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Tag: Topsoe

Sulphur Industry News

Saudi Aramco has sold another tranche of 1.54 billion shares, amounting to 0.64% of the company’s total ownership. The sale, at 27-29 riyals per share, was oversubscribed by a factor of five, making it more popular than the previous IPO, in 2019, which sold 1.5% of the company’s shares for a total of $29.4 billion. Foreign take up of shares was also higher this time, with more than half of sales to foreign investors, compared to 23% for the 2019 sale. However, it remains relatively small in scale compared to Saudi Arabia’s ambitions as part of its Vision 2030 plan to encourage more foreign direct investment and wean the country off its dependence on oil. Aramco is the world’s largest oil company in terms of both daily crude production and market cap, and remains 82% in the hands of the government and 16% held via the country’s sovereign wealth fund, the Public Investment Fund (PIF).

A smarter way to treat lean sulphurous off-gases

The implementation of WSA technology to recover sulphur as sulphuric acid from lean sulphurous off-gases offers significant environmental benefits. These include waste reduction, resource efficiency and reduced overall CO2 e footprint, while also producing profitable sulphuric acid. By embracing such practices, industries can ensure improved or better consumption and production patterns and foster a more sustainable and responsible future. J. Feddersen and S. S. Johansson of Topsoe illustrate these benefits using three distinct industrial applications where WSA technology provides a smarter way to treat sulphurous off-gases. It is not only waste stream management in the three cases, but also reduced transportation of chemicals, reduced opex and reduced CO2 e footprint.

Cobalt-molybdenum catalyst activation in low temperature TGUs

Cobalt-molybdenum (CoMo) catalysts are integral components of tail gas units (TGUs), playing a vital role in reducing harmful sulphur dioxide (SO2 ) emissions arising from Claus sulphur recovery units. Effective activation of these catalysts is essential for their optimal performance. The consequence of sulphiding at low temperatures and atmospheric pressure in low temperature TGUs is to compromise effectiveness of catalyst activation. In the final part of this two-part article, Michael Huffmaster , Consultant, presents case study results using a discrete reactor model incorporating heat, mass transfer, and activation reaction kinetics to assess the impacts of these variables on in-bed temperature profile and activation effectiveness. Tailoring gas rate, composition, and temperature progression can achieve in-bed exotherms which improve CoMo catalyst activation effectiveness for low temperature tail gas units.

People

Sasol and Topsoe have appointed Jan Toschka as CEO of the joint venture established by the two companies to develop, build, own and operate sustainable aviation fuel (SAF) ventures and to market the products. Previously Toschka was president of Global Aviation for Shell, responsible for Shell’s global network of operations, joint ventures and sales of fuels, lubricants and sustainable solutions to the aviation industry. During his tenure at Shell, he has led teams across sales, mergers and acquisitions, trading, and retail businesses globally, spanning various industries including Marine and Retail. Toschka will assume his new role as CEO on 1 March 2024 and the joint venture will be launched during the same month. The new company will be headquartered in The Netherlands.