Tag: Construction

Ineos subsidiary Inovyn has announced the permanent closure of its ‘sulphur chemicals’ (mainly sulphuric acid) plant at its Runcorn site, and its withdrawal from the UK sulphur chemicals market. The company said in a statement that the decision follows a management review of the business in the light of recent events. Specifically, in October 2020, an unexpected interruption to the third-party power supply to the Runcorn site resulted in the plant being taken offline, and during restart, it was identified that a number of critical plant components had suffered significant damage. As a result, to ensure the safety and integrity of the plant it was taken back offline. Since then, in spite of significant effort and investment to rectify these issues, Inovyn says that it has become clear that it will not be possible to safely restart the plant for at least a further 18-24 months, and the company has decided to close the plant permanently.

Phosphogypsum is finding increasing use in plaster and cement manufacture, roadbed construction and afforestation. We look at how previously unwanted solid waste generated by the phosphate industry is being turned into a valued resource.

From new materials of construction and improved equipment designs to the latest digital tools, Casale, thyssenkrupp Industrial Solutions, Saipem, TOYO and Stamicarbon report on some of their latest achievements.

M. Baerends of Fluor reports on the conception, engineering, construction, commissioning and start-up of a new sulphuric acid plant that replaced an existing acid plant at a European sour gas processing terminal. This highly complex gas processing facility handles sour gas from an off-shore field, containing H2 S that must be removed to meet transmission grid specifications. Various issues encountered, their resolution by the joint owner, Fluor and Topsoe team, and plant operating results are discussed.

Demand for nickel sulphate is expected to rise rapidly this decade to feed increased battery production for electric vehicles. At the same time, diminishing sources of high grade nickel ores are leading to a renewed focus on high pressure acid leaching (HPAL) of laterite ores, with a significant impact on sulphur and sulphuric acid demand.

Storm Uri which blanketed the southern states of the US with snow, and led to widespread power outages in Texas, has had a major impact upon US Gulf Coast and Southern-Midwest refined products supply. Most Gulf Coast refineries were shut down or forced to operate at reduced rates. IHS Markit estimated that more than 5.2 million bbl/d of Gulf Coast capacity and 730,000 bbl/d in PADD 2 was impacted by the winter weather at its height, and close to 20% of lower 48 US natural gas production was shut-in in the first half of February. A drop in crude oil production of between 2.2 and 4 million bbl/d was estimated.

All acid towers eventually require replacement. In this article, K. Sirikan, A. Mahecha-Botero et al of NORAM Engineering and Constructors Ltd discuss two recently executed acid tower replacement projects. The first project involved the replacement of a brick-lined tower by an alloy acid tower for a sulphur burning plant in North America. The second project involved the replacement of a brick-lined acid tower with a NORAM designed brick-lined tower for a smelter off gas acid plant in South America. The impacts of various design considerations on acid tower replacement projects are compared, including in-situ replacement versus a new location; brick-lined versus alloy shell, and selection criteria for mist eliminators.

During the 10th Russian Corporate Governance Forum, Andrei Guryev, PhosAgro’s CEO and a member of the company’s board, was declared the winner in the category: “Contribution to the Development of ESG Culture”. PhosAgro’s Corporate Secretary, Sergey Samosyuk, was named the winner in the category “Corporate Governance Director/Corporate Secretary”.

Copper major Freeport-McMoRan is reportedly on verge of finalising a $2.8 billion deal with China’s Tsingshan to build a copper smelter in Weda Bay, Indonesia. The Indonesian government said that the companies were aiming to conclude negotiations by the end of March. It also said that most of the financing will be borne by Tsingshan, with Freeport possibly only needing to provide funding for 7.5% of the total project cost. The smelter would have a copper concentrate input capacity of 2.4 million t/a.

The United States has imposed duties on Russian and Moroccan phosphate imports.