Archives :: Processing & Handling :: Reaction Engineering

Displaying 201 - 220 of 330 stories.
August 1, 2007
This system, which has multiple reactors and uses microwaves for heating, has been developed by professor Yuji Wada at the Graduate School of Science and Engineering, Tokyo Institute of Technology (edlinks.che.com/6898-543), in cooperation with Shikoku Instrument Co. (Takamatsu; edlinks.che.com/6898-544) and Sanko Kagaku Kogyo Co. (Tokyo; all Japan; edlinks.che.com/6898-545). A prototype of the system has...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/New-reactor-system-makes-products-faster-without-a-solvent_3306.html
August 1, 2007
Dow Chemical Co. (Midland, Mich.; edlinks.che.com/6898-548) and Crystalsev (São Paulo, Brazil; edlinks.che.com/6898-549) are forming a joint venture in Brazil to design and build...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/Sugar-to-PE_3308.html
August 1, 2007
At the end of June, Wuxi NutriRice Co. Ltd. — a joint venture of DSM (Sittard, Netherlands; edlinks.che.com/6898-550) and Bühler AG (Uzwil, Switzerland; edlinks.che.com/6898-551) — opened the world’s first...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/Nutritious-rice_3309.html
July 1, 2007
Although brown coal accounts for about 25% of Australia’s energy supply, it has a high moisture content and, when burned, is a high emitter of carbon dioxide (above 1,200kg/MWh). To address this challenge HRL Ltd. (Melbourne, Australia; edlinks.che.com/6897-531) has developed a variant of integrated-gasification, combined-cycle (IGCC) technology, called IDGCC (integrated drying and gasification...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/A-new-type-of-coal-fired-IGCC-power-plant-to-be-demonstrated_3282.html
July 1, 2007
Hydrogen is produced directly from biomass and other carbonaceous materials, with simultaneous capture of carbon dioxide, in a process being developed by Energy Quest, Inc. (Edmonton, Alta., Canada; edlinks.che.com/6897-533). In the PyStR (pyrolytic steam reforming) process, crushed or shredded feedstock and steam are fed directly into a circulating bed of calcium oxide. The fuel is pyrolized at about...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/This-pyrolysis-process-coproduces-hydrogen-and-carbon-dioxide_3284.html
July 1, 2007
At the end of May, Teijin Twaron B.V. (Arnhem, Netherlands; edlinks.che.com/6897-543) opened a new pilot-production plant for producing a new generation of Twaron para-aramides pulp using a new jet-spinning process. The company did not disclose process...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/Jet-spinning_3292.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.chemengonline.com/processing_and_handling/reaction_engineering/catalysis/Putting-MgH2-in-your-fuel-tank_3288.html
July 1, 2007
Paques B.V. (Balk, Netherlands; edlinks.che.com/6897-535) has developed a cost-effective biological process (flowsheet) for removing phosphates and nitrogen from wastewater. The first commercial installation to use the new process officially opened last month at Aviko (Steenseren, Netherlands), where it is treating 3,000 m3/d of wastewater from potato processing. The plant is owned and operated by...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/biochemistry/A-commercial-debut-for-a-new-process-that-removes-phosphates-and-nitrogen-from-wastewater_3286.html
June 1, 2007
  A high-shear reactor that is said to accelerate chemical reaction rates by up to three orders of magnitude will get its first commercial tryout in the production of biodiesel fuel. Kreido Biofuels, Inc. (Camarillo, Calif.; kreido.com), the reactor's developer, will shortly start up a unit for Foothills Bio-Energies (Lenoir, N.C.; edlinks.che.com/6896-531), where it will add 1 million gal/yr to the...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/High-speed-reactor-willspin-out-biodiesel-fuel_3263.html
June 1, 2007
The standard way to produce ethanol from agricultural waste involves acid hydrolysis to convert hemicellulose to glucose, which is then fermented to obtain ethanol. However, cellulose in the waste is not converted, so cellulase enzymes are generally used to hydrolyze the cellulose to fermentable sugars, a slow and costly process. Researchers at the U.S. Dept. of Agriculture’s...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/Coproduction-of-cellulose-acetate-promises-to-improve-the-economics-of-ethanol-production-_3265.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.chemengonline.com/processing_and_handling/reaction_engineering/catalysis/More-precious-Pt_3276.html
