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Archives :: Processing & Handling :: Separation (Liquid-Liquid & Gas-Liquid)

Displaying 201 - 220 of 277 stories.
June 15, 2008
After several years of proven operation in the food- and nutritional-products industry, a patented drying technology is now ready to be applied for any liquid or slurry product. Developed by MCD Technologies, Inc. (Tacoma, Wash.; edlinks.che.com/7373-535), the Refractance Window (RW) system is said to cost about one third as much as freeze drying equipment, and consumes about one third to half the energy...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/evaporation/Chementator-Drying-at-the-speed-of-light_3958.html
May 15, 2008
Carbone Lorraine (CL; Paris, France; edlinks.che.com/7372-538) is launching a new welded-plate heat exchanger, dubbed Heatex, which features plates made of tantalum CL-Clad. The patented CL-Clad technology involves the brazing of steel onto "reactive" metals, such as tantalum, titanium and zirconium, in order to fabricate columns, reactors and (now) heat exchangers used in corrosive service. Such...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/absorption/Chementator-These-Heat-Exchangers-Feature-Tantalum-as-an-Alternative-to-Graphite_3880.html
May 15, 2008
  FIGURE 1. In a typical system for wastewater treatment, the liquid feed is introduced at the top of the column and steam is introduced at the bottom In recent years, steam strippers have become integral parts of industrial plant operations. The goal when designing these types of columns is to have reliable operation for as long as possible. This article details the methodology used when designing...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/distillation/Engineering-Practice-Designing-Steam-Stripping-Columns-for-Wastewater_3863.html
April 28, 2008
Caloric Anlagenbau GmbH (Gräfelfing , Germany; www.caloric.com) has signed its first contract for the supply of a carbon dioxide recovery unit using aMDEA-solvent (activated methyl diethanolamine). The plant was ordered by a German engineering company and is part of a syngas treatment facility to be located in Spain. The recovery unit is...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/absorption/Calorics-1st-aMDEA-based-CO2-recovery-plant_3833.html
April 15, 2008
Last month, the first pilot project that used chilled ammonia to capture carbon dioxide from the fluegas (FG) of a coal-fired power plant started operating at the 1,210-MW We Energies’ Pleasant Prairie power plant in Wisconsin. Alstom (Windsor, Conn.; edlinks.che.com/7371-531) designed, built and will operate the 1.7-MW pilot system, which is part of a cost-sharing partnership of 35 utilities...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Chementator-An-ammonia-based-CO2-capture-process-moves-several-steps-closer-to-commercialization_3807.html
April 15, 2008
Packed Columns [1] A packed column is a vertical, cylindrical pressure vessel containing one or more sections of a packing material over whose surface the liquid flows downward by gravity, as a film or as droplets, between packing elements. Vapor flows upward through the wetted packing, contacting the liquid and facilitating absorption of the vapor into the liquid. Packings are offered in either random or...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/absorption/Facts-at-your-Fingertips-Random-Tower-Packing_3792.html
March 15, 2008
Although nanoporous silica membranes are promising systems for the molecular separation of gases and liquids, they lack microstructural stability in the presence of water at temperatures as low as 60°C. Prolonged exposure to water causes hydrolysis, resulting in the formation of large, non-selective pores and cracks in the membrane. On the other hand, polymeric membranes are less prone to damage by...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Chementator-A-promising-nanosieve-for-dehydrating-solvents-and-biofuels_3739.html
March 15, 2008
Alstom Power, Inc. (Windsor, Conn.; edlinks.che.com/7370-571) and The Dow Chemical Co. (Midland, Mich.; edlinks.che.com/7370-572) have established a joint development and...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Chementator-Amine-scrubbing_3743.html
March 15, 2008
An understanding of instrumentation is valuable in evaluating and troubleshooting column performance Instrumentation is critical to understanding and troubleshooting all processes. Very few engineers specialize in this field, and many learn about instrumentation through experience, myth and rumor. A good understanding of the various types of instrumentation used on columns is a valuable tool for engineers...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/distillation/Feature-Report-Column-Instrumentation-Basics_3729.html
March 15, 2008
