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Chemical Engineering

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Deepwater RO could cut energy use and environmental impact of seawater desalination

Desalination of seawater with reverse osmosis (RO) membranes is a key technology for addressing water scarcity issues around the globe, but seawater desalination is energy-intensive and the brine discharge can create coastal environmental problems. The company Flocean AS (Oslo, Norway;…

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On-demand ammonia production from atmospheric air

Nearly all ammonia is produced using methane via the Haber-Bosch process, which requires high-temperature and high-pressure operation. A new portable prototype device developed by researchers from Stanford University (Stanford, Calif.; www.stanford.edu) and King Fahd University of Petroleum and Minerals (Dhahran,…

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Business News: February 2025

Plant Watch Messer to construct $70-million air-separation unit in Arkansas January 15, 2025 — Messer Group GmbH (Bad Soden, Germany; www.messergroup.com) has announced a strategic investment of over $70 million to construct a state-of-the-art air separation unit (ASU) in Berryville,…

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Heat Exchange Solutions Support Sustainability in the CPI

Developments in heat exchange technologies promote efficiency, reliability and cost effectiveness in the chemical process industries (CPI) Heat exchange technologies play a pivotal role in industrial sustainability efforts because they are at the forefront of enabling more environmentally friendly chemical…

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Facts At Your Fingertips: Blending and Segregation Mechanisms for Solids

In solids-handling, blending (combining two or more materials to achieve a combined product) and segregation (the separation of particles into distinct zones according to particle size, shape, density or other physical attributes) are competing processes. This one-page reference outlines common…

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Scaling Industrial Decarbonization with Advanced Membranes

The potential of membrane technology to unlock hybrid and scalable carbon capture, combined with results from early field trials, suggest that advanced membranes will play a crucial role in enabling more widespread adoption of decarbonization strategies It is a truth…

AI’s potential in the CPI

One of the aspects of my job that I really enjoy is keeping in touch with new and advanced technologies emerging from the chemical process industries (CPI) — an interest that traces back to my roots as an R&D engineer.…

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Gas-Flow Calculations for Sonic Choking: Revisited

Gas compressibility can lead to choked flow in piping systems. Presented here is an overview of choked-flow geometries in pipes, and examples of how choked flow arises in different pipe layouts The more things change, the more they stay the…

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New sustainable materials from recycled carbon nanotubes

Recycling materials, such as plastics and metals, is an attractive, but challenging path toward sustainable material manufacture. Now, researchers have made a discovery that may have far-reaching implications in material manufacture by positioning carbon nanotube (CNT) fibers as a sustainable…

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Carbon-neutral calcium carbonate process uses emissions from steel-making plant

Construction is imminent for a carbon-capture project aimed at reducing CO2 emissions from steel production while producing carbon-neutral calcium carbonate. At the U.S. Steel (Pittsburgh, Pa.; www.ussteel.com) manufacturing facility in Gary, Ind., a carbon-capture system designed by CarbonFree (San Antonio,…