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Archives :: Processing & Handling :: Reaction Engineering :: Catalysis

Displaying 61 - 80 of 94 stories.
October 1, 2007
Bayer MaterialScience AG (BMS; Leverkusen, Germany; edlinks.che.com/6900-541) is opening a second production facility for Baytubes, its carbon nanotubes product, at H.C. Starck GmbH (Laufenburg, Germany). When...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Capacity-increase-for-carbon-nanotubes_3383.html
October 1, 2007
  Daicel Chemical Industries Ltd. (Osaka, Japan; edlinks.che.com/6900-540) is further developing an oxidation catalyst based on N-hydroxyphthalimide (NHPI), which was first discovered by Professor Yasutaka Ishii of Kansai University several years ago (CE, September 2000, p. 23). The catalyst, together with a small amount of metal salts (Mn or Co), can be used for the...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-step-closer-for-a-greener-route-to-adipic-acid_3384.html
October 1, 2007
Rigorous temperature control is required for performing selective catalytic reactions, such as hydrogenation and oxidation (ethylene oxide production, for example), and in reactions where the chemical equilibrium is strongly temperature dependent (Claus sulfur recovery or the CO-shift reaction, for example). Up to now, catalyst-filled, straight-tube reactors have typically been used for such reactions. But...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-new-type-of-internally-cooled-reactor-for-selective-synthesis_3387.html
September 1, 2007
In order to confirm the performance of its proprietary, high-severity fluid-catalytic-cracking (HS-FCC) process, Nippon Oil Corp. (Tokyo, Japan; edlinks.che.com/6899-533) plans to build a new confirmation-test plant at its Mizushima, Japan, refinery. The unit will have a treating capacity of 3,000 bbl/d when it starts operating in 2010 as part of a joint research project conducted by Petroleum...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Further-scaleup-for-a-downer-FCC-process_3353.html
August 1, 2007
The traditional way to check microbial growth in a fermentation process is to take a sample of slurry and analyze it in the laboratory, a procedure that is less than ideal because of the time delay in obtaining the information. Now, a method that does the job online, in real time, has been developed at Pacific Northwest National Laboratory (PNNL; Richland, Wash.; edlinks.che.com/6898-533). In PNNL’s...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-sound-way-to-monitor-fermentation_3298.html
August 1, 2007
Chiyoda Corp. (Kawasaki, Japan; edlinks.che.com/6898-535) has licensed its proprietary titania-supported catalyst for ultra-deep hydrodesulfurization (HDS) of gas oil to Axens (Paris, France; edlinks.che.com/6898-536). Axens is currently working on the final adjustment of industrial operating parameters, and plans to start commercial production of the new catalyst in the first...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-step-closer-to-release-for-a-new-hydrotreating-catalyst_3300.html
August 1, 2007
A new catalyst that promises to cut the cost of producing biodiesel fuel from vegetable oils and animal fats by 30% has been developed by Victor Lin, a chemistry professor at Iowa State University (Ames, Iowa; edlinks.che.com/6898-537). The solid catalyst replaces the soluble, sodium methoxide catalyst that is currently used for the transesterification of oils in the production of biodiesel...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/This-solid-catalyst-may-improve-the-economics-of-biodiesel-fuel-production_3301.html
July 1, 2007
Techno Bank Co., Ltd. (Tokyo, Japan; edlinks.che.com/6897-537) has developed a new supply, storage, and transport system for safely handling a high capacity of hydrogen in fuel-cell applications. The system — a cassette containing nano-sized powder of magnesium hydride (MgH₂) — is said to be safer than alternatives, such as insulated cylinders of liquid H₂ at 700 bar. Other methods being...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Putting-MgH2-in-your-fuel-tank_3288.html
June 1, 2007
Researchers from the Georgia Institute of Technology (GIT; Atlanta; edlinks.che.com/6896-547) and Xiamen University (China) have produced a new form of platinum: 24-faceted nanocrystals whose catalytic activity per unit area can be as much as...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/More-precious-Pt_3276.html
May 1, 2007
A new catalyst for selectively oxidizing hydrogen into hydrogen peroxide has been developed by professor Tatsumi Ishihara at the Post-Graduate School of Engineering, Kyushu University (Fukuoka City, Japan; edlinks.che.com/6895-535). This one-step synthesis of H2O2 is expected to be more...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-one-step-process-for-making-H2O2_3253.html
