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Nanoscale particles help produce steam

A research group at Rice University (Houston; www.rice.edu) has developed a method for vaporizing water into steam using sunlight-illuminated nanoparticles, with only a small fraction of the energy heating the fluid. Sub-wavelength metal or carbon particles are intense absorbers of…

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This reactor will produce methanol directly from methane

Under an ARPA contract Gas Technology Institute (GTI, Des Plaines, Ill.; www.gastechnology.org) is developing a process to convert natural gas directly into methanol and hydrogen. The process is much simpler and more efficient than the conventional high-temperature and capital-intensive steam-reforming…

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Improved bioleaching for nickel recovery

An Indian team from the Institute of Minerals & Materials Technology (www.immt.res.in), and Utkal University (both Bhubaneswar, Orissa, India; www.utkal-university.org) has achieved significant improvement in the recovery of nickel from lateritic ore by using oxalic acid produced by the fungus…

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Chementator Briefs  

  Soy polyurethanes Scientists at Battelle (Columbus, Ohio; www.battelle.org) have developed a water-based polyurethane (PU) that uses soy oil instead of petroleum to produce the polyol precursor. Whereas standard water-based PUs require adding N-methyl-2-pyrrolidone (NMP) tolower viscosity, Battelle's process eliminates…

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A low-cost route to ultrathin Pt films

Researchers at the U.S. National Institute of Standards and Technology (NIST; Gaithersburg, Md.; www.nist.gov) have developed a relatively simple, fast and effective method of depositing uniform, ultrathin layers of platinum atoms onto a surface. The technique may lead to a…

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Nanoparticles help generate hydrogen

A research team is using clusters of gold atoms at sub-nanometer sizes to enhance the photocatalytic production of hydrogen from water. Sustainable H2 production from a non-fossil-fuel source could have significant environmental and energy-efficiency benefits. The scientists, from Stony Brook…

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A new photocatalyst for VOC destruction

A process for manufacturing fine particles of titanium dioxide that exhibits a high level of photocatalytic activity has been developed by Showa Titanium Co., a subsidiary of Showa Denko K.K. (SDK, Tokyo; ww.sdk.co.jp). The product has been developed in collaboration…

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December Chementator Briefs

  Rotary atomizer Engineers at Dedert Inc. (Homewood, Ill.; www.dedert.com) have developed a high-speed rotary atomizer for a spray-dryer system that features a motor with permanent rare-earth-metal magnetic bearings. The centrifugal rotary atomizer can achieve peripheral speeds 30 to 40%…

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A boost for bio-butanol production

Lately there has been much renewed interest in fermentative production of n-butanol from renewable biomass as an industrial solvent and liquid fuel superior to ethanol that could be used as a substitute for gasoline. An improved butanol production through the…

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Scaleup for a microbial process that produces acetic acid from offgases

A demonstration plant for the production of acetic acid from the carbon dioxide in industrial offgases will be built at an operating plant of Petronas (Kuala Lumpur; www.petronas.com.my), Malaysia’s national oil company, under an agreement with LanzaTech (Roselle, Ill.; www.lanzatech.com),…