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Displaying 241 - 260 of 1635 stories.
March 1, 2012
To optimize process control and overall plant performance, magnetic flowmeters (mag meters) are the most widely used devices in many industrial flow-measurement applications. Mag meters are used to measure the flow of water and other conductive liquids by applying a magnetic field to the flowing liquid. Following Faraday’s law of electromagnetic induction, conductive liquid flowing through the...
http://www.chemengonline.com/extras/pdf/Selecting-Two-and-Four-wire-Magnetic-Flowmeters_9050.html
March 1, 2012
Plant Watch AkzoNobel invests €80 million to supply new Suzano pulp mill in Brazil February 1, 2012 — AkzoNobel (Amsterdam, the Netherlands; www.akzonobel.com) plans to invest €80 million in the construction of a new pulp “chemical island” facility in Brazil. The plant, operated by the company’s Pulp and Paper Chemicals business, Eka Chemicals, will supply the Suzano...
http://www.chemengonline.com/extras/pdf/AkzoNobel-invests-80-million-euros-to-supply-pulp-mill-in-Brazil-and-more-business-news_9053.html
March 1, 2012
Head loss due to friction for fluids traveling through pipes, tubes and ducts is a critical parameter for solving turbulent-flow problems in the chemical process industries. The Colebrook equation is used to assess hydraulic resistance for turbulent flow in both smooth- and rough-walled pipes. The equation contains a dimensionless fluid-flow friction coefficient that must be calculated for the properties...
http://www.chemengonline.com/extras/pdf/Determining-Friction-Factors-in-Turbulent-Pipe-Flow_9059.html
March 1, 2012
Distillation is one of the most extensively used operations in the chemical process industries (CPI). It is a highly energy-intensive unit operation, and continuously rising energy costs make it imperative to look for ways to reduce energy requirements. Some energy-saving configurations can increase capital investment costs, so the benefits need to be weighed carefully. Various techniques, such as heat...
http://www.chemengonline.com/extras/pdf/Distillation-Optimization-By-Vapor-Recompression_9064.html
March 1, 2012
The Interphex 2012 conference and exhibition, which will bring together a wide range of professionals and companies in the arena of pharmaceutical production equipment and services, takes place May 1–3 at the Jacob Javits Convention Center in New York. The tradeshow features over 650 exhibitors showing more than 1,000 product lines in every category in the drug and device manufacturing industry. The...
http://www.chemengonline.com/extras/pdf/Show-Preview-Interphex-2012-Conference-and-Exhibition_9072.html
March 1, 2012
Rotating machines, such as pumps, compressors, gas turbines, steam turbines and electric motors, play crucial roles in most chemical process industries (CPI) facilities. Increasingly, advanced condition monitoring is being used to improve the operation and maintenance of these workhorse components. The use of well-designed condition-monitoring systems, predictive-maintenance strategies and failure...
http://www.chemengonline.com/extras/pdf/Condition-Monitoring-for-Rotating-Machinery_9073.html
March 1, 2012
A challenge in recovering fissile material from spent nuclear fuel is separating radioactive components that cannot be reused as fuel. Researchers at Sandia National Laboratory (Albuquerque, N.M.; www.sandia.gov) have fabricated metal-organic frameworks...
http://www.chemengonline.com/extras/pdf/This-MOF-selectively-captures-radioactive-iodine_9157.html
March 1, 2012
The first commercial-scale biobutanol plant using the Gevo Integrated Fermentation Technology (GIFT) process is set to come online in mid-2012 at the former site of an ethanol facility in Minnesota. In late January, Gevo (Englewood, Colo.; www.gevo.com) was awarded a U.S. patent for the GIFT separation technology, a key component of the process that allows the separation of C3–C6 alcohols from the...
http://www.chemengonline.com/extras/pdf/Biobutanol-to-be-produced-at-retrofitted-ethanol-plant_9166.html
March 1, 2012
A new catalyst design, in which gallium atoms are integrated into the zeolite catalyst structure, can increase yields of aromatic compounds from biomass by 40% in a catalytic fast-pyrolysis process. The higher yields of benzene, toluene and xylenes (BTX), as well as ethylene and propylene, achieved with the gallium-containing zeolite...
