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October 1, 2010
Last month at the IFAT Entsorga trade fair (September 13–17; Munich, Germany), Süd-Chemie AG (Munich; www.sud-chemie.com) introduced a chemical-free process that increases the energy production of wastewater-purification and biogas plants by as much as 30% while significantly reducing the disposal costs of sewage treatment plants. The electrokinetic disintegration process exposes biological...
http://www.chemengonline.com/chementator/Electric-fields-boost-energy-production-and-cut-operating-costs-of-sewage-and-biogas-plants_6027.html
October 1, 2010
Improved C5 use Some 106,000 ton/yr of so-called spent C5 fraction is generated at Mitsui Chemicals Inc.’s (Mitsui; Tokyo, Japan; www.mitsuichem.com) naphtha cracker at its Chiba Factory. Presently, the company is selling about half of the C5 fraction (50,000 ton/yr) — after partial hydrogenation — to Idemitsu Kosan Co. (Tokyo) for gasoline production, and the remainder is burned as fuel...
http://www.chemengonline.com/chementator/October-chementator-briefs_6053.html
September 1, 2010
Codexis (Redwood City, Calif.; www.codexis.com) and CO2 Solution (Quebec City, Canada; www.co2solution.com) have jointly developed a cost-effective method for capturing carbon dioxide from coal-fired power plants. Solvent-based systems for capturing CO2 are relatively well-understood, but they have not been widely deployed because they are energy-intensive and inefficient. Solvent-based approaches involve...
http://www.chemengonline.com/chementator/Enzyme-based-method-could-make-CO2-capture-economically-viable_5939.html
September 1, 2010
A magnetic composite based on reduced graphene oxide (RGO) has been developed by a Korean team with an exceptional capacity to remove arsenic from drinking water. The team, headed by professor Kwang S. Kim from the Center for Superfunctional Materials, Dept. of Chemistry, Pohang University of Science and Technology (www.postech.ac.kr), South Korea, claims the composite can achieve nearly complete removal...
http://www.chemengonline.com/chementator/An-attractive-way-to-remove-arsenic-from-water_5940.html
September 1, 2010
An enhanced reactor technology that boosts the speed of producing bioethanol by a factor of four while decreasing production costs by 25% compared to a stirred batch fermenter has been developed by IHI Corp. (IHI; Tokyo; www.ihi.co.jp). The technology features a cohesive strain of yeast to increase the number density of microorganisms in the reactor, and utilizes the flow created by the carbon...
http://www.chemengonline.com/chementator/A-more-efficient-less-expensive-way-to-continuously-make-bioethanol_5941.html
September 1, 2010
Professor Kazuaki Ishihara and colleagues at Nagoya University (Nagoya, Japan;www.nubio.nagoya-u.ac.jp/indexe.HTM) has discovered an efficient, chiral, salt-based hypervalent iodine catalyst that could replace toxic metal catalysts without generating the waste or explosion risks associated with hypervalent organo-iodine complexes. The researchers took the radical step of swapping iodine bonded to carbon...
http://www.chemengonline.com/chementator/A-new-iodine-based-catalyst-for-asymmetric-synthesis_5942.html
September 1, 2010
Photovoltaic cells typically operate at 20% efficiency in converting solar energy to electricity. A new system that could boost the efficiency to as much as 60% by combining the light and heat of solar radiation is being developed at Stanford University (Palo Alto, Calif.;www.stanford.edu). Standard silicon solar cells have two limitations, says Nick Melosh, an assistant professor of materials science and...
http://www.chemengonline.com/chementator/Heat-plus-light-may-boost-solar-energy-efficiency_5943.html
September 1, 2010
A metal membrane system developed by Eltron Research and Development (Boulder, Colo., www.eltronresearch.com) separates hydrogen from mixed-gas feed streams that result from gasification, steam reforming and petrochemical processes. Based on a proprietary, dense metal alloy with hydrogen permeability that is coated on both sides with catalyst material, the membrane can be used as a carbon capture method...
http://www.chemengonline.com/chementator/This-membrane-system-extracts-hydrogen-from-mixed-gas-streams_5944.html
September 1, 2010
Roughly 80% of the heavy oil in Alberta’s oil sands is too deep for open-pit mining, the most common production method at present. Consequently, this oil will have to be recovered by in situ methods, such as steam-assisted gravity drainage (SAGD), whereby steam is injected underground to liberate the bitumen, which is pumped out through a producer well. Each barrel of oil produced requires 3–4...
http://www.chemengonline.com/chementator/A-promising-way-to-reduce-the-cost-of-producing-oil-from-oil-sands_5945.html
September 1, 2010
TNO (Delft; www.tno.nl) and Ingrepro Renewables B.V. (Borculo, both the Netherlands; www.ingrepro.nl) have started a joint-research project to extract food ingredients from algae. Proteins, which account for up to 60 wt.% of algae, could serve as a sustainable alternative...
