Archives :: Chementator

Displaying 401 - 420 of 950 stories.
August 1, 2011
  Graphene from dry ice Researchers at Northern Illinois University (NIU; DeKalb, Ill.; www.niu.edu) discovered a new method for producing graphene that involves burning pure magnesium metal in dry ice. The method, which is capable of producing large quantities of graphene in sheets less than ten atoms thick, is simpler than conventional methods for generating graphene, and avoids hazardous chemicals...
http://www.chemengonline.com/chementator/August-Chementator-Briefs_8289.html
August 1, 2011
The properties of gold nanoparticles could be combined with those of polydimethylsiloxane (PDMS) to provide a sustainable and practical solution for water treatment, according to a team from the Jawaharlal Nehru Center for Advanced Scientific Research (Bangalore, India; www.jncasr.ac.in). The team, headed by professor Giridhar U. Kulkarni, has synthesized low-density, highly compressible, porous foams of...
http://www.chemengonline.com/chementator/A-touch-of-gold-makes-a-swell-absorbent-foam_8290.html
August 1, 2011
GE Power & Water (Trevose, Penn.; ge.com) has introduced an improved membrane bioreactor (mbr) technology whose productivity is said to be 15% higher than that of its predecessor for wastewater treatment plants. The new system, called LEAPmbr, was derived from innovations to GE’s ZeeWeed 500 mbr. Glenn Vicevic, senior manager, Engineered Systems, says the system has been tested on a commercial...
http://www.chemengonline.com/chementator/This-new-membrane-bioreactor-cuts-energy-costs-and-boosts-throughput_8291.html
August 1, 2011
Almost by definition, chemical engineering is a “green” discipline today, as it so often involves efforts to optimize chemical processes in order to reduce the amount of energy and raw materials that are used and the amount of waste that is generated. Today everybody “talks green” but in a lot of cases engineers are the most qualified people to provide the tools required to make...
http://www.chemengonline.com/chementator/air_pollution_control/Practice-Green-Chemical-Engineering_8298.html
July 1, 2011
Grace Davison (Columbia, Md.; www.grace.com) has commercialized a set of catalysts and additives for fluid catalytic cracking (FCC) that contain either zero or low rare-earth metal content. The new product family, known as Replacer, includes new catalysts for processing both hydrotreated and residual-fuel-oil (resid) feed, as well as environmental additives for sulfur treatment. The product family employs...
http://www.chemengonline.com/chementator/A-catalyst-line-with-low-or-zero-rare-earth-metals_8162.html
July 1, 2011
Sulfur dioxide emissions from metals smelters and other process plants are typically treated by converting the SO2 to sulfuric acid, but this may not be convenient, because of the shipping cost for plants located far from an acid market. WorleyParsons (Monrovia, Calif.; www.worleyparsons.com) offers a solution to this problem with a process that converts SO2 to elemental sulfur, which is easier and safer...
http://www.chemengonline.com/chementator/An-innovative-way-to-recover-elemental-sulfur-from-SO2-emissions_8172.html
July 1, 2011
Researchers from the University of Cantabria (Santander, Spain; www.unican.es) have developed a process for incorporating Waelz slag into ceramic clay construction bricks, offering an alternative for disposal of the industrial byproduct. The engineers replaced between 20 and 30% of clay with slag, and found that the inclusion at that level did not have any significant detrimental effect on the physical...
http://www.chemengonline.com/chementator/Waelz-slag-used-in-commercial-ceramic-bricks_8173.html
July 1, 2011
The research group of professor Akihiko Kondo at Kobe University (Kobe City, www2.kobe-u.ac.jp/~akondo/index_English.htm) has developed a one-step, pretreatment process for making bioethanol from cellulose and lignocellulose. The process uses an ionic liquid — which converts cellulose into a gel — and a genetically engineered yeast (arming yeast) that...
http://www.chemengonline.com/chementator/This-one-step-route-to-cellulosic-ethanol-features-a-multitasking-yeast_8177.html
July 1, 2011
A process for making polyols from soybean oil and glycerin has been licensed by its developer, Battelle (Columbus, Ohio; www.battelle.org), to Emery Oleochemicals Americas (Cincinnati, Ohio; www.emeryoleo.com), who intends to produce the renewably sourced polyols at prices similar to those of petroleum-based polyols. As multifunctional alcohols, polyols are widely used in industry, especially for making...
http://www.chemengonline.com/chementator/Process-for-renewably-sourced-polyols-licensed_8180.html
July 1, 2011
Last month, Corning SAS (Avon, France), a subsidiary of Corning Inc. (Corning, N.Y.; www.corning.com), introduced the Advanced-Flow G4 Ceramic Reactor — the latest addition to the company’s line of glass flow reactors. The G4 is made of sintered-ceramic fluidic modules based on the...
