China: Industrial Gases Air Liquide to Build World’s Largest Single ASU for the Steel Industry

Editor: Ahlam Rais

Under a long-term agreement between Air Liquide and Jiangsu Shagang Group, Air Liquide will supply industrial gases to the steel company in Zhangjiagang City, Jiangsu Province, China. In this background, Air Liquide has plans to invest around 118 million dollars for the construction of the mega ASU.

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Air Liquide will build, own and operate a new state-of-the-art ASU with a daily capacity of 3,800 tons of oxygen.
Air Liquide will build, own and operate a new state-of-the-art ASU with a daily capacity of 3,800 tons of oxygen.
(Source: Air Liquide)

Paris/France – Air Liquide and Jiangsu Shagang Group, the largest private steel enterprise in China and one of the top 5 globally, have signed a new long-term agreement for the supply of industrial gases in Zhangjiagang City, Jiangsu Province, China.

Air Liquide will invest around 118 million dollars towards the construction of a world-scale Air Separation Unit (ASU) on the site, where it already operates two other ASUs. Designed to use low carbon energy, this state-of-the-art plant will allow to significantly reduce CO2 emissions over time.

The new ASU will also be a new source of krypton and xenon to address the growing demand of the Electronics industry as well as other air gases for the industrial merchant activity in China.

Under a 20 year-long contract, Air Liquide will build, own and operate a new state-of-the-art ASU with a daily capacity of 3,800 tons of oxygen. It is the largest single ASU for the steel industry in the world, as well as Air Liquide’s largest ASU in China. When the new unit starts up at the end of 2023, it will bring the total installed oxygen capacity to over 8,000 tons per day on the site.

The new ASU is equipped with the proprietary solution Alive an innovation that allows for the storage of up to 60 MW of energy per day, enabling flexibility in the grid and contributing to a higher reliability of gas supply. Replacing old assets installed on the customer site, and using an incremental proportion of low-carbon energy, this new ASU will contribute to a lower carbon footprint for this flagship site, in line with Air Liquide’s journey towards carbon neutrality.

The Zhangjiagang site will also become Air Liquide’s largest liquid oxygen and nitrogen source in China, with its Ultra Purity Oxygen capacity positioning it strategically to support small-and-medium sized customers of liquid and packaged gases, including local hospitals requiring high-purity medical gases, in East China.

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