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Chementator Briefs

Biomethane Last month, NextChem, a subsidiary of Maire Tecnimont S.p.A. (Rome, Italy; www.mairetecnimont.com) was awarded a contract by ENGIE subsidiary Storengy (Bois-Colombes Cedex, France; www.storengy.com) to perform an advanced basic-engineering study for a plant that will produce second-generation biomethane from…

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A more-sensitive way to differentiate chiral compounds

Circular dichroism (CD) is the established method for distinguishing between enantiomers — the optical isomers of molecules that are mirror images of each other. In this approach, circularly polarized light is passed through the sample and is absorbed differently by…

Commercial debut for sand-based thermal-energy storage

Last month, operation began at Polar Night Energy Oy’s (Tampere, Finland; www.polarnightenergy.com) first commercial sand-based thermal-energy storage system. The thermal storage system, which is located at the Vatajankoski power plant, is now producing low-emission district heating to the city of…

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Upcycling of waste ABS into 3D-printable material with enhanced properties

In an advancement toward circularity for commodity plastics, researchers at the Oak Ridge National Laboratory (ORNL; Oak Ridge, Tenn.; www.ornl.gov) have developed a method for upcycling the commodity thermoplastic acrylonitrile butadiene styrene (ABS) into an ABS-vitrimer material that can be…

Extending the operating temperature of biological phosphorus removal

Currently, enhanced biological phosphorus removal (EBPR) techniques in municipal wastewater-treatment plants (WWTPs) do not work well at temperatures above 25°C, which is common in warm countries. This limitation is expected to extend to more countries with the advent of global…

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Limpet tooth inspires strongest biomaterial

An interdisciplinary team of biologists, chemists and engineers from the University of Portsmouth (U.K.; www.port.ac.uk) have become the first to successfully grow a limpet-inspired biomaterial with extreme strength. The common limpet (Patella vulgata) is a small, snail-like mollusk with a…

Biosynthesis of renewable, high-energy-density, cyclopropane-based fuels

Cyclopropane-functionalized hydrocarbons can be excellent fuels because of their high energy densities, but organic synthesis of such fuels is difficult. In work recently published in the journal Joule, a research team led by Jay Keasling at the Joint Bioenergy Institute…

‘Symbiotic’ electrolyzer runs on waste heat

A new steam-fed electrolyzer aims to bridge the gap between liquid-water electrolyzers, many of which require exotic materials and intricate membranes, and solid-oxide electrolyzers, which require superheated steam and temperatures as high as 800°C. This ‘symbiotic’ electrolyzer, developed by Advanced…

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Iron catalyst shows promise for improving economics of metathesis reactions

The olefin metathesis reaction produces new carbon-carbon double bonds by swapping the carbon atoms in olefins, and is important for producing a number of chemicals. Currently, the most popular catalysts for this reaction are made from the precious metal ruthenium…

Recycling Portland cement — emissions-free

The production of clinker used for making cement continues to be a major source of global CO2 emissions. Now, three engineers from the University of Cambridge (U.K.; eng.cam.ac.uk) have filed a patent and been awarded new research funding for their…