On July 3rd, as the construction of the domes was completed for the five largest liquefied natural gas (LNG) tanks in the world, the main structure of China National Offshore Oil Corporation"s (CNOOC) Jinwan "Green Energy Port" Phase II project in Zhuhai was finished.

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Once completed, this project will significantly enhance the peak shaving and supply capabilities of natural gas in the Guangdong-Hong Kong-Macao Greater Bay Area and the southern region of China.

Located in the Jinwan District of Zhuhai City, Guangdong Province, the Jinwan "Green Energy Port" Phase I project was put into operation in 2013, with an annual processing capacity of 3.5 million tons of LNG. The Phase II project, a critical infrastructure project for China"s petroleum and natural gas industry, commenced construction in June 2021. It includes supporting facilities and five LNG tanks, each with a storage capacity of 270,000 cubic meters, making them the largest LNG tanks in the world.

The 270,000 cubic meter LNG tanks used in the project were designed with independent core technology by CNOOC"s CGTank. Each tank reaches a height of 65.7 meters, equivalent to the height of the Beijing National Stadium "Bird"s Nest." One tank can accommodate three C919 passenger planes.

The construction work of the Jinwan "Green Energy Port" Phase II project is enormous, with a concrete volume of 45,000 cubic meters per tank, which is enough to fill 20 standard Olympic swimming pools.

The project is located in an area with high seismic design requirements, making it one of the LNG storage tank projects with the most complex geological conditions and the most challenging earthquake resistance design. Despite all these difficulties, the project team managed to complete the construction of five extra-large storage tanks within a span of only 18 months.

The Phase II project is expected to be completed and put into operation in 2024. By then, the Jinwan "Green Energy Port" will become the largest natural gas storage and transportation base in the southern region of China, with an annual processing capacity of up to 7 million tons, equivalent to approximately 10 billion cubic meters of natural gas. This capacity will enable the generation of around 50 billion kilowatt-hours of electricity while reducing carbon dioxide emissions by 33.52 million tons, equivalent to planting 70 million trees.

5座全球最大液化天然气储罐“落户”珠海

7月3日，随着5座全球单罐容量最大的液化天然气储罐完成穹顶浇筑作业，中国海油金湾“绿能港”二期项目实现主体结构完工，该项目建成后，将大幅提升粤港澳大湾区和华南地区的天然气调峰保供能力。

金湾“绿能港”位于广东省珠海市金湾区高栏港，一期项目于2013年投产，液化天然气年处理能力为350万吨，二期项目是国家石油天然气基础设施重点工程，于2021年6月开工建设，同时建设5座世界单罐容量最大的27万立方米液化天然气储罐及配套设施。

项目采用的27万立方米全球最大LNG储罐，由中国海油CGTank储罐核心技术自主设计，单个储罐高度达65.7米，相当于国家体育馆“鸟巢”的高度，内部可同时叠放3架C919客机。

金湾“绿能港”二期项目工程量巨大，单罐混凝土浇筑量45000立方米，可以填满20个标准奥运游泳池。

项目所在区域内地震设防等级高，是目前国内地质条件最复杂、抗震设计难度最大的液化天然气储罐工程之一。项目团队仅用18个月就完成5座超大型储罐主体工程建设。

据了解，二期项目预计2024年建成投产，届时金湾“绿能港”将成为华南地区规模最大的天然气储运基地，年处理能力可提升至700万吨，折合气态天然气约100亿立方米，可发电约 500亿千瓦时，可实现减排二氧化碳3352万吨，相当于植树7000万棵。(更多新闻资讯，请关注羊城派 pai.ycwb.com)

文 | 羊城晚报全媒体记者 李旭译 | 刘佳慧

来源 | 羊城晚报·羊城派责编 | 戚美青