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Displaying 541 - 560 of 1612 stories.
July 1, 2010
The Industrial Technology Research Institute of Taiwan (ITRI, www.itri.org.tw) is conducting a 10-m3/d pilot-plant project to test the performance of its A2O membrane system for municipal wastewater treatment. The project, which is nearing completion, has already supplied important data, including capital cost, running cost and amount of waste sludge produced. ITRI is conducting negotiations with the...
http://www.che.com/extras/pdf/This-compact-wastewater-treatment-system-reduces-sludge-volumes-and-recovers-biogas_5788.html
July 1, 2010
This Fall, Vantec Co. (Tochigi Prefecture, Japan; www.vantec-jp.com) plans to commercialize a water electrolyzer that incorporates electrodes with a ten-year lifetime — nearly twice that of conventional technology, says the manufacturer. The long-lasting electrodes are expected to reduce the cost of splitting water into hydrogen and oxygen by...
http://www.che.com/extras/pdf/A-hydrogen-generator-featuring-longer-lasting-electrodes_5789.html
July 1, 2010
Nippon Steel Corp. (Tokyo; www.nsc.co.jp) and Kobe Steel, Ltd. (Kobe, Japan; www.kobelco.com) plan to begin construction of a plant to recycle steel-mill dust — a byproduct from the steelmaking process — into direct reduced iron (DRI). The two companies will use steel-mill dust and iron-ore fines from their steel mills as raw materials to recycle the iron from the waste materials into DRI and...
http://www.che.com/extras/pdf/Japanese-JV-to-recycle-steel-mill-dust_5790.html
July 1, 2010
Professor Keiichi Tomishige and colleagues at Tohoku University (Sendai City, Japan; www.che.tohoku.ac.jp/~erec/) have developed a high-performance catalyst for synthesizing 1,3-propanediol (PDO) — a raw material for highly functional poly(trimethyleneteraphthalate) (PPT) fibers — from glycerin as starting material. The catalyst —...
http://www.che.com/extras/pdf/A-new-catalyst-for-the-direct-hydrogenolysis-of-glycerin-into-PDO_5791.html
July 1, 2010
Liquid copper is employed to gasify wastes in a process being developed by Ze-gen (Boston, Mass.; www.ze-gen.com) and will be tested in a small commercial plant in an industrial park in Attleboro, Mass. Scheduled for completion late next year, the plant will convert 150 ton/d of ground wood waste into synthesis gas (syngas). The gas will generate 7 MWth of energy for use by the park, either as electricity...
http://www.che.com/extras/pdf/Novel-gasifier-uses-liquid-copper-as-the-heat-source_5792.html
July 1, 2010
Last month, RWE Power (Cologne, Germany; www.rwe.com) and Linde-KCA-Dresden GmbH (www.linde-kca.com), a subsidiary of The Linde Group (Munich, Germany; www.linde.com), signed a framework agreement on the use of RWE’s WTA technology — a German acronym for fluidized-bed (FB) drying with internal waste-heat utilization. The agreement makes Linde-KCA-Dresden a provider and supplier of WTA. The...
http://www.che.com/extras/pdf/This-lignite-drying-process-increases-the-efficiency-of-power-and-gasification-plants_5793.html
July 1, 2010
A novel catalyst designed by scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley, Calif.; www.lbl.gov) and the University of California at Berkeley (www.berkeley.edu) has shown the ability to catalyze the electrolysis of water into hydrogen and oxygen, and is 70 times cheaper than platinum ($2,000/oz.), which has also been used to catalyze the reaction. In a...
http://www.che.com/extras/pdf/Molybdenum-oxo-catalyst-offers-cheap-route-to-H2-from-water_5794.html
July 1, 2010
New technology for fabricating nanoscale polymer threads boosts yields and improves control compared to conventional methods for producing nanoscale fibers by using a technique analogous to that for making cotton candy. The technology, known as rotary jet spinning (RJS), was developed by engineers at Harvard University (Cambridge, Mass.; www.harvard.edu) and is described in a recent paper in the journal Nano...
http://www.che.com/extras/pdf/Produce-polymer-nanofibers-at-greater-yield-and-control_5795.html
July 1, 2010
Last month, Great River Energy (Maple Grove, Minn.; www.greatriverenergy.com) dedicated its patented DryFining coal enhancement system at its power-generating plant, Coal Creek Station, N.D. The system, developed by Great River Energy, uses waste heat to reduce the moisture level of low-rank coal, such as lignite, from...
http://www.che.com/extras/pdf/Lignite-drying-and-refining-system-formally-dedicated_5796.html
July 1, 2010
  Torrefaction of biomass Last month, the Energy Research Center of the Netherlands (ECN; Petten; www.ecn.nl) and Vattenfall AB (Stockholm, Sweden; www.vattenfall.com) established a partnership to scale up ECNs BO2 technology — a process for upgrading biomass into a high-grade solid fuel. Vattenfall will support ECN to further develop the technology, including testing the process on a large...