http://www.chemengonline.com/extras/pdf/Adding-gallium-to-biomass-pyrolysis-catalyst-increases-BTX-yield_9167.html
March 1, 2012
A proprietary nanoscale catalyst and an updated engineering design have allowed higher conversion rates for transforming the heaviest fractions of crude oil, known as vacuum residue, into high-value transportation fuels, such as diesel. Developed by UOP LLC (Des Plaines, Ill.; www.uop.com) and called Uniflex, the technology combines elements of the CANMET hydrocracking process used by Petro-Canada from...
http://www.chemengonline.com/extras/pdf/Improved-heavy-crude-conversion-process-boosts-diesel-yields_9169.html
February 1, 2012
North America  Biophysical Soc. 56th Annual Meeting. The Biophysical Soc. (Rockville, Md.). Phone: 240-290-5606; Web: biophysics.org/2012meeting San Diego, Calif. February 25–29   3rd Annual ARPA-E Energy Innovation Summit. ARPA-E (Washington, D.C.). Phone: 512-697-8849; Web: arpa-e.energy.gov Washington, D.C. February 27–29   NPRA Annual Meeting. National Petrochemical &...
http://www.chemengonline.com/extras/pdf/Calendar-February-2012-June-2012_8937.html
February 1, 2012
Production of natural gas from shale formations presents key water management challenges. As the number of gas drilling operations continues to grow in shale plays around the world, and the practice of hydraulic fracturing (frac or fracing) of gas wells remains widespread, efficient water use strategies are becoming critical aspects of shale gas operations. Fresh water supplies for drilling and fracturing...
http://www.chemengonline.com/extras/pdf/Frac-Water-Reuse_8943.html
February 1, 2012
One of the reasons that Chemical Engineering will have the honor of celebrating its 110th anniversary this year is its longstanding reputation for original, noteworthy and unbiased articles that cannot be found anywhere else. Our internal policies help protect the magazine’s reputation from a number of threats, but not without relentless tenacity on the part of the editors. Much of that is to be...
http://www.chemengonline.com/extras/pdf/Prevalent-plagiarism_8944.html
February 1, 2012
Plant Watch UOP’s Oleflex technology selected by Dow Chemical January 6, 2012 — UOP LLC (Des Plaines, Ill.; www.uop.com), a Honeywell company, has been selected by The Dow Chemical Co. (Midland, Mich.; www.dow.com) to provide technology to produce propylene at a Dow production site in Texas. Dow Texas Operations will use UOP’s C3 Oleflex technology to produce 750,000 metric tons per year...
http://www.chemengonline.com/extras/pdf/UOPs-Oleflex-technology-selected-by-Dow-Chemical-and-more-business-news_8945.html
February 1, 2012
I was whining to myself, and to anybody who would listen, about the 20 to 30 projects that I have on my desk at all times. Then I met Ms. Regina Henry, who is the coordinator of immigration at Oklahoma State University (OSU). Together, Regina and I counted her active projects. They totaled 460. Regina, two assistants and two part-time assistants are currently helping 460 foreign-born students to study and...
http://www.chemengonline.com/extras/pdf/Graduate-students-journey-to-the-U-S-_8946.html
February 1, 2012
Level measurement and control in process vessels can be one of the most challenging applications in which to obtain consistently safe and reliable results. Part of this difficulty may be due to the fact that the sizing of the vessel and selection and installation of the level instruments are frequently performed by different people at different times, rather than evaluated holistically as a system. Level...
http://www.chemengonline.com/extras/pdf/Vessel-Sizing-and-Level-Instrumentation_8947.html
February 1, 2012
Various misconceptions arise when it comes to the thermal design of cooling towers. Sometimes related parameters, such as range, approach, effectiveness, liquid-to-gas ratio ( L/G), wet-bulb temperature, cooling water temperature, relative humidity, number of transfer units (NTU) and other terms create a confusion for the designer in effectively sizing, selecting and evaluating a particular cooling tower...
http://www.chemengonline.com/extras/pdf/Effective-Thermal-Design-Of-Cooling-Towers_8949.html
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