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Displaying 461 - 480 of 1641 stories.
December 1, 2010
Next spring, Exelus, Inc. (Livingston, N.J.; www.exelusinc.com) plans to pilot a new process that converts crude bioethanol (beer) into Bio-Alkylate — a fuel that is chemically identical to gasoline. New Renewable Fuel Standards (RFS) of the U.S. Environmental Protection Agency (EPA; Washington, D.C.) call for increasing the amount of ethanol that can be added to gasoline to 15 vol.% (so-called E15...
http://www.chemengonline.com/extras/pdf/Scaleup-for-a-new-process-to-make-Bio-Alkylate_6182.html
December 1, 2010
At last month’s Sulfur 2010 Conference (November 1–4; Prague, Czech Republic), Haldor Topsøe A/S (Lyngby, Denmark; www.topsoe.com) introduced its latest sulfuric-acid catalyst, VK-701 Leap5, which promises to help operators of sulfuric acid plants meet more-stringent SO2-emission limits. When used in the final pass of single absorption H2SO4 plants, VK-701 Leap5 reduces SO2 emissions by...
http://www.chemengonline.com/extras/pdf/A-new-catalyst-reduces-SO2-emissions-from-H2SO4-plants_6183.html
December 1, 2010
A demonstration plant for a biological process that produces ethanol and 2,3 butanediol (2,3-BD) from the offgases of industrial plants will be started up in the third quarter of 2011 at a steel mill operated by Bao Steel (Shanghai). Developed by LanzaTech (Auckland, New Zealand; www.lanzatech.co.nz), the process will produce about 100,000 gal/yr of ethanol from a slipstream of stack gases, says Mike...
http://www.chemengonline.com/extras/pdf/Microbes-convert-stack-gases-to-fuels-and-chemicals_6184.html
December 1, 2010
A nanotechnology-based, bottom-up approach to synthesizing catalysts for converting natural gas to ethylene could enable an alternative to the steam-cracking of crude oil, an energy-intensive process conventionally used to produce ethylene, the world’s most valuable commodity chemical. Scientists at the startup Siluria Technologies Inc. (San Francisco, Calif.; www.siluria.com) have developed a...
http://www.chemengonline.com/extras/pdf/New-catalyst-approach-for-methane-to-ethylene-conversion_6185.html
December 1, 2010
A green hydrometallurgical process for recovering gold from ore, developed by Haber, Inc. (Arlington, Mass.; www.habercorp.com), may make its commercial debut in Suriname. Albert Conti, Haber’s CEO, says the Republic of Suriname has made a commitment to develop a strategic partnership with the company for the use of the process. The elimination of mercury pollution is a goal of the government in...
http://www.chemengonline.com/extras/pdf/Commercialization-may-be-in-the-works-for-a-cleaner-gold-recovery-process_6186.html
December 1, 2010
Professor Shu Kobayashi, University of Tokyo (Tokyo, Japan; www.s.u-tokyo.ac.jp), has discovered that bimetallic nanoclusters can catalyze the oxidation of alcohols. Kobayashi’s group has demonstrated the ability to control the reaction pathways of alcohol oxidation to aldehydes, carboxylic acids or esters using nanoclusters composed of a few to...
http://www.chemengonline.com/extras/pdf/Nanoclusters-that-selectively-catalyze-oxidation-reactions_6187.html
December 1, 2010
A miniaturized electron spin resonance (ESR) spectrometer developed by Active Spectrum Inc. (Foster City, Calif.; www.activespectrum.com) can facilitate studies of chemical species with unpaired electrons, such as organic free radicals and transition metal complexes. Available in both online and benchtop models, the Micro-ESR spectrometer greatly reduces the size, cost and complexity of ESR measurements...
http://www.chemengonline.com/extras/pdf/Miniature-ESR-spectrometer-facilitates-study-of-free-radicals_6188.html
December 1, 2010
A team of engineers from the Center for Energy Technology, University of Adelaide (South Australia; www.adelaide.edu.au), the University of Nantes (France) and Mie University (Japan), have proposed a more efficient way to generate power from low to medium temperature (90–260°C) solar and geothermal resources. In the new system, called Renewable Assisted Power Generation (RAPG), the renewable...
http://www.chemengonline.com/extras/pdf/A-more-efficient-use-of-renewable-thermal-energy_6189.html
December 1, 2010
Researchers from the Department of Environmental and Applied Chemical Engineering, Gangneung-Wonju National University (Gangneung, South Korea; www.gwnu.ac.kr) are developing a two-step enzymatic route to biodiesel fuel that promises to reduce production costs. The process employs a lipase-producing bacterium and, sequentially, a commercial enzyme. The...
http://www.chemengonline.com/extras/pdf/Biocatalysts-for-biodiesel-production_6190.html
December 1, 2010
Most of the more than $100 billion in capital spending and $1.2 trillion in prodution costs spent annually by the chemical process industries (CPI) is committed by decisions made in the early phases of process development and plant design. A more disciplined approach to decision-making that fosters early attention to costs and more thorough consideration of available options has the potential to lower...
