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A new support for biofilters

Researchers from the Environmental Biotechnology Cooperative Research Center (Sydney and Perth, Australia; www.ebcrc.com.au) have developed a new way to harness bacteria to biodegrade odor-causing substances. Traditional biofilters typically employ compost supported on wood chips to trap the odor-producing substances, and…

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Using gold to catalyze oxidation reactions

Polymer-supported nanoclusters of gold have recently been shown to catalyze the oxidation of alcohols to ketones at room temperature in air by the research group of chemistry professor Shu Kobayashi, University of Tokyo (www.chem.s.u-tokyo.ac.jp), in a project supported by Japan…

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Scaleup is set for an air-separation membrane

The Electric Power Research Institute (EPRI, Palo Alto, Calif.; www.epri.com) has signed an agreement with Air Products (Allentown, Penn.; www.airproducts.com) to support the company’s development of a ceramic ion transport membrane (ITM) for air separation. The membrane is being tested…

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A less-expensive way to make platinum catalysts

The cost of producing platinum catalysts could be reduced by up to 90% by a process being developed jointly by Lawrence Livermore National Laboratory (LLNL, Livermore, Calif.; www.llnl.gov) and Stanford University (Stanford, Calif.; www.stanford.edu). The process involves the deposition of…

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Extracting drinking water from humidity

An energy-autonomous process for capturing air humidity for drinking water has been developed by scientists at the Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB; Stuttgart; www.fraunhofer.de) and Logos-Innovationen GmbH (Bodnegg, both Germany; www.logos-innovationen.com). The concept is suitable for supplying…

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This photocatalyst works with visible light

A photocatalyst that uses visible light to deodorize and disinfect air has been developed by Hiroshi Taoda at the Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology, Chubu, Nagoya, (AIST; Chubu, Nagoya, Japan; www.aist.go.jp).…

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A direct coal-liquefaction process goes commercial…

The world’s first commercial plant to produce liquid fuels by direct coal liquefaction is now being started up in Majata, Inner Mongolia, by Shenhua Group (Beijing). Designed to produce 25,000 bbl/d of syncrude from 4,300 metric tons per day (m.t./d)…

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Add CaC2 to improve the efficiency of steelmaking furnaces

An innovation that improves the steelmaking efficiency of an electric arc furnace (EAF) by adding calcium carbide to the process has been developed by NuFlux, LLC (Warren, Ohio), a producer of steelmaking fluxes, and Carbide Industries LLC (Louisville, Ky.; www.carbidellc.com),…

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A one-step process for extracting oil from algae…

Algae offer a ubiquitous, renewable source of oil for fuels and various chemical products ( CE, September 2008, pp. 22–25), but the extraction of oil from the algae cells is an energy-intensive process that involves dewatering and drying the biomass,…

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A shocking way to compress CO2

Compressing carbon dioxide captured from power plants to 1,500–2,200 psia for pipeline transmission or underground injection is a challenge that requires eight stages or more, using conventional compressors. A compressor that promises to do the job in two stages, for…