http://www.che.com/extras/pdf/July-Chementator-Briefs_5797.html
July 1, 2010
Reduction of greenhouse gas (GHG) emissions continues to be a major issue in national and international public policy, as well as a major focus for companies in the chemical process industries (CPI). Many countries are considering systems that place a price on GHG emissions through a carbon cap-and-trade system, for example. In an environment where GHG emissions have a given price, certain energy...
http://www.che.com/extras/pdf/Conservation-economics-Carbon-pricing-impacts_5799.html
July 1, 2010
In 1952, 37 companies established Fractionation Research, Inc. (FRI). Most of those original members are now gone or absorbed by other companies. Nevertheless, their goal was to study distillation in columns having diameters and heights that were similar to industrial columns. The columns of the world were getting larger and more numerous and were too often being designed using bench-top apparatuses and...
http://www.che.com/extras/pdf/Seeking-out-difficult-situations_5800.html
July 1, 2010
With bio-based chemical production growing, and several newer companies ready to enter commercial production, indications are that biologically derived chemicals will be an increasing force in the petrochemicals market. But bio-based chemical producers must confront the bottom-line requirements of product performance and cost, rather than riding their products’ environmental benefits. Susan Sun...
http://www.che.com/extras/pdf/Bio-Based-Chemicals-Get-Real_5802.html
July 1, 2010
As environmental awareness receives renewed focus in the government, the public and industry, it appears that higher standards will be applied to processors to achieve even higher oxides-of-nitrogen (NOx) removal than in the past. And since selective catalytic reduction (SCR) has been proven to be one of the most efficient systems for NOx removal from high output sources, such as coal-fired power plants...
http://www.che.com/extras/pdf/SCR-New-and-Improved_5803.html
July 1, 2010
New diaphragm valve delivers twice the flow Georg Fischer Piping Systems Launched in April, this new generation of diaphragm valves (photo) is said to have a number of decisive advantages in handling and safety, but also in regard to efficiency. The flow in these valves is, on average, double that of conventional diaphragm valves, says the manufacturer. The central plastic thread, which is used instead of...
http://www.che.com/extras/pdf/July-New-Products-International_5804.html
July 1, 2010
Speake Hale Foose Reda Speed Graham Speake joins Yokogawa Corp. of America (Newnan, Ga.) as principal systems architect for the company’s IA Global Strategic Marketing Center in Dallas. Clark Hale joins Brooks Instrument (Hatfield, Pa.) as president and chief operating officer. Satya Sachdeva becomes vice- president of business intelligence and information...
http://www.che.com/extras/pdf/Graham-Speake-joins-Yokogawa-Corp-of-America-_5805.html
July 1, 2010
Pinch analysis emerged as a systematic design tool during the energy crisis of the late 1970s, particularly for the optimization of heat-exchanger networks and other heat-recovery systems [ 1 ]. Since then, ongoing breakthroughs in the use of pinch analysis have helped to establish mass- and property-integration techniques to assist with waste-minimization efforts [ 2, 3 ]. More recently, pinch analysis...
http://www.che.com/extras/pdf/Optimize-Shift-Scheduling-Using-Pinch-Analysis_5806.html
July 1, 2010
Acoustic coupling in industrial furnaces is an issue that appears to have become more prevalent as designs increase the volumetric heat density of furnaces, and burner technology is required to meet more-stringent emission requirements. The problems associated with acoustic coupling appear in the form of either large oscillations in the heater pressure or tonal and high-level emitted noise. Although the...
http://www.che.com/extras/pdf/Controlling-Acoustic-Coupling_5807.html
July 1, 2010
Relief systems are the last line of defense for chemical process facilities. Verifying their capability to safeguard equipment integrity becomes important as process plants age, increase their capacities to adjust to new market requirements, undergo revamps or face new environmental regulations. In the past, approximately 30% of the chemical process industries’ (CPI) losses could be attributed, at...
http://www.che.com/extras/pdf/Aging-Relief-Systems-Are-they-Working-Properly_5808.html
July 1, 2010
PLANT WATCH U.A.E. to become home of world’s largest CSP plant June 10, 2010 — Masdar (Abu Dhabi; www.masdar.ae) has appointed the bidding consortium of Total (Paris, France; www.total.com) and Abengoa Solar (Seville, Spain; www.abengoasolar.com) to own, build and operate Shams 1, said to be the world’s largest concentrated solar power (CSP) plant, and the first of its kind in the Middle...
http://www.che.com/extras/pdf/U-A-E-to-become-home-of-worlds-largest-CSP-plant-and-more-business-news_5809.html
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