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Chemical Engineering

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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…

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,…

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Creating ultrathin gold films with the largest continuous area

Thin gold films offer a broad range of benefits for electronics due to their high electrical conductivity and transparency. Current manufacturing methods are unable to achieve gold films thinner than 10 nm, and are also limited in the area and…

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Flow chemistry yields a more sustainable route to isocyanates

The wide range of performance properties of polyurethane foams makes them essential in many consumer goods. Thus, there is much effort going into creating a more environmentally friendly production process for polyurethane’s main building blocks, polyols and isocyanates. While much…

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Pilot project planned for thermocatalytic ethanol-to-butene process

In December 2024, the Pacific Northwest National Laboratory (PNNL; Richland, Wash.; www.pnnl.gov) announced a three-year collaborative project with vehicle-tire manufacturer Bridgestone (Tokyo, Japan; www.bridgestone.com) to scale up a thermocatalytic process for converting renewably derived ethanol to n-butene. Conventionally, n-butene is…