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Integrated AC process eliminates refrigerants

With the goal of decreasing the climate impact of residential air conditioning (AC), Kraton Corp. (Houston; www.kraton.com) has developed the NexarCool technology in collaboration with Texas A&M University (College Station; www.tamu.edu), India Institute of Technology Bombay (www.iitb.ac.in) and Indian companies…

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Chementator Briefs

Sludge to fuel Bio-sludge is a byproduct of the wastewater treatment process at Stora Enso Oy’s (Helsinki, Finland; www.storaenso.com) Heinola fluting mill in Finland. In the past, the mill had been burning the bio-sludge at the power station for generating…

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Bottom-up synthesis of new perovskite material for ammonia production

Perovskites are a class of synthetic materials that have a crystalline structure similar to that of the naturally occurring mineral calcium titanate. They have been the subject of many studies because they exhibit unique properties that can be tuned according…

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Metals from nodules on seabed offer environmental advantages

Small-scale pilot testing has begun for a process that extracts nickel, manganese, cobalt and copper from nodules collected from the surface of the Pacific Ocean seafloor. Obtaining the metals from the seabed nodules has advantages over mining land-based ores because…

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New material promises to enhance performance of gas-separation membranes

Harnessing its polymer technology and carbon-fiber expertise has enabled Toray Industries, Inc. (Tokyo, Japan; www.toray.com) to create a porous carbon fiber with uniformly continuous pores (diagram) — claimed to be a world’s first. Using this fiber as a support layer…

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A Pt-free electrode promises to cut costs for fuel cells and metal-air batteries

Hiroya Abe and colleagues at Tohoku University (Sendai, www.tohoku.ac.jp) and Hokkaido University have developed a method to fabricate a highly active catalyst electrode for performing the oxygen reduction reaction (ORR) in fuel cells and metal-air batteries. Currently, such fuel cells…

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Chementator Briefs

Direct route to PG Dow Inc. (Midland, Mich.; www.dow.com) and Evonik Industries AG (Essen, Germany; www.evonik.com) have entered into an exclusive technology partnership to develop a new process to make propylene glycol (PG). The key to the so-called Hyprosyn process…

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Pursuing methanation as a means to recycle CO2

By the end of fiscal 2019, commissioning and continuous operation will begin on a new methanation plant that will produce 8 Nm3/h of methane from CO2 and H2. The test facility, located at the Koshijihara Plant of Inpex’s Nagaoka Field…

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Lower-cost engineered composites for transportation infrastructure applications

Engineered cementitious composites (ECCs) are concrete-like materials with exceptional ductility (up to 500 times) and flexural strengths (2–3 times) greater than conventional concrete. The flexibility and strength of ECCs could benefit transportation infrastructure (for example, the ductility of ECCs could…

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Geothermal brine may be a new U.S. source of lithium

Currently the U.S. has only one domestic source of lithium, a vital element in lithium-ion batteries and other products, but this could be changed through processes being developed by two California companies. Furthest along is a project of EnergySource Minerals…