tokyo Gas expertise in this area will be extremely useful for assisting newcomers to commission their LNG terminals.
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