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Archives :: Processing & Handling :: Reaction Engineering

Displaying 301 - 320 of 328 stories.
June 1, 2006
Professor Yasutaka Ishii, and colleagues from the Dept. of Applied Chemistry, Kansai University (Osaka, Japan; edlinks.che.com/5830-535), has developed a three-step production process to make epsilon-caprolactam (CPL) from cyclohexane. Compared to alternative methods, the process has a higher CPL yield, generates less waste, and avoids the use of corrosive reagents, says Ishii. The convectional route to...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Chementator-Another-green-process-to-make-caprolactam_2951.html
June 1, 2006
    Volatile organic compounds (VOCs), together with particulate matter, sulfur oxides and nitrogen oxides, are major components of air pollution that can lead to serious environmental and health hazards. Physical, chemical and biological treatment methods are available to remove VOCs from the air by either recovery or destruction [1-3]. Biological treatment methods, while less well-established...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/Biological-Treatment-of-VOCs_2781.html
June 1, 2006
Although many new biodiesel plants are sprouting up around the world, Perstorp Oxo AB’s (Stenungsund Sweden) 160,000 m.t./yr rapeseed-methyl-esters (RME) facility, now under construction at Stenungsund, will be the first to have a reactor made from...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/Chementator-This-biodiesel-reactor-is-made-of-duplex_2957.html
June 1, 2006
Fluxome Sciences A/S (Lyngby, Denmark; edlinks.che.com/5830-547) has been granted patents in both the U.S.and Europe for a method to improve bioethanol production by...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/Chementator-Bioethanol_2960.html
June 1, 2006
ATMI Life Sciences (ATMI; Hoegaarden, Belgium; edlinks.che.com/5830-549) and Pierre Guérin SAS (Mauze sur le Mignon, France; edlinks.che.com/5830-550) have formed an alliance to design, manufacture...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/Chementator-Disposable-bioreactors_2962.html
May 1, 2006
    It’s an old saw, but I’ve long held that process development is very much a team effort. Developing safe, robust and scaleable chemical processes calls for close collaboration between synthesis chemists, process development engineers and pilot plant personnel. But experience shows that, particularly in many fine chemical and pharmaceutical organizations, researchers fail to put...
http://www.che.com/processing_and_handling/reaction_engineering/A-Bit-of-Extra-Lab-Effort-Can-Prevent-Grief-During-Scaleup_2817.html
May 1, 2006
Early next year, Nippoh Chemicals Co. (Tokyo; edlinks.che.com/5829-532) plans to build a 1,000-m.t./yr plant for producing the pharmaceutical precursor trimethyl orthoacetate (1,1,1-trimethoxyethane). The facility will utilize a continuous-flow, microreactor-based process that Nippoh Chemicals developed in cooperation with professor Jun-ichi Yoshida at the Graduate School of Engineering, Kyoto University...
http://www.che.com/processing_and_handling/reaction_engineering/Chementator-A-commercial-breakthrough-for-microreactors_2936.html
May 1, 2006
The Linz, Austria-based VAI Division of Siemens Industrial Solutions and Services (Erlangen, Germany; edlinks.che.com/5829-535) is commercializing a smelt-reduction process for recycling metal oxide wastes. The ZEWA (zero waste) process, developed by a consortium of companies in a research project under the EU’s Fifth Framework Program, eliminates the need to dispose of slag, dust, sludge or scale...
http://www.che.com/processing_and_handling/reaction_engineering/Chementator-A-new-process-to-recycle-metal-oxide-and-mineral-residues_2937.html
May 1, 2006
Over the next four years, EnvoSmart Technologies B.V. (Roosendaal, Netherlands; edlinks.che.com/5829-533) plans to install 31 ThermoFuel systems throughout Europe for converting plastic waste into low-sulfur diesel fuel. The first six systems are to be located near Berlin, Germany, where they will produce 38 million L/yr of diesel from 42,000 m.t./yr of plastic when started up in mid 2007. Subsequent...
