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Displaying 101 - 120 of 899 stories.
July 1, 2013
GE Power & Water (Trevose, Pa.; www.ge.com) has introduced a novel, dual-pronged approach to corrosion inhibition for boiler and steam-condensate systems in petroleum refineries. The technology is designed to prevent attack by acidic species on steam-system surfaces, providing reliability to the refining process and helping to maximize profitability. Tradenamed Steamate Low Salt Amine (LSA), this new...
http://www.che.com/chementator/Improved-corrosion-control-in-refinery-steam-systems_10646.html
July 1, 2013
New Energy and Industrial Technology Development Organization (NEDO; Kawasaki City; www.nedo.go.jp) and Panasonic Corp. (Osaka, both Japan; panasonic.net) have begun testing a new type of power-generation system that uses anisotropic solid-state composites that produce an electrical current when a temperature gradient is applied. A prototype has been installed at Kyoto City Northeastern Clean Center where...
http://www.che.com/chementator/Using-low-temperature-waste-heat-to-make-power_10647.html
July 1, 2013
Ammonia is a promising candidate for scrubbing carbon dioxide from fluegas, since each ammonia molecule can absorb one molecule of CO2, whereas amine absorbers require two molecules to do the same job. However, because ammonia is volatile, the fluegas must be cooled to about 10°C. This requires a lot of electrical energy, points out Indira Jayaweera, a senior staff scientist with SRI International...
http://www.che.com/chementator/A-salty-way-to-scrub-CO2_10648.html
July 1, 2013
On the heels of its successful scaleup of bio-butanol, Cobalt is looking for pathways to use that molecule as a building block for other products. The company has announced plans to build...
http://www.che.com/chementator/A-bio-butadiene-plant-is-planned_10649.html
July 1, 2013
Freestanding nanowires exhibit ultrahigh elastic-strain limits (of up to 7%) and yield strengths. However, it has been difficult to exploit their properties in bulk composites, due to the mismatch between the elasticity of the nanowires and the elasticity of the metals that form the matrix. The nanowires will experience an elastic deformation of several percent, but normally the metals that form the matrix...
http://www.che.com/chementator/Nanowires-improve-the-properties-of-metal-composites_10651.html
July 1, 2013
Squalane, an emollient used in cosmetics, will be the first product of a biotechnology pilot plant now being started up by Nucelis Inc. (San Diego, Calif.; www.nucelis.com), a spin-off from Cibus (also of San Diego). The plant will use Cibus’ Rapid Trait Development System (RTDS), a new gene-editing technology, to enable naturally occurring yeast to increase their production of squalene, the...
http://www.che.com/chementator/A-biotech-process-that-might-benefit-sharks_10652.html
June 1, 2013
Seiko PMC Corp. (Tokyo; www.seikopmc.co.jp) has installed a pilot plant for the production of cellulose nanofibers (CNFs) at its Ryugasaki Factory, and will begin shipping samples next spring with the aim of commercial activities in 2015. In...
http://www.che.com/chementator/A-pilot-plant-for-making-CNFs_10554.html
June 1, 2013
  Ceramic paper A paper-like material made from vanadium-pentoxide ceramic that is as hard as copper and can be folded or rolled up has been produced by scientists at Stuttgart University (www.uni-stuttgart.de), the Max-Planck Institute (MPI) for Intelligent Systems (www.is.mpg.de) and the MPI for Solid State Research (all Stuttgart, Germany; www.fkf.mpg.de). The ceramic paper consists of conductive...
http://www.che.com/chementator/June-Chementator-Briefs_10555.html
June 1, 2013
What is said to be the world’s first commercial alkylation plant to use a solid acid catalyst is scheduled for startup early next year by Shandong Wonfull Petrochemical Group Co. (Zibo, China). The plant, which will produce 100,000 ton/yr of alkylate, will use a process called AlkyClean, developed by CB&Is Technology Group (The Woodlands, Tex.; www.cbi.com), Albemarle Corp. (Orangeburg, S.C....
http://www.che.com/chementator/A-solid-acid-catalyst-alkylation-process-will-be-commercialized_10557.html
June 1, 2013
The temperature and moisture level of the air being drawn into the front end of ammonia, nitrogen, nitric acid or other plant air compressors directly impacts the yield from the process, and chilling is a way to debottleneck air production in such plants. Most methods traditionally used to increase air production in the past involved process modifications, such as adding a parallel compressor or installing...
