A method for the purification of single-walled carbon nanotubes (SWNTs) in four sequential steps — oxidative pretreatment, acid treatment, silica dissolution, and froth flotation — has been proposed by a team from the Petroleum and Petrochemical College, Chulalongkorn University (Bangkok,…
Researchers from the University of Glasgow (U.K.; edlinks.chemengonline.com/7368-539) have designed a device that can detect pollutants, then generate its own electricity to power an early warning system. The self-powered sensor consists of a biosensor with genetically engineered microbes. When the…
Last month, the European Parliament (Brussels, Belgium) approved a new air-quality directive, which sets, for the first time, binding standards for fine particles. The directive on air quality is one measure outlined in the 2005 Thematic Strategy on air pollution…
Gulf Ethanol Corp. (Houston, Tex.; edlinks.chemengonline.com/7368-541) recently acquired an exclusive license to the vortex-implosion-disintegrator technology developed by Meridian BioRefining (Dallas, Tex.). This high-velocity, high-pressure process can turn biomass into an easily processable cellulose powder in 5 – 10 s. The…
UOP LLC (Des Plaines, Ill.; edlinks.chemengonline.com/7368-542) has partnered with the University of Southern California’s (USC) Loker Hydrocarbon Research Institute (Los Angeles; edlinks.chemengonline.com/7368-543) to develop and commercialize new technology to transform carbon dioxide into clean-burning alternative fuels. USC developed fundamental chemistry…
Animal and vegetable oils and fats are a key renewable feedstock for making detergents, soaps, lubricants, paints, coatings, cosmetics and pharmaceuticals, as well as additives for plastics, rubber and textiles. However, a consequence of the current EU renewable-energy policy is…
At Pollutec 2007 (Paris, France; November 27 – 30), Veolia Water Solutions & Technologies (Paris, edlinks.chemengonline.com/7368-531) introduced the next generation of its Actiflo clarifier process for potable and process water — Actiflo Turbo. Like its predecessor, the patented Actiflo Turbo…
Toyo Engineering Corp. (TEC; Narashino, Japan; edlinks.chemengonline.com/7368-532), Modec Inc. (Tokyo, both Japan) and Velocys Inc., (Plain City, Ohio) have agreed to jointly develop a commercial gas-to-liquid (GTL) plant to be installed on a mobile platform or ship for monetizing small-to-medium…
At the Chem Show last month (New York; Oct. 30 – Nov. 1), Resodyn Acoustic Mixers Inc. (Butte, Mont.; edlinks.chemengonline.com/6902-531) demonstrated its new, impeller-free mixing technology, which induces microscale turbulence through the propagation of acoustic waves. Dubbed ResonantAcoustic Mixing (RAM),…
A pressure-swing-adsorption (PSA) system for hydrogen purification that operates at "tens of cycles per minute," versus one cycle every 4 – 10 min for conventional PSA, will have its first commercial-scale demonstration at an ExxonMobil refinery in France. Developed by…