http://www.chemengonline.com/extras/pdf/Project-design-decision-making-Option-lists_6192.html
December 1, 2010
To solve the task of solid-liquid (S-L) separation in the chemical process industries (CPI) a wide variety of methods are invariably used. Many of these methods are not mutually exclusive and include a selection of technologies that can be expediently combined to provide an efficient operating system. A good understanding of the options available and details of the individual system modules can enhance the...
http://www.chemengonline.com/extras/pdf/Filtration-Centrifuges-An-Overview_6194.html
December 1, 2010
Engineers and others working in the chemical process industries (CPI) generally are experiencing an employment situation that is significantly improved over 12 to 18 months ago, with a tentative optimism among CPI companies driving significant hiring activity. Demand for chemical engineering skills remains strong, reflecting the fact that the chemical sciences represent key enablers in solving many broad...
http://www.chemengonline.com/extras/pdf/Thawing-CPI-Job-Market-spurs-Hires_6196.html
December 1, 2010
Management of process plants requires the understanding and application of the fundamental tenets of safe design, construction, and operation of each facility. In that context, many years of practical experience with systems that use very high-temperature organic heat-transfer media has led to much knowledge regarding design features to adopt and those that should not be repeated.  For the media...
http://www.chemengonline.com/extras/pdf/Heat-Transfer-Fluid-Leaks-Break-the-Fire-Triangle_6197.html
December 1, 2010
As level is a critical parameter for those in the chemical process industries (CPI), level measurement instrumentation has been around for some time. But as processors scramble to become more efficient, reduce waste, control inventory and abide by environmental regulations, level measurement has become even more important. As a result, device manufacturers are improving existing technologies with...
http://www.chemengonline.com/extras/pdf/Level-Measurement-On-the-Level_6199.html
December 1, 2010
      MSA     Software now available for bump testing gas detectors As part of the Altair 4X Gas Detector (photo), a new Altair 4 QuickCheck Station software version is available and is currently installed in production units. This version allows the Altair 4 QuickCheck Station to bump test both Altair 4 and Altair 4X Gas Detectors. — MSA, Pittsburgh, Pa.    ...
http://www.chemengonline.com/extras/pdf/Focus-on-Personal-Protective-Equipment_6206.html
December 1, 2010
Chemicals in production and laboratory environments alike have three distinct lifecycle phases: the first is procurement and inventory storage; the second is use in a manufacturing process or research program; and the third is post-use, including onsite handling, removal and beneficial reuse, recycle or disposal. A number of considerations including regulations, safety, material utilization efficiency...
http://www.chemengonline.com/extras/pdf/Chemical-Lifecycle-Management_6207.html
December 1, 2010
Reciprocating compressors — the most commonly used type of compressor throughout the chemical process industries (CPI) — are flexible and efficient, and they can generate high head (from several bar to several thousand bar) independent of gas density. Worldwide, the installed reciprocating compressor horsepower is approximately two times that of centrifugal compressors. However, the maintenance...
http://www.chemengonline.com/extras/pdf/Optimizing-Reciprocating-Compressors-for-CPI-Plants_6208.html
December 1, 2010
Total and CPI to study coal-to-olefins petrochemical project in China  November 5, 2010 — Total S.A. (Paris, France; www.total.com) and the Chinese energy group China Power Investment Corp. (CPI) intend to build a coal-based petrochemical plant in China. The two companies signed a letter of understanding to study the construction of a plant in Inner Mongolia. Both companies will now launch a...
http://www.chemengonline.com/extras/pdf/Plant-Watch-Mergers-and-Acquisitions_6209.html
November 1, 2010
Municipal Solid Waste to Energy Conversion Processes: Economic, Technical and Renewable Comparisons. By Gary C. Young. John Wiley and Sons, Inc. 111 River St., Hoboken, NJ 07030. Web: wiley.com. 2010. 384 pages. $89.95. Reviewed by Tom McGowan, TMTS Associates Inc. Atlanta, Ga. This book on converting municipal solid waste (MSW) to energy focuses on new developments in the area, with an emphasis on plasma...
http://www.chemengonline.com/extras/pdf/Municipal-solid-waste-to-energy-book-reviewed-by-Tom-McGowan_6096.html
November 1, 2010
Aerzen Maschinenfabrik GmbH (Aerzen, Germany; www.aerzen.com) has commercialized the first rotary lobe compressor, the Delta Hybrid, which combines the technologies of both a rotary lobe blower and a screw compressor. This union reduces the energy consumption by up to 15% compared to conventional compressors, says the company. Whereas the Roots principle of isochoric compression is most suitable for...
http://www.chemengonline.com/extras/pdf/A-new-twist-in-compressor-design-reduces-energy-consumption_6097.html
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