Air Liquide starts up the world’s largest oxygen production unit
Air Liquide recently started the world’s largest oxygen production unit for Sasol, an international integrated energy and chemicals company. Air Liquide invested around €200 million1 for the construction of this Air Separation Unit (ASU) in Secunda, with a total production capacity of 5,000 tonnes of oxygen per day (equivalent to 5,800 tonnes per day at sea level). Owned and operated by Air Liquide, it is the first ASU that Sasol has chosen to outsource to a specialist of industrial gas production at this site. Located in Sasol’s Secunda site (around 140 km East of Johannesburg), the new ASU supplies Sasol with large quantities of oxygen used for production of fuels and chemicals.
The start-up of the air separation unit represents a new milestone in the partnership between Air Liquide and Sasol which brings to 17 the number of ASU’s delivered by Air Liquide over the last 40 years, with a total oxygen production capacity greater than 45,000 tonnes per day. It is also the first time ever at Secunda, that Sasol has chosen to outsource an oxygen supply contract, thus recognizing Air Liquide’s expertise in the field of oxygen production and underscoring the importance of this long-term relationship.
The unit was designed and built by Air Liquide’s Engineering & Construction team using leading edge technologies that meet the highest standards of safety, reliability and efficiency, while increasing production capacity. The ASU's design is based on Air Liquide’s proprietary technologies including several first of its kind innovations in the air compression process, which allow for an annual electricity consumption reduction of more than 20%, contributing to reducing the customer’s carbon footprint.
As scheduled, the new ASU has been completed in less than three years from design to commissioning. This ASU also provides Air Liquide with a new source of liquid gases to supply the growing industrial gas market in South Africa.
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