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Displaying 341 - 360 of 810 stories.
March 15, 2008
Fuel cells and hydrogen economy are inevitably used in the same breath when talking about clean power and ways to wean us from our addiction to carbon-based fuels. That’s because H2 -based fuel cells make electricity and heat with only water in the exhaust. Unfortunately, realistic assessments of the current situation conclude that it will be awhile — perhaps decades — before hydrogen...
http://www.che.com/news/Newsfront-Fuel-Cells-Move-into-the-CPI-Plant_3717.html
March 15, 2008
On January 31, 2008, law firm Chadbourne & Parke LLP held its "Nanotechnology, Law & Commerce" forum exploring "Business at One-Billionth of a Meter." A total of 18 invited speakers explored a variety of topics including the current state of nanotech R&D; public policy, politics and legal issues; the financing and underwriting of nanotech; and "nanoethics." George...
http://www.che.com/news/Newsfront-Forum-Makes-a-Big-Deal-about-Nanotech_3718.html
March 15, 2008
Synfuels International, Inc. (Dallas, Tex.; edlinks.che.com/7370-561) plans to commercialize its patented gas-to-liquids (GTL) process in Kuwait through a newly formed partnership with Kuwait’s Aref Energy Holding (edlinks.che.com/7370-562). In contrast with Fischer-Tropsch technology, the process produces a high-octane gasoline blend, rather than waxy paraffins for diesel fuel. Within two years, the...
http://www.che.com/news/Chementator-Methane-to-gasoline-process-nears-commercialization_3735.html
March 15, 2008
Next month, Taiyo Kagaku Co. (Yokkaichi, Japan; edlinks.che.com/7370-563) will start up a 20-m.t./yr plant — said to be the world’s first — for the production of mesoporous silica. Taiyo Kagaku developed the new production process based on technology first introduced by Toyota Central R&D Laboratories, Inc. (Aichi, Japan; CE, April 2004, p. 17). The commercial grade mesoporous silica...
http://www.che.com/news/Chementator-A-commercial-debut-for-a-process-to-make-mesoporous-silica_3736.html
March 15, 2008
The Seebeck effect — the direct conversion of a temperature difference to electricity — is responsible for the operation of thermocouples. But taking advantage of this phenomenon to make electricity from waste heat in so-called thermoelectric (TE) devices has been hindered by the high cost or toxicity of common TE materials, such as lead-tellurium or cobalt-antimony. And up to now, production...
http://www.che.com/news/Chementator-A-new-Mg2Si-production-process-promises-to-advance-thermoelectric-devices_3737.html
March 15, 2008
The standard way to test for toxicity in individuals who have been exposed to heavy metals is to take a blood sample and analyze it in the laboratory by plasma mass spectrometry, an expensive and time-consuming procedure. Now, a portable instrument that can do the same job in the field in 2 – 5 min, for one-tenth the cost, has been developed at Pacific Northwest National Laboratory (PNNL, Richland...
http://www.che.com/news/Chementator-A-portable-analyzer-for-toxicity-in-humans_3738.html
March 15, 2008
Although nanoporous silica membranes are promising systems for the molecular separation of gases and liquids, they lack microstructural stability in the presence of water at temperatures as low as 60°C. Prolonged exposure to water causes hydrolysis, resulting in the formation of large, non-selective pores and cracks in the membrane. On the other hand, polymeric membranes are less prone to damage by...
http://www.che.com/news/Chementator-A-promising-nanosieve-for-dehydrating-solvents-and-biofuels_3739.html
March 15, 2008
Ateam of researchers at the U.S. Department of Energy’s Argonne National Laboratory (ANL, Argonne, Ill.; edlinks.che.com/7370-568) has developed a membrane capable of producing olefins from alkanes, and reducing wasted energy and pollutants while improving selectivity and yield. Steam cracking, or pyrolysis, has long been the widespread production method for olefins including ethylene, propylene, and...
http://www.che.com/news/Chementator-Ceramic-ethane-to-ethylene-membrane-could-replace-pyrolysis_3740.html
March 15, 2008
Flowserve Corp. (Dallas, Tex.; edlinks.che.com/7370-569) has introduced a new noise-attenuating valve-trim for gaseous applications, one that simultaneously lowers the device’s manufacturing costs while improving its noise reduction capabilities. Like prior noise-attenuation trim, Flowserve’s Valtek Stealth is designed to reduce the velocity at the vena contracta (the point in a fluid stream...
