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Processing & Handling

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Facts at your Fingertips: Mixing Intensity in Stirred Tanks

The ability to quantify liquid motion in a stirred tank is a basic step toward understanding how mixing influences process results. Quantifying mixing according to a mixing index (MI) can evaluate and predict mixing intensity related to fluid velocities in…

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Chem Chronicles: The first patent holder in the U.S. was a ‘Pott Ash Maker’

Robert Fulton, Eli Whitney, Thomas Edison, Henry Ford — these are some of the larger-than-life figures who spring to mind when reflecting on the history of innovation and invention in the U.S. But the first person in American history to…

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Using a ‘green’ oxidizer to degrade Kraft lignin into vanillin

The demand for vanillin vastly outstrips the natural resources of this flavoring agent. A chemical process is thus used to produce the required large quantities of vanillin from petroleum, which is far less expensive than obtaining the substance from fermented…

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A customized catalyst for solid-state reactions

Chemists at Hokkaido University (Sapporo, Hokkaido, Japan; www.global.hokudai.ac.jp) and the Institute for Chemical Reaction Design and Discovery have developed what is said to be the first high-performance catalyst specifically designed and optimized for solid-state, mechanochemical synthesis. The new approach was…

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Decarbonizing cement production using solar-thermal energy

Last month, the U.S. Dept. of Energy (DOE; Washington, D.C.; www.energy.gov) awarded $3.2 million in funding for the Solar MEAD project, which aims to decarbonize cement production. This joint project is headed by Cemex, S.A.B. de C.V. (Cemex; Monterrey, Mexico;…

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A new milestone for durable fuel-cell membranes

For the first time, a hydrocarbon-based membrane has passed the performance and durability testing standards set by the U.S. Dept. of Energy (DOE; Washington, D.C.; www.energy.gov) for heavy-duty fuel-cell applications. Typically, membranes in fuel cells are made of perfluorinated materials…

KBR Launches SCOREKlean — a Zero Emissions Olefins Technology

KBR (Houston) announced today the launch of SCOREKlean, a proprietary ethylene and propylene process technology utilizing 100% hydrogen-fueled burners for zero emissions from the ethylene cracking furnaces. By achieving zero emissions from ethylene cracking furnaces, SCOREKlean will play a major…

Canatu increases CNT film production capacity

Carbon nanomaterial developer Canatu Oy (Vantaa, Finland) has upgraded its carbon nanotube (CNT) film manufacturing to meet the rising demand for ADAS heater products in the automotive industry. Canatu has improved its step-and-repeat (SAR) CNT film production line by adding…

Shell Blue Hydrogen Process wins Humber H2ub process design package contract

The international energy company Uniper SE (Düsseldorf, Germany), and Shell UK Ltd. (London), have awarded Shell Catalysts & Technologies a contract to deliver a process design package for the Humber H2ub project, using the Shell Blue Hydrogen Process (SBHP). The…

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This coating boosts the efficiency of perovskite solar cells

Perovskite materials have great potential as a lightweight and low-cost option for solar panels, but in the past have not been seen as stable or durable enough for widespread use in large-scale solar-power installations. Now, a new coating developed by…