Thin-film polymer membranes have been very effective for industrial-scale desalination of seawater, but have not been used for separation of liquid hydrocarbon mixtures because oil-separation membranes tend to absorb oil components and swell, which eliminates their size-sieving ability to separate…
Operations are planned to start up soon at a first-of-its-kind recycling demonstration plant in Monthey, Switzerland. Employing a proprietary reaction technology developed by DePoly S.A. (Sion, Switzerland; www.depoly.co), the plant is set to treat up to 500 tons/yr of polyethylene…
As industries and consumers have shown an increasing preference for water and oil repellents that do not include any fluorinated materials, significant efforts and years of research and testing have gone into developing non-fluorinated alternatives. AGC Chemicals Americas, Inc. (AGCCA;…
Safe and cost-effective storage represents one of the major hurdles in the widespread adoption of “clean” hydrogen in energy applications. A hydrogen-storage approach called cryo-compression is being poised as a bridge between high-density (but expensive) hydrogen liquefaction and cheaper (but…
A proprietary molten-salt electrolysis (MSE) process originally designed for battery manufacturing has now been re-optimized for North America’s first operational cobalt-refining plant. The DirectPlateTM MSE technology developed by Xerion Advanced Battery Corp. (Kettering, Ohio; www.xerionbattery.com; see Direct molten-salt electroplating cuts…
Biogas — produced from anaerobic digestion of organic matter — contains a mixture of gases, with methane and carbon dioxide as the predominant components. To use biogas as a fuel source, purification of the gas is typically needed to remove…
Researchers from the Lawrence Berkeley National Laboratory (Berkeley, Calif. www.lbl.gov), along with a host of collaborators, have made progress on an artificial photosynthesis system that converts CO2 into ethane and ethylene using nanostructured copper and perovskite. In a recent publication…
The ability to economically produce large scales of graphene will help to enable many high-performance applications, from smart packaging materials and medical devices to safer gas storage. A new process demonstrated at Southwest Research Institute (SwRI; San Antonio, Tex.; www.swri.org)…
One method used to deliver drugs in a controlled manner is to encapsulate them in an injectable gel. Microgels — hydrogel particles made of synthetic or natural polymers with a high water content that measure about 1 to 100 micrometers…
Recycling vehicle tires is complicated because the rubbers used (including butadiene and polyisoprene) are highly cross-linked, and because pyrolysis-based recycling of the rubbers generates environmentally hazardous compounds like benzene and dioxins. Now, researchers at the University of North Carolina at…