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,…
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…
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…
The guidance provided here can help to mitigate problems occurring in pumping systems used for condensate recovery Condensate recovery is crucial to energy reduction and water conservation in a steam-using plant. It reduces effluent discharge and treatment requirements, as well…
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…
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…
Designing a storage vessel for your plant requires a methodical approach. This article outlines six steps to follow in designing, installing and starting up a storage vessel that successfully handles your bulk material under your operating conditions. Have you experienced…
BASF SE (Ludwigshafen) and thyssenkrupp Uhde GmbH (Dortmund, both Germany) achieved measurable improvements in the STAR process, a proprietary dehydrogenation process from thyssenkrupp Uhde that can produce propylene from propane feedstocks, or iso-butylene from iso-butane feedstocks. The technology has been…
Air Products (Lehigh Valley, Pa.) has awarded thyssenkrupp nucera AG & Co. KGaA (Dortmund, Germany) the supply of its alkaline water electrolysis technology for a 10 metric ton per day facility to produce green liquid hydrogen in Casa Grande, Arizona.…
SSAB (Stockholm, Sweden), LKAB (Luleå, Sweden) and Vattenfall (Solna, Sweden) are joining together in a demonstration project called HYBRIT, to replace coal-based blast furnaces with direct hydrogen-based reduction technology. The HYBRIT initiative aims to demonstrate a complete industrial value chain…