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Displaying 201 - 220 of 899 stories.
September 1, 2012
Linde Gases (Murray Hill, N.J.; www.linde-gases.com) has developed a novel cryogenic technology that promotes uniformity in the formation of ice crystals during freeze-drying (lyophilization) processes for proteins, vaccines and other injectable pharmaceutical products. Lyophilization involves freezing a solution of the product, then reducing the surrounding pressure to allow the water to sublimate...
http://www.che.com/chementator/Sterile-ice-fog-improves-control-of-freeze-drying_9629.html
September 1, 2012
Masaru Nakamichi, leader of the Blanket Technology Group, Naka Fusion Institute, Japan Atomic Energy Agency (JAEA, Ibaraki, Japan; www.naka.jaea.go.jp) has developed a new fabrication technology that enables the mass-production of beryllium intermetallic compounds (beryllides), which are advanced, efficient neutron multipliers that could be used for nuclear fusion reactors. JEAE is said to be the first to...
http://www.che.com/chementator/A-step-toward-the-production-of-fuel-for-nuclear-fusion_9630.html
September 1, 2012
A test method developed by SABIC (Saudi Basic Industries Corp.; Riyadh, Saudi Arabia; www.sabic.com) scientists drastically reduces the time needed to evaluate slow-crack growth resistance in high-density polyethylene (HDPE) that is used in pressure pipes. The strain-hardening test method allows HDPE producers to speed product development and improve quality control by offering an alternative to...
http://www.che.com/chementator/Strain-hardening-test-method-speeds-HDPE-pipe-testing_9632.html
September 1, 2012
  Artificial photosynthesis Scientists at Panasonic Corp.(Osaka, Japan; www.pana sonic.com) have developed an artificial photosynthesis system that utilizes sunlight to convert CO2 to organic materials (mainly formic acid) at what is said to be the highest efficiency yet achieved (0.2%). The efficiency level is comparable to that of plants. The keys to the Panasonic system are a nitride semiconductor...
http://www.che.com/chementator/September-Chementator-Briefs_9635.html
September 1, 2012
A new hydraulically driven, positive-displacement-pump system can lower the energy requirements for pumping water by 10% in large seawater reverse osmosis (SWRO) desalination plants, where electricity typically represents the largest cost. Recently launched by GE Water & Power (www.ge-energy.com) at the 2012 International Water Week in Singapore, the IPER (integrated pump and energy recovery)...
http://www.che.com/chementator/This-new-pump-system-improves-efficiency-for-desalination-operations_9636.html
September 1, 2012
A move toward bio-based malic acid... Novozymes A/S (Copenhagen, Denmark; www.novozymes.com) has developed a strain of metabolically engineered Aspergillus oryzae fungus that is capable of producing the four-carbon, dicarboxylic acid compound malic acid. The chemical building block malic acid is used as a flavor enhancer in the food industry, and can be converted into 1,4-butanediol (BDO), which serves as...
http://www.che.com/chementator/A-move-toward-bio-based-malic-acid-acrylic-acid-and-butadiene_9637.html
September 1, 2012
Synfuels China Technology Co. (Beijing; www.synfuelschina.com.cn) says it has developed a high-temperature slurry Fischer-Tropsch (F-T) process (flowsheet) that produces mainly clean diesel, naphtha and liquefied petroleum gas (LPG) products, with unique features including: high productivity of proprietary catalyst; efficient recovery of reaction heat by producing 2.5–3.0-MPa(g) steam, which can be...
http://www.che.com/chementator/A-high-temperature-F-T-process-demonstrated-in-China_9652.html
August 1, 2012
French researchers from the Institut Européen des Membranes (CNRS/ENSCM, Université Montpiellier; www.iemm.univ-mont2.fr) and the Institut de Chimie Radicalaire (CNRS, Aix-Marseille Université) have developed what is claimed to be the first dynamic membrane...
http://www.che.com/chementator/A-self-healing-dynamic-membrane_9518.html
August 1, 2012
Last month, Solvay Group (Brussels, Belgium; www.solvay.com) unveiled a methane recovery system (the MaRS Project) that captures methane liberated by mining trona ore (trisodium hydrogendicarbonate dihydrate), and pipes the gas to nearby processing facilities as a fuel for process heating. Sodium carbonate, a key ingredient in making glass, soap, paper and other products, is the major component recovered...
http://www.che.com/chementator/Methane-recovery-from-a-trona-mine_9520.html
August 1, 2012
The Yankuang Group (Zoucheng City, Shandong Province; www.ykjt.cn), one of China’s largest coal companies, and Accelergy Corp. (Houston; www.accelergy.com), are jointly developing a large-scale, low-carbon, coal-to-liquids (CTL) plant incorporating both direct and indirect liquefaction, in Erdos in China’s Inner Mongolia Province. The plant, which will produce 68,000 bbl/d of fuel per day, will...
