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Displaying 301 - 320 of 804 stories.
May 15, 2008
The Jiashan Yao-chuang wastewater treatment plant in China’s Zhejiang Province has successfully pilot-tested a three-stage, biologically active reactor system that reduces effluent levels to within the nation’s Class 1A standards. (The standards require < 10 mg/L for biological oxygen demand (BOD), < 5 mg/L for ammonium-nitrogen and < 15 mg/L for total-nitrogen in effluent discharges.)...
http://www.che.com/news/Chementator-A-Wastewater-Treatment-Plant-Passes-Pilot-Test-in-China_3875.html
May 15, 2008
Normally, only the ultraviolet (higher energy) component of the solar spectrum is usable for the photo-catalytic electrolysis of water into hydrogen and oxygen, which takes place in photochemical cells with an anode made of single-crystalline, rutile-type titanium oxide and a platinum electrode. Now, water can be photolyzed into H2 and O2...
http://www.che.com/news/Chementator-This-Catalyst-Helps-Visible-Light-Split-Water-into-H2-and-O2_3876.html
May 15, 2008
Researchers at Oxford Catalysts Ltd. (Oxford, U.K.; edlinks.che.com/7372-534) have shown that the method of preparation — rather than the identity or combination of metals used — has the greatest influence on the performance of hydrodesulfurization (HDS) catalysts. The results of laboratory trials, presented at the annual ACS meeting last month (New Orleans, La.; April...
http://www.che.com/news/Chementator-Improving-the-Performance-of-HDS-Catalysts_3877.html
May 15, 2008
A process in which sulfur is extracted from natural gas in the field and converted to sulfur dioxide, which is then injected into the gas reservoir and reacts with hydrogen sulfide in situ to produce elemental sulfur, has been developed by Black & Veatch (Overland Park, Kan.; edlinks.che.com/7372-535) and Alberta Sulphur Research Ltd. (Calgary, Alta.; edlinks.che.com/7372-536). The partners have formed a...
http://www.che.com/news/Chementator-A-Process-for-Desulfurizing-Natural-Gas_3878.html
May 15, 2008
Verenium Corp. (formerly Celunol; Cambridge, Mass.; edlinks.che.com/7372-537) is starting up a 1.4-million gal/yr demonstration-scale facility at Jennings, La., which will produce ethanol from regional feedstocks (including sugarcane bagasse and specially bred "energy cane") via proprietary cellulosic-ethanol technology. The technology was originally developed at the...
http://www.che.com/news/Chementator-A-Cellulosic-Ethanol-Demonstration-Plant-Enters-Startup-Phase_3879.html
May 15, 2008
Carbone Lorraine (CL; Paris, France; edlinks.che.com/7372-538) is launching a new welded-plate heat exchanger, dubbed Heatex, which features plates made of tantalum CL-Clad. The patented CL-Clad technology involves the brazing of steel onto "reactive" metals, such as tantalum, titanium and zirconium, in order to fabricate columns, reactors and (now) heat exchangers used in corrosive service. Such...
http://www.che.com/news/Chementator-These-Heat-Exchangers-Feature-Tantalum-as-an-Alternative-to-Graphite_3880.html
May 15, 2008
Small-scale chemical producers that use chlorine often rely on larger producers, which sell them the excess Cl2 produced by dedicated chlor-alkali plants. However, such Cl2 supplies are being threatened on a number of fronts, at least in Europe, where new legislation forbidding the import or export of mercury (after 2010) could force older Hg-based chlor-alkali plants to convert to membrane technology or...
http://www.che.com/news/Chementator-A-New-Concept-in-the-Supply-of-Cl2_3881.html
May 15, 2008
A new roll-to-roll manufacturing process promises to overcome the major cost barriers impeding the widespread adoption of high-performance organic light-emitting diodes (OLEDs) for lighting, e-paper and display applications. The culmination of a four-year, $13-million research partnership between GE Global Research (Niskayuna, N.Y.; edlinks.che.com/7372-542), Energy Conversion Devices, Inc. (ECD; Rochester...
http://www.che.com/news/Chementator-Roll-to-Roll-Manufacturing-a-Breakthrough-for-OLED-Commercialization_3882.html
May 15, 2008
Because parts made from boron carbide have a higher rigidity and lower weight compared with those made from silicon carbide and alumina, boron carbide parts are important components for semiconductor manufacturing equipment and other components requiring high-temperature and abrasion resistance, including nozzles, mechanical seals and hard-disc substrates. However, making boron carbide parts with complex...
