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Outline of Mizushima LNG terminal and main characteristics of equipment cost reduction.

Author(s) : TADANO K., NUMATA Y., WADA D.

Summary

The Mizushima LNG Receiving Terminal was constructed in the existing refinery to supply natural gas to the power plant and the gas sales companies, and started its operation in April 2006. This terminal has some features for cost reduction. A pressurized cold keeping system for unloading line has been developed to decrease motive energy of LNG pump and the amount of boil off gas generated by LNG pump heat input, by decreasing cold circulation flow rate. Seawater as a heating source for LNG vaporizer is supplied from cooling seawater pipe of the refinery, and cooled outlet seawater is sent back to cooling seawater pipe in refinery for energy integration. To utilize the existing refinery seawater system enables reduction of initial cost by commoditizing seawater intake system and operation cost of motive energy for seawater pump for LNG vaporization. A new type LNG vaporizer (steam ejector type vaporizer), which utilizes steam as a heating source, is adopted as backup vaporizer to keep gas supplying even when the seawater system has trouble. Above technologies have achieved reduced construction cost and running cost with keeping reliability.

Details

  • Original title: Outline of Mizushima LNG terminal and main characteristics of equipment cost reduction.
  • Record ID : 2008-1124
  • Languages: English
  • Source: LNG 15. Proceedings of the 15th International Conference and Exhibition of Liquefied Natural Gas.
  • Publication date: 2007/04/24

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