Mobile Navigation

Chemical Engineering

Improve Energy Efficiency Using Expanders

Expanders can take advantage of pressure reductions to drive rotating machines. Information on how to assess the potential benefits of installing expanders is provided here Often in the chemical process industries (CPI), “a considerable amount of energy is wasted in…

Direct metal conversion streamlines cathode-material supply chain

As application demands evolve, battery materials have gotten more complex, incorporating not only lithium, but higher nickel, manganese and cobalt content, while also including various dopants like aluminum or zirconium and stabilizing coatings. Processing all of these disparate components into…

Operational Best Practices for Rotary Dryers

To maximize the service life and reliability of rotary dryers for solid materials, adhere to this set of practices Rotary dryers have a well-deserved reputation for reliability, often providing decades of trouble-free operation in solids-handling processes. As with any type…

Recycling electrolyte from vanadium RFBs

U.S. Vanadium LLC (Hot Springs, Ark.; www.usvanadium.com) has successfully demonstrated the ability to recycle the liquid electrolyte used in vanadium redox-flow batteries (VRFB), a rapidly growing commercial technology that promises to enable intermittent renewable energy technologies, such as solar and…

Thermal-energy storage system can decarbonize industrial heat

A closed-loop, long-duration energy-storage system (diagram) developed by Malta, Inc. (Cambridge, Mass.; www.maltainc.com) could provide a carbon-neutral path to industrial heating. “One of the exciting facets of this technology is that it generates a lot of discharge heat. When we…

Methane-pyrolysis process leverages natural gas for CO2-free H2 generation

Engineering design of a demonstration plant is underway for a process that pyrolyzes natural gas into hydrogen and solid carbon. The process was developed by C-Zero Inc. (Goleta, Calif.; www.czero.energy), a company set up in 2018 to develop and commercialize…

New crushing station makes its commercial debut in Brazil

Last month, Amarillo Gold Corp. (Toronto, Canada; www.amarillogold.com) selected Metso Outotec’s (Helsinki, Finland; www.mogroup.com) modular FIT Station for its Posse Gold greenfield mining project in the state of Goiás in central Brazil. This will be the first commercial installation of…

Chementator briefs

L-Alanine DMC Biotechnologies, Inc. (DMC; Boulder, Colo.; www.dmcbio.com) has successfully demonstrated full commercial scale (85 m3) fermentation for its first product, the amino acid L-alanine. The scaleup results identically tracked the performance at bench and pilot scales, further validating the…

Engineering catalysts with ALD

Atomic-layer deposition (ALD), a surface engineering technique that applies layers of coatings in a conformal way at single-atom thicknesses, is being investigated for its potential to improve the selectivity and durability of industrial catalysts under a U.S. Dept. of Energy…

Piezoelectric wood

Researchers at the Swiss Federal Laboratories for Materials Science and Technology (Empa; Dübendorf; www.empa.ch) and ETH Zurich (both Switzerland; www.ethz.ch) have made wood compressible and turned it into a piezoelectric generator. The research, reported last month in the journal Science…