Archives :: Processing & Handling :: Process Chemicals

Displaying 41 - 60 of 83 stories.
March 15, 2008
Ateam of researchers at the U.S. Department of Energy’s Argonne National Laboratory (ANL, Argonne, Ill.; edlinks.che.com/7370-568) has developed a membrane capable of producing olefins from alkanes, and reducing wasted energy and pollutants while improving selectivity and yield. Steam cracking, or pyrolysis, has long been the widespread production method for olefins including ethylene, propylene, and...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-Ceramic-ethane-to-ethylene-membrane-could-replace-pyrolysis_3740.html
February 15, 2008
Biotechnology samples, such as proteins, nucleic acids, biological specimens and pharmaceuticals, are typically stored frozen to extend their shelf life. However, a problem that has plagued researchers for decades is that the buffers used to maintain the pH of the samples lose their efficacy as samples are cooled. Low-temperature biophysical and bioanalytical techniques can also be affected by pH...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-Maintain-pH-even-at-cyrogenic-temperatures-with-this-buffer_3687.html
February 15, 2008
A team of researchers from MIT’s (Cambridge, Mass.; edlinks.che.com/7369-540) chemical and mechanical engineering departments, in association with the U.S. Air Force Research Laboratory (Edwards Air Force Base, Calif.), has developed oil-repellent surfaces with likely separations and safety applications for the chemical process industries. Due to the high-surface-tension of water (γlv = 72.1...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-Super-oleophobic-materials-promise-revolutionary-membranes_3689.html
February 15, 2008
Royal DSM N.V. (Heerlen, Netherlands; edlinks.che.com/7369-542) and the French starch and starch-derivatives company Roquette (Lestrem, France; edlinks.che.com/7369-543) have joined forces to implement and commercialize the fermentive production of biorenewable...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-Bio-based-succinic-acid_3691.html
December 15, 2007
Ethanol production is an energy-intensive process in which about 50% of the cost is for distillation and dehydration of the ethanol. A membrane system that does the same job, but reduces the energy consumption by up to 50%, has been developed by Vaperma Inc. (St-Romuald, Quebec; Canada; edlinks.che.com/6902-533). The method was described by Christian Roy, vice-president, business development, at the Annual...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-Membrane-Cuts-the-Cost-of-Ethanol-Dehydration-_3575.html
December 15, 2007
Japan Oil, Gas, & Metals National Corp. (JOGMEC; Kawasaki; edlinks.che.com/6902-534) and six private companies have established a research consortium to build a confirmation test-plant for a new Japanese gas-to-liquids (JGTL) process. Construction on the 500-bbl/d facility, located at Niigata, Japan, is expected to be onstream by 2009 and tests completed the following year. The $260-million investment...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-A-New-GTL-Process-Takes-a-Step-Closer-to-Commercialization_3576.html
December 15, 2007
Süd-Chemie Zeolites GmbH, a subsidiary of Süd-Chemie AG (Munich, Germany; edlinks.che.com/6902-539) has begun to expand its production plant for new specialty zeolites, and also construct a new wastewater processing plant, at its Bitterfeld site in Germany. The...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Chementator-New-Zeolite-Catalyst_3581.html
November 15, 2007
Liquid density is important to engineers throughout the chemical process industries (CPI). Knowledge of liquid density is required in the design of storage vessels. In hazard analysis, knowledge of liquid density is required in the design of the relief valves to protect the system. In vapor-liquid operations, such as distillation, knowledge of liquid density is required to determine column diameter. For...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Liquid-Density-Of-the-Elements_3497.html
November 15, 2007
Technology to copolymerize carbon dioxide and propylene oxide (PO) was first discovered in 1960s, but has not been commercialized due to the formation of cyclic propylene carbonate (CPC) by a “back-biting” reaction, which leads to the formation of unstable, low-molecular-weight copolymers. This limitation has essentially been eliminated, thanks to a new catalyst developed by Professor Kyoko...
http://www.chemengonline.com/processing_and_handling/process_chemicals/This-catalyst-may-open-the-door-to-green-copolymer-of-CO2_3500.html
November 15, 2007
Rabigh Refining & Petrochemical Co., a 50:50 joint venture of Saudi Arabian Oil Co. (Dhahran, both Saudi Arabia) and Sumitomo Chemical Co. Ltd. (Tokyo, Japan; edlinks.che.com/6901-537), is constructing a new plant to produce 200,000 m.t./yr of propylene oxide (PO). When the plant starts up next year, it will be the second commercial plant to use a byproduct-free process...
