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Nanoscale uniformity of desalination membranes

Reverse-osmosis (RO) desalination membranes use a polyamide selective layer formed on a microporous support to separate water molecules from salts. Past efforts to characterize the polyamide membrane structure have been limited by the internal variability of the selective layer. Now,…

A microreactor for continuous formation of Grignard reagents

Today, synthetic routes to about 10% of the top 50 active pharmaceutical ingredients (APIs) include one or more Grignard reactions, which are used to form C–C bonds. Normally, the reaction is performed batch-wise in continuous stirred-tank reactors (CSTRs), with Grignard…

A major project targets sustainable urea production

A consortium, led by the Netherlands Organization for Applied Scientific Research (TNO; The Hague; www.tno.nl), has received an exceptional grant of €21 million from the European Commission under the Horizon 2020 Framework Program to investigate and develop the potential of…

Bacteria for wastewater treatment

Researchers from the National University of Singapore (www.nus.edu.sg), led by associate professor He Jianzhong, have found a new strain of bacterium called Thauera sp. strain SND5, which is capable of simultaneous nitrification and denitrification and phosphate removal from wastewater. The…

Magnetic field cures adhesives faster with less energy

Conventional adhesives, such as epoxy, are designed to cure using moisture, heat and light. Curing is necessary to cross-link and bond the glue with the two secured surfaces as the glue crystallizes and hardens. Now, scientists from Nanyang Technological University…

Plant Watch: February 2021

Plant Watch Linde to build world’s largest PEM electrolyzer in Germany January 14, 2021 — Linde plc (Guildford, U.K.; www.linde.com) will build, own and operate the world’s largest proton-exchange membrane (PEM) electrolyzer plant at the Leuna Chemical Complex in Germany.…

Process for recycling of cotton garments produces multi-ton quantities for testing

A process developed by Evrnu (Seattle, Wash.; www.evrnu.com) to regenerate cotton fibers from waste fabric and post-consumer garments has been used to produce ton quantities of recycled cotton fiber for testing. An economically viable process for recycling cotton would have…

Membrane-based system for low-cost CO2 capture to be demonstrated at engineering scale

A new membrane technology for separating carbon dioxide from exhaust gas will be scaled up for real-world testing under a project to evaluate low-cost CO2 capture at a coal-fired power plant. Design and testing of an engineering-scale CO2-capture system will…

Storing excess electricity as high-temperature heat

Late last November, the energy-transition start-up company Lumenion GmbH (Berlin, Germany; www.lumenion.com) received the 2020 Berlin Brandenburg Innovation Prize for its high-temperature, steel-based energy-storage technology. The system stores peaks of wind and solar energy by heating a steel core to…

New Ways to Achieve Better Control of Emissions

New and improved catalysts and other process innovations are helping the chemical process industries (CPI) to control emissions As long as fossil fuels are used for combustion processes — not only in power plants, but also furnaces in the glass…