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Tag: Construction

Successful start-up of a new WSA plant

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.

Sulphur Industry News

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.

A tale of two acid tower systems

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.

Sulphuric Acid News

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.

Sulphuric Acid News

Norilsk Nickel has finally closed down its nickel smelting operation at Nikel in Russia’s Murmansk region; the company’s oldest still operating production facility. The shutdown is part of the company’s environmental programme, which aims to significantly reduce its environmental impact at all production sites. The Nikel closure will eliminate SO2 emissions in the cross-border area with Norway, which had become a major bone of contention with the Norwegian government. Norilsk aims to reduce SO2 emissions at Kola by 50% by the end of 2020 and 85% by the end of 2021, and is modernising its production in Monchegorsk, including the construction of new state-of-the-art facilities.