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New boiler fuels from oil, coal and biomass wastes

Composite liquid and slurry boiler fuels have been produced from mixtures of various waste materials, such as biomass, coal- and crude-oil-processing residues, wood and other combustible substances, in a collaboration between researchers at the University of Rhode Island (Kingston, R.I.)…

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Scale up planned for a new CO2-capture process

Plans are underway to field-test a process that removes more than 90 % of the carbon dioxide from power-plant flue gas, while reducing both the energy input and operating costs by 50 % compared to conventional amine-based CO2-scrubbing technology. The…

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Membrane reactor may reduce wastage of natural gas

A small-scale ceramic membrane reactor to convert natural gas to transportable liquids in a single step is being developed by Ceramatec, Inc. (Salt Lake City, Utah; www.ceramatec.com) under a $1.7-million grant from the U.S. Dept. of Energy’s Advanced Research Project…

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Using sunlight to incorporate CO2 into alpha-amino ketones

The research group of Masahiro Murakami at Kyoto University (Kyoto, Japan; www.sbchem.kyoto-u.ac.jp/murakami-lab) have synthesized a promising pharmaceutical precursor using only sunlight (as energy source) and CO2 (as co-reagent). The solar-driven process involves two consecutive reactions (diagram): first, light transforms an…

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A starch-based cationic polymer for oil recovery

Cationic polymers have been used in the petroleum industry as shale-control agents, demulsifiers, blocking agents, and filtrate reducers for drilling fluids, but process complexity and high cost have limited their application. Now researchers from Zhejiang Normal University (Jinhua; www.zjnu.edu.cn) and…

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A step towards artificial photosynthesis

A photocatalyst that reduces CO2 into carbon monoxide is being commercialized by Tokyo Chemical Industry Co. (Tokyo, Japan; www.tcichemicals.com/en/jp/index.html). Developed by Osamu Ishitani and his research group at Tokyo Institute of Technology (TiTech; Japan; www.chemistry.titech.ac.jp/~ishitani/index-jp.htm), the catalyst is a step…

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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…