http://www.che.com/chementator/Scaleup-of-a-CTL-process-with-carbon-capture_9521.html
August 1, 2012
Two dissimilar iron-making methods — a conventional blast furnace using coke from coal, and gas-based direct reduction of iron ore — are combined in a process being developed by Midrex Technologies, Inc. (Charlotte, N.C.; www.midrex.com) and Praxair Inc. (Danbury, Conn.; www.praxair.com). Designed to use offgases from the coke-making operation in integrated steel mills, the process offers three...
http://www.che.com/chementator/Coke-oven-offgases-may-help-to-increase-steel-production_9522.html
August 1, 2012
Differential pressure can be a tough problem for butterfly valves, in that it can cause damaging cavitation. As a rule of thumb, for instance, a typical butterfly valve can only handle a maximum of 30% differential pressure (DP), explains René van der Gaag, global product manager lined-valves process for Tyco Flow Control (Breda, The Netherlands...
http://www.che.com/chementator/This-valve-tolerates-up-to-80-percent-differential-pressure_9525.html
August 1, 2012
A system that continuously produces 10 ton/yr of nanoparticles has been developed by Tadafumi Adschiri, principal investigator at the Advanced Institute for Materials Research (AIMR) and professor at the Institute of Multidisciplinary Research for Advanced Materials and New Industry Hatchery Center, Tohoku University (Sendai; Japan; www.wpi-aimr.tohoku.ac.jp/en). The process, which uses a supercritical...
http://www.che.com/chementator/The-mass-production-of-organic-modified-metal-oxide-nanoparticles_9526.html
August 1, 2012
The production rate (per amount of catalyst) for generating liquid hydrocarbons from syngas by the Fischer-Tropsch (F-T) process, using a slurry reactor or tubular reactor, is generally limited to about 30% of the maximum rate. The restraining factor is heat removal from the highly exothermic reaction, says Steven Vallee, chemical applications engineer for Chart Energy & Chemicals Inc. (La Crosse...
http://www.che.com/chementator/A-more-efficient-Fischer-Tropsch-reactor_9527.html
August 1, 2012
Petroleum-derived ethylene normally contains traces of acetylene, which interferes with the conversion of ethylene into polyethylene (PE). Because it is difficult to separate it, the acetylene is selectively hydrogenated to ethylene — without subsequent hydrogenation to ethane — using a palladium-based catalyst. Scientists at the Max Planck Institute for Chemical Physics...
http://www.che.com/chementator/Knowledge-based-approach-to-catalyst-development_9528.html
August 1, 2012
Ajinomoto Co., Inc. (www.ajinomoto.com) and Bridgestone Corp. (Both Tokyo, Japan; www.bridgestone.com) have jointly developed a bio-based, high- cis-polyisoprene synthetic rubber. The two companies began an R&D cooperation in June 2011 to combine their know-how — Ajinomoto’s...
http://www.che.com/chementator/Making-synthetic-rubber-from-biomass_9529.html
August 1, 2012
A new particle-size measurement technique has been developed and used to evaluate filter retention efficiency for particles with an average diameter of 12 nm by C.T. Associates Inc. (Eden Prairie, Minn.; www.ctassociatesinc.com) and W.L. Gore and Associates (Newark, Del.; www.gore.com). Scientists at C.T. Associates developed the liquid nanoparticle sizer (LNS) for evaluating filtration devices that remove...
http://www.che.com/chementator/Detecting-sub-50-nm-particles-in-ultrapure-water_9530.html
August 1, 2012
  A new electrolysis cell At Achema 2012, ThyssenKrupp Uhde GmbH (Dortmund, Germany; www.uhde.eu) introduced a new generation of its single-element electrolysis cell, Generation 6, which offers improved energy consumption and increased active-membrane area. These improvements are due to an elastic element that enables the entire active area of the membrane to be positioned between the electrodes...
http://www.che.com/chementator/August-Chementator-Briefs_9531.html
July 1, 2012
Technology originally developed for dewatering algae has shown success in separating hydrocarbons from produced water that results from oil and gas drilling. The method could be used in treating produced water for onsite re-use as hydraulic fracturing fluid. To harvest oil from algae, OriginOil Inc. (Los Angeles, Calif.; www.originoil.com) developed an electroflocculation...
http://www.che.com/chementator/Algae-harvesting-technique-applied-to-produced-water_9443.html
July 1, 2012
  ADN production Nylon-polymer producer Invista (Wichita, Kan.; www.invista.com) has developed new technology for the production of adiponitrile (ADN), a key ingredient for nylon 6,6. The advances, which came as a result of $40 million of R&D spending, can improve product yields, reduce energy consumption and enhance process stability compared to existing technologies, Invista says. The new ADN...
http://www.che.com/chementator/July-Chementator-Briefs_9444.html
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