http://www.che.com/news/Chementator-A-Less-Expensive-Way-to-Make-Boron-Carbide-Components_3883.html
May 15, 2008
Photovoltaics manufacturer Konarka Technologies, Inc. (Lowell, Mass; edlinks.che.com/7372-546) has successfully performed the first use of drop-on-demand inkjet printheads for the fabrication of organic solar cells. Using a Dimatix Materials Printer (DMP) provided by Fujifilm Dimatix...
http://www.che.com/news/Chementator-Printing-Solar-Cells_3885.html
May 15, 2008
BP (London; edlinks.che.com/7372-548) and ConocoPhillips (Houston, Tex.; edlinks.che.com/7372-549) have combined resources to start Denali — the Alaska Gas Pipeline. The pipeline will move approximately 4 billion ft 3 /d of natural gas to markets, and is said to...
http://www.che.com/news/Chementator-Alaskan-Gas_3886.html
May 15, 2008
CLC bio (Aarhus, Denmark; edlinks.che.com/7372-550) and partners from Danish research institutions and crop-enhancing firms have started a project to develop potatoes into a...
http://www.che.com/news/Chementator-Hot-Potatoes_3887.html
May 15, 2008
GEA Procomac, a Division of GEA Niro Inc. (Hudson, Wisc.; edlinks.che.com/7372-551) has received a letter of non-objection from the U.S. Food and Drug...
http://www.che.com/news/Chementator-Aseptic-Filling_3888.html
May 15, 2008
Last month, Henkel KgaA (Düsseldorf, Germany; edlinks.che.com/7372-552) introduced a new conversion coating process called TecTalis, which replaces zinc...
http://www.che.com/news/Chementator-Metal-Pretreatment_3889.html
May 15, 2008
IQTex (Hamburg; Germany; edlinks.che.com/7372-553) has developed a ventilation element — integrated into the soles of shoes — that functions like a flower, which closes up in the rain and...
http://www.che.com/news/Chementator-Smart-Shoes_3890.html
April 15, 2008
Investment, production and consumption of biofuels are booming, thanks mainly to American and European governments’ subsidy and promotion. In part this is driven by fear of environmental enemy number one — global warming. The simple, conventional wisdom is that biofuels have smaller carbon footprints than competing petroleum-based fuels (petrofuels). Yet, as our recent study shows,* the...
http://www.che.com/news/Technology-Showcase-Biofuels-Face-a-Carbon-Certification-Challenge_3788.html
April 15, 2008
  While it may be one of the oldest chemical processes known to mankind, fermentation is getting a high-tech face lift as industrial biotech firms put a fresh spin on the age-old technology in an effort to develop advanced products in a more environmentally friendly and less costly way. "The technology is generally the same — using microbial systems and metabolic fermentation — but by...
http://www.che.com/news/Newsfront-Teaching-an-Old-Dog-New-Tricks_3789.html
April 15, 2008
Last month, the first pilot project that used chilled ammonia to capture carbon dioxide from the fluegas (FG) of a coal-fired power plant started operating at the 1,210-MW We Energies’ Pleasant Prairie power plant in Wisconsin. Alstom (Windsor, Conn.; edlinks.che.com/7371-531) designed, built and will operate the 1.7-MW pilot system, which is part of a cost-sharing partnership of 35 utilities...
http://www.che.com/news/Chementator-An-ammonia-based-CO2-capture-process-moves-several-steps-closer-to-commercialization_3807.html
April 15, 2008
Advanced Diamond Technologies, Inc. (ADT; Romeoville, Ill.; edlinks.che.com/7371-533) has launched a new family of mechanical seals to improve efficiency, save energy and reduce costs in fluid-pumping systems. The patented UNCD (ultrananocrystalline diamond) Seals provide the benefits of a diamond at a cost comparable to silicon carbide face seals, according to ADT, which was formed in 2003 to...
http://www.che.com/news/Chementator-Diamond-may-be-a-pumps-best-friend_3808.html
April 15, 2008
Of all known materials, carbon nanotubes (CNTs) have the highest thermal conductivity and mechanical strength as well as the ability to withstand the highest electric-current density, making them an attractive material for electric wiring, heat dissipation, field electron emission, and other applications. And graphene — a two-dimensional hexagonal lattice of carbon atoms — has become attractive...
http://www.che.com/news/Chementator-This-composite-combines-the-unique-properties-of-two-new-forms-of-carbon_3809.html
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