KBR designs and builds customised phosphoric acid purification plants tailored to the individual demands of clients. Christopher Heikkilä, KBR’s Business Development Manager, outlines the process design requirements and the challenges associated with impurities removal.
Addressing the ‘leaky’ nature of nitrogen fertilizers is a longstanding priority for growers, fertilizer producers and retailers alike. Dr Karl Wyant, Nutrien’s Director of Agronomy, examines the valuable role enhanced efficiency fertilizers (EEFs) can play in improving nitrogen use efficiency.
Anton Kariagin and Stefan Gebert of Clariant discuss the benefits and commercial performance of the new low temperature shift (LTS) catalyst – ShiftMax 217 Plus. A case study demonstrates the benefits of this catalyst, providing ultra-low methanol formation resulting in increased ammonia production and/or energy savings.
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.
Falling volumes of sulphur from refining and sour gas could turn Europe into a sulphur importer.
Already the world’s largest exporter of sulphur, Abu Dhabi continues to expand its sour gas production and sulphur output.
Cobalt-molybdenum catalysts are integral components of tail gas units, playing a vital role in reducing harmful sulphur dioxide emissions arising from Claus sulphur recovery units. Effective activation of these catalysts is essential for their optimal performance. In the first part of this two-part article, Michael Huffmaster, Consultant, explores CoMo catalyst activation at low pressure, focusing on sulphiding reaction pathways and the impact of temperature and the composition of the sulphiding media on reaction kinetics.
The cadmium and heavy metal content of sedimentary phosphates are of great concern. This has seen industry raw material consumption shift towards igneous phosphates or the blending of phosphate rocks from different sources. While rock blending can successfully reduce the heavy metal content of superphosphates, it needs to be accompanied by careful process adjustments, as Ian Hancock , Bradley Pulverizer’s vice president sales & operations, explains.
Honeywell UOP’s nViro Hydro process provides an alternative solution to conventional hydroprocessing waste treatment. Benefits include creating a new revenue stream and reduced capital outlays, operating expenses and water use.
TOYO’s digital twin concept combines its unique digital twin at both the project execution stage and the commissioning stage, and when used in conjunction with its proprietary process simulator it can predict the whole plant lifecycle.