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Displaying 341 - 360 of 1641 stories.
June 1, 2011
A team from CSIRO Materials Science and Engineering (Melbourne, Australia; www.csiro.au) has developed a new technique for growing smart materials known as metal-organic frameworks (MOFs), which can be used in pollution control, or as catalysts, or for transporting drugs in the human body. MOFs are well-ordered ultra-porous crystals that form multi-dimensional structures with huge surface areas. One gram...
http://www.chemengonline.com/extras/pdf/A-new-way-to-grow-functional-MOFs_8101.html
June 1, 2011
Last month, construction was completed on the world’s first commercial plant to produce a next-generation solid fuel, called Bio-cokes, at Takatsuki, Japan. The renewable material is produced from forest residues and can be used as an alternative to coal-based coke in blast furnaces and...
http://www.chemengonline.com/extras/pdf/Commercial-production-of-Bio-cokes_8102.html
June 1, 2011
  Plant Watch Strategic partnership for acrylonitrile and sodium cyanide in the Middle East April 29, 2011 — Saudi Basic Industries Corp. (SABIC; Riyadh, Saudi Arabia; www.sabic.com), Asahi Kasei Chemicals Corp. (Tokyo; www.asahi-kasei.co.jp) and Mitsubishi Corp. (Tokyo; www.mitsubishicorp.com) have signed a joint venture (JV) agreement to form a limited liability company, Saudi Japanese...
http://www.chemengonline.com/extras/pdf/Worlds-first-cellulosic-biobutanol-refinery-to-be-built-in-Michigan-and-more-business-news_8109.html
May 1, 2011
A freeze-drying system recently commercialized by ULVAC, Inc. (Chigasaki, Japan; www.ulvac.co.jp) produces spherical particles by spraying a solution into a vacuum chamber. The approach has numerous advantages over conventional freeze-drying, and can be used for generating dry powders in the pharmaceutical, food and electronics industries. The system works by spraying a solution through a specialized...
http://www.chemengonline.com/extras/pdf/Freeze-drying-based-on-fine-spray-produces-uniform-microspheres_7927.html
May 1, 2011
By immobilizing carbon nanotubes (CNTs) within polymer membrane pores, scientists at the New Jersey Institute of Technology (NJIT; Newark, N.J.; www.njit.edu) were able to significantly improve the efficiency of desalination via a membrane distillation process. Somenath Mitra and colleagues at NJIT used a vacuum to force a dispersion of CNTs into the pore network of commercially available polymer...
http://www.chemengonline.com/extras/pdf/CNT-enhanced-membranes-show-promise-for-desalination-method_7928.html
May 1, 2011
Spider silk has many unique properties that make it suitable for applications such as coatings and medical products. As a protein, the silk is remarkably stable and is only destroyed physically or digested and recycled by the spider. However, an industrially viable synthetic route to spider silk has eluded researchers over the last 25 years, says Axel Leimer, managing director at AMSilk GmbH...
http://www.chemengonline.com/extras/pdf/A-step-closer-to-commercial-production-of-spider-silk_7929.html
May 1, 2011
Ammonia borane’s (AB) capacity to contain and easily release large amounts of hydrogen has made it an attractive candidate to store the gas for onboard fuel-cell powered vehicles. A major technological hurdle that remains is how to reintroduce hydrogen to spent AB in an energy-efficient way. Now, a team comprised of researchers from Los Alamos National Laboratory (Los Alamos, N.M.; www.lanl.gov) and...
http://www.chemengonline.com/extras/pdf/One-pot-ammonia-borane-recharging-could-boost-fuel-cell-vehicles_7930.html
May 1, 2011
Last month, Carpenter Technology Corp. (Wyomissing, Pa.; www.cartech.com) licensed an alumina-forming austenitic stainless-steel alloy developed at the U.S. Dept. of Energys Oak Ridge National Laboratory (ORNL; Tenn.; www.ornl.gov). The new...
http://www.chemengonline.com/extras/pdf/A-new-high-temperature-alloy_7931.html
May 1, 2011
An Australian team including CSIRO (Melbourne; www.csiro.au) and the Uni- versity of Newcastle (www.newcastle.edu.au) has developed an alternative pathway for producing ultra-low-ash coal that, the team believes, can be used to fuel diesel engines, thus providing the opportunity for diesel engines to replace steam engines for large-scale base-load power generation. The method involves slurrying and...
http://www.chemengonline.com/extras/pdf/Coal-slurry-as-a-substitute-for-diesel-fuel_7932.html
May 1, 2011
Scientists from the National Institute of Advanced Industrial Science and Technology (AIST; Tsukuba, Japan; www.aist.go.jp), in collaboration with Tokyo University of Science and Panchakot Mahavidyalaya University, have demonstrated that a nickel-complex-type organic nanotube (Ni-ONT), developed by AIST, can catalyze oxidation reactions for producing industrial chemicals. For example, the researchers have...
