Latest News: Technologies
Chementator: A new feedstock for carbon and graphite electrodes: coal
A less-expensive way of making the raw materials for carbon anodes (for aluminum smelting) and graphite electrodes (used to make steel in electric arc furnaces) has been developed by West Virginia University (UWV; Morgantown, W.Va.; www.wvu.edu). The conventional starting materials…
Chementator: Toxic plant yields a potential skin protector
Milkweed, a plant that is toxic to farm animals and other creatures, may be a future source of a base material for sunscreen and other skin care products. Milkweed is harvested for floss, used as a hypoallergenic filler for pillows…
Chementator: Using the sun to keep Australians cool
CSIRO Energy Technology (Newcastle, New South Wales, Australia; www.csiro.au) is developing a solar-powered air conditioning unit for residential use, using a desiccant-evaporative process to provide cool and dehumidified air. Thermally driven ab- or adsorption chillers are commonly used to provide…
Chementator: Photocatalysts for decomposing VOCs
A photocatalyst that is more active for decomposing volatile organic compounds (VOCs) with visible light than existing catalysts has been developed by researchers from the New Energy and Industrial Technology Development Organization (NEDO; Kawasaki City, Japan) in a project lead…
Chementator: Eni orders world’s largest reactors
Last month, GE Oil & Gas (Florence, Italy; www.ge.com/oilandgas) received a contract to supply Eni S.p.A. (Rome; www.eni.it) with the largest refinery reactors of their type ever to be manufactured. GE Oil & Gas’ components-production facility in Massa, Italy, will…
March Chementator Briefs
Bioethanol Ethanol from plant and forestry waste and dedicated energy crops could replace approximately one-third of U.S. gasoline requirements by 2030 on a sustainable basis, according to a study by Sandia National Laboratories (Livermore, Calif.; www.sandia.gov) and General Motors Corp.…
Chementator: Progress on a promising separation technology
For separating two components with similar volatilities, extractive distillation is typically used, whereby a high-boiling, non-volatile solvent is added to "break the azeotrope" — a process that is both energy intensive and often involves the use of hazardous solvents. In…
Chementator: Sonicating slurries speeds soil remediation
Ultrasound has been applied, with limited success, for the remediation of contaminated soil. Up to now, the approach has been to first extract the contaminant from the soil into a liquid, which is then passed through a sono-reactor where the…
Chementator: A sound way to reuse low-temperature waste heat
In a so-called thermoacoustic engine, researchers from the Energy Research Center of the Netherlands (ECN; Petten, Netherlands; www.ecn.nl) have achieved a record efficiency in the conversion of heat to sound, improving the existing record of 41% to 48% of the…
Chementator: Commercialization nears for producing cartenoids from engineered yeasts
In late 2009, Microbia PE, Inc. (Lexington, Mass.; www.microbia-pe.com) will begin commercialization of its initial carotenoid products. Microbia plans to produce β-carotene, astaxanthin, zeaxanthin, cathaxanthin and lutein — all five carotenoid products that currently have significant commercial value. These carotenoids…