http://www.che.com/chementator/This-process-delivers-chilled-air-using-a-fraction-of-the-power-required_10558.html
June 1, 2013
A demonstration plant in Newcastle, New South Wales, Australia, will produce hydrochloric acid and iron pellets from the iron-chloride leach liquor generated by the production of synthetic rutile, the common mineral form of titanium dioxide. The plant will utilize a process called EARS (enhanced acid-regeneration system) developed by Austpac Resources NL (Sydney, Australia; www.austpacresources.com). At...
http://www.che.com/chementator/Acid-recovery-makes-rutile-production-more-economical_10560.html
June 1, 2013
Nippon Paper Industries Co. (Nippon Paper; Tokyo; www.nipponpapergroup.com) is constructing a verification plant for the production of cellulose nanofibers (CNFs) at the Chemical Div. of its Iwakuni...
http://www.che.com/chementator/A-production-plant-for-CNFs_10561.html
June 1, 2013
Tantalum and niobium, which are often found in complex ores, are essentially chemically inert metals whose recovery involves some harsh measures: typically dissolution of the metals concentrate in a mixture of concentrated hydrofluoric and sulfuric acids, followed by solvent extraction with methyl- iso -butyl-ketone dissolved in kerosene. A process that is said to be safer and greener has been developed...
http://www.che.com/chementator/A-safer-cleaner-way-to-obtain-tantalum-and-niobium_10562.html
June 1, 2013
An improved H2SO4 process developed by CB&I (The Woodlands, Tex.; www.cbi.com) has now been licensed to three companies, all in China. The first licensee was Ningbo Haiyue New Material Co. Ltd., which is building a 600,000-m.t./yr plant near Ningbo City, Zhejiang Province (CE, December 2011, p. 11). The other two plants, each of 200,000 m.t./yr, are being built by undisclosed companies in Shandong and...
http://www.che.com/chementator/An-improved-H2SO4-alkylation-process-gains-acceptance_10564.html
June 1, 2013
China’s largest private chemical EPC (engineering, procurement, construction) contractor, Wison Engineering Ltd. (Wison; Shanghai; www.wison.com) has recently introduced details about its proprietary butadiene technology, which is set for commercialization. The process aims to meet the anticipated growth in annual butadiene consumption, which will “far exceed” global expansion in...
http://www.che.com/chementator/A-new-butadiene-process-is-set-for-commercialization_10566.html
June 1, 2013
Oji Holdings Corp. (OJI; www.ojiholdings.co.jp) and Mitsubishi Chemical Corp. (MCC; both Tokyo, Japan; www.m-kagaku.co.jp) have developed a continuous process for producing transparent sheets made from ultra-thin, wood-based cellulose nanofibers (CNF). Both OJI’s papermaking technology and MCC’s chemical treatment technology...
http://www.che.com/chementator/Continuous-production-of-transparent-sheets-of-cellulose-nanofibers_10567.html
June 1, 2013
Selecting air-pollution control equipment can be tricky. It’s not only difficult to determine which pollutants must be controlled, but also which type of equipment will best control them to required levels for any given process or facility because there is no “one-size-fits-all” solution. Technologies that successfully control pollutants in one facility may not work as well in another...
http://www.che.com/chementator/air_pollution_control/Controlling-Air-Pollutants_10556.html
May 1, 2013
Last month, Krohne Messtechnik GmbH (Duisburg, Germany; www.krohne.com) launched SmartSens, the first family of two-wire, loop-powered analytical sensors with integrated transmitter technology. Prior to this, analytical sensors have required an external proprietary transmitter onsite to deliver the sensor signals to the process control system. Krohne has...
http://www.che.com/chementator/Sensors-with-a-transmitter-built-in_10441.html
May 1, 2013
Naomi Shibasaki-Kitagawa at Tohoku University (Sendai, Japan; www.che.tohoku.ac.jp/~rpel/) has developed a continuous reactor for making biodiesel fuel from low-quality waste, such as cooking oil. Her production process uses an expanded-bed reactor packed with an anion-exchange resin that has both catalytic and adsorption capabilities. The...
http://www.che.com/chementator/This-biodiesel-process-requires-no-pre-or-post-treatment_10442.html
May 1, 2013
Two new coating products for sand proppants used in hydraulic fracturing operations in the oil and gas industry overcome the challenges of traditional phenolic coatings, which can leach environmentally hazardous chemicals. The coatings, developed by Preferred Sands LLC (Radnor, Pa.; www.preferredsands.com), are based on a specialized polyurethane developed over the past three years with partner The Dow...
http://www.che.com/chementator/Improved-coating-for-hydraulic-fracturing-proppants_10444.html
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