April 1, 2007
A process that yields hydrogen by using solar energy to split water has received one-third of the €1 million Descartes prize, awarded annually for research financed by the European Commission (Brussels, Belgium). The process was developed under the Hydrosol project, headed by the Chemical Process Engineering Research Institute, Center for Research and Technology-Hellas...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Solar-electrolysis_3239.html
March 1, 2007
SK Corp. (Seoul, South Korea; edlinks.che.com/6893-542) has developed a new process to increase the yield of olefins from the catalytic cracking of paraffinic feeds (paraffins-rich naphtha). The Advanced Catalytic Olefin (ACO) process uses a proprietary zeolite-type granular catalyst in a fluidized-bed system operating at...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Make-more-olefins-economically-with-this-new-catalytic-cracking-process_3221.html
February 1, 2007
Haldor Topsøe A/S (Lyngby, Denmark; edlinks.che.com/6892-531) has relaunched a methanation process, called TREMP, which makes synthetic natural gas (SNG) from synthesis gas (syngas) mixtures derived from coal gasification. The process was developed and extensively tested during the 1970s, when energy costs were expected to increase to previously unseen levels. When this did not happen, interest in...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Making-natural-gas-from-coal_3198.html
February 1, 2007
Conventional fluid-catalytic-cracking (FCC) catalysts are based on USY-type of zeolites (having a pore size of about 7.6 Å), which selectively decompose longer-chained hydrocarbons (HCs) into smaller HCs, gasoline components, light and heavy cycle oils and other products. ZSM-type zeolites have been used recently as additives because the smaller pore size (5.5 Å) allows the...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/This-modified-catalyst-additive-improves-the-yield-and-quality-from-FCC-units_3201.html
February 1, 2007
Nippon Oil Corp. (Tokyo, Japan; edlinks.che.com/6892-538) has completed a confirmation test of a magnetic-separation process that selectively removes spent FCC (fluid-catalytic-cracking) catalysts from actives ones. The process runs continuously and requires no shutdown of the FCC unit; normally, FCC catalysts have to be replaced periodically, which sometimes requires interruption of the FCC operation. The...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Continuously-replace-spent-FCC-catalyst-with-this-magnetic-separator_3204.html
January 1, 2007
Up to now, light-cycle oil (LCO) produced from desulfurized vacuum-gas oil has been used as a base for heavy oil or for blending with straight gas oil (SGO). But a decreasing demand for heavy oil, combined with LCO’s drawbacks as a blending material (such as low cetane number), is drying up these outlets for LCO. Furthermore, existing technology for hydrotreating LCO is energy intensive and consumes...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-more-economical-process-for-hydrotreating-light-cycle-oil_3186.html
November 1, 2006
Cellulose accounts for about 40% of the planet’s total photosynthesis yield (about 1.8 trillion m.t./yr), but the material has not been fully utilized as a chemical resource so far. That’s because the methods currently available for converting cellulose into useful chemicals have drawbacks, such as: low activity, for degradation by enzymes; poor selectivity and difficult separations, for...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/This-catalyst-converts-cellulose-into-sugar-alcohols_3035.html
November 1, 2006
ExxonMobil Chemical Technology Licensing LLC (Houston, Tex.; edlinks.che.com/6518-541) has commercialized its new Olgone technology, a catalyst-based process for removing olefins from aromatic streams. If not removed, such olefinic...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-cleaner-way-to-remove-olefins-from-aromatics_3036.html
October 1, 2006
Since February, Lonza Singapore Pte. Ltd. has been using a new I-400 catalyst in a Isomar unit at its Singapore plant, which produces pure isophthalic acid (an intermediate for making resins). The I-400 catalyst was developed by UOP LLC (Des Plains, Ill.; edlinks.che.com/6517-537). UOP also...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/A-new-catalyst-proves-itself-in-first-commercial-application_3015.html
October 1, 2006
Chemists at Boston College (Chestnut Hill, Mass.; edlinks.che.com/6517-546) have discovered a silylation catalyst that attaches a silicon atom to an alcohol group not only with high selectivity...
http://www.che.com/processing_and_handling/reaction_engineering/catalysis/Chiral-catalyst_3020.html
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