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Chementator briefs

NITROGEN UTILIZATION Late March, the first nitrogen fertilizer produced from a wastewater-treatment plant sidestream was delivered to a farm in Sweden. The fertilizer was produced at a pilot plant that began operation last December at Ragn-Sells Högbytorp’s (www.ragensells.se) wastewater-treatment and…

A new burner slashes NOx emissions from iron-ore pelletizing plants

Before being fed to the blast furnace, iron ore is first converted into pellets by, for example, a traveling-grate (TG) pelletizing plant. In this plant, so-called green pellets are conveyed through a furnace that heats the pellets to high temperatures…

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Growing sulfur batteries from crystals

Strain on demand for critical battery metals is forcing manufacturers to seek alternative materials. Sulfur’s high thermal stability and abundance are making it a promising emerging battery material. A new class of solid-state lithium-sulfur batteries developed by Theion GmbH (Berlin,…

SAF Production Expands for a Low-Carbon Future

To lower their climate impact, petroleum refiners are increasingly assessing greenhouse-gas-emission intensities as they consider processing lower-carbon feedstocks. One area of particular activity is sustainable aviation fuels (SAF), where demand growth is accelerating While the oil-and-gas industry has been on…

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Catalyst-coated membrane reduces electrolyzer stack cost for H2 production

A new catalyst-coated membrane (CCM) technology for hydrogen production, developed by Honeywell UOP (Des Plaines, Ill.; uop.honeywell.com), is undergoing performance validation testing in partnership with manufacturers of proton-exchange membrane (PEM) and anion-exchange membrane (AEM) electrolyzers. Made from both proprietary UOP…

Commercial debut for a process that makes ‘green’ pig iron

Last month, Vale S.A. (Rio de Janeiro, Brazil; www.vale.com) began construction on the first commercial plant to use its Tecnored process, which produces pig iron with biomass instead of metallurgical coal (coke). Located in Marabá, in the southeast of Pará,…

PFAS separation-concentration system introduced in North America

A technology initially developed in Australia by OPEC Systems (Emu Plains, NSW, Australia; www.opecsystems.com) for separating and concentrating per- and polyfluoroalkyl substances (PFAS) in a range of water applications has now been introduced in North America. The technology, known as…

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Applying capacitive deionization for critical-metals recovery

Researchers at Argonne National Laboratory (Lemont, Ill.; www.anl.gov) are investigating an electrochemical separation process known as capacitive deionization (CDI; diagram) to extract and recover ions from liquid streams in wide-ranging applications, including battery recycling and biomanufacturing. CDI holds several advantages…

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Reduced fouling when pneumatically conveying lactose products

To ensure product safety and quality, products containing lactose (at dairy plants, for example) are processed under hygienic conditions. These strict hygiene conditions require frequent cleaning of pneumatic transport systems — typically every eight weeks. This procedure is both labor-intensive…

Capillary-fed electrolysis unlocks new levels of efficiency for green-hydrogen production

A new category of electrolysis could significantly lower the expenses associated with producing “green” hydrogen. In the new capillary-fed electrolyzer cell — designed by Hysata (Wollongong, Australia; www.hysata.com) based on research from the University of Wollongong (www.uow.edu.au) — water is…