June 1, 2007
A process that promises to improve the economics of ethanol production by coproducing a marketable adhesive is being developed by the USDA's Dairy Forage Research Center (Madison, Wis.; edlinks.che.com/6896-534). Another benefit is that ethanol is made from cellulosic material in a single reactor, rather than the normal two-step method of breaking down cellulose to obtain glucose, then fermenting the...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/biochemistry/-and-these-bacteria-coproduce-ethanol-and-glue_3266.html
May 1, 2007
When a 300,000-m.t./yr plant starts up in 2010 at Bayer’s integrated site in Shanghai, China, it will be the first world-scale application of a new process for producing toluene diisocyanate (TDI) developed by Bayer MaterialScience AG (BMS; Leverkusen, Germany; edlinks.che.com/6895-531). The new process, which was described by BMS’s head of the Polyurethanes Business Unit, Peter Vanacker, at a...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/A-new-process-for-making-TDI-slated-for-its-commercial-debut_3249.html
May 1, 2007
“Green” diesel fuel that can be blended with petroleum-derived diesel fuel has been produced from vegetable oil in a process developed jointly by UOP LLC (Des Plaines, Ill.; edlinks.che.com/6895-533) and Eni S.p.A. (Milan, Italy). The fuel is a “premium diesel blending component” for a refinery, with a boiling range comparable to typical diesel products and a cetane number of 80...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/A-green-process-for-petroleum-refineries_3251.html
May 1, 2007
Biodiesel fuel is typically produced by the transesterification of vegetable oil or animal fats in a batch operation that takes about 1-1/2 h. Hydro Dynamics, Inc. (HDI; Rome, Ga.; edlinks.che.com/6895-534) claims to have cut the residence time to 2–3 s in a continuous process that uses the company’s patented...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/Shock-waves-step-up-biodiesel-fuel-production_3252.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.chemengonline.com/processing_and_handling/reaction_engineering/A-one-step-process-for-making-H2O2_3253.html
May 1, 2007
A coal-gasification reactor that resembles a metals smelter and operates in two cycles (oxidation and reduction), alternately producing hydrogen and syngas, is being developed by Diversified Energy Corp. (Gilbert, Ariz.; edlinks.che.com/6895-536) and Alchemix Corp. (Carefree, Ariz.). In the oxidation cycle (diagram, left), steam is injected into a bath of molten iron-tin alloy to form iron oxide and...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/This-coal-gasification-process-produces-H2-and-CO-rich-syngas-in-separate-streams_3254.html
May 1, 2007
A simpler and more-efficient way to obtain purified terephthalic acid (PTA) has been developed by GTC Technology (Houston, Tex.; edlinks.che.com/6895-537). In conventional PTA production, p-xylene is oxidized to crude terephthalic acid (CTA), then purified by hydrogenation in an aqueous solution. Hydrogenation converts the main impurity, 4-carboxybenzaldehyde (4-CBA), to p-toluic acid, which is more readily...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/A-better-way-to-purify-terephthalic-acid_3255.html
May 1, 2007
Following up on its success with the world’s first commercial plant to use a new oil-recycling process, Puralube GmbH (Elsteraue, Germany; edlinks.che.com/6895-538) plans to build a second plant near the first one, in Zeitz/Elsteraue. Scheduled for startup at the end of 2008, it will have the same capacity as the first, at approximately 80,000 m.t./yr of used oil. Christian Hartmann...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/A-second-plant-for-an-oil-recycling-process_3256.html
May 1, 2007
Metabolix, Inc. (Cambridge, Mass.; edlinks.che.com/6895-550) and ADM Co. (Decatur. Ill.; edlinks.che.com/6895-551) will jointly produce Mirel Natural Plastics — a...
http://www.chemengonline.com/processing_and_handling/reaction_engineering/biochemistry/Biodegradable-plastic_3399.html
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