http://www.chemengonline.com/extras/pdf/A-renewable-green-oxidation-catalyst_7933.html
May 1, 2011
Last month, PJI Contract Pte Ltd. (Singapore; www.pjicon.com.sg) opened a production facility for the manufacture of titanium dioxide solution — a self-cleaning, nanocoating material developed at Singapore Institute of Manufacturing Technology (SIMTech; www.simtech.a-star.edu.sg), a research institute of the Agency for Science, Technology...
http://www.chemengonline.com/extras/pdf/Commercial-production-for-a-self-cleaning-coating_7934.html
May 1, 2011
A solar cell made of carbon nanotube (CNT) fiber has been demonstrated by researchers from Fudan University (Shanghai; www.fudan.edu.cn). University professor Huisheng Peng says, “For the fibers we use, the carbon nanotubes exhibit a high degree of alignment with much improved mechanical and electrical properties. Therefore those fibers greatly enhance the short current density, open voltage, and the...
http://www.chemengonline.com/extras/pdf/Solar-cells-made-of-carbon-nanotubes_7935.html
May 1, 2011
After a nine-month field demonstration at BTX, Inc.’s Sleepy well site in Indiana, Pa., Altela Inc.’s (Albuquerque, N.M.; www.altelainc.com) AltelaRain 4000 water desalination system has been shown to turn Marcellus Shale wastewater into distilled water. The demonstration, funded by the U.S. Dept. Of Energy’s National Energy Technology Laboratory (NETL; Pittsburgh, Pa.; www.netl.doe.gov)...
http://www.chemengonline.com/extras/pdf/Desalination-without-pressure-or-membranes_7936.html
May 1, 2011
  Wastewater reuse Aqua-Chem Inc. (Knoxville, Tenn.; www.aqua-chem.com) has developed a filtration-based process for purifying wastewater from large-scale carpet manufacturing. The process effectively removes dyes and other additives from wastewater to reduce concentrations from around 800 ppm to less than 30 ppm. A recent pilot with a U.S.-based carpet manufacturer demonstrated that 70% of wastewater...
http://www.chemengonline.com/extras/pdf/May-Chementator-Briefs_7937.html
May 1, 2011
Motorists filling up at U.S. gasoline stations these days may think that petroleum refiners are making good profits, but it depends on where the station gets its fuel. The industry is plagued by overcapacity and is concerned about government regulations that call for greater use of renewable fuels and tougher pollution control. The National Petrochemical & Refiners Assn. (NPRA, Washington, D.C....
http://www.chemengonline.com/extras/pdf/Petroleum-refining-in-the-spotlight_7943.html
May 1, 2011
Many operations involving ideal gases are readily calculated using a basic knowledge of thermodynamics. Non-ideal gas behavior, however, can deviate significantly from that of ideal gases, and in some cases, large errors can be introduced in process calculations if a gas is improperly assumed to behave ideally. The pressure, volume and temperature ( PVT) relationship of a gas defines its behavior and is...
http://www.chemengonline.com/extras/pdf/Non-ideal-Gas-Calculations-Using-Analytical-Residuals_7981.html
May 1, 2011
As chemical processors continue their quest to process more with less equipment, they are seeking reactors capable of helping with this endeavor. For this reason, many are turning to continuous flow reactors because they provide scaleability and flexibility. However, vendors of specialty batch reactors are making every effort to provide these same characteristics in their models, as well. As a result...
http://www.chemengonline.com/extras/pdf/Getting-a-Reaction_7983.html
May 1, 2011
Wastewater streams from petroleum refineries present some of the largest ranges of variation in contaminant loadings and contain some of the toughest contaminant profiles to treat. These factors render the wastewater treatment processes difficult to control. The most challenging area of wastewater process control in petroleum refining lies in biological treatment, due to the vast number of control...
http://www.chemengonline.com/extras/pdf/Optimizing-Biological-Water-Treatment-in-Petroleum-Refining_7986.html
May 1, 2011
Evonik builds surfactants plant in China March 30, 2011 — Evonik Industries AG (Essen, Germany; www.evonik.com) is building an integrated production plant for organic specialty surfactants at its site in Shanghai, China. With an investment in the upper double-digit million euro range, the production network is scheduled to begin operation in mid 2013.   … and a new catalyst plant in...
http://www.chemengonline.com/extras/pdf/Wacker-expands-its-polysilicon-production-in-Germany-and-other-business-news_7987.html
May 1, 2011
Due to their simplicity of construction, lack of moving parts, ability to operate at a wide range of temperatures and pressures, low capital and operating cost, cyclones have been the workhorse for gas-solid separation in a wide variety of industries. If properly designed and installed, cyclones can be used to control particulate emissions as low as 5 microns in size, and sometimes to smaller sizes in...
http://www.chemengonline.com/extras/pdf/Harnessing-the-Power-of-a-Cyclone_7990.html
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