Rohm and Haas Co. (Philadelphia, Pa.; edlinks.che.com/7370-578)and Novasep (Nancy, France; edlinks.che.com/7370-579) are forming an exclusive alliance to market and sell...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/ion_exchange/Chementator-Purifying-glycerol_3747.html
March 15, 2008
Separation by a membrane is achieved by creating a boundary between different bulk gas or liquid mixtures. As different solvents and solutes flow through a membrane at different rates, separation is achieved. Here, we will focus on three filtration techniques: microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). These processes are characterized by the size of the particle that can be...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/membranes/Facts-at-Your-Fingertips-Membranes_3722.html
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.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/membranes/Chementator-Ceramic-ethane-to-ethylene-membrane-could-replace-pyrolysis_3740.html
February 15, 2008
Hitachi Zosen Corp. (Hitz; Tokyo, Japan; edlinks.che.com/7369-531) is commercializing a new membrane for a hybrid-distillation system (HDS) that is especially suitable for dehydrating ethanol and isopropanol. The HDS can produce 99.7 vol.% ethanol from ethanol-water mixtures with 10 vol.% H2O at a dehydration rate of 50 kg/m2/h/atm (at 130°C), which is more than two times higher than conventional...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/membranes/Chementator-New-ceramic-membrane-system-doubles-rate-and-slashes-cost-for-dehydrating-ethanol_3682.html
February 15, 2008
Transfield Services Ltd. (edlinks.che.com/7369-549) and WorleyParsons Ltd. (both North Sydney, Australia; edlinks.che.com/7369-550) have been selected to construct two mobile-desalination units (MDU) for contingency use in the Brisbane River. The project is expected to provide 100-million...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/membranes/Chementator-Desalination-barges-based-on-reverse-osmosis_3694.html
February 6, 2008
As of February 1, the Swiss firms Sulzer Chemtech Ltd. (Winterthur; www.sulzerchemtech.com) and Kühni AG (Allschwil; www.kuhni.ch) will work closely together in the field of extraction. The goal of this co-operation is to develop comprehensive solutions for the complex task of packed liquid-liquid extraction (LLE) columns, from pilot tests to industrial...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Sulzer-Chemtech-and-Kuhni-collaborate-on-LLE_3654.html
January 15, 2008
Mitsubishi Heavy Industries, Ltd. (MHI; Tokyo, Japan; edlinks.che.com/7368-533) is marketing a new process that captures carbon dioxide from flue gas (FG) for enhanced oil recovery (EOR). The KM-CDR process uses a proprietary amine-based solvent (KS-1) in a packed column to absorb and regenerate CO2 with less energy than conventional CO2 -recovery processes and with "far less" solvent loss...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/absorption/Chementator-This-CO2-Recovery-Process-Set-to-Enhance-EOR_3614.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.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Chementator-Membrane-Cuts-the-Cost-of-Ethanol-Dehydration-_3575.html
December 15, 2007
A plastic membrane that allows CO2 and other small molecules to move through its pores while largely preventing the movement of larger molecules like CH4, has been developed by a team of researchers from CSIRO Materials Science and Engineering and the Water for a Healthy Country Flagship (Melbourne, Australia; edlinks.che.com/6902-537); the Center for Energy and Environmental Resources, the Department of...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Chementator-This-Membrane-Mimics-Mother-Nature-to-Separate-CO2_3579.html
December 14, 2007
HPD (Plainfield, Ill.; www.veoliawater.com HPD — a Veolia Water Solutions & Technologies company — has been awarded the supply of crystallization and evaporation equipment to TETRA Technologies, Inc. for their new facility located near El Dorado, Arkansas. The new plant will process brine solution from production wells to produce high-quality calcium chloride in both a liquid and a dry...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/crystalization/HPD-to-supply-technologies-for-brine-production-facility_3543.html
November 15, 2007
Last month at Weftec.07, the Annual Water Environment Federation Technical Exhibition and Conference in San Diego, Nihon Genryo Co., Ltd. (Kanagawa, Japan; edlinks.che.com/6901-534) launched for the first time to the North American market its Saito Tank, a granular water filtration system that never requires filter media replacement. Since...
http://www.che.com/processing_and_handling/sep_liquid_liquid_and_gas_liquid/Japanese-water-treatment-filter-enters-U-S-market-boasting-no-need-to-replace-granular-filter-media-ever_3502.html
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