http://www.chemengonline.com/chementator/Food-from-algae_5946.html
September 1, 2010
Professor George John and graduate student Swapnil Jadhav at the City College of New York (www.ccny.cuny.edu) are lead authors of a paper on a class of compounds, known as phase-selective gelators, that can selectively solidify an oil phase in water. These gelator compounds may serve as the basis for next-generation efforts in...
http://www.chemengonline.com/chementator/Sugar-derived-compounds-can-be-model-solidifiers-for-oil-spills_5947.html
September 1, 2010
  Worlds largest PDH unit Lummus Technology (Bloomfield, N.J.), a CB&I company (The Woodlands, Tex.; www.cbi.com), has been awarded a contract by Tianjin Bohua Petrochemical Co. for the license and engineering design of a grassroots propane dehydrogenation (PDH) unit to be built in Tianjin, China. It will be the first PDH plant in China, and upon startup in 2012, will be the largest PDH plant in...
http://www.chemengonline.com/chementator/September-chementator-briefs_5948.html
August 1, 2010
Dow Water and Process Solutions (DW&PS; Minneapolis, Minn.; www.dowwaterandprocess.com), a business unit of The Dow Chemical Co., unveiled a simplified electrodeionization (EDI) product at the recent Singapore International Water Week event. The new version of the product reduces operating costs for industrial water treatment by up to 15% compared to its predecessor. The Dow Electrodeionization 310...
http://www.chemengonline.com/chementator/Simplified-electrodeionization-technology-reduces-operating-costs_5872.html
August 1, 2010
Calsmelt Pty Ltd. (Melbourne, Australia; www.calsmelt.com) is marketing a new carbothermic process for producing metallic aluminum. Tradenamed Thermical, the process is said to entail significant advantages over Alcoa’s carbothermic process, the Advanced Reactor Process (ARP). Under development for several years, carbothermic technology aims to eventually displace the standard Hall-Héroult...
http://www.chemengonline.com/chementator/This-new-process-promises-substantial-savings-for-aluminum-production_5873.html
August 1, 2010
A process that promises a significant reduction in the cost of removing sulfur from coal-derived synthesis gas (syngas) will be tested in a 50-MWe demonstration unit at Tampa (Fla.) Electric Company’s 250-MWe integrated gasification-combined cycle (IGCC) power plant. RTI International (Research Triangle Park, N.C.; www.rti.org), the developer of the technology, has awarded a contract for front-end...
http://www.chemengonline.com/chementator/High-temperature-process-cuts-the-cost-of-syngas-cleanup_5874.html
August 1, 2010
A next-generation, carbon-enhanced membrane-bioreactor (MBR) system improves treatment of industrial wastewater with high organic content and containing compounds that resist microbial breakdown. The system allows economic reuse of wastewater or discharge to meet stringent environmental standards. The new MBR, dubbed EcoRight, will be commercially available in early 2011. First envisioned by Saudi Aramco...
http://www.chemengonline.com/chementator/Membrane-bioreactor-technology-improves-treatment-of-high-organic-content-water_5875.html
August 1, 2010
Last month, Pittsburgh Iron Oxides, LLC (Pirox; New Brighton, Pa.; www.piroxllc.com) was granted U.S. patent No. 7,744,848 for its process of producing high-purity magnetite (Fe3O4). The company produces synthetic magnetite, tradenamed SuperMagnetite, which has greater than 99% purity and exhibits a unique combination of magnetic properties (such as remnance, saturation and, coercivity) that are derived...
http://www.chemengonline.com/chementator/A-new-production-route-to-high-purity-magnetite_5876.html
August 1, 2010
Flyanic LLC (Newark, N.J.; www.flyanic.com) has developed an industrial-scale and economical process for grinding cement, flyash and other cementitious materials to a median particle size of 1 micron, making them suitable for use in concrete and mortar. For example, flyash and slag ground less than 10 microns are highly reactive pozzolans for...
http://www.chemengonline.com/chementator/Size-reduction-of-cementitious-material_5877.html
August 1, 2010
The research group of Kazuo Tajima at Kanagawa University (Yokohama, Japan; apchem2.kanagawa-u.ac.jp) have developed a new emulsification process that enables biodiesel fuels (BDFs) to be used without any purification process, thereby reducing production costs by one fourth. Tajima estimates that the process...
http://www.chemengonline.com/chementator/Super-emulsion-slashes-biodiesel-production-costs-by-25-percent_5878.html
August 1, 2010
Researchers at the Fraunhofer Institute for Mechanics of Materials (IWM; Halle, Germany; www.fraunhofer.de) have developed ceramic membranes with uniform pore structure and tight pore-size distribution, which makes them more stable and delivers considerably higher...
http://www.chemengonline.com/chementator/Nanopores-improving-sterile-filtration_5879.html
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