http://www.che.com/processing_and_handling/reaction_engineering/Chementator-Europe-to-get-a-new-wave-of-plastic-to-diesel-plants_2946.html
May 1, 2006
First commercial results for a new reforming catalyst (R-98) of UOP LLC (Des Plaines, Ill.; edlinks.che.com/5829-545) were reported last month. Hunt Refining...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Chementator-Reforming-catalyst_2939.html
May 1, 2006
Sigma-Aldrich (St. Louis, Mo.; edlinks.che.com/5829-550) has commercialized an air- and water-stable palladium catalyst for performing intermolecular cross-coupling reactions, aminations and intermolecular Heck...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Chementator-Pd-catalyst_2941.html
May 1, 2006
    Advances in catalytic cracking technologies are improving efficiency, product selectivity and environmental emissions. Optimum performance, reliability and flexibility of fluid catalytic cracking (FCC) units is essential for the continued competitiveness of refineries and their ability to meet market demands for refined products. FCC traditionally converts gas oil and heavier residual oil to...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Technology-Showcase-Trends-in-Fluid-Catalytic-Cracking_3073.html
May 1, 2006
Although citrus peels are rich in pectin, cellulose and hemicellusic polysaccharides, such waste products are currently marketed as low-value cattle feed, despite its relatively high processing cost, according to the ARS Citrus and Subtropical Products Laboratory (Winter Haven, Fla.; edlinks.che.com/5829-544). An...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/Chementator-Ethanol-from-peels_2940.html
April 1, 2006
It is now fairly well established that mass- and heat-transfer efficiency, reaction selectivity and yield can be improved using microreactor technology (CE, July 2001, pp. 27–35). But the small channel dimensions (below one square millimeter) that are responsible for the improvements also limit the production capacities to a few metric tons per year. The idea of numbering up — connecting...
http://www.che.com/processing_and_handling/reaction_engineering/Microreactors-widen-their-reach-for-increased-capacities_2925.html
April 1, 2006
    Liquids are accumulated and stored in tanks of various shapes and sizes throughout the chemical process industries (CPI). A small number of companies have made the design, fabrication and erection of these vessels their specialty. Initially, however, it is the process engineer who sizes and specifies tanks according to a specific application’s needs. In order to develop a data sheet for...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Understanding-Atmospheric-Storage-Tanks_2791.html
April 1, 2006
Although chemically identical to vegetation-derived cellulose, bacterial cellulose (BC) has a different tertiary structure, which imparts a number of unique — and commercially important — properties. For example, BC is nontoxic and biocompatible, and has a large water-holding capacity, which makes it suitable for dressing wounds in medicine. Other possible uses are cleaning environmental...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/A-rotating-contactor-improves-quality-of-bacterial-cellulose_2924.html
April 1, 2006
    It’s not a question of whether the world supply of fossil is going to run out; its just a question of when, says professor Colin Webb, head of the chemical engineering department at the University of Manchester (England), who was addressing several hundred delegates at a Thursday-afternoon colloquium on biorefineries last month at Dechema e.V (Frankfurt, Germany). That’s why most...
http://www.che.com/processing_and_handling/reaction_engineering/biochemistry/The-path-to-biorefineries_3071.html
March 1, 2006
BASF AG (Ludwigshafen, Germany; edlinks.che.com/5827-546) has developed a new process for producing chiral intermediates for pharmaceutical products. Without disclosing any details, BASF says the process is based on...
http://www.che.com/processing_and_handling/reaction_engineering/Chementator-New-chiral-compounds_2904.html
March 1, 2006
A heterogeneous catalyst for producing the solvent methyl isobutyl ketone has been developed by graduate student Ferry Winter, who defended his chemistry Ph.D. thesis last month at Utrecht University (Netherlands...
http://www.che.com/processing_and_handling/reaction_engineering/Chementator-Heterogeneous-catalyst_2907.html
March 1, 2006
Simulations of chemical processes that involve many reactants with continually changing compositions can be set up and run in minutes, rather than the previously required hours, with a newly commercialized software package, Reaction Engineering Lab, says developer Comsol (Stockholm, Sweden, and Burlington, Mass.; edlinks.che.com/5827-539). For reactions taking place in well-mixed systems or in tubular...
http://www.che.com/processing_and_handling/reaction_engineering/Chementator-New-software-should-speed-up-reaction-engineering_2913.html
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