http://www.che.com/news/Chementator-This-valve-trim-combines-multiple-noise-control-mechanisms_3741.html
March 15, 2008
The behavior of many different phenomena can be modeled by systems of ordinary differential equations (ODEs), but most ODEs cannot be solved analytically, in which case an approximation to the solution is found by applying numerical integration methods. Dutch-sponsored mathematician Valeriu Savcenco has developed new "multirate" numerical methods that can significantly reduce the CPU time and...
http://www.che.com/news/Chementator-New-methods-for-solving-differential-equations_3742.html
March 15, 2008
Alstom Power, Inc. (Windsor, Conn.; edlinks.che.com/7370-571) and The Dow Chemical Co. (Midland, Mich.; edlinks.che.com/7370-572) have established a joint development and...
http://www.che.com/news/Chementator-Amine-scrubbing_3743.html
March 15, 2008
Scientists at the Science and Technology Facilities Council (STFC) Rutherford Appleton Laboratory (Chilton, Didcot, U.K.; edlinks.che.com/7370-573) have developed a laser-based method for the characterization of the bulk-chemical content of pharmaceutical capsules — without opening the capsules. In...
http://www.che.com/news/Chementator-Non-invasive-detector_3744.html
March 15, 2008
Researchers at the Fraunhofer Institute for Solar Energy Systems (ISE; Freiburg, Germany; edlinks.che.com/7370-575) have developed a solar-cell prototype that is semi-transparent, color-tunable and (thus far) resistant to weather degradation. A "classical Grätzel cell" according to Andreas Gombert head of Fraunhofer’s Materials Research and Applied Optics department, the prototype is...
http://www.che.com/news/Chementator-Gratzel-cell_3745.html
March 15, 2008
Scientists from the Center Biology at University College Dublin (Ireland; edlinks.che.com/7370-576) and the University of Bologna (Italy; edlinks.che.com/7370-577) have developed an enzymatic process that can be applied to the synthesis of...
http://www.che.com/news/Chementator-Chiral-synthesis_3746.html
March 15, 2008
Rohm and Haas Co. (Philadelphia, Pa.; edlinks.che.com/7370-578)and Novasep (Nancy, France; edlinks.che.com/7370-579) are forming an exclusive alliance to market and sell...
http://www.che.com/news/Chementator-Purifying-glycerol_3747.html
March 15, 2008
SulphCo, Inc. (Houston, Tex.; edlinks.che.com/7370-580) has signed an agreement with Pt. Isis Megah (Isis; an Indonesian oil-and-gas services company), which grants Isis an exclusive...
http://www.che.com/news/Chementator-Sonocracking_3748.html
March 15, 2008
Henkel KGaA (Düsseldorf, Germany; edlinks.che.com/7370-581) has developed a new generation of plasticizer-free dispersion adhesives called Adhesin A 78 — a copolymer system whose formulation...
http://www.che.com/news/Chementator-Phthalate-free-glue_3749.html
March 7, 2008
Terracon Lenexa, Kansas Where to Begin? Last month’s column focused on the importance of health and safety compliance and the all the resources that were available to help businesses, particularly small ones, meet their obligations to keep their workers safe. Compliance begins with commitment and a health and safety program tailored to fit the company, to blend with its unique operations and culture...
http://www.che.com/news/Developing-A-Health-and-Safety-Program_3711.html
February 15, 2008
Asset management means different things to different people in the chemical process industries (CPI). Some take a holistic view in which equipment operations and maintenance, planning and scheduling and all other processing procedures fall under the asset management umbrella. Others focus solely on physical equipment and assets. To make it more diverse, asset management needs differ according to facility...
http://www.che.com/news/Newsfront-Making-the-Most-of-What-Youve-Got_3674.html
February 15, 2008
Hitachi Zosen Corp. (Hitz; Tokyo, Japan; edlinks.che.com/7369-531) is commercializing a new membrane for a hybrid-distillation system (HDS) that is especially suitable for dehydrating ethanol and isopropanol. The HDS can produce 99.7 vol.% ethanol from ethanol-water mixtures with 10 vol.% H2O at a dehydration rate of 50 kg/m2/h/atm (at 130°C), which is more than two times higher than conventional...
http://www.che.com/news/Chementator-New-ceramic-membrane-system-doubles-rate-and-slashes-cost-for-dehydrating-ethanol_3682.html
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