The official inauguration of the world’s largest acid regeneration installation has taken place at the Chinese BAOWU Steel Group’s Shanghai-based subsidiary, Baoshan Iron and Steel, supplied by mechanical engineering group, John Cockerill Industry.

The world`s largest capacity Twin Acid Regeneration Plant (ARP) purifies 2 x 20.000 litres per hour of spent hydrochloric acid (HCl) that is led back into the client’s manufacturing process. According to the latest monitoring data recorded by John Cockerill, it will reduce the plants carbon footprint by 4.8kt per year, and its dust emissions by 25 tons, all while either reducing or eliminating other waste streams, including wastewater and solid hazardous waste.

Located in the client’s flat steel complex in Shanghai, the two ARPs are based on John Cockerill’s fluidized bed (FB) technology, for highest throughput and plant availability, which the company claims provides operator friendliness, as well as a small footprint and easy oxide handling.

According to the company press release, John Cockerill’s acid regeneration plants allow the recycling of close to 100% of the generated spent pickling liquor. Additionally, the tank farm guarantees the management of consumable process chemicals and maximizes operating efficiency, but also minimizes the environmental impact.

“There are many ways towards circular economy in the steel sector, but the fundamental solution lies in technology.”

Mr. Gu, Baoshan Iron and Steel’s project manager

“There are many ways towards circular economy in the steel sector, but the fundamental solution lies in technology.” said Mr. Gu, Baoshan Iron and Steel’s project manager, adding: “This new installation is yet another element to help our Group towards circular economy and tackle climate change. One of the strengths of the acid regeneration process provided by John Cockerill is the environmentally friendly design of the twin plant. Thus, the two highly efficient ARPs allow the recycling of close to 100% of the used hydrochloric acid for reuse in our hot-rolled steel strip manufacturing process.”

''We are proud being able to assist premium steel suppliers like BAOWU to face the ever more stringent environmental policies in their country and to deliver a cleaner and more sustainable steel industry by providing future-oriented high-performance equipment like this Twin ARP installation.”

Isabelle Widmer, managing director of John Cockerill UVK

“John Cockerill’s latest generation of ARPs come with an innovative and environmentally friendly concept, particularly in terms of emissions and waste energy recovery, combined with smart manufacturing and Industry 4.0 technologies. We are proud being able to assist premium steel suppliers like BAOWU to face the ever more stringent environmental policies in their country and to deliver a cleaner and more sustainable steel industry by providing future-oriented high-performance equipment like this Twin ARP installation,” commented Isabelle Widmer, managing director of John Cockerill UVK.