http://www.chemengonline.com/processing_and_handling/process_chemicals/A-second-major-plant-for-a-new-PO-process_3511.html
November 12, 2007
The Dow Chemical Co. (www.dow.com) announced today its intent to stop producing and marketing hydroxyalkyl acrylates (HAA) by the end of 2007. The HAA product line includes hydroxyethyl acrylate (HEA) and hydroxypropyl acrylate (HPA). These products are sold largely to major coatings formulators for use in automotive topcoat applications. “Dow’s...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Dow-to-exit-hydroxyalkyl-acrylates-market_3481.html
September 1, 2007
Eastman Chemical Co. (Kingsport, Tenn.; edlinks.che.com/6899-534), which has been producing chemicals via coal gasification (flowsheet) since 1983, will build a $l.6-billion plant in Beaumont, Tex., that will roughly quintuple the size of its current production of chemicals from synthesis gas. The company plans to share ownership 50–50 with a financial equity investor. Scheduled for startup in 2011, the...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Eastman-plans-a-dramatic-increase-in-chemicals-production-from-syngas_3347.html
September 1, 2007
    Glycerin has over 1,500 known end uses, including applications in cosmetics, pharmaceuticals and food products, with the U.S. market alone demanding around 600-million lb/yr. But over the next two years, biodiesel plants are expected to produce an additional 1-billion lb/yr of glycerin as a byproduct (see box below). As a result, the price of glycerin is falling as fast as biodiesel plants...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Outlets-for-glycerin_3365.html
April 1, 2007
A demonstration plant that will produce 5,000 m.t./yr of succinic acid from biomass will be built in Pomacle, France, by BioAmber, a joint venture of Diversified Natural Products (DNP, New York, N.Y.; edlinks.che.com/6894-535) and Agro Industries Recherche et Developpement (ARD, Pomacle). Succinic acid, used in a variety of products, including cosmetics and foods, is produced mainly from maleic anhydride...
http://www.chemengonline.com/processing_and_handling/process_chemicals/A-sustainable-route-to-succinic-acid_3233.html
March 1, 2007
  After nearly a decade of preparation and debate, the European Commission's REACH legislation - a system for the registration, evaluation, authorization and restriction of chemicals - was adopted by the Parliament last December, and enters into force on June 1, 2007. Chemical producers, rather than government authorities, will be legally obligated to conduct and communicate assessments regarding the...
http://www.chemengonline.com/processing_and_handling/process_chemicals/EU-Chemicals-legislation-extends-its-REACH_3320.html
February 1, 2007
Akzo Nobel (Amsterdam; edlinks.che.com/6892-546) has commercialized a biodegradable chelating agent, Dissolvine GL, as a cost-effective, green alternative to the two most frequently used agents, ethylenediamineetetraacetic acid (EDTA) and nitrotriacetic acid (NTA). The product contains...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Green-chelating-agent_3210.html
January 1, 2007
Exelus, Inc. (see also story on p. 11) has demonstrated a process that makes styrene monomer (SM) by the side-chain alkylation of toluene with methanol — an energy-neutral process — instead of the conventional dehydrogenation-of-ethylbenzene route, which is energy-intensive and also a major contributer to methane emissions. The change of feedstocks alone can yield...
http://www.chemengonline.com/processing_and_handling/process_chemicals/Step-out-technology-makes-SM-with-less-energy-and-greenhouse-gas-emission_3187.html
December 1, 2006
For the first time, polyols derived only from castor oil can be used to produce tough coatings, flexible adhesives, soft sealants and elastomers. The Polycin GR Series is the latest polyol line from Vertellus Performance...
http://www.chemengonline.com/processing_and_handling/process_chemicals/A-renewable-precursor-for-the-polyurethane-industry_3054.html
December 1, 2006
Since 2002, the need for electronics-grade phosphoric acid as an etching agent for semiconductors in flat screens (liquid-crystal displays) has increased five fold, according to Thierry Vassalo, general manager at Febex...
http://www.chemengonline.com/processing_and_handling/process_chemicals/H3PO4-recycling_3057.html
December 1, 2006
Eastman Chemical Co. (Kingsport, Tenn.; edlinks.che.com/6519-549) has launched its next-generation PET (polyethylene terephthalate) resin, tradenamed ParaStar, which...
http://www.chemengonline.com/processing_and_handling/process_chemicals/A-new-PET-resin_3058.html
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