http://www.chemengonline.com/chementator/A-glass-flow-reactor-is-now-available-in-ceramic_8193.html
July 1, 2011
  Waste-to-biofuels Valero Energy Corp. (San Antonio, Tex.; www.valero.com) is one of five companies that have invested a total of $60 million in new financing in Enerkem Inc. (Montreal, Que.; www.enerkem.com), which has developed a process to produce liquid fuels and chemicals from municipal solid waste. Valero, the largest independent petroleum refiner in the U.S., has made a number of investments...
http://www.chemengonline.com/chementator/July-Chementator-Briefs_8194.html
July 1, 2011
Stamicarbon B.V. (Sittard, the Netherlands; www.stamicarbon.com), the licensing and IP Center of Maire Tecnimont S.p.A. (www.mairetecnimont.it), has recently signed a license agreement with Tierra del Fuego Energia Y Quimica S.A., an Argentina based company controlled by shareholders from China. The agreement concerns a urea synthesis plant and a urea granulation plant with a capacity of 2,700 metric tons...
http://www.chemengonline.com/chementator/A-new-urea-process-slated-for-its-commercial-debut_8196.html
July 1, 2011
Metso (Helsinki, Finland; www.metso.com) is supplying a 140-MWth biogasification plant to Vaskiluodon Voima Oy in Vaasa, Finland. When it starts up in December 2012, the €40-million gasification plant, which will be located next to the existing 565-MW coal-fired power plant, will convert biomass (mainly forest residues) into a so-called biogas that can be combusted with coal. The gasification facility...
http://www.chemengonline.com/chementator/Finland-becomes-the-home-of-a-large-biogasification-plant_8202.html
July 1, 2011
A compact, inexpensive and energy-saving continuous process to make bioethanol is being developed by professor Yoshio Katakura at Kansai University (Osaka; microbial.life-bio.kansai-u.ac.jp), in collaboration with the Kinki Bio-industry Development Organization (Osaka), Kansai Chemical Engineering Co. (Amagasaki), and Akita National College of Industry (Akita, all Japan). The so-called CCSSF process...
http://www.chemengonline.com/chementator/A-continuous-process-that-promises-to-slash-the-cost-of-making-bioethanol_8211.html
July 1, 2011
A novel nickel-manganese-gallium alloy, introduced by Goodfellow Corp. (Oakdale, Pa.; www.goodfellowusa.com), elongates in a magnetic field, allowing the conversion of magnetic field energy into kinetic energy. The material offers an alternative to conventional actuators, and could find other uses in energy harvesting systems, breaker switches, sensors and others. Grown as a single crystal using a modified...
http://www.chemengonline.com/chementator/Magnetic-shape-memory-alloy-offers-alternative-to-traditional-actuators_8213.html
June 1, 2011
  Underground pipes A hand-held device for locating buried pipe will be commercialized by Sensit Technologies (Valparaiso, Ind.; www.gasleaksensors.com) under license from Gas Technology Institute (GTI, Des Plaines, Ill.; gastechnology.org.). GTI says the technology is expected to save industry millions of dollars by helping to reduce the damage to buried pipes. The device, which uses acoustic...
http://www.chemengonline.com/chementator/June-Chementator-Briefs_8084.html
June 1, 2011
Scaleup is set for two technologies that facilitate the capture of carbon dioxide from fluegas by substituting oxygen for combustion air. Oxycombustion, as it is called, results in a much smaller fluegas stream, containing up to 90% CO2; part of that is recycled to dilute the O2 and control the combustion temperature. The O2 is entrained in the CO2 stream for injection into the furnace. The companies...
http://www.chemengonline.com/chementator/CO2-capture-technologies-move-ahead_8085.html
June 1, 2011
Researchers at Lawrence Livermore National Laboratory (LLNL; Livermore, Calif.; www.llnl.gov) have created a nanocrystalline diamond aerogel. The new aerogel was produced by compressing a standard carbon-based aerogel precursor in a...
http://www.chemengonline.com/chementator/Lightweight-diamond-aerogel_8086.html
June 1, 2011
Along with an innovative elastomeric compound, scientists at Federal Mogul Corp. (Southfield, Mich; www.federalmogul.com) have developed a rubber manufacturing process that eliminates the need for curing in a batch oven after molding. The proprietary compound...
http://www.chemengonline.com/chementator/Rubber-manufacturing-process-allows-in-mold-curing_8090.html
June 1, 2011
A research team from Los Alamos National Laboratory (Los Alamos, N.M.; www.lanl.gov) has developed a novel catalyst for the cathode of a fuel cell that avoids using expensive ($1,800/oz.) platinum metal. The cathode catalyst...
http://www.chemengonline.com/chementator/A-platinum-free-fuel-